Papers by Xing Zhao

39 papers
LLMs Assist NLP Researchers: Critique Paper (Meta-)Reviewing (2024.emnlp-main)

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Challenge: a comparative analysis of paper (meta-)reviews by large language models (LLMs) aims to identify and distinguish LLMs from human activities .
Approach: They present a comparative analysis to identify and distinguish LLM activities from human activities.
Outcome: The proposed analysis aims to improve recognition of instances when someone implicitly uses LLMs for reviewing activities.
FanLoRA: Fantastic LoRAs and Where to Find Them in Large Language Model Fine-tuning (2024.emnlp-industry)

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Challenge: Lowrank adaptation and its variants introduce significant latency in multi-tenant settings, hindering their applications in the industry.
Approach: They propose a framework to fine-tune LoRA modules on a large-scale instruction tuning dataset.
Outcome: The proposed framework outperforms existing PEFT methods and significantly reduces inference latency.
Recurrent Attention Networks for Long-text Modeling (2023.findings-acl)

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Challenge: Existing approaches to encoding long documents using self-attention have been limited by quadratic computational complexities and limited application in long text processing.
Approach: They propose a long-document encoding model that allows the recurrent operation of self-attention.
Outcome: The proposed model extracts global semantics in token-level and document-level representations, making it inherently compatible with both sequential and sequential tasks.
Skeleton-Guided-Translation: A Benchmarking Framework for Code Repository Translation with Fine-Grained Quality Evaluation (2025.findings-emnlp)

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Challenge: Existing code translation benchmarks focus on individual functions, overlooking repository-level challenges like intermodule coherence and dependency management.
Approach: They propose a framework for benchmarking Java-to-C# translation at the repository level . it uses a translation framework guided by skeletons and fine-grained quality evaluation .
Outcome: The proposed framework improves Java-to-C# translation quality at the repository level.
Know-MRI: A Knowledge Mechanisms Revealer&Interpreter for Large Language Models (2025.acl-demo)

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Challenge: Existing interpretation methods only support tasks with specific inputs, limiting their practical applications.
Approach: They propose an extensible module that matches different input data with interpretation methods and consolidates the interpreting outputs.
Outcome: The proposed module can match different input data with interpretation methods and consolidate the interpreting outputs.
Texar: A Modularized, Versatile, and Extensible Toolkit for Text Generation (P19-3)

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Challenge: Texar is an open-source text generation toolkit that supports a broad set of text generation tasks.
Approach: They introduce Texar, an open-source text generation toolkit that supports text generation tasks.
Outcome: Texar supports machine translation, summarization, dialog, content manipulation, and more.
MiLoRA: Efficient Mixture of Low-Rank Adaptation for Large Language Models Fine-tuning (2024.findings-emnlp)

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Challenge: Low-rank adaptation and its mixture-of-experts (MOE) methods are highly effective but introduce significant latency in multi-tenant settings due to the LoRA modules and MOE routers added to multiple linear modules.
Approach: They propose a low-rank adaptation variant that considers each LoRA module as an expert and employs a prompt-aware routing mechanism.
Outcome: Extensive analysis on commonsense reasoning tasks and math reasoning tasks show that MiLoRA outperforms strong PEFT baselines with comparable tunable parameter budgets.
Target-Guided Open-Domain Conversation (P19-1)

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Challenge: a new study aims to improve opendomain chat systems by integrating goals and strategy into the system.
Approach: They propose a structured approach that introduces coarse-grained keywords to control intended content of system responses and attains smooth conversation transition through turn-level supervised learning.
Outcome: The proposed system produces meaningful and effective conversations significantly better than other approaches.
To Copy Rather Than Memorize: A Vertical Learning Paradigm for Knowledge Graph Completion (2023.acl-long)

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Challenge: Existing methods for embedding knowledge graphs implicitly memorize relation rules to infer missing links, but they are difficult to memorize due to the inherent deficiencies of such implicit memorization strategy.
Approach: They propose a vertical learning paradigm that allows to explicitly copy target information from related factual triples for more accurate prediction.
Outcome: The proposed model improves generalization ability and makes distant link prediction significantly easier.
MultiFileTest: A Multi-File-Level LLM Unit Test Generation Benchmark and Impact of Error Fixing Mechanisms (2026.findings-acl)

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Challenge: Existing evaluation benchmarks for LLM unit test generation focus on function-level code rather than on more practical, challenging multi-file codebases.
Approach: They propose a multi-file-level benchmark for unit test generation covering Python, Java, and JavaScript.
Outcome: The proposed benchmarks show that most LLMs exhibit moderate performance on MultiFileTest, highlighting the benchmark’s inherent difficulty.
EFUF: Efficient Fine-Grained Unlearning Framework for Mitigating Hallucinations in Multimodal Large Language Models (2024.emnlp-main)

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Challenge: Existing methods to eliminate hallucinations require expensive human annotation . hallucination in multimodal large language models poses unique challenges for current research .
Approach: They propose a fine-grained unlearning framework that performs gradient ascent to eliminate hallucinations without paired data.
Outcome: The proposed method reduces hallucinations while preserving quality with modest computational overhead.
RealBench: A Chinese Multi-image Understanding Benchmark Close to Real-world Scenarios (2025.findings-emnlp)

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Challenge: RealBench is the first Chinese multimodal multi-image dataset . the dataset contains 9393 samples and 69910 images .
Approach: They propose to create a Chinese multimodal multi-image dataset using 21 models . they use closed-source models that support multi-inputs as well as open-source visual and video models a .
Outcome: The first Chinese multimodal multi-image dataset contains 9393 samples and 69910 images.
STAD: Self-Training with Ambiguous Data for Low-Resource Relation Extraction (2022.coling-1)

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Challenge: Existing approaches for low-resource relation extraction use only confident instances and uncertain instances.
Approach: They propose a self-training approach for low-resource relation extraction using auto-annotated instances.
Outcome: The proposed method improves on two widely used datasets with low-resource settings.
Hebbian-Guided Bi-Directional Rank Adaptation for Parameter-Efficient Fine-Tuning (2026.findings-acl)

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Challenge: Low-Rank Adaptation (LoRA) is a widely used method to fine-tune large language models . but its fixed-rank design cannot capture the varying importance across different layers .
Approach: They propose a framework that bi-directionally reallocates low-rank capacity using Hebbian-inspired importance estimation.
Outcome: Experiments show that HeBiRA improves performance over baselines.
CL-QR: Cross-Lingual Enhanced Query Reformulation for Multi-lingual Conversational AI Agents (2023.emnlp-industry)

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Challenge: Existing QR systems that reformulate defective user queries are limited in English due to the scarcity of non-English QR labels.
Approach: They propose a query reformulation method which reformulates defective user queries to improve non-English QR performance.
Outcome: The proposed framework improves non-English QR performance by leveraging abundant reformulation resources in English.
MECoT: Markov Emotional Chain-of-Thought for Personality-Consistent Role-Playing (2025.findings-acl)

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Challenge: Existing Large Language Models struggle to maintain emotionally consistent and psychologically plausible character personalities.
Approach: They propose a framework that enhances LLMs’ ability to generate authentic personality-driven dialogues through stochastic emotional transitions.
Outcome: The proposed framework achieves 93.3% emotional accuracy on the RAPD dataset and significantly outperforms existing approaches.
Eliminating Biased Length Reliance of Direct Preference Optimization via Down-Sampled KL Divergence (2024.emnlp-main)

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Challenge: Existing studies attributed verbosity to biased labels, but new research shows that DPO can be effective in mitigating verboses.
Approach: They propose to use a method to reduce the amount of verbosity in LLMs by using a downsampling approach.
Outcome: The proposed approach overcomes the problem of verbosity by reducing the length reliance of the proposed algorithm.
Domain-specific Attention with Distributional Signatures for Multi-Domain End-to-end Task-Oriented Dialogue (2023.findings-acl)

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Challenge: Existing methods to construct multi-domain task-oriented dialogue systems are difficult to extend to new domains due to high cost of data annotation and scarcity of labeled dialogue data.
Approach: They propose a domain attention module that uses distributional signatures to construct multi-domain dialogue systems with limited data.
Outcome: The proposed method outperforms baseline models on most metrics while keeping smaller model scale.
ALPS: Attention Localization and Pruning Strategy for Efficient Adaptation of Large Language Models (2025.findings-acl)

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Challenge: Prior research has focused on optimizing general-purpose large language models to downstream tasks . however, these approaches inherently introduce data dependency, which hinders generalization and reusability.
Approach: They propose an algorithm that localizes the most task-sensitive attention heads and prunes by restricting attention training updates to these heads, thereby reducing alignment costs.
Outcome: The proposed algorithm achieves 2% performance improvement over baselines on three tasks while localizing the most task-sensitive attention heads.
KM-BART: Knowledge Enhanced Multimodal BART for Visual Commonsense Generation (2021.acl-long)

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Challenge: Existing models for visual and language understanding are not capable of multimodal reasoning.
Approach: They propose a Transformer-based sequence-to-sequence model capable of reasoning about commonsense knowledge from multimodal inputs of images and texts.
Outcome: The proposed model performs state-of-the-art on the Visual Commonsense Generation task.
Improving the Robustness of Large Language Models via Consistency Alignment (2024.lrec-main)

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Challenge: Large language models have shown tremendous success in following user instructions and generating helpful responses, but their robustness is still far from optimal.
Approach: They propose a two-stage training framework that helps a model generalize on following instructions via similar instruction augmentations.
Outcome: The proposed training framework improves diversity and aligns the model with human expectations by differentiating subtle differences in similar responses.
EduMARS: Can Vision-Language Models Grade Like Teachers? Benchmarking Multimodal, Rubric-Based Assessment on Chinese K-12 Answers (2026.findings-acl)

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Challenge: Existing benchmarks for automated grading of student work fail to evaluate real student responses . existing models fail to assess real student work, especially on cognitively demanding tasks .
Approach: They propose a multimodal benchmark for rubric-aligned evaluation of real Chinese K-12 student answers.
Outcome: The proposed model improves performance and interpretability of existing models on EduMARS . existing models fail to perform on real-world, cognitively demanding tasks, authors say .
Bridging Reasoning and Action: Hybrid LLM–RL Framework for Efficient Cross-Domain Task-Oriented Dialogue (2026.findings-acl)

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Challenge: Existing methods to solve cross-domain task-oriented dialogues are brittle when cross- domain constraints are not directly grounded in surface text or require commonsense inference.
Approach: They propose a framework that makes LLM-derived constraint reasoning usable for RL.
Outcome: Experiments show that the proposed framework outperforms single-model baselines on long-horizon tasks.
When to Continue Thinking: Adaptive Thinking Mode Switching for Efficient Reasoning (2025.findings-emnlp)

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Challenge: Large reasoning models (LRMs) incur excessive computational overhead due to redundant reasoning, especially on simple tasks.
Approach: They propose an Adaptive Self-Recovery Reasoning framework that suppresses unnecessary reasoning and enables implicit recovery.
Outcome: The proposed framework suppresses unnecessary reasoning and enables implicit recovery.
Knowing What LLMs DO NOT Know: A Simple Yet Effective Self-Detection Method (2024.naacl-long)

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Challenge: Recent literature reveals that Large Language Models (LLMs) hallucinate intermittently, which impedes their reliability for further utilization.
Approach: They propose a self-detection method to detect which questions an LLM does not know by combining the two components to identify whether the model generates a non-factual response to the question.
Outcome: The proposed method can detect which questions an LLM does not know across factoid question-answering, arithmetic reasoning, and commonsense reasoning tasks.
ENPMR-Bench: Benchmarking Proactive Memory Retrieval for Emotional Support Agents (2026.findings-acl)

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Challenge: Existing research treats memory as a mechanism for factual retention, neglecting its role in shaping users’ emotional experiences.
Approach: They propose a benchmark for evaluating Emotional Need-aware Proactive Memory Retrieval (ENPMR) it enables agents to infer users’ latent emotional needs and proactively retrieve appropriate memories to support empathetic interaction.
Outcome: The proposed benchmark includes over 1,800 memory-augmented dialogues and defines structured mappings between emotional needs and supportive memory types.
Look Beyond Feeling: Unveiling Latent Needs from Implicit Expressions for Proactive Emotional Support (2025.emnlp-main)

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Challenge: Large language models (LLMs) are gaining popularity as scalable tools for mental health support . however, nearly half of individuals do not receive timely support due to limited selfawareness or reluctance to seek help.
Approach: They propose a proactive emotional support framework that leverages principles of active listening to uncover implicit user needs.
Outcome: The proposed model elicits implicit emotional needs and delivers empathetic support compared to baselines .
AIGT: AI Generative Table Based on Prompt (2025.coling-main)

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Challenge: Tabular data is an essential resource for many fields, but current methods do not fully utilize the rich information available in tables.
Approach: They propose a method that utilizes metadata information to generate tabular data . they propose long-token partitioning algorithms that enable AIGT to model tables of any scale .
Outcome: The proposed approach achieves state-of-the-art on 14 out of 20 public datasets and two real industry datasets within the Alipay risk control system.
MRC-based Nested Medical NER with Co-prediction and Adaptive Pre-training (2024.lrec-main)

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Challenge: Experimental evaluations conducted on the CMeEE, a benchmark for Chinese nested medical named entity recognition (NER) model outperforms the compared state-of-the-art (SOTA) models.
Approach: They propose a model based on machine reading comprehension that uses a task-adaptive pre-training strategy to improve the model’s capability in the medical field.
Outcome: The proposed model outperforms the compared state-of-the-art models on the CMeEE, a benchmark for Chinese nested medical NER.
Does Theory of Mind Improvement Really Benefit Human-AI Interactions? Empirical Findings from Interactive Evaluations (2026.findings-acl)

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Challenge: Existing benchmarks measure ToM capability improvement through story-reading, multiple-choice questions from a third-person perspective, while ignoring the first-person, dynamic nature of human-AI interactions.
Approach: They propose a new paradigm of interactive ToM evaluation with both perspective and metric shifts.
Outcome: The proposed approach improves the performance of four representative LLM enhancement techniques using real-world datasets and a user study.
Psychological Counseling Cannot Be Achieved Overnight: Automated Psychological Counseling Through Multi-Session Conversations (2026.findings-acl)

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Challenge: Existing studies on single-session counseling are limited to a single-session setting.
Approach: They propose to use a large language model to deliver automated psychological counseling to a dataset constructed using real client profiles from publicly available psychological case reports.
Outcome: The proposed model performs better than baseline models across multiple sessions.
Bridging the Temporal Gap in Multimodal LLMs: Deeply Stacking Temporal Tokens for Audio-Visual Speech Recognition (2026.findings-acl)

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Challenge: Existing audio-visual speech recognition systems suffer from a temporal gap . visual speech patterns captured from lip movements provide complementary information that remains inherently robust to acoustic noise.
Approach: They propose a framework that deeply stacks temporal tokens across both encoding and decoding stages to bridge this temporal gap.
Outcome: The proposed framework outperforms existing supervised, self-supervised, and LLM-based methods by 6.1% on LRS2 and 7.8% on LLS3.
LongTableBench: Benchmarking Long-Context Table Reasoning across Real-World Formats and Domains (2025.findings-emnlp)

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Challenge: Evaluating 52 LLMs reveals that only the strongest models maintain robust performance under increasing context lengths and format diversity.
Approach: They propose a benchmark for evaluating long-context reasoning over semi-structured tables across diverse formats, tasks, and domains.
Outcome: The proposed model outperforms compression-based approaches on tasks requiring semantic integration.
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.
MAC-SQL: A Multi-Agent Collaborative Framework for Text-to-SQL (2025.coling-main)

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Challenge: Recent LLM-based Text-to-SQL methods suffer from performance degradation on “huge” databases and complex user questions that require multi-step reasoning.
Approach: They propose a framework that integrates a decomposer agent and auxiliary agents to generate SQL queries from natural language text.
Outcome: The proposed framework achieves comparable execution accuracy on SQL-Llama tasks compared to the baseline model.
Unleashing Low-Bit Inference on Ascend NPUs: A Comprehensive Evaluation of HiFloat Formats (2026.acl-industry)

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Challenge: Low-bit floating-point formats like MXFP and NVFP4 offer new opportunities for precision and efficiency.
Approach: They evaluate HiFloat (HiF8 and HiF4), a family of floating-point formats tailored for Ascend NPUs.
Outcome: The proposed formats excel with high-variance data and are compatible with state-of-the-art quantization frameworks.
VisLingInstruct: Elevating Zero-Shot Learning in Multi-Modal Language Models with Autonomous Instruction Optimization (2024.naacl-long)

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Challenge: Current MMLMs show impressive zero-shot abilities in multi-modal tasks, but their performance depends heavily on the quality of instructions.
Approach: They propose a novel approach to advancing multi-modal language models in zero-shot learning by evaluating and optimizing instructional texts through In-Context Learning.
Outcome: The proposed approach improves zero-shot performance in multi-modal tasks by evaluating and optimizing instructional texts.
Mobile-R1: Towards Interactive Capability for VLM-Based Mobile Agent via Systematic Training (2026.acl-long)

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Challenge: Existing approaches to training agents for visual-language models trap them in local optima, hindering exploration and error correction with the environment.
Approach: They propose a hierarchical training recipe that bridges atomic action execution and strategic task completion.
Outcome: The proposed training recipe bridges atomic action execution and strategic task completion.
Mitigating Training Imbalance in LLM Fine-Tuning via Selective Parameter Merging (2024.emnlp-main)

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Challenge: Existing studies suggest that the order of training samples can affect model performance, but this is not the case.
Approach: They propose to merge supervised fine-tuning models with different data orders to mitigate this imbalance by parameter merging.
Outcome: The proposed method outperforms the weighted-average method on five datasets.

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