Papers by Xiao Zhu

121 papers
Step-level Verifier-guided Hybrid Test-Time Scaling for Large Language Models (2025.emnlp-main)

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Challenge: Recent training-based TTS methods, such as continued reinforcement learning, have surged in popularity, while training-free TTS approaches are gradually fading from prominence.
Approach: They propose a fine-grained sequential scaling method guided by process verification that integrates training-free TTS methods with other classical parallel scaling methods at the step level.
Outcome: Experiments on five instruction-tuned large language models (LLMs) show that training-free TTS methods can extend reasoning performance boundaries.
CFSum Coarse-to-Fine Contribution Network for Multimodal Summarization (2023.acl-long)

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Challenge: Existing multimodal summarization models ignore the contribution of visual modalities . we propose a novel contribution network to consider different contributions of images .
Approach: They propose a Coarse-to-Fine contribution network for multimodal summarization to consider different contributions of images for summarizing.
Outcome: The proposed system outperforms baselines on the visual and textual modalities.
FuxiTranyu: A Multilingual Large Language Model Trained with Balanced Data (2024.emnlp-industry)

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Challenge: Large language models exhibit significant performance discrepancies between high- and low-resource languages.
Approach: They present an open-source multilingual LLM with 8 billion parameters and a multilingual instruction dataset.
Outcome: The proposed model achieves consistent multilingual representations across languages.
Leveraging Unit Language Guidance to Advance Speech Modeling in Textless Speech-to-Speech Translation (2025.findings-acl)

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Challenge: Existing textless speech-to-speech translation models have two main challenges: 1) learning cross-modal features and 2) learning alignment of difference languages in long sequences.
Approach: They propose a unit language to overcome two main modeling challenges . they propose task prompt modeling to utilize the unit language in guiding the modeling process.
Outcome: The proposed language improves over a strong baseline and achieves comparable performance to models trained with text.
Shared-Private Bilingual Word Embeddings for Neural Machine Translation (P19-1)

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Challenge: Word embedding is central to neural machine translation, but indirectly interfaces with other layers, making them comparatively isolated.
Approach: They propose a shared-private bilingual word embedding which gives a closer relationship between the source and target embedders and reduces the number of model parameters.
Outcome: The proposed model improves on 5 language pairs belonging to 6 different language families and written in 5 different alphabets and significantly reduces model parameters.
Weight Distillation: Transferring the Knowledge in Neural Network Parameters (2021.acl-long)

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Challenge: Knowledge distillation is an effective method for model acceleration and compression.
Approach: They propose to use parameters to distill knowledge from large neural networks to small ones . they propose to do this by using a parameter generator to transfer the knowledge to a small neural network .
Outcome: The proposed method learns a small network 1.88 2.94x faster than the large network but with competitive BLEU points.
Modality Adaption or Regularization? A Case Study on End-to-End Speech Translation (2023.acl-short)

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Challenge: End-to-end speech translation models have limited training data and are often inefficient due to the inconsistency of length and representation between speech and text.
Approach: They find that the "modality gap" between speech and text data is not a major problem in E2E ST . they decouple the encoder to speech encoder and text encoder, and they find that there is a 'capacity gap'
Outcome: The proposed model achieves 29.0 for en-de and 40.3 for fr on the MuST-C dataset.
Bag of Tricks for Optimizing Transformer Efficiency (2021.findings-emnlp)

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Challenge: Improving Transformer efficiency has become increasingly attractive in recent years.
Approach: They propose to combine pruning, quantization, new architectures and training strategies to improve Transformer efficiency.
Outcome: The proposed methods improve the inference efficiency of a strong Transformer system by 3.80x on CPU and 2.52x on GPU.
IFlyEA: A Chinese Essay Assessment System with Automated Rating, Review Generation, and Recommendation (2021.acl-demo)

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Challenge: Automated Essay Assessment (AEA) aims to judge students’ writing proficiency in an automatic way.
Approach: They propose to use Chinese AEA system IFlyEssayAssess to evaluate essays written by native Chinese students from primary and junior schools.
Outcome: The proposed system provides application services for essay scoring, review generation, recommendation, and explainable analytical visualization.
LoRAMoE: Alleviating World Knowledge Forgetting in Large Language Models via MoE-Style Plugin (2024.acl-long)

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Challenge: Experimental results show that, as the instruction data increases, LoRAMoE can significantly improve the ability to process downstream tasks, while maintaining the world knowledge stored in the LLM.
Approach: They propose a framework that introduces several low-rank adapters and integrates them by using a router network to freeze the backbone model and force a portion of LoRAs to focus on leveraging world knowledge to solve downstream tasks.
Outcome: The proposed framework freezes the backbone model and forces a portion of LoRAs to focus on leveraging world knowledge to solve downstream tasks, to alleviate world knowledge forgetting.
MentalSeek-Dx: Towards Progressive Hypothetico-Deductive Reasoning for Real-world Psychiatric Diagnosis (2026.acl-long)

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Challenge: Mental health disorders represent a burgeoning global public health challenge . lack of ecological validity and fine-grained diagnostic supervision limits their utility .
Approach: They propose a medical-specialized LLM trained to internalize clinical reasoning process through supervised trajectory construction and curriculum-based reinforcement learning.
Outcome: The proposed model achieves state-of-the-art with only 14B parameters, establishing a clinically grounded framework for reliable psychiatric diagnosis.
Re-ViLM: Retrieval-Augmented Visual Language Model for Zero and Few-Shot Image Captioning (2023.findings-emnlp)

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Challenge: Existing methods for image-to-text generation store all knowledge within parameters, thus requiring computational-expensive fine-tuning.
Approach: They propose a Retrieval-augmented Visual Language Model that stores all the knowledge within parameters and can be used to retrieve it from the external database.
Outcome: The proposed model significantly boosts performance for image-to-text generation tasks with 4x less parameters compared with baseline methods.
TexSmart: A System for Enhanced Natural Language Understanding (2021.acl-demo)

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Challenge: TexSmart supports fine-grained named entity recognition (NER) Large-scale fine-granular entity types are expected to provide richer semantic information for downstream NLP applications.
Approach: They introduce TexSmart, a text understanding system that supports fine-grained named entity recognition (NER) and enhanced semantic analysis functionalities.
Outcome: The proposed system supports fine-grained named entity recognition (NER) and enhanced semantic analysis functions.
A Simple and Effective Approach to Robust Unsupervised Bilingual Dictionary Induction (2020.coling-main)

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Challenge: Recent work has questioned the robustness of unsupervised bilingual dictionary induction methods on distant language pairs.
Approach: They propose an iterative dimension reduction method to bridge this gap . they propose a method that initializes and self-learning and inducing a dictionary .
Outcome: The proposed method achieves 13.64 55.53% accuracy between English and four distant languages.
I2E: From Image Pixels to Actionable Interactive Environments for Text-Guided Image Editing (2026.acl-long)

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Challenge: Existing text-guided image editing methods rely on end-to-end pixel-level inpainting paradigm . existing models lack such intermediate representations and Reasoning-then-action process .
Approach: They propose a "Decompose-then-Action" paradigm that revisits image editing as an actionable interaction process within a structured environment.
Outcome: The proposed paradigm outperforms existing methods in compositional editing tasks.
Cross-layer Attention Sharing for Pre-trained Large Language Models (2026.tacl-1)

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Challenge: Existing studies focus on compressing the Key-Value cache or grouping attention heads, while overlooking redundancy between layers.
Approach: They propose a lightweight substitute for self-attention in well-trained LLMs that uses feed-forward networks to align attention heads between adjacent layers and low-rank matrices to approximate differences in layer-wise attention weights.
Outcome: The proposed model reduces redundancy by sharing weights across layers while maintaining high response quality while reducing redundant calculations within 53% 84% of the total layers.
MCiteBench: A Multimodal Benchmark for Generating Text with Citations (2025.findings-emnlp)

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Challenge: Existing work focuses on generating citations for text-only content . experimental results reveal MLLMs struggle to ground outputs reliably when handling multimodal input .
Approach: They propose a benchmark to assess the ability of MLLMs to generate text with citations in multimodal contexts.
Outcome: The proposed benchmark assesses the ability of MLLMs to generate text with citations in multimodal contexts.
Multi-Path Transformer is Better: A Case Study on Neural Machine Translation (2022.findings-emnlp)

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Challenge: Extensive experiments on 12 WMT tasks show that shallower multi-path models can achieve similar or even better performance than the deeper model.
Approach: They propose to use a parameter-efficient multi-path structure to fuse features extracted from different paths to achieve better performance.
Outcome: The proposed model can achieve better performance with the same number of parameters than the deeper model.
Enhancing Speech Large Language Models with Prompt-Aware Mixture of Audio Encoders (2025.emnlp-main)

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Challenge: Existing work on integrating audio encoders with large language models (LLMs) has focused on semantic understanding tasks, but different tasks may require distinct features that emphasize either semantic or acoustic aspects.
Approach: They propose to use a prompt-aware mixture to enhance the Speech LLM that uses multiple audio encoders to extract different features based on the prompt.
Outcome: The proposed approach outperforms all single-encoder Speech LLMs on ASR, speaker number verification, and AC tasks.
EIT: Enhanced Interactive Transformer (2024.acl-long)

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Challenge: Existing multi-view learning models prioritize complementarity while ignoring consensus . EMHA allows for efficient modeling of global dependencies among tokens in parallel .
Approach: They propose an enhanced multi-head self-attention (EMHA) that prioritizes complementarity while ignoring consensus.
Outcome: The proposed method favors consensus among heads by introducing two models . it is superior on a wide range of language tasks with a modest increase in model size .
A Confidence-based Partial Label Learning Model for Crowd-Annotated Named Entity Recognition (2023.findings-acl)

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Challenge: Existing models for named entity recognition (NER) are based on large-scale labeled datasets, which always obtain using crowdsourcing.
Approach: They propose a CONfidence-based partial Label Learning method to integrate prior and posterior confidences for crowd-annotated named entity recognition models.
Outcome: The proposed model improves on real-world and synthetic datasets compared with baselines.
Can LLMs Learn to Map the World from Local Descriptions? (2026.acl-long)

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Challenge: Recent advances in large language models have demonstrated strong capabilities in tasks such as code generation and mathematical reasoning.
Approach: They investigate whether large language models can construct coherent global spatial cognition by integrating fragmented relational descriptions.
Outcome: The proposed models can generalize to unseen spatial relationships and exhibit latent representations aligned with real-world spatial distributions.
i-Code V2: An Autoregressive Generation Framework over Vision, Language, and Speech Data (2024.findings-naacl)

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Challenge: i-Code V2 is one of the first models capable of generating natural language from any combination of Vision, Language, and Speech data.
Approach: They propose to create a model that can generate natural language from any combination of Vision, Language, and Speech data.
Outcome: i-Code V2 matches or outperforms state-of-the-art single- and dual-modality baselines on 7 multimodal tasks.
RankPrompt: Step-by-Step Comparisons Make Language Models Better Reasoners (2024.lrec-main)

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Challenge: Existing solutions to reasoning tasks require extensive human annotations or fail in scenarios with inconsistent responses.
Approach: They propose a new method that enables LLMs to self-rank their responses without additional resources.
Outcome: The proposed method improves reasoning performance of ChatGPT and GPT-4 with 13% improvement over existing methods.
Let’s Rectify Step by Step: Improving Aspect-based Sentiment Analysis with Diffusion Models (2024.lrec-main)

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Challenge: Empirical evaluations conducted on eight benchmark datasets underscore the compelling advantages offered by DiffusionABSA when compared against robust baseline models.
Approach: They propose a diffusion model which extracts aspects step by step and learns a denoising process that progressively restores them in a reverse manner.
Outcome: Empirical evaluations on eight benchmark datasets underscore the compelling advantages offered by DiffusionABSA when compared against robust baseline models.
A Dashboard for Mitigating the COVID-19 Misinfodemic (2021.eacl-demos)

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Challenge: a new public dashboard aims to understand the impact of the COVID-19 misinfodemic on Twitter . the dashboard uses a curated catalog of COVId-19 related facts and debunks of misinformation .
Approach: They propose a public dashboard that matches tweets with COVID-19 misinformation . they also propose experiments to analyze the spread of misinformation on twitter .
Outcome: The proposed dashboard uses a curated catalog of COVID-19 related facts and debunks misinformation . it shows the most prevalent information from the catalog among Twitter users in user-selected geographic regions .
Beyond Decoder-only: Large Language Models Can be Good Encoders for Machine Translation (2025.findings-acl)

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Challenge: Recent advances in machine translation have focused on a single pre-trained decoder . encoder-decoder architectures have received relatively little attention in NMT .
Approach: They propose a method that leverages LLMs as MT encoders and pairs them with lightweight decoders to develop universal translation models.
Outcome: The proposed method matches or surpasses baselines in terms of translation quality but achieves 75% reduction in memory footprint of the KV cache.
Revisiting Interpolation Augmentation for Speech-to-Text Generation (2024.findings-acl)

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Challenge: Existing approaches to speech-to-text generation tasks are limited by the lack of extensive labeled datasets.
Approach: They propose to use interpolation augmentation to construct virtual training samples by transforming inputs and labels to enhance generalization in other domains.
Outcome: The proposed approach significantly improves performance across diverse tasks, architectures, and data scales, offering a promising avenue for more robust S2T systems in resource-constrained settings.
Bridging the Granularity Gap for Acoustic Modeling (2023.findings-acl)

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Challenge: Despite the success of speech recognition, how to encode the speech features effectively remains an open problem.
Approach: They propose a Progressive Down-Sampling technique which compresses acoustic features into coarser-grained units containing more complete semantic information, like text-level representation.
Outcome: The proposed method yields comparable or better results on the speech recognition task and inference speedups ranging from 1.20x to 1.47x.
Does Multi-Encoder Help? A Case Study on Context-Aware Neural Machine Translation (2020.acl-main)

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Challenge: In encoder-decoder neural models, multiple encoders are used to represent contextual information in addition to the individual sentence.
Approach: They propose to use multiple context encoders to encode the individual sentences in document-level neural machine translation (NMT) They propose a noisy dropout setup and a single-encoder approach to encode context sentences.
Outcome: The proposed approach encodes the context and the current sentence without contexts.
Joint Semantic and Strategy Matching for Persuasive Dialogue (2023.findings-emnlp)

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Challenge: Persuasive dialogue models rely on utterance semantic matching and a key aspect has been ignored . compared with utterrance semantics, conversation strategies are high-level concepts, which can be informative and provide complementary information to achieve effective persuation.
Approach: They propose to model conversation semantics and strategies to match them using a BERT-like module and an auto-regressive predictor.
Outcome: The proposed model improves state-of-the-art by 5% on a small and 37% on 'large' datasets.
Large-Scale Multimodal Knowledge Graph about Classical Chinese Poetry: Fine-grained Method and Comprehensive Evaluation (2026.findings-acl)

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Challenge: Existing studies on classical Chinese poetry are limited by modality constraints, dataset size, or the level of refinement.
Approach: They propose to construct a large-scale and fine-grained multimodal knowledge graph of classical Chinese poetry using an informative ontology graph and a text-image alignment method.
Outcome: The proposed method collects knowledge about classical Chinese poetry from ontology graphs and performs four tasks that demonstrate its comprehensiveness and high quality.
Revealing the Parallel Multilingual Learning within Large Language Models (2024.emnlp-main)

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Challenge: Large language models (LLMs) can handle multilingual and cross-lingual text within a single input; however, previous studies focusing on using English as the pivot language to enhance language understanding and reasoning focus on using multiple languages.
Approach: They propose to use parallel multilingual input to enhance the model's comprehension of the input and to examine how multilingual processing affects prediction.
Outcome: The proposed model can handle multilingual and cross-lingual text within a single input, but previous studies focused on using English as the pivot language to enhance language understanding and reasoning.
MobileNMT: Enabling Translation in 15MB and 30ms (2023.acl-industry)

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Challenge: Existing work on NMT models is limited in storage, memory, computation and power consumption.
Approach: They propose a mobile machine translation system that can translate in 15MB and 30ms on devices.
Outcome: The proposed system can translate in 15MB and 30ms on mobile devices.
TROVE: A Challenge for Fine-Grained Text Provenance via Source Sentence Tracing and Relationship Classification (2025.acl-long)

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Challenge: Large language models have demonstrated great potential in natural language generation, but their widespread adoption has raised concerns regarding content reliability and accountability.
Approach: They propose a challenge to trace each sentence of a target text back to specific source sentences within potentially lengthy or multi-document inputs.
Outcome: The proposed challenge traces each sentence of a target text back to specific source sentences . the dataset includes 11 scenarios covering QA and summarization in english and Chinese .
Hybrid Alignment Training for Large Language Models (2024.findings-acl)

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Challenge: Existing approaches to align large language models with instructions and preferences are conflicting . et al., 2023b) show that hybrid alignment training can outperform baselines .
Approach: They propose a hybrid alignment training approach based on alternating alignment and modified elastic weight consolidation methods to achieve better collaboration between different alignment tasks.
Outcome: The proposed approach outperforms baseline alignment training methods on summarization and dialogue tasks.
SERM: Self-Evolving Relevance Model with Agent-Driven Learning from Massive Query Streams (2026.findings-acl)

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Challenge: Existing approaches to generate relevance judgments are limited due to dynamic nature of query distributions.
Approach: They propose a self-evolving relevance model approach to generalize queries to practical search scenarios . they use a multi-agent sample miner and a relevance annotator to generate reliable labels .
Outcome: The proposed approach can achieve significant performance gains on a large-scale industrial platform, validated by offline multilingual evaluations and online testing.
PILOT: Planning via Internalized Latent Optimization Trajectories for Large Language Models (2026.acl-long)

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Challenge: Large Language Models lack the capacity to formulate global strategies due to latency and availability constraints.
Approach: They propose a framework to internalize the strategic oversight of large models into intrinsic Latent Guidance by synthesizing a query-conditioned Latent Guide.
Outcome: The proposed framework outperforms strong baselines on mathematical and coding benchmarks with negligible inference latency.
Incorporating Probing Signals into Multimodal Machine Translation via Visual Question-Answering Pairs (2023.findings-emnlp)

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Challenge: Existing studies show that multimodal machine translation systems exhibit decreased sensitivity to visual information when text inputs are complete.
Approach: They propose to generate parallel VQA style pairs from source text to foster more robust cross-modal interaction.
Outcome: The proposed approach generates parallel VQA style pairs from the source text, fostering more robust cross-modal interaction.
BIASEDTALES-ML: A Multilingual Dataset for Analyzing Narrative Attribute Distributions in LLM-Generated Stories (2026.findings-acl)

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Challenge: Existing studies on the use of Large Language Models (LLMs) focus primarily on English, leaving the cross-lingual generalization of aligned behavior underexplored.
Approach: They propose a structured generator-extractor pipeline and a multi-dimensional distributional analysis framework to examine how narrative attributes vary across languages, models, and social conditions.
Outcome: The proposed model reveals substantial cross-lingual variability in narrative generation patterns, indicating that distributions observed in English do not always exhibit similar characteristics in other languages, particularly in lower-resource settings.
Dynamic Curriculum Learning for Low-Resource Neural Machine Translation (2020.coling-main)

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Challenge: Recent work on neural machine translation (NMT) has demonstrated impressive performance improvements and became the de-facto standard.
Approach: They propose a dynamic curriculum learning method to reorder training samples in training using a Transformer-based system.
Outcome: The proposed method outperforms baselines on three low-resource machine translation benchmarks and different sized data of WMT’16 En-De.
HyperText: Endowing FastText with Hyperbolic Geometry (2020.findings-emnlp)

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Challenge: Empirically, we show that HyperText outperforms FastText on a range of text classification tasks with much reduced parameters.
Approach: They propose a model that uses hyperbolic geometry to model tree-like hierarchies in natural language sentences by embedding words or ngrams in hyperbolical space.
Outcome: Empirically, the proposed model outperforms FastText on a range of text classification tasks with much reduced parameters.
Attribution-Based Analysis and Optimization of Modular Agentic Workflows (2026.findings-acl)

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Challenge: Large Language Models (LLMs) have driven the rise of agentic workflows . yet, how can we attribute performance gains to individual upgrades and their interactions?
Approach: They propose a game-theoretic framework that models component upgrades as players and evaluates component coalitions to compute Shapley values.
Outcome: The proposed framework provides interaction-aware attribution and recommendation for model allocation under a fixed workflow structure.
Mem-Gallery: Benchmarking Multimodal Long-Term Conversational Memory for MLLM Agents (2026.acl-long)

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Challenge: Existing benchmarks evaluate multi-session memory in text-only conversations or assess multimodal understanding within localized contexts.
Approach: They propose a benchmark for evaluating multimodal long-term conversational memory in MLLM agents.
Outcome: The proposed framework assesses key memory capabilities along three functional dimensions: memory extraction and test-time adaptation, memory reasoning, and memory knowledge management.
Clustering and Ranking: Diversity-preserved Instruction Selection through Expert-aligned Quality Estimation (2024.emnlp-main)

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Challenge: Existing methods for instruction data selection have limitations such as relying on fragile external APIs, being affected by biases in GPT models, or reducing the diversity of the selected instruction dataset.
Approach: They propose an industrial-friendly, expert-aligned and diversity-preserved instruction data selection method: Clustering and Ranking (CaR).
Outcome: The proposed method outperforms Alpaca's existing methods by 32.1% in GPT-4 evaluations.
Bypassing Neural Evaluations for Fast Audio Editing via Adaptive Trajectory Extrapolation (2026.findings-acl)

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Challenge: Recent advances in audio diffusion models have significantly improved text-to-audio editing via inversion techniques, but these models typically rely on dense, fixed-step sampling trajectories to maintain structural integrity.
Approach: They propose a model-agnostic Adaptive Trajectory Extrapolation framework that accelerates inversion-based editing process by dynamically evaluating only the most critical generative phases.
Outcome: The proposed framework achieves a 3.9 speedup with negligible loss in fidelity.
RankNAS: Efficient Neural Architecture Search by Pairwise Ranking (2021.emnlp-main)

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Challenge: Existing methods require training millions of architectures to estimate the accuracy of the search results.
Approach: They propose a performance ranking method (RankNAS) that uses pairwise ranking and search space pruning to enlarge the search space.
Outcome: The proposed method significantly accelerates NAS through pairwise ranking and search space pruning.
FormulaReasoning: A Dataset for Formula-Based Numerical Reasoning (2026.findings-acl)

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Challenge: Existing datasets for numerical reasoning often lack explicit knowledge of formulas . current datasets do not provide process supervision information, resulting in incomplete reasoning .
Approach: They propose a benchmark for formula-based numerical reasoning with 5,324 questions . they provide annotations in English and Chinese and a formula database as an external knowledge source .
Outcome: The proposed model includes 5,324 questions requiring calculations grounded in external physics principles.
RealHiTBench: A Comprehensive Realistic Hierarchical Table Benchmark for Evaluating LLM-Based Table Analysis (2025.findings-acl)

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Challenge: Existing benchmarks for large language models focus on simple, flat table structures.
Approach: They propose a benchmark to evaluate the performance of both Large Language Models and Multimodal LLMs across a variety of input formats for complex tabular data, including LaTeX, HTML, and PNG.
Outcome: The proposed benchmark evaluates the performance of LLMs and Multimodal LLM models across a variety of input formats for complex tabular data, including LaTeX, HTML, and PNG.
On the Emotion Understanding of Synthesized Speech (2026.acl-long)

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Challenge: Existing models for emotion understanding do not capture fundamental features of synthesized speech.
Approach: They evaluate emotion recognition models on synthesized speech using SER models and generative models.
Outcome: The proposed model can't generalize to synthesized speech because of speech token prediction . generative models tend to infer emotion from textual semantics while ignoring paralinguistic cues.
Towards Transferable Personality Representation Learning based on Triplet Comparisons and Its Applications (2025.emnlp-main)

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Challenge: Existing methods for personality analysis treat corpus as a single unit for classification, but this approach presents several challenges.
Approach: They propose a task paradigm for text-based personality representation learning that uses a triplet personality trend comparison dataset to learn single-sentence personality embeddings with desirable metric properties.
Outcome: The proposed model significantly boosts performance across various applications, including personality detection, personality retrieval, and emotion translation prediction.
SLAM: Towards Efficient Multilingual Reasoning via Selective Language Alignment (2025.coling-main)

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Challenge: Large language models (LLMs) have demonstrated significant improvements in reasoning abilities, but these improvements are primarily focused on English, leading to inferior performance in non-English scenarios.
Approach: They propose a multilingual reasoning alignment approach that fine-tunes the layers responsible for multilingual comprehension in one stage.
Outcome: The proposed method fine-tunes 6 of the 9 layers responsible for multilingual comprehension, while reducing training time by 4.1-11.9 compared to the two-stage method.
DetectBench: Can Large Language Model Detect and Piece Together Implicit Evidence? (2024.findings-emnlp)

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Challenge: Existing LLMs' abilities to detect evidence in long contexts are far inferior to humans.
Approach: They propose a benchmark to assess LLMs' abilities in evidence and multi-step commonsense reasoning within a long context.
Outcome: The proposed method improves the performance of LLMs in evidence detection and commonsense reasoning.
CTC-based Non-autoregressive Speech Translation (2023.acl-long)

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Challenge: End-to-end speech translation (E2E ST) and non-autoregressive (NAR) generation are promising in language and speech processing for their advantages of less error propagation and low latency.
Approach: They develop a model that uses connectionist temporal classification to predict the source and target texts.
Outcome: The proposed model achieves an average BLEU score of 29.5 with a speed-up of 5.67.
TranSFormer: Slow-Fast Transformer for Machine Translation (2023.findings-acl)

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Challenge: Prior work has focused on treating subwords as basic units in developing such systems.
Approach: They propose a slow-fast two-stream learning model that uses a “slow” branch to deal with subword sequences and a "fast" branch to cope with longer character sequences.
Outcome: The proposed model shows consistent BLEU improvements (larger than 1 BLUE point) on several machine translation benchmarks.
Exploiting Target Language Data for Neural Machine Translation Beyond Back Translation (2024.findings-acl)

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Challenge: Neural Machine Translation (NMT) encounters challenges when translating in new domains and low-resource languages.
Approach: They propose a variant of k-nearest neighbor machine translation that utilizes target language data by constructing a pseudo datastore.
Outcome: The proposed method exhibits strong domain adaptation capability in both high-resource and low-resourced machine translation.
ODE Transformer: An Ordinary Differential Equation-Inspired Model for Sequence Generation (2022.acl-long)

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Challenge: Residual networks are an Euler discretization of solutions to Ordinary Differential Equations (ODE).
Approach: They propose a residual block of layers in Transformer that can be described as a higher-order solution to ODE.
Outcome: The proposed architecture can gain large improvements over strong baselines at a slight cost in inference efficiency.
KG-FPQ: Evaluating Factuality Hallucination in LLMs with Knowledge Graph-based False Premise Questions (2025.coling-main)

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Challenge: Existing benchmarks that assess this vulnerability rely on manual construction, resulting in limited size and lack of expandability.
Approach: They propose a method to generate false premise questions based on knowledge graphs . they modify true triplets extracted from KGs to create false premises .
Outcome: The proposed method generates semantically rich FPQs using state-of-the-art GPTs.
HEAL: A Hypothesis-Based Preference-Aware Analysis Framework (2025.findings-emnlp)

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Challenge: Preference optimization methods like DPO are often evaluated on a single response, overlooking other outputs.
Approach: They propose a Hypothesis-based PrEference-aware AnaLysis Framework that formulates preference alignment as a re-ranking process within hypothesis spaces.
Outcome: The proposed evaluation paradigm re-ranks preference alignment as a reranking process within hypothesis spaces.
Position IDs Matter: An Enhanced Position Layout for Efficient Context Compression in Large Language Models (2025.findings-emnlp)

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Challenge: Existing methods to compress context information ignore holistic contextual dependencies.
Approach: They propose a method that adjusts position encodings to minimize the distance between context tokens and special tokens.
Outcome: Enhanced Position Layout (EPL) improves compression of context information in large language models.
Hallucination Mitigation in Natural Language Generation from Large-Scale Open-Domain Knowledge Graphs (2023.emnlp-main)

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Challenge: Graph-to-text models trained on small-scale datasets or datasets with limited variety of graph shapes are not adequate for more realistic large-scale, open-domain settings.
Approach: They propose a novel approach that, given a graph-sentence pair in GraphNarrative, trims the sentence to eliminate portions that are not present in the corresponding graph.
Outcome: The proposed model can be trained on existing datasets and is available on github.
How to Leverage Demonstration Data in Alignment for Large Language Model? A Self-Imitation Learning Perspective (2024.emnlp-main)

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Challenge: Existing methods for fine-tuning large language models are not suitable for task-dependent tasks.
Approach: They propose a generalized self-imitation learning framework which aligns large language models with offline demonstration data.
Outcome: The proposed framework outperforms baselines in many challenging benchmarks . it is available on github.com/tengxiao1/GSIL .
ARTIST: A Transformer-based Chinese Text-to-Image Synthesizer Digesting Linguistic and World Knowledge (2022.findings-emnlp)

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Challenge: Text-to-Image Synthesis (TIS) is a popular task to convert natural language texts into realistic images.
Approach: They propose a transformer-based Chinese text-to-image synthesizer for high-resolution image generation that incorporates linguistic and relational knowledge facts into the model to ensure better performance without the usage of ultra-large models.
Outcome: The proposed model outperforms existing models in Chinese with linguistic and relational knowledge facts.
Enhanced Reasoning for Biomedical Document-Level Relation Extraction via a Novel Cascade Language Model Framework (2026.acl-long)

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Challenge: Pre-trained language models (PLMs) are the leading paradigm in document-level relation extraction.
Approach: They propose a cascade framework that leverages the complementary strengths of PLMs and LLMs through a detect-then-rethink paradigm.
Outcome: The proposed framework improves on BioRED and CDR datasets and improves existing models.
Stacked Acoustic-and-Textual Encoding: Integrating the Pre-trained Models into Speech Translation Encoders (2021.acl-long)

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Challenge: End-to-end Speech Translation (E2E ST) encoders lack global context representation, whereas MT encoder lacks it.
Approach: They propose a Stacked Acoustic-and-Textual Encoding method for speech translation . they propose an adaptor module to alleviate representation inconsistency .
Outcome: The proposed method achieves state-of-the-art BLEU scores of 18.3 and 25.2 on two ST tasks.
Can Large Language Models Understand You Better? An MBTI Personality Detection Dataset Aligned with Population Traits (2025.coling-main)

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Challenge: Existing data on MBTI personality detection are based on self-reported labels and fail to capture the full range of population personality traits.
Approach: They construct a manually annotated MBTI personality detection dataset with soft labels under the guidance of psychologists and use them to identify the task.
Outcome: The MBTIBench is the first manually annotated MBti personality detection dataset with soft labels under the guidance of psychologists.
AdaReTaKe: Adaptive Redundancy Reduction to Perceive Longer for Video-language Understanding (2025.findings-acl)

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Challenge: Multimodal Large Language Models (MLLMs) are limited by context length when processing long videos.
Approach: They propose a training-free method that flexibly reduces redundancy by allocating compression ratios among time and model layers with theoretical guarantees.
Outcome: Experiments on videoMME, MLVU, LongVideoBench, and LVBench show that AdaRETAKE outperforms existing methods by 2.3% and 2.8% for 7B and 72B models.
Empirical Studies of Institutional Federated Learning For Natural Language Processing (2020.findings-emnlp)

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Challenge: federated learning is a promising ideology to unite isolated datasets for machine learning problems.
Approach: They propose to use federated natural language processing networks to train a popular NLP model with applications in sentence intent classification.
Outcome: The proposed model is sensitive to imbalanced data load and tested against a federated model under imbalanced datasets.
MTR-Suite: A Framework for Evaluating and Synthesizing Conversational Retrieval Benchmarks (2026.acl-long)

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Challenge: Existing conversational retrieval benchmarks suffer from costly, sparse human annotation or rigid, unnatural automated heuristics.
Approach: They propose a framework for auditing, synthesizing, and benchmarking conversational retrieval.
Outcome: The proposed framework is based on three LLM-based auditors and a multi-agent system . it mimics production-style challenges (hard topic switching, verbosity) and offers superior discriminative power.
IIET: Efficient Numerical Transformer via Implicit Iterative Euler Method (2025.emnlp-main)

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Challenge: High-order numerical methods enhance performance in tasks like NLP but introduce a performance-efficiency trade-off due to increased computational overhead.
Approach: They propose an iterative implicit Euler Transformer which simplifies high-order numerical methods by iterating implicit Eule.
Outcome: The proposed method improves accuracy and reduces inference overhead by 55% while retaining 99.4% of the original task accuracy.
Parenting: Optimizing Knowledge Selection of Retrieval-Augmented Language Models with Parameter Decoupling and Tailored Tuning (2025.acl-long)

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Challenge: Existing methods for integrating internal and external knowledge lack effective control mechanisms for generating hallucinations and dealing with outdated knowledge.
Approach: They propose a framework that decouples, identifies, and purposefully optimizes parameter subspaces related to adherence and robustness.
Outcome: The proposed framework decouples, identifies, and purposefully optimizes parameter subspaces related to adherence and robustness.
FaStFact: Faster, Stronger Long-Form Factuality Evaluations in LLMs (2025.findings-emnlp)

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Challenge: Prior evaluation pipelines fail to evaluate factuality of long-form LLMs due to inefficiency and costly human assessment.
Approach: They propose a fast and strong evaluation pipeline that can evaluate factuality of long-form LLMs . they propose 'faStFact' to reduce cost of web searching and inference calling .
Outcome: The proposed evaluation pipeline achieves highest alignment with human evaluation and efficiency among existing baselines.
Self-Constructed Context Decompilation with Fined-grained Alignment Enhancement (2024.findings-emnlp)

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Challenge: Decompilation is the process of converting compiled code back into a high-level programming language for analysis when source code is unavailable.
Approach: They propose two methods to improve decompilation performance without fine-tuning and fine-grained alignment enhancement to achieve further improvements.
Outcome: The proposed methods achieved a Re-Executability performance improvement of approximately 3.90% on the Decompile-Eval benchmark, establishing a new state-of-the-art performance of 52.41%.
Reinforcement Learning for Large Language Models via Group Preference Reward Shaping (2025.emnlp-main)

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Challenge: Existing methods for fine-tuning Large Language Models (LLMs) are expensive and sensitive to reward model quality.
Approach: They propose a method that leverages preference-based comparisons rather than precise numerical rewards.
Outcome: Experiments show that GPRS outperforms critic-model-free RL algorithms on RLHF and reasoning tasks.
Improving Autoregressive Grammatical Error Correction with Non-autoregressive Models (2023.findings-acl)

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Challenge: Autoregressive models assign low probabilities to tokens that need corrections . grammatical error correction (GEC) is widely applied to natural language processing tasks .
Approach: They propose to use a non-autoregressive model as an auxiliary model to train GEC models to correct grammatical errors in sentences.
Outcome: The proposed method outperforms baselines on English and Chinese GEC tasks significantly.
Astra: Activation-Space Tail-Eigenvector Low-Rank Adaptation of Large Language Models (2026.findings-acl)

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Challenge: Existing methods for fine-tuning pre-trained models are limited due to suboptimal activation subspaces.
Approach: They propose a method that leverages tail eigenvectors of model output activations to construct low-rank adapters.
Outcome: The proposed method outperforms existing methods across 16 benchmarks and surpasses full fine-tuning in certain scenarios.
Improved Knowledge Distillation for Pre-trained Language Models via Knowledge Selection (2022.findings-emnlp)

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Challenge: Existing studies on knowledge distillation have shown that not all knowledge is necessary for learning a good student model.
Approach: They propose an actor-critic approach to selecting appropriate knowledge to transfer during the process of knowledge distillation.
Outcome: The proposed method outperforms several strong knowledge distillation baselines significantly on the GLUE datasets.
Language-Specific Layer Matters: Efficient Multilingual Enhancement for Large Vision-Language Models (2025.findings-emnlp)

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Challenge: Large vision-language models exhibit an imbalance in multilingual capabilities .
Approach: They propose a training recipe that achieves efficient multilingual enhancement for LVLMs by Precise Language Specific layers fine-tuning.
Outcome: The proposed training recipe achieves efficient multilingual enhancement for LVLMs by fine-tuning language specific layers.
Forgetting Curve: A Reliable Method for Evaluating Memorization Capability for Long-Context Models (2024.emnlp-main)

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Challenge: Existing methods, tasks and benchmarks to measure model’s effective memory length are limited.
Approach: They propose a method called forgetting curve to measure the memorization capability of long-context models.
Outcome: The proposed method is robust to the tested corpus and experimental settings, and can be applied to any model size.
Multi-layer Representation Fusion for Neural Machine Translation (C18-1)

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Challenge: Neural machine translation systems require a number of stacked layers for deep models, but the prediction depends on the sentence representation of the top-most layer with no access to low-level representations.
Approach: They propose a multi-layer representation fusion approach to fusing stacked layers to learn a better representation from the stack.
Outcome: The proposed approach yields 0.92 and 0.56 BLEU points over the strong Transformer baseline on IWSLT German-English and NIST Chinese-English MT tasks respectively.
InstructDiff: Domain-Adaptive Data Selection via Contrastive Entropy for Efficient LLM Fine-Tuning (2026.acl-long)

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Challenge: Existing data selection methods suffer from severe domain specificity . existing methods for general instruction-following fail on reasoning tasks .
Approach: They propose a framework that operationalizes contrastive entropy as a domain-adaptive selection criterion through warmup calibration, bi-directional NLL filtering, and entropic-based ranking.
Outcome: Experiments show that InstructDiff outperforms baseline training on reasoning tasks while using only 10% of the data.
Chart2Code53: A Large-Scale Diverse and Complex Dataset for Enhancing Chart-to-Code Generation (2025.emnlp-main)

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Challenge: Existing Chart2code-related training datasets suffer from limited scale, limited type coverage, and inadequate complexity.
Approach: They propose to synthesize chart2code-related training datasets using web plotting code and chart images to address these challenges.
Outcome: The proposed dataset exhibits the greatest diversity and higher complexity compared to other open-source Chart2code related datasets.
PartialFormer: Modeling Part Instead of Whole for Machine Translation (2024.findings-acl)

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Challenge: Existing feed-forward neural networks have significant computational and parametric overhead.
Approach: They propose a parameter-efficient Transformer architecture that utilizes multiple smaller FFNs to reduce parameters and computation while maintaining essential hidden dimensions.
Outcome: The proposed architecture reduces computational and parameter overhead while maintaining essential hidden dimensions.
AgentReview: Exploring Peer Review Dynamics with LLM Agents (2024.emnlp-main)

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Challenge: Existing methods of peer review analysis do not address multivariate nature of the process, account for latent variables, and are constrained by privacy concerns due to the sensitive nature of data.
Approach: They propose a large language model based peer review simulation framework which effectively disentangles the impacts of multiple latent factors and addresses the privacy issue.
Outcome: The proposed framework disentangles the impacts of multiple latent factors and addresses privacy concerns.
Learning Architectures from an Extended Search Space for Language Modeling (2020.acl-main)

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Challenge: Neural architecture search (NAS) has advanced in recent years but most NAS systems restrict search to learning architectures of a recurrent or convolutional cell.
Approach: They propose a general approach to learn both intra-cell and inter-cell architectures . they implement their approach in a differentiable architecture search system .
Outcome: The proposed approach outperforms the baseline on PTB and WikiText data and shows good transferability to other systems.
CoMeT: Collaborative Memory Transformer for Efficient Long Context Modeling (2026.acl-long)

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Challenge: a novel architecture that enables LLMs to handle arbitrarily long sequences with constant memory usage and linear time complexity is a major barrier to long-context processing.
Approach: They propose a novel architecture that enables LLMs to handle arbitrarily long sequences with constant memory usage and linear time complexity.
Outcome: The proposed architecture can handle arbitrarily long sequences with constant memory usage and linear time complexity.
Training Flexible Depth Model by Multi-Task Learning for Neural Machine Translation (2020.findings-emnlp)

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Challenge: Experimental results show that multitask learning can support decoding in 24 depth configurations and is superior to individual training.
Approach: They propose to use multi-task learning to train a flexible depth model that can adapt to different depth configurations during inference.
Outcome: The proposed model can support decoding in 24 depth configurations and is superior to the individual training and another flexible depth model training method——LayerDrop.
Augmenting Large Language Model Translators via Translation Memories (2023.findings-acl)

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Challenge: Using translation memories (TMs) as prompts is a promising approach to in-context learning of machine translation models.
Approach: They propose to use translation memories (TMs) as prompts to prompt large language models (LLMs) they find that the ability of LLMs to "understand" prompts is helpful .
Outcome: The results are comparable to state-of-the-art NMT systems with bilingual data and are tuned on downstream tasks.
SPS: Steering Probability Squeezing for Better Exploration in Reinforcement Learning for Large Language Models (2026.findings-acl)

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Challenge: Reinforcement learning (RL) training typically improves single-sample success rates but limited exploration of diverse reasoning trajectories.
Approach: They propose a training paradigm that interleaves conventional RL with inverse reinforcement learning (IRL) they propose 'Steering Probability Squeezing' to enhance exploration without external supervision .
Outcome: The proposed training paradigm improves Pass@k and improves exploration of diverse reasoning trajectories without external supervision.
Layer-Wise Multi-View Learning for Neural Machine Translation (2020.coling-main)

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Challenge: Existing approaches to neural machine translation are limited to the topmost encoder layer’s context representation and cannot perceive the lower encoder layers.
Approach: They propose a layer-wise multi-view learning approach to solve this problem by incorporating an auxiliary view into the model.
Outcome: The proposed model can achieve stable results over multiple strong baselines and is agnostic to network architectures.
A Simple and Effective Approach to Coverage-Aware Neural Machine Translation (P18-2)

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Challenge: Neural Machine Translation (NMT) models are used to solve translation problems using long-term models.
Approach: They propose a method to seek a better balance between model confidence and length preference for Neural Machine Translation.
Outcome: The proposed model improves on Chinese-English and English-German translation tasks.
LLaSE-G1: Incentivizing Generalization Capability for LLaMA-based Speech Enhancement (2025.acl-long)

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Challenge: Recent advances in language models have demonstrated strong capabilities in semantic understanding and contextual modeling.
Approach: They propose a LLaMA-based language model that incentivizes generalization capabilities for speech enhancement.
Outcome: The proposed language model outperforms prior task-specific discriminative and generative models in acoustic enhancement tasks.
DREAM: Disentangling Risks to Enhance Safety Alignment in Multimodal Large Language Models (2025.naacl-long)

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Challenge: Multimodal Large Language Models (MLLMs) pose unique safety challenges due to their integration of visual and textual data.
Approach: They propose a method to disentangle risks through step-by-step reasoning within multimodal inputs.
Outcome: The proposed approach improves safety alignment in MLLMs by fine-tuning and iterative Reinforcement Learning from AI feedback.
SciMMIR: Benchmarking Scientific Multi-modal Information Retrieval (2024.findings-acl)

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Challenge: Multi-modal information retrieval (MMIR) is a rapidly evolving field . current benchmarks for image-text pairings overlook the scientific domain .
Approach: They develop a scientific domain-specific MMIR benchmark to evaluate image-text pairings using open-access research paper corpora.
Outcome: The proposed benchmarks are based on 530K image-text pairs extracted from scientific documents with detailed captions.
Copyright Detective: A Forensic System to Evidence LLMs Flickering Copyright Leakage Risks (2026.acl-demo)

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Challenge: **Copyright Detective** is the first interactive forensic system for detecting, analyzing, and visualizing potential copyright risks in LLM outputs.
Approach: They propose a system that detects copyright infringements and visualizes them . they use content recall testing, paraphrase-level similarity analysis and persuasive jailbreak probing .
Outcome: The proposed system detects, analyzes, and visualizes potential copyright risks in LLM outputs.
On Vision Features in Multimodal Machine Translation (2022.acl-long)

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Challenge: Recent work on multimodal machine translation (MMT) has focused on the way of incorporating vision features into translation but little attention is given to the quality of vision models.
Approach: They develop a selective attention model to study the patch-level contribution of an image in multimodal machine translation.
Outcome: The proposed model is able to learn translation from the visual modality on probing tasks and is compared with existing models.
Shallow-to-Deep Training for Neural Machine Translation (2020.emnlp-main)

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Challenge: Experimental results show that deep training is 1:4 faster than training from scratch.
Approach: They propose a shallow-to-deep training method that learns deep models by stacking shallow models.
Outcome: The proposed method is 1:4 faster than training from scratch and achieves BLEU scores of 30:33 and 43:29 on two translation tasks.
COSMOS: Connectivity-Oriented Submodular Maximization for Optimal Subgraph Retrieval (2026.acl-long)

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Challenge: Existing paradigms treat facts independently or employ myopic search, failing to optimize collective subgraph utility.
Approach: They propose a framework that formalizes evidence retrieval as a constrained submodular maximization problem.
Outcome: The proposed framework captures the trade-off between information relevance and structural complexity.
Enhancing Neural Machine Translation Through Target Language Data: A kNN-LM Approach for Domain Adaptation (2025.acl-long)

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Challenge: Neural machine translation (NMT) has made significant progress in recent years, yet often suffers from translating in new domains, which is called domain adaptation.
Approach: They propose a method that leverages semantically similar target language sentences in the kNN framework and generates a probability distribution over these sentences during decoding.
Outcome: The proposed method generates a probability distribution over similar target language sentences and then interpolates with the model’s distribution.
Pay More Attention to Images: Numerous Images-Oriented Multimodal Summarization (2025.naacl-long)

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Challenge: Existing multimodal summarization approaches struggle with scenarios involving multiple images as input.
Approach: They propose a task to generate multimodal summaries by integrating multiple images as input . they propose 'multimodal information evaluation' method that measures differences between generated summary and input based on multimodal input - and compares various methods .
Outcome: The proposed method correlates more closely with human judgments than five widely used metrics .
InternLM-Law: An Open-Sourced Chinese Legal Large Language Model (2025.coling-main)

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Challenge: InternLM-Law is a large language model (LLM) tailored for addressing diverse legal tasks related to Chinese laws.
Approach: They introduce a large language model (LLM) tailored for addressing diverse legal tasks related to Chinese laws.
Outcome: The proposed model performs better than existing models in a variety of legal tasks related to Chinese laws.
Taming Language Models for Text-attributed Graph Learning with Decoupled Aggregation (2025.acl-long)

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Challenge: Existing approaches to learning text-attributed graphs neglect interaction between textual and structural information.
Approach: They propose a framework that integrates textual and structural information into TAG learning . they propose combining semantic aggregation and structural aggregations to improve learning a .
Outcome: The proposed framework outperforms state-of-the-art learning methods while requiring less resources.
Lifelong Pretraining: Continually Adapting Language Models to Emerging Corpora (2022.naacl-main)

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Challenge: Pretrained language models are typically learned over a large, static corpus and fine-tuned for various downstream tasks.
Approach: They propose to continuously update a pretrained language model to adapt to emerging data and to keep track of the model's performance.
Outcome: The proposed model can adapt to new corpora while retaining knowledge in earlier domains.
NiuTrans.LMT: Toward Inclusive and Scalable Multilingual Machine Translation with LLMs (2026.acl-long)

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Challenge: Large language models have significantly advanced Multilingual Machine Translation (MMT) yet scaling to many languages while maintaining robust performance across directions remains challenging.
Approach: They propose a strategy to reduce the number of translations in one direction . they propose auxiliary parallel sentences to promote cross-lingual transfer .
Outcome: The proposed model performs on par with or better than substantially larger baselines.
Teaching Language Models to Self-Improve by Learning from Language Feedback (2024.findings-acl)

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Challenge: Recent advances in Large Language Models (LLMs) generate content that can be untruthful or harmful.
Approach: They propose a method that leverages model feedback for alignment . they use a base language model to generate initial responses, critiqued and refined .
Outcome: The proposed method outperforms strong baselines across diverse tasks and model sizes.
Pairwise Supervised Contrastive Learning of Sentence Representations (2021.emnlp-main)

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Challenge: Recent efforts to improve sentence representation learning have a common weakness . siamese or triplet loss only learns from individual sentence pairs or tripletes .
Approach: They propose a discrimination-based approach to bridge entailment and contradiction understanding with categorical concept encoding.
Outcome: The proposed method outperforms the state-of-the-art method on downstream tasks . it improves 10%–13% on clustering tasks and 5%–6% on STS tasks compared with the previous method .
A Survey of Large Language Model-Based Search Agents (2026.acl-long)

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Challenge: Large Language Models (LLMs) have revolutionized web search, but their integration is static and cannot handle complex contexts.
Approach: They analyze existing research and analyze existing work from the perspectives of architecture, optimization, application, and evaluation.
Outcome: The proposed models can comprehend user intentions and context and execute multi-turn retrieval with dynamic planning, extending search capabilities far beyond the web.
TokenShapley: Token Level Context Attribution with Shapley Value (2025.findings-acl)

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Challenge: Large language models (LLMs) have strong capabilities in in-context learning, but verifying the correctness of their generated responses remains a challenge.
Approach: They propose a token-level attribution method that combines Shapley value-based data attribution with KNN-based retrieval techniques to improve attribution accuracy.
Outcome: TokenShapley outperforms state-of-the-art methods on four benchmarks . it achieves an 11–23% improvement in accuracy on the benchmarks.
Large Margin Representation Learning for Robust Cross-lingual Named Entity Recognition (2025.acl-long)

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Challenge: Existing approaches to name entity recognition neglect distribution skewness and pseudo-label bias . despite promising results, current approaches neglect these problems .
Approach: They propose a framework that optimizes an adaptively reweighted contrastive loss to handle class skewness and pseudo-label bias.
Outcome: The proposed framework outperforms existing methods on multiple benchmarks.
Improved Differentiable Architecture Search for Language Modeling and Named Entity Recognition (D19-1)

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Challenge: Neural architecture search (NAS) is a popular approach for finding new models and freeing researchers from the hard work of designing network architectures.
Approach: They propose differentiable neural architecture search methods for natural language processing . they remove the softmax-local constraint and apply it to named entity recognition .
Outcome: The proposed method outperforms strong baselines on the language modeling task.
Improving Visual-Semantic Embedding with Adaptive Pooling and Optimization Objective (2023.eacl-main)

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Challenge: Recent VSE models combine simple pooling methods with hard triplet loss to improve performance.
Approach: They propose an adaptive pooling strategy that allows the model to learn how to aggregate features through a combination of simple pooling methods.
Outcome: The proposed strategy outperforms current state-of-the-art systems on image-to-text and text-toimage retrieval.
RouteLMT: Learned Sample Routing for Hybrid LLM Translation Deployment (2026.acl-industry)

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Challenge: Existing routing strategies rely on heuristics, external predictors, or absolute quality estimation to capture whether the large model provides a worthwhile improvement over the small one.
Approach: They propose a budget allocation problem for routing large model to large model . they propose heuristics, external predictors, or absolute quality estimation to determine the optimal signal for budgeted decisions.
Outcome: The proposed model outperforms heuristics, quality/difficulty estimation baselines and achieves a superior quality–budget Pareto frontier.
Learning Deep Transformer Models for Machine Translation (P19-1)

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Challenge: Neural machine translation models have advanced the previous state-of-the-art by learning mappings between sequences via neural networks and attention mechanisms.
Approach: They propose to use layer normalization to pass the combination of previous layers to the next layer to improve the model.
Outcome: The proposed model outperforms the shallow Transformer-Big/Base baseline model on English-German and Chinese-English tasks by 0.4-2.4 BLEU points.
CONSTRUCTURE: Benchmarking CONcept STRUCTUre REasoning for Multimodal Large Language Models (2024.findings-emnlp)

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Challenge: Existing multimodal large language models lack the ability to perceive the visual world with a deep concept structure cognition.
Approach: They propose a concept-level benchmark to assess MLLMs’ hierarchical concept understanding and reasoning abilities.
Outcome: The proposed model outperforms state-of-the-art models in concept structure reasoning evaluation.
Rethinking and Improving Multi-task Learning for End-to-end Speech Translation (2023.emnlp-main)

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Challenge: auxiliary tasks are highly consistent with end-to-end speech translation (ST) but their effectiveness has not been thoroughly studied.
Approach: They propose an improved multi-task learning approach for the ST task that bridges the modal gap by mitigating the difference in length and representation.
Outcome: The proposed approach achieves state-of-the-art on the MuST-C dataset with 20.8% of training time required by the current SOTA method.
CMNEE:A Large-Scale Document-Level Event Extraction Dataset Based on Open-Source Chinese Military News (2024.lrec-main)

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Challenge: Current research focuses on the general news or financial domains, with relatively few studies for military domain.
Approach: They propose to annotate Chinese military news events from documents using a schema for the military domain.
Outcome: The proposed dataset is large-scale, document-level open-source for the military domain . it contains 17,000 documents and 29,223 events, which are all manually annotated .
TextFlint: Unified Multilingual Robustness Evaluation Toolkit for Natural Language Processing (2021.acl-demo)

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Challenge: Existing approaches to textual robustness evaluation focus on slightly modifying the input data, which maintains the original meaning and results in a different prediction.
Approach: They propose a multilingual robustness evaluation toolkit for NLP that integrates universal text transformations, task-specific transformations and adversarial attack.
Outcome: The toolkit includes universal text transformation, task-specific transformation, adversarial attack, subpopulation, and their combinations to provide comprehensive robustness analyses.
Fine-Grained and Multi-Dimensional Metrics for Document-Level Machine Translation (2025.naacl-srw)

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Challenge: Large language models excel in machine translation, but most studies focus on sentence-level translation.
Approach: They propose to use LLMs as a judge paradigm to evaluate document-level translations by directly prompting them to translate entire documents in a single pass.
Outcome: The proposed method improves translation quality even without document-level fine-tuning compared to translating sentences separately .
UniCreative: Unifying Long-form Logic and Short-form Sparkle via Reference-Free Reinforcement Learning (2026.findings-acl)

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Challenge: Existing alignment paradigms for creative writing use static reward signals and supervised data.
Approach: They propose a constraint-aware reward model that synthesizes query-specific criteria to provide fine-grained preference judgments.
Outcome: The proposed framework aligns models with human preferences across content quality and structural paradigms without supervised fine-tuning and ground-truth references.
LANG: Reinforcement Learning for Multilingual Reasoning with Language-Adaptive Hint Guidance (2026.acl-long)

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Challenge: Existing methods for enhancing multi-step reasoning have not fully translated to multilingual contexts.
Approach: They propose a framework that leverages language-conditioned hints to guide exploration in non-English reasoning tasks.
Outcome: Empirical results show that the proposed framework improves reasoning performance without compromising language consistency.
Virtual Augmentation Supported Contrastive Learning of Sentence Representations (2022.findings-acl)

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Challenge: Despite profound successes, contrastive representation learning relies on carefully designed data augmentations using domain-specific knowledge.
Approach: They propose a virtual augmentation supported Contrastive Learning of sentence representations . they approximate the neighborhood of an instance via its K-nearest in-batch neighbors .
Outcome: The proposed model outperforms existing methods on a wide range of downstream tasks.

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