Papers by Ying Liu

87 papers
ProUIE: A Macro-to-Micro Progressive Learning Method for LLM-based Universal Information Extraction (2026.findings-acl)

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Challenge: ProUIE improves universal information extraction (UIE) without external information . many LLM-based methods rely on extra schema cues, external resources or complex alignment and verification pipelines .
Approach: They propose a Macro-to-Micro progressive learning approach that improves UIE without external information.
Outcome: ProUIE outperforms instruction-tuned baselines on average for NER and RE while using a smaller backbone.
Progra: Progress-Aware Reinforcement Learning for Multi-Turn Function Calling (2026.findings-acl)

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Challenge: Existing methods for multi-turn function calling are limited by redundancy and lack explicit integration of progress awareness into training.
Approach: They propose a framework that explicitly integrates progress awareness into LLM training for multi-turn function calling.
Outcome: Empirical results show that Progra outperforms existing methods on two public benchmarks.
What Makes a Good Reasoning Chain? Uncovering Structural Patterns in Long Chain-of-Thought Reasoning (2025.emnlp-main)

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Challenge: Recent advances in reasoning with large language models have popularized Long Chain-of-Thought (LCoT) a framework that converts sequential LCoTs into hierarchical tree structures enables deeper structural analysis of LLM reasoning.
Approach: They propose a framework that converts sequential LCoTs into hierarchical tree structures and enables deeper structural analysis of LLM reasoning.
Outcome: The proposed framework can be used to analyze LLM reasoning in a variety of tasks and models.
CLEME2.0: Towards Interpretable Evaluation by Disentangling Edits for Grammatical Error Correction (2025.acl-long)

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Challenge: Existing studies have focused on the interpretability of Grammatical Error Correction (GEC) evaluation metrics, but the interpretabilty of these metrics has been neglected.
Approach: They propose a reference-based metric that describes four aspects of GEC systems: hit-correction, wrong-corrections, under-correcties, and over-corrects.
Outcome: The proposed metric reveals critical qualities and locates drawbacks of GEC systems.
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.
Enhancing Talent Search Ranking with Role-Aware Expert Mixtures and LLM-based Fine-Grained Job Descriptions (2025.emnlp-industry)

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Challenge: Existing talent search approaches fail to capture nuanced job-specific preferences and mitigate noise from subjective human judgments.
Approach: They propose a framework that extracts fine-grained recruitment signals from job descriptions and historical hiring data and employs a role-aware multi-gate MoE network to capture behavioral differences across recruiter roles.
Outcome: The proposed framework improves talent search effectiveness and delivers substantial business value.
FOLIO: Natural Language Reasoning with First-Order Logic (2024.emnlp-main)

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Challenge: Existing benchmarks for logical reasoning in large language models lack language naturalness or limited complexity.
Approach: They propose to use first-order logic annotations to evaluate logical reasoning capabilities of large language models.
Outcome: The proposed dataset evaluates the FOL reasoning ability of supervised fine-tuning on medium-sized language models.
Ambiguity Meets Uncertainty: Investigating Uncertainty Estimation for Word Sense Disambiguation (2023.findings-acl)

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Challenge: Existing supervised methods treat word sense disambiguation as a classification task but ignore uncertainty estimation (UE) in the real-world setting, the data is always noisy and out of distribution.
Approach: They propose to use word sense disambiguation to determine an appropriate sense for a word given its context to determine the most appropriate sense.
Outcome: The proposed model reflects data uncertainty satisfactorily but underestimates model uncertainty.
LearnAlign: Data Selection for LLM Reinforcement Learning with Improved Gradient Alignment (2026.findings-acl)

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Challenge: Reinforcement learning with verifiable rewards (RLVR) is a key technique for enhancing LLMs’ reasoning abilities, yet its data inefficiency remains a major bottleneck.
Approach: They propose a gradient-alignment-based method which intelligently selects the learnable and representative training reasoning data for RLVR post-training.
Outcome: Experiments on five reasoning benchmarks show that the proposed method significantly reduces training data requirements while improving performance.
Granular Entity Mapper: Advancing Fine-grained Multimodal Named Entity Recognition and Grounding (2024.findings-emnlp)

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Challenge: Existing methods for fine-grained content extraction are limited by long-tailed distribution of textual entity categories and performance of object detectors.
Approach: They propose a multi-granularity entity recognition module and a reranking module to integrate hierarchical information of entity categories, visual cues, and external textual resources collectively.
Outcome: The proposed framework achieves state-of-the-art on the fine-grained content extraction task.
Efficient Low-rank Multimodal Fusion With Modality-Specific Factors (P18-1)

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Challenge: Multimodal research is a growing field of artificial intelligence, and fusion is one of the main research problems.
Approach: They propose a low-rank multimodal fusion method which integrates multiple unimodal representations into one compact multimodal representation.
Outcome: The proposed method achieves competitive results on multimodal sentiment analysis, speaker trait analysis, and emotion recognition tasks while reducing computational complexity.
Chinese Lexical Substitution: Dataset and Method (2023.emnlp-main)

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Challenge: Existing benchmarks for lexical substitution (LS) are limited and limited in coverage . despite extensive research on Lexical Substitution in various languages, there is limited evidence for LS in Chinese.
Approach: They propose to use human and machine collaboration to construct a Chinese LS dataset . they combine four unsupervised LS methods to generate candidate substitutes .
Outcome: The proposed method outperforms existing benchmarks on the Chinese lexical substitution task.
DALK: Dynamic Co-Augmentation of LLMs and KG to answer Alzheimer’s Disease Questions with Scientific Literature (2024.findings-emnlp)

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Challenge: Recent advances in large language models have achieved promising performances across various applications, but the challenge of integrating long-tail knowledge continues to impede the seamless adoption of LLMs in specialized domains.
Approach: They propose a dynamic co-augmentation framework for the refinement of large language models and knowledge graphs in the context of Alzheimer's Disease.
Outcome: The proposed framework can be used to study Alzheimer's Disease (AD) using LLMs and KGs.
SPAGBias: Uncovering and Tracing Structured Spatial Gender Bias in Large Language Models (2026.acl-long)

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Challenge: Large language models (LLMs) are being used in urban planning but there is concern that they reproduce or amplify such biases.
Approach: They propose a framework to evaluate spatial gender bias in large language models . they use a taxonomy of 62 urban micro-spaces, a prompt library and three diagnostic layers .
Outcome: The proposed framework identifies structured gender-space associations that go beyond the public-private divide, forming nuanced micro-level mappings.
Clear Up Confusion: Advancing Cross-Domain Few-Shot Relation Extraction through Relation-Aware Prompt Learning (2024.naacl-short)

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Challenge: Existing approaches to few-shot Relation Extraction (RE) are prone to confusion when applying knowledge to a target domain with entirely new types of relations.
Approach: They propose a relation-aware prompt learning method with pre-training to clear confusion by decomposing relation types through an innovative label prompt.
Outcome: The proposed method outperforms previous sota methods and yields better results on cross-domain few-shot RE tasks.
SecureWebArena: A Holistic Security Evaluation Benchmark for LVLM-based Web Agents (2026.findings-acl)

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Challenge: Existing security benchmarks only cover user-level prompts and environmental threats . however, these models are vulnerable to pop-up attacks and prompt injections .
Approach: They propose a security benchmark that covers a set of six attack vectors that span both user-level and environment-level manipulations.
Outcome: The proposed security benchmarks cover a set of six real-world web environments with 2,970 adversarial trajectories and a multi-layered evaluation protocol dissecting agent failures across internal reasoning, behavioral execution, and task outcomes.
P-FOLIO: Evaluating and Improving Logical Reasoning with Abundant Human-Written Reasoning Chains (2024.findings-emnlp)

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Challenge: Existing methods on understanding the capabilities of LLMs in logical reasoning rely on binary entailment classification or synthetically derived rationales.
Approach: They propose to annotate a human-annotated dataset consisting of diverse and complex reasoning chains for a set of realistic logical reasoning stories also written by humans.
Outcome: The proposed model outperforms existing methods on understanding the capabilities of LLMs in logical reasoning by 10% or more.
Towards Robust Few-Shot Relation Classification: Incorporating Relation Description with Agreement (2025.findings-emnlp)

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Challenge: Existing approaches to recognize relational relationships with a few support samples are limited for unlimited queries.
Approach: They propose a simple but effective framework that uses relation descriptions as external knowledge to enhance the model’s comprehension of the relation semantics.
Outcome: The proposed framework outperforms strong baselines while being robust against various NOTA rates.
EET: Experience-Driven Early Termination for Cost-Efficient Software Engineering Agents (2026.findings-acl)

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Challenge: Large language models are reshaping modern software development, but they often incur substantial monetary cost.
Approach: They propose an experience-driven early termination approach that extracts structured experience from prior issue-resolution executions and leverages it to guide early termination during patch generation and selection.
Outcome: The proposed approach reduces cost by 19%–55% with negligible loss in resolution rate (at most 0.2%) EET extracts structured experience from prior issue-resolution executions and leverages it to guide early termination during patch generation and selection.
JointCoder: Exploring Automated ICD Coding on Real-World Chinese EHRs with a Multi-Agent Framework (2026.acl-demo)

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Challenge: Existing automated ICD coding systems face several fundamental challenges due to the limited availability of publicly available Chinese ICD datasets.
Approach: They propose to use a Chinese ICD coding dataset and a multi-agent framework to reformulate ICD as a joint disease-procedure coding task.
Outcome: The proposed system outperforms state-of-the-art methods on real-world Chinese ICD coding datasets and 1.7B-parameter models.
Multi-Turn Response Selection for Chatbots with Deep Attention Matching Network (P18-1)

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Challenge: Existing models for matching dialogue responses rely on semantic and functional dependencies . a recent study only uses the last utterance in context for matching a reply .
Approach: They propose a model that matches a response with its multi-turn context using attention.
Outcome: The proposed model outperforms the state-of-the-art models on two large-scale multi-turn response selection tasks.
Reasoning-Augmented Conversation for Multi-Turn Jailbreak Attacks on Large Language Models (2025.findings-emnlp)

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Challenge: Existing methods for implementing multi-turn jailbreaks struggle to balance semantic coherence with attack effectiveness, resulting in benign semantic drift or ineffective detection evasion.
Approach: They propose a framework that reformulates harmful queries into benign reasoning tasks and leverages LLMs’ strong reasoning capabilities to compromise safety alignment.
Outcome: The proposed framework achieves state-of-the-art attack effectiveness in complex conversational scenarios, with average ASRs increasing by up to 96%.
Approaches and Challenges for Resolving Different Representations of Fictional Characters for Chinese Novels (2024.lrec-main)

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Challenge: Existing automatic text analysis tools and models are often developed for generic, open-domain tasks, restricting in-depth literary studies.
Approach: They adapt a state-of-the-art anaphora resolution model to resolve character representations in Chinese novels by making some modifications and train a widely used BERT fine-tuned model for speaker extraction as assistance.
Outcome: The proposed model is modified to resolve character representations in Chinese novels and train a BERT fine-tuned model for speaker extraction as assistance.
Always the Best Fit: Adaptive Domain Gap Filling from Causal Perspective for Few-Shot Relation Extraction (2023.findings-emnlp)

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Challenge: Existing approaches to cross-domain relation extraction have been limited by domains . data bias between domains can be difficult to fill, especially in few-shot scenarios .
Approach: They propose a framework to bridge the semantic gap caused by data bias between domains . they use syntactic structure, label distribution, and entities to calculate causal effects .
Outcome: The proposed framework fills the domain gap and yields better results on the few-shot task.
Time-RA: Towards Time Series Reasoning for Anomaly Diagnosis with LLM Feedback (2026.findings-acl)

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Challenge: Time series anomaly detection (TSAD) has traditionally focused on binary classification and lacks the fine-grained categorization and explanatory reasoning required for transparent decision-making.
Approach: They propose a time-series reasoning task that reformulates TSAD from discriminative to reasoning-intensive paradigm.
Outcome: The proposed task reformulates TSAD from discriminative to reasoning-intensive paradigm.
Simple but Effective Compound Geometric Operations for Temporal Knowledge Graph Completion (2024.acl-long)

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Challenge: Current methods embed factual knowledge into continuous vector space and apply geometric operations to learn potential patterns in temporal knowledge graphs.
Approach: They propose a temporal knowledge graph completion method that uses two geometric operations to learn missing facts in temporal graphs.
Outcome: The proposed method significantly outperforms existing temporal knowledge graph embedding models.
C-ICL: Contrastive In-context Learning for Information Extraction (2024.findings-emnlp)

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Challenge: Existing methods for in-context learning with large language models focus on using correct or negative examples, ignoring the potential value of incorrect or negative samples.
Approach: They propose a few-shot technique that leverages both correct and incorrect sample constructions to create in-context learning demonstrations.
Outcome: The proposed technique outperforms previous few-shot in-context learning methods on a broad spectrum of related tasks.
K-PLUG: Knowledge-injected Pre-trained Language Model for Natural Language Understanding and Generation in E-Commerce (2021.findings-emnlp)

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Challenge: Existing pre-trained language models are not explicitly aware of domain-specific knowledge, which is essential for downstream tasks in many domains, such as tasks in e-commerce scenarios.
Approach: They propose a knowledge-injected pre-trained language model that can be transferred to both natural language understanding and generation tasks.
Outcome: The proposed model significantly outperforms baselines across the board in e-commerce scenarios.
DuReader-Retrieval: A Large-scale Chinese Benchmark for Passage Retrieval from Web Search Engine (2022.emnlp-main)

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Challenge: Existing datasets for non-English passage retrieval are lacking in quality and accuracy.
Approach: They present a large-scale Chinese dataset for passage retrieval . they reduce false negatives by manually annotating results pooled from multiple retrievers .
Outcome: The proposed dataset reduces false negatives in development and testing sets and removes similar training queries.
Unifying Language Agent Algorithms with Graph-based Orchestration Engine for Reproducible Agent Research (2025.acl-demo)

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Challenge: Language agents powered by large language models (LLMs) have demonstrated remarkable capabilities in understanding, reasoning, and executing complex tasks.
Approach: They propose a flexible framework that addresses engineering overhead and insufficient evaluation frameworks for fair comparison.
Outcome: The proposed framework simplifies language agent development and establishes a foundation for reproducible agent research.
TRUST: Towards Robust Social Bot Detection via Uncertainty-Guided Pseudo-Labeling and Graph Structure Purification (2026.findings-acl)

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Challenge: Existing graph-based detection models are vulnerable to deceptive message propagation, where bots deliberately interact with legitimate users.
Approach: They propose a framework to mitigate deceptive message propagation by node-level uncertainty estimation and graph structure purification.
Outcome: The proposed framework improves on three benchmark datasets and six GNN backbones on real-world social bots.
Intuitive or Dependent? Investigating LLMs’ Behavior Style to Conflicting Prompts (2024.acl-long)

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Challenge: Extensive experiments with seven Large Language Models reveal their varying behaviors.
Approach: They investigate the behaviors of Large Language Models when faced with conflicting prompts versus their internal memory.
Outcome: Extensive experiments with seven LLMs reveal their varying behaviors.
A Multi-Task Learning Framework for Extracting Bacteria Biotope Information (D19-57)

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Challenge: Existing methods to extract information from unstructured text are slow or expensive to get.
Approach: They propose a multi-task transfer multi-learning method for Bacteria Biotope rel+ner task . they use BERT and pre-train it using mask language models and next sentence prediction .
Outcome: The proposed method achieves the best performance on all metrics including slot error rate, precision and recall in the Bacteria Biotope rel+ner subtask.
Fantastic Semantics and Where to Find Them: Investigating Which Layers of Generative LLMs Reflect Lexical Semantics (2024.findings-acl)

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Challenge: Existing research suggests that contextual representations of large language models exhibit subpar performance in downstream tasks, struggling to fully capture the semantic nuances of words.
Approach: They investigate the bottom-up evolution of lexical semantics for a popular LLM . they probing its hidden states at the end of each layer using a contextualized word identification task .
Outcome: The proposed model is able to encode lexical semantics in lower layers while achieving weaker induction in higher layers.
Quite Good, but Not Enough: Nationality Bias in Large Language Models - a Case Study of ChatGPT (2024.lrec-main)

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Challenge: Nationality is a key demographic element that enhances the performance of large language models, but it has received less scrutiny regarding inherent biases.
Approach: They investigated nationality bias in ChatGPT, a large language model for text generation.
Outcome: The proposed model generates 4,680 discourses about nationality in Chinese and English, with 195 countries, 4 temperature settings, and 3 prompt types.
LLM-Guided Semantic Bootstrapping for Interpretable Text Classification with Tsetlin Machines (2026.findings-acl)

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Challenge: Pretrained language models (PLMs) provide strong semantic representations but are costly and opaque.
Approach: They propose a framework that transfers pretrained language models into symbolic form and integrates them into symbolic models.
Outcome: The proposed framework improves interpretability and accuracy across multiple text classification tasks while remaining fully symbolic and efficient.
AoM: Detecting Aspect-oriented Information for Multimodal Aspect-Based Sentiment Analysis (2023.findings-acl)

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Challenge: Existing methods to extract aspects from text-image pairs and recognize their sentiments are noisy and coarsely establishing image-aspect alignment will interfere with aspect-relevant semantic and sentiment information.
Approach: They propose an Aspect-oriented method to detect aspect-relevant semantic and sentiment information by selecting textual tokens and image blocks that are semantically related to the aspects.
Outcome: The proposed method is superior to existing methods in the field of sentiment analysis.
Uncovering Strategic Egoism Behaviors in Large Language Models (2026.findings-acl)

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Challenge: Extensive experiments on 9 proprietary LLMs reveal that SE behaviors are widespread . study identifies egoistic decision-making as a risk for large language models .
Approach: They propose a benchmark to measure egoistic behavior in large language models . they propose toxicity, jailbreak vulnerability and a lightweight mitigation that reinforces situational constraints .
Outcome: The proposed model has a 67.96% occurrence rate and frequently manifests as manipulative coercion.
Memory-enhanced Large Language Model for Cross-lingual Dependency Parsing via Deep Hierarchical Syntax Understanding (2025.findings-emnlp)

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Challenge: Experimental results show that our approach can significantly improve the parsing accuracy of all baseline models, leading to new state-of-the-art results.
Approach: They propose a deep hierarchical syntax understanding approach to improve the cross-lingual semantic memory capability of large language models by implicitly aligning linguistic knowledge between source and target languages.
Outcome: The proposed approach improves the cross-lingual semantic memory capability of large language models by combining implicit multi-task fine-tuning and explicit label bank guiding.
COVID-19 Literature Knowledge Graph Construction and Drug Repurposing Report Generation (2021.naacl-demos)

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Challenge: a new framework to digest relevant biomedical knowledge is needed to combat COVID-19 . quantity of research results is a bottleneck, and false information promoted in publications .
Approach: a team of researchers has developed a framework to extract multimedia knowledge elements from scientific literature to combat COVID-19.
Outcome: a new framework extracts fine-grained multimedia knowledge elements from scientific literature . it provides detailed contextual sentences, subfigures, and knowledge subgraphs as evidence . the framework is based on a case study of drug repurposing .
Look before You Leap: Dual Logical Verification for Knowledge-based Visual Question Generation (2024.lrec-main)

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Challenge: Existing methods for visual question generation focus on leveraging the semantics of inputs to propose questions, ignoring the logical coherence between generated questions and images.
Approach: They propose a logical verification method that checks logical structure between Q, images, answers and acquired outside knowledge by incorporating logical coherence between Q and Q twice in the whole procedure.
Outcome: The proposed method can generate diverse and insightful knowledge-based visual questions on two common datasets.
Granularity Matters: Pathological Graph-driven Cross-modal Alignment for Brain CT Report Generation (2023.emnlp-main)

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Challenge: Existing methods for automatic Brain CT reports are limited by coarse-grained supervision and coupled cross-modal alignment.
Approach: They propose a pathological Graph-driven cross-modal alignment model that learns fine-grained visual cues and aligns them with textual words.
Outcome: The proposed model can improve the automatic generation of Brain CT reports and contribute to improved cranial disease diagnosis.
WebUncertainty: Dual-Level Uncertainty Driven Planning and Reasoning For Autonomous Web Agent (2026.findings-acl)

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Challenge: Existing web agents struggle with complex tasks due to rigid planning strategies and hallucination-prone reasoning.
Approach: They propose a task-uncertainty-driven Adaptive Planning Mechanism that adaptively selects planning modes to navigate unknown environments.
Outcome: The proposed framework performs better on the WebArena and WebVoyager benchmarks than existing frameworks.
The Art of SOCRATIC QUESTIONING: Recursive Thinking with Large Language Models (2023.emnlp-main)

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Challenge: Chain-of-Thought (CoT) prompting relies on the initial decisions, causing errors in early steps to accumulate and impact the final answers.
Approach: They propose a divide-and-conquer style algorithm that leverages large language models to raise and answer sub-questions until collecting enough information to tackle the original one.
Outcome: The proposed algorithm is more robust to errors and errors than CoT prompting and Tree-of-Thought prompting methods.
Summarize before Aggregate: A Global-to-local Heterogeneous Graph Inference Network for Conversational Emotion Recognition (2020.coling-main)

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Challenge: Existing studies focus on modeling emotion influences with utterance-level features, with little attention paid on phrase-level semantic connection between utterrances.
Approach: They propose a two-stage Summarization and Aggregation Graph Inference Network which integrates inference for topic-related emotional phrases and local dependency reasoning over neighbouring utterances in a global-to-local fashion.
Outcome: The proposed model outperforms the state-of-the-art models on three CER benchmark datasets.
A Top-down Graph-based Tool for Modeling Classical Semantic Maps: A Case Study of Supplementary Adverbs (2025.naacl-long)

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Challenge: Semantic map models (SMMs) construct a network-like conceptual space from cross-linguistic instances or forms based on the connectivity hypothesis.
Approach: They propose a graph-based algorithm that automatically generates conceptual spaces and SMMs in a top-down manner.
Outcome: The proposed model is compared with human annotations and other automated methods on cross-linguistic supplementary adverbs.
Characterizing the Impacts of Instances on Robustness (2023.findings-acl)

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Challenge: Existing defense approaches focus on developing new model structures or training algorithms, but they do little to tap the potential of training instances.
Approach: They propose a method that can distinguish between robust and non-robust instances according to the model’s sensitivity to perturbations on individual instances during training.
Outcome: The proposed method can distinguish between robust and non-robust instances according to the model’s sensitivity to perturbations on individual instances during training.
SeaExam and SeaBench: Benchmarking LLMs with Local Multilingual Questions in Southeast Asia (2025.findings-naacl)

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Challenge: Large Language Models (LLMs) have shown remarkable performance across various English benchmarks, including both human exam datasets such as MMLU and instruction-following datasets.
Approach: They introduce two new benchmarks to evaluate the capabilities of Large Language Models in Southeast Asian (SEA) application scenarios.
Outcome: The proposed benchmarks show that they can discern LLM performance on SEA language tasks compared to their translated benchmarks.
GEMv2: Multilingual NLG Benchmarking in a Single Line of Code (2022.emnlp-demos)

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Challenge: Evaluations in machine learning rarely use the latest metrics, datasets, or human evaluation in favor of remaining compatible with prior work.
Approach: They propose to use the Generation, Evaluation, and Metrics Benchmark to integrate new evaluation methods into existing evaluations.
Outcome: The proposed evaluation infrastructure bridges the gap between the advantages of leaderboards and in-depth and evolving evaluations by allowing model developers to benefit from each other's work.
X-Eval: Generalizable Multi-aspect Text Evaluation via Augmented Instruction Tuning with Auxiliary Evaluation Aspects (2024.naacl-long)

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Challenge: X-Eval is a two-stage instruction tuning framework to evaluate text in both seen and unseen aspects customized by end users.
Approach: They introduce a two-stage instruction tuning framework to evaluate text in both seen and unseen aspects customized by end users.
Outcome: The proposed framework improves the model’s ability to follow evaluation instructions and enhances the learning stage to better assess text quality.
EARA: Improving Biomedical Semantic Textual Similarity with Entity-Aligned Attention and Retrieval Augmentation (2023.findings-emnlp)

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Challenge: Existing methods to measure semantic similarity between biomedical texts are inefficient due to too many biomedically-related entities.
Approach: They propose an entity-aligned, attention-based and retrieval-augmented PLM that aligns the same type of fine-grained entity information in each sentence pair with an entity alignment matrix with an auxiliary loss.
Outcome: The proposed model can achieve state-of-the-art on both in-domain and out-of domain datasets.
Why Do Emotions Change? Appraisal-Guided Reasoning for Emotion–Cause Triplet Extraction in Conversations (2026.acl-long)

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Challenge: Existing methods for multi-turn, multi-speaker multimodal affect understanding are difficult to maintain conversation-level consistency under within-speaks' emotion shifts.
Approach: They propose a framework that combines appraisal-guided structured generation with graph-structured reinforcement learning to extract triplets from multi-turn multimodal conversations.
Outcome: The proposed framework outperforms baselines on public MECTEC benchmarks and improves structure-aware metrics on emotion shift coherence and core events.
Chinese Relation Extraction with Multi-Grained Information and External Linguistic Knowledge (P19-1)

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Challenge: Existing methods for Chinese relation extraction suffer from segmentation errors and ambiguity of polysemy.
Approach: They propose a multi-grained lattice framework for Chinese relation extraction . they incorporate word-level information into character sequence inputs to avoid segmentation errors .
Outcome: The proposed model outperforms existing models on three real-world datasets in distinct domains.
Aspect and Sentiment Aware Abstractive Review Summarization (C18-1)

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Challenge: Abstractive summarization is a task that generates short and concise summaries of user generated reviews.
Approach: They propose an interactive attention mechanism to learn the representations of context and aspect words within reviews, acted as an encoder.
Outcome: The proposed model achieves impressive results compared to other strong competitors on a real-life dataset.
Evaluating Moral Beliefs across LLMs through a Pluralistic Framework (2024.findings-emnlp)

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Challenge: Proper moral beliefs are fundamental for language models, yet assessing these beliefs poses a significant challenge.
Approach: They propose a framework to evaluate the moral beliefs of four large language models . they use a dataset containing 472 moral choice scenarios in Chinese .
Outcome: The proposed framework evaluates the moral beliefs of four large language models.
TARN-VIST: Topic Aware Reinforcement Network for Visual Storytelling (2024.lrec-main)

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Challenge: Existing methods for visual storytelling ignore latent topic information.
Approach: They propose a topic-aware reinforcement network for VIsual StoryTelling that takes topic information into account to generate a coherent story.
Outcome: The proposed method outperforms most of the competing models across multiple evaluation metrics.
Cross-modal Contrastive Attention Model for Medical Report Generation (2022.coling-1)

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Challenge: Existing methods for medical report generation are unable to capture useful information from historical cases.
Approach: They propose a model that captures both visual and semantic information from similar cases.
Outcome: The proposed model outperforms the state-of-the-art models on almost all metrics on IU X-Ray and MIMIC-CXR benchmarks.
Linguistic Rules-Based Corpus Generation for Native Chinese Grammatical Error Correction (2022.findings-emnlp)

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Challenge: Chinese Grammatical Error Correction (CGEC) is a challenging NLP task and a common application in human daily life.
Approach: They propose a linguistic rules-based approach to construct large-scale CGEC training corpora with automatically generated grammatical errors.
Outcome: The proposed method improves performance of existing CGEC models and the benchmark is excellent resource for further development.
XGLUE: A New Benchmark Dataset for Cross-lingual Pre-training, Understanding and Generation (2020.emnlp-main)

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Challenge: XGLUE provides a benchmark dataset to train large-scale cross-lingual pre-trained models . XCLUE provides 11 diversified tasks that cover both understanding and generation scenarios .
Approach: They introduce a new benchmark dataset to train large-scale cross-lingual pre-trained models using multilingual and bilingual corpora.
Outcome: The proposed dataset is labeled in English and includes only natural language understanding tasks.
Prompt Optimization for Relation Extraction using Reinforcement Learning (2026.findings-acl)

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Challenge: Existing prompt-based methods rely heavily on large-scale annotated datasets limiting their applicability in domain-specific and low-resource scenarios.
Approach: They propose a reinforcement learning-based automated prompt optimization framework for domain relation extraction that optimizes prompt quality through interaction with a black-box LLM.
Outcome: The proposed framework outperforms existing prompt-based methods and supervised baselines on multiple extraction datasets across medical, financial, legal, and news domains.
Attention Basin: Why Contextual Position Matters in Large Language Models (2026.acl-long)

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Challenge: Large Language Models (LLMs) are sensitive to the contextual position of information in input.
Approach: They introduce Attention-Driven Reranking (AttnRank) which estimates a model’s intrinsic positional attention preferences using a small calibration set and reorders retrieved documents or few-shot examples to align the most salient content with these high-attention positions.
Outcome: Experiments on multi-hop QA and few-shot in-context learning tasks show that AttnRank achieves substantial improvements across 10 large language models of varying architectures and scales, without modifying model parameters or training procedures.
Think and Recall: Layer-Level Prompting for Lifelong Model Editing (2025.emnlp-main)

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Challenge: Existing methods for lifelong model editing suffer from limitations in usability, such as requiring additional training corpora or lacking support for reversible and detachable edits.
Approach: They propose a plug-and-play method for knowledge retrieval and storage, i.e., Layer-Level Prompting, which enables seamless and efficient lifelong model editing.
Outcome: The proposed method outperforms existing methods on question answering and hallucination benchmarks across different LLMs.
Reliability-aware Dynamic Feature Composition for Name Tagging (P19-1)

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Challenge: Word embeddings are used to encode semantic information, but their quality is not consistent across the vocabulary due to the long-tail distribution of word frequency.
Approach: They propose a reliability-aware name tagging model that uses word frequency to indicate word quality . they propose to use word frequency-based reliability signals to dynamically select and compose features .
Outcome: The proposed model outperforms the baseline model on OntoNotes 5.0 and up to 5% gain on cross-genre data sets.
ChartThinker: A Contextual Chain-of-Thought Approach to Optimized Chart Summarization (2024.lrec-main)

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Challenge: Existing methods for chart summarization lack visual-language matching and reasoning ability.
Approach: They propose a method which synthesizes deep analysis based on chains of thought and strategies of context retrieval to improve the logical coherence and accuracy of the generated summaries.
Outcome: The proposed method outperforms 8 state-of-the-art models over 7 evaluation metrics and can significantly reduce time and cognitive resources required.
Graph Counselor: Adaptive Graph Exploration via Multi-Agent Synergy to Enhance LLM Reasoning (2025.acl-long)

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Challenge: Existing methods for enhancing LLM reliability suffer from inefficient information aggregation and rigid reasoning schemes.
Approach: They propose a method that explicitly models external knowledge integration capabilities by explicitly modeling knowledge relationships.
Outcome: The proposed method outperforms existing methods in multiple graph reasoning tasks.
Multi-Agent Procedural Graph Extraction with Structural and Logical Refinement (2026.findings-eacl)

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Challenge: Recent advances in large language models (LLMs) show potential for graph extraction, but often yield ill-formed structures or misinterpret logical constructs such as gateways.
Approach: They propose a framework that treats procedural graph extraction as a multi-round reasoning process with structural and logical refinement agents.
Outcome: The proposed framework achieves significant improvements in structural correctness and logical consistency over strong baselines.
RanLoRA: Residual-aware Nonlinear Low-Rank Adaptation (2026.findings-acl)

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Challenge: Low-Rank Adaptation (LoRA) relying on linear low-rank projections restricts adaptation to linear subspaces, limiting flexibility on complex downstream tasks.
Approach: They propose a nonlinear low-rank Adaptation approach that leverages pretrained weights to decompose them into principal components that are kept frozen and residual components that can be used for task-specific adaptation.
Outcome: The proposed approach outperforms vanilla LoRA and representative variants on commonsense reasoning, image classification, and mathematical reasoning tasks.
Metaphor Detection via Linguistics Enhanced Siamese Network (2022.coling-1)

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Challenge: Empirical results indicate that MisNet achieves competitive performance on several datasets.
Approach: They propose a model that converts linguistic rules into semantic matching tasks.
Outcome: Empirical results show that MisNet achieves competitive performance on several datasets.
DuQM: A Chinese Dataset of Linguistically Perturbed Natural Questions for Evaluating the Robustness of Question Matching Models (2022.emnlp-main)

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Challenge: a comprehensive evaluation of QM models should be conducted on natural texts, not on artificial adversarial examples . ral models are often not robust to adversarials, which means they predict unexpected outputs .
Approach: They use a Chinese dataset to evaluate the robustness of QM models . they show that the effect of artificial adversarial examples does not work on natural texts .
Outcome: The proposed model is more robust than other models on natural questions with 32 linguistic perturbations.
Fusion Makes Perfection: An Efficient Multi-Grained Matching Approach for Zero-Shot Relation Extraction (2024.naacl-short)

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Challenge: Existing methods to extract unseen relations require laborious manual annotation . a new approach uses fine-grained matching to reduce manual annotation cost .
Approach: They propose an efficient multi-grained matching approach that uses virtual entity matching to reduce manual annotation cost.
Outcome: The proposed approach outperforms the state-of-the-art methods and achieves inference efficiency and accuracy in zero-shot relation extraction tasks.
Entropy-Aware Reshaping of Reinforcement Signals for Multi-Answer Reasoning (2026.findings-acl)

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Challenge: Reinforcement learning with verifiable rewards (RLVR) is a standard post-training paradigm for large language models.
Approach: They propose a framework that reshapes how learning signals are normalized and aggregated.
Outcome: Experiments on MCTACO and MMLU-Multi show that the proposed framework improves accuracy, training stability and cross-dataset transfer performance.
Towards Real-world Scenario: Imbalanced New Intent Discovery (2024.acl-long)

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Challenge: Existing studies focus on detecting known and previously undefined categories of user intent . skewed and long-tailed distributions often encountered in open-world scenarios .
Approach: They propose to use imbalanced new intent discovery task to identify familiar and novel intent categories within long-tailed distributions.
Outcome: The proposed model outperforms the existing benchmark on three datasets to simulate the real-world long-tail distributions.
WebCoderBench: Benchmarking Web Application Generation with Comprehensive and Interpretable Evaluation Metrics (2026.acl-long)

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Challenge: Web applications (web apps) are a key arena for large language models to demonstrate their code generation capabilities and commercial potential.
Approach: a new benchmark for large language models (LLMs) is designed to provide real-world user requirements and generalizable evaluation metrics.
Outcome: a new benchmark for large language models (LLMs) provides a real-world, generalizable, and interpretable evaluation score . the benchmark measures user requirements, expression styles and human-preference-aligned weights . a web application can be used to demonstrate its commercial potential, authors say .
MIND: A Large-scale Dataset for News Recommendation (2020.acl-main)

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Challenge: Personalized news recommendation is an important technique for personalized news service.
Approach: They propose to build a large-scale news recommendation dataset from Microsoft News . they demonstrate that news recommendation relies on the quality of news content understanding .
Outcome: The proposed dataset contains 1 million users and more than 160k English news articles, each of which has rich textual content such as title, abstract and body.
GRPO-CARE: Consistency-Aware Reinforcement Learning for Multimodal Reasoning (2026.findings-acl)

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Challenge: Recent reinforcement learning approaches have advanced reasoning in Large Language Models (LLMs), yet their adaptation to multimodal LLMs remains underexplored.
Approach: They propose a reinforcement learning framework that eliminates KL penalties and rewards consistency . they propose GRPO-CARE, which outperforms standard GR PO, with a base reward for accuracy and an adaptive bonus for consistency.
Outcome: The proposed framework outperforms standard GRPO on the most difficult evaluation level and reasoning consistency test benchmarks.
SolEval: Benchmarking Large Language Models for Repository-level Solidity Smart Contract Generation (2025.emnlp-main)

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Challenge: Existing methods focus on Python and Java, neglecting Solidity, the programming language for Ethereum smart contracts.
Approach: They construct a repository-level benchmark for Solidity to evaluate the performance of LLMs on Ethereum.
Outcome: The proposed benchmarks show that the best performing LLM achieves only 26.29% Pass@10, highlighting room for improvement in Solidity code generation.
CompTab: A Comprehensive Benchmark for Real-World TableQA with Complex Reasoning and Irregular Tables (2026.acl-long)

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Challenge: Existing benchmarks focus on well-structured tables and fail to reflect irregular structures and complex reasoning commonly encountered in real-world scenarios.
Approach: They propose a benchmark to evaluate TableQA under complex reasoning and irregular table conditions.
Outcome: The proposed framework improves generalization and realism of large language models under complex and irregular table conditions.
Equal Truth: Rumor Detection with Invariant Group Fairness (2025.findings-emnlp)

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Challenge: Existing rumor detection methods rarely consider fairness issues inherent in the model . this can lead to biased predictions across stakeholder groups, undermining their detection effectiveness .
Approach: They propose a framework to address fairness issues inherent in rumor detection models . they perform unsupervised partitioning to dynamically identify potential unfair data patterns . then, they apply invariant learning to these partitions to extract fair and informative feature representations .
Outcome: The proposed method outperforms strong baselines regarding detection and fairness performance . it also shows robust performance on out-of-distribution samples .
CFinBench: A Comprehensive Chinese Financial Benchmark for Large Language Models (2025.naacl-long)

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Challenge: Large language models (LLMs) have achieved remarkable performance on various NLP tasks, yet their potential in more challenging task like finance, has not been fully explored.
Approach: They propose a benchmark to assess the financial knowledge of large language models (LLMs) in China.
Outcome: The proposed benchmark is the most comprehensive evaluation benchmark to date for LLMs in finance.
Adversarial Multi-task Learning for End-to-end Metaphor Detection (2023.findings-acl)

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Challenge: Existing methods to learn basic sense discrimination (BSD) are limited in training data.
Approach: They propose a multi-task learning framework to transfer MD knowledge to basic sense discrimination using word sense disambiguation.
Outcome: The proposed framework can mitigate the data scarcity problem in metaphor detection.
Representation Alignment and Adversarial Networks for Cross-lingual Dependency Parsing (2024.findings-emnlp)

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Challenge: Pre-trained language models have improved dependency parsing accuracy in resource-rich languages . however, the accuracy drops sharply when the model is transferred to low-resource language .
Approach: They propose a representation alignment and adversarial model to filter out useful knowledge from rich-resource language and ignore useless ones.
Outcome: The proposed model outperforms baseline models on the benchmark datasets by 1.37 LAS and 1.34 UAS.
Exploring the Hidden Reasoning Process of Large Language Models by Misleading Them (2025.findings-emnlp)

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Challenge: Existing large language models can perform abstract reasoning tasks but are they actually engaging in rule-based reasoning beyond mere memorization?
Approach: They propose a method to examine whether large language models perform abstract reasoning . they fine-tune the model to learn those contradictory rules and assess its generalization ability .
Outcome: The proposed approach examines whether large language models perform abstract reasoning by altering their original understanding of fundamental rules.
DSRM: Boost Textual Adversarial Training with Distribution Shift Risk Minimization (2023.acl-long)

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Challenge: Existing adversarial training methods require multi-step gradient ascents or word substitutions to obtain adversarials, which impairs the effectiveness of adversariarial training.
Approach: They propose a procedure for instead adversarial training with only clean data that estimates the adversarials loss by perturbing the input data’s probability distribution rather than their embeddings.
Outcome: The proposed procedure reduces time consumption by up to 70% compared to current best-performing adversarial training methods.
Relation Extraction with Temporal Reasoning Based on Memory Augmented Distant Supervision (N19-1)

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Challenge: Distant supervision is an important paradigm for automatically extracting relations . but the examples collected can be noisy and pose significant challenge for labeling .
Approach: They propose a method to predict whether two entities participate in a relation at a given time spot.
Outcome: The proposed model performs better in WIKI-TIME and NYT-10 datasets compared with the best existing models . the proposed model is based on a dataset with a valid period of a certain relation of two entities in the knowledge base .
Modularized Syntactic Neural Networks for Sentence Classification (2020.emnlp-main)

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Challenge: Existing models for sentence classification use local information of sub-trees, but new models use global context .
Approach: They propose a tree-parallel mini-batch strategy for efficient training and predicting sentences . they propose to use syntax category labels to model sub-trees .
Outcome: The proposed model outperforms state-of-the-art tree-based methods on the sentence classification task.
Browsing Like Human: A Multimodal Web Agent with Experiential Fast-and-Slow Thinking (2025.acl-long)

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Challenge: Existing web agents lack visual perception, planning, and memory abilities, but their reasoning process is deviate from human cognition.
Approach: They propose a multimodal web agent framework that emulates human planning process to decompose complex user instructions.
Outcome: The proposed framework emulates human planning process to decompose complex user instructions.
ECoK: Emotional Commonsense Knowledge Graph for Mining Emotional Gold (2024.findings-acl)

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Challenge: Existing knowledge graphs focus on the representation and reasoning of general factual knowledge, while there are significant deficiencies in the understanding and reasoning for emotional knowledge.
Approach: They propose a commonsense knowledge graph that can be used to represent emotional knowledge by combining theories from psychology, cognitive science, and linguistics.
Outcome: The proposed model surpasses GPT-4-Turbo in the emotion-related tasks.

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