Papers by Yi Ying

15 papers
A Deep Learning-Based System for PharmaCoNER (D19-57)

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Challenge: Efficient access to mentions of clinical entities is very important for using clinical text.
Approach: They developed a pipeline system based on deep learning methods for this shared task . it achieves a micro-average F1-score of 0.9105 on track 1 and a mini-average LSTM score of 0.8391 on track 2 .
Outcome: The proposed system achieves a micro-average F1-score of 0.9105 on track 1 and a mini-average score of 0.8391 on track 2.
Detoxifying Large Language Models via the Diversity of Toxic Samples (2025.emnlp-main)

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Challenge: Existing methods for analyzing and utilizing toxic samples are limited . current methods fail to fully harness their potential .
Approach: They propose a diverse detoxification framework that leverages toxic samples' diversity . they propose MPSG strategy and SC-DPO approach to elicit personalized toxic responses .
Outcome: The proposed framework could be used to optimize large language models for user safety . it incorporates two components: MPSG strategy and SC-DPO approach .
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.
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.
HetGCoT: Heterogeneous Graph-Enhanced Chain-of-Thought LLM Reasoning for Academic Question Answering (2025.findings-emnlp)

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Challenge: graph neural networks capture structured graph information, but lack integration at the reasoning level.
Approach: They propose a framework that leverages graph structural information to reason interpretable academic QA results.
Outcome: The proposed framework outperforms sota baselines on OpenAlex and DBLP datasets.
RESIN: A Dockerized Schema-Guided Cross-document Cross-lingual Cross-media Information Extraction and Event Tracking System (2021.naacl-demos)

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Challenge: We present a new information extraction system that can construct temporal event graphs from news documents.
Approach: They propose a temporal event graph extraction system that can extract news documents . they extend the system from sentence-level event extraction to cross-document cross-media event extraction .
Outcome: The proposed system can extract temporal event graphs from news documents in multiple languages and multiple data modalities.
Too Good to be Bad: On the Failure of LLMs to Role-Play Villains (2026.findings-acl)

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Challenge: Large Language Models (LLMs) are increasingly tasked with creative generation, but their ability to portray non-prosocial, antagonistic personas remains largely unexamined.
Approach: They propose a moral alignment benchmark to test the safety of large language models . they find that models struggle with traits directly antithetical to safety principles .
Outcome: The proposed model fails to accurately portray morally ambiguous or villainous characters . the model fails most with traits directly antithetical to safety principles .
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 .
Punctuation-Steered Representation Fine-Tuning (2026.acl-short)

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Challenge: Existing methods for parameter-efficient fine-tuning (PeFT) are limited due to their prohibitive size and computational demands.
Approach: They propose a method that fine-tunes punctuation representations to achieve performance improvements.
Outcome: The proposed method improves performance by altering the representation space alone . but it results in suboptimal performance due to the effects of the method on the output .
EDU-CIRCUIT-HW: Evaluating Multimodal Large Language Models on Real-World University-Level STEM Student Handwritten Solutions (2026.findings-acl)

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Challenge: Multimodal Large Language Models (MLLMs) are a promising tool for traditional education but lack authentic and domain-specific benchmarks to accurately interpret student handwritten solutions.
Approach: They propose to use MLLMs to interpret unconstrained STEM student handwritten solutions with intertwined mathematical formulas, diagrams, and textual reasoning to bridge this gap.
Outcome: The proposed model can detect and rectify recognition errors with minimal human intervention on unseen student solutions.
RENOVI: A Benchmark Towards Remediating Norm Violations in Socio-Cultural Conversations (2024.findings-naacl)

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Challenge: Norm violations occur when individuals fail to conform to culturally accepted behaviors, which may lead to potential conflicts.
Approach: They propose to use a large corpus of 9,258 multi-turn dialogues annotated with social norms to equip AI systems with a remediation ability.
Outcome: The proposed system can understand and remediate norm violations step by step.
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.
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.
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.
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 .

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