Papers by Yizhi Li

16 papers
HERB: Measuring Hierarchical Regional Bias in Pre-trained Language Models (2022.findings-aacl)

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Challenge: Existing methods do not examine social groups categorised by geographical information, leaving the region-related biases in pre-trained LMs unexplored.
Approach: They propose a hierarchical regional bias evaluation method to quantify regional bias in pre-trained language models.
Outcome: The proposed method evaluates regional bias with regard to comprehensive topics and measures potential regional bias that can be propagated to downstream tasks.
LoopCoder: Scaling Code Intelligence via Looped Language Models (2026.findings-acl)

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Challenge: Large language models have mastered syntax-level code generation, but complex algorithmic reasoning remains a challenge.
Approach: They propose a recurrent inductive bias that aligns with the recursive nature of programming logic.
Outcome: The proposed model achieves comparable performance to standard dense models with more parameters.
DocMMIR: A Framework for Document Multi-modal Information Retrieval (2025.findings-emnlp)

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Challenge: Existing multi-modal information retrieval models lack a comprehensive exploration of document-level retrieval . existing models suffer from the absence of cross-domain datasets at this granularity.
Approach: They propose a multi-modal document retrieval framework to unify diverse document formats and domains with a comprehensive retrieval scenario.
Outcome: The proposed framework improves document retrieval performance on a large multimodal dataset.
Which Side Are You On? A Multi-task Dataset for End-to-End Argument Summarisation and Evaluation (2024.findings-acl)

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Challenge: Recent advances in large language models (LLMs) have made it difficult to build an automated debate system that helps people to synthesise persuasive arguments.
Approach: They propose to use an argument mining dataset to capture the end-to-end process of preparing an argumentative essay for a debate.
Outcome: The proposed dataset shows that it performs better on individual tasks than on human-centred evaluations.
MAmmoTH-VL: Eliciting Multimodal Reasoning with Instruction Tuning at Scale (2025.acl-long)

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Challenge: Current instruction-tuning datasets focus on simplistic visual question answering tasks, and provide phrase-level answers without any intermediate rationales.
Approach: They propose to use open-source multimodal large language models to train MLLMs on a dataset with 12M instruction-response pairs to elicit CoT reasoning.
Outcome: The proposed model achieves state-of-the-art performance on benchmarks such as MathVerse, MMMU-Pro, and MuirBench, and gains improvements of up to 4% on non-reasoning-based benchmarks.
CIF-Bench: A Chinese Instruction-Following Benchmark for Evaluating the Generalizability of Large Language Models (2024.findings-acl)

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Challenge: a recent study shows that large language models have limited generalization in low-resource languages like Chinese.
Approach: They propose to evaluate the zero-shot generalizability of large language models to the Chinese language . they release only half of the dataset publicly, with the remainder kept private .
Outcome: The Chinese Instruction-Following Benchmark evaluates the generalizability of LLMs to the Chinese language.
Length is a Curse and a Blessing for Document-level Semantics (2023.emnlp-main)

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Challenge: In recent years, contrastive learning (CL) has been extensively utilized to recover sentence and document-level encoding capability from pre-trained language models.
Approach: They propose a document-based contrastive learning framework that is length-agnostic self-reference based on document length.
Outcome: The proposed framework achieves state-of-the-art on the standard information retrieval benchmark.
ChatMusician: Understanding and Generating Music Intrinsically with LLM (2024.findings-acl)

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Challenge: Despite LLMs' impressive capabilities in musical knowledge, music reasoning remains an unsolved task.
Approach: They propose an open-source large language model (LLM) that integrates intrinsic musical abilities into LLaMA2 and GPT-3.5.
Outcome: The proposed model can understand and generate music with a pure text tokenizer without external multi-modal neural structures or tokenizers.
TranSHER: Translating Knowledge Graph Embedding with Hyper-Ellipsoidal Restriction (2022.emnlp-main)

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Challenge: Existing knowledge graph embedding methods restrict entities on hyper-ellipsoid surfaces, resulting in suboptimal knowledge graph completion.
Approach: They propose a score function that leverages relation-specific translations between head and tail entities to relax constraints on hyper-ellipsoid surfaces.
Outcome: The proposed method achieves state-of-the-art performance on link prediction and generalizes well to datasets in different domains and scales.
MIO: A Foundation Model on Multimodal Tokens (2025.emnlp-main)

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Challenge: Existing models lack multimodal understanding capabilities, resulting in closed-source model that does not support multimodal interleaved sequences.
Approach: They propose a foundation model built on multimodal tokens capable of understanding and generating speech, text, images, and videos in an end-to-end, autoregressive manner.
Outcome: The proposed model is able to understand speech, text, images, and videos in an end-to-end, autoregressive manner.
HiRAS: A Hierarchical Multi-Agent Framework for Paper-to-Code Generation and Execution (2026.findings-acl)

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Challenge: Existing approaches to automate computational research use fixed sequential agent pipelines with weak global coordination, which limits their robustness and overall performance.
Approach: They propose a hierarchical multi-agent framework for end-to-end paper reproduction that employs supervisory manager agents to coordinate specialised agents across fine-grained stages.
Outcome: The proposed framework improves the paper2code benchmark and significantly reduces hallucination in the evaluation.
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.
MMRA: A Benchmark for Evaluating Multi-Granularity and Multi-Image Relational Association Capabilities in Large Visual Language Models (2026.findings-eacl)

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Challenge: Current multimodal benchmarks focus on facts within individual images, but neglect associative relations among multiple images.
Approach: They propose a multi-image relational association task and a MMRA benchmark to evaluate LVLMs.
Outcome: The proposed benchmarks show that entity-level multi-image perception tasks pose greater challenges than image-level tasks.
Relation Classification via Bidirectional Prompt Learning with Data Augmentation by Large Language Model (2024.lrec-main)

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Challenge: Recent studies investigate Relation Extraction task from two different aspects.
Approach: They propose to use Large Language Model (LLM) to do data augmentation and propose a bidirectional prompt template for prompt learning.
Outcome: The proposed model outperforms the state-of-the-art on four datasets and outperformed existing methods on TACREV, RETACRED and Semeval.
CoTJudger: A Graph-Driven Framework for Automatic Evaluation of Chain-of-Thought Efficiency and Redundancy in LRMs (2026.findings-acl)

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Challenge: Existing evaluations emphasize final accuracy or coarse token counts, and lack automated tools to separate essential logic from structural redundancy.
Approach: They propose a graph-driven framework that quantifies reasoning efficiency by converting free-form CoTs into directed dependency graphs and extracting the Shortest Effective Path needed to reach a correct solution.
Outcome: Evaluating 21 LRMs, the proposed framework quantifies reasoning efficiency by converting free-form CoTs into directed dependency graphs and extracting the Shortest Effective Path (SEP) needed to reach a correct solution.
LIME: Less Is More for MLLM Evaluation (2025.findings-acl)

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Challenge: Existing MLLM benchmarks and unified evaluation frameworks cannot accurately and efficiently reflect the ability of MLMLs.
Approach: They propose a semi-automated benchmark curated using a pipeline that filters out uninformative samples and eliminates answer leakage by focusing on tasks that require image-based understanding.
Outcome: The proposed benchmark reduces the number of samples by 76% and evaluation time by 77% while it can more effectively distinguish different models’ abilities.

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