Papers by Zirui Zhou

9 papers
KIA: Knowledge-Guided Implicit Vision-Language Alignment for Chest X-Ray Report Generation (2025.coling-main)

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Challenge: Existing reports on medical images and reports lack fine-grained cross-modal interaction, leading to insufficient understanding of detailed information.
Approach: They propose a framework for establishing cross-modal semantic alignment in radiology report pairs using knowledge-guided implicit vision-language alignment.
Outcome: KIA improves understanding of medical images and reports by incorporating medical knowledge to enhance pathological observation and anatomical landm.
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.
Towards Human-aligned Evaluation for Linear Programming Word Problems (2024.lrec-main)

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Challenge: Existing evaluation methodologies for MWPs diverge from human judgment and face challenges in recognizing mathematically equivalent answers.
Approach: They propose an evaluation metric rooted in graph edit distance that features benefits such as permutation invariance and more accurate program equivalence identification.
Outcome: The proposed evaluation metric features benefits such as permutation invariance and more accurate program equivalence identification.
AssistedDS: Benchmarking How External Domain Knowledge Assists LLMs in Automated Data Science (2025.findings-emnlp)

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Challenge: Large language models (LLMs) have advanced the automation of data science workflows, yet it remains unclear whether they can critically leverage external domain knowledge as human data scientists do in practice.
Approach: They propose a benchmark to evaluate how large language models handle external domain knowledge in tabular prediction tasks.
Outcome: The proposed model evaluates whether it can critically leverage external domain knowledge as human data scientists do in practice.
Augmenting Operations Research with Auto-Formulation of Optimization Models From Problem Descriptions (2022.emnlp-industry)

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Challenge: Existing systems for operations research use NLP to suggest formulations of optimization problems.
Approach: They propose an augmented intelligence system that can be used to simplify and enhance the modeling experience for operations research.
Outcome: The proposed system validates and edits the proposed formulations with a dataset of linear programming problems drawn from various application domains.
Do MLLMs Understand Pointing? Benchmarking and Enhancing Referential Reasoning in Egocentric Vision (2026.findings-acl)

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Challenge: Egocentric AI agents rely on pointing to resolve referential ambiguities in natural language commands.
Approach: They propose a question-answering benchmark to evaluate and enhance pointing reasoning in egocentric views.
Outcome: The proposed benchmark evaluates and enhances pointing reasoning in egocentric views.
Re3: Relevance & Recency Retrieval for Mitigating Temporal Hallucination (2026.acl-long)

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Challenge: Existing retrievers suffer from temporal-semantic misalignment and outdated-document interference . Existing frameworks suffer from both temporal validity and outdated factual versions .
Approach: They propose a framework that mitigates temporal hallucinations by embedding heterogeneous temporal signals into the semantic space to ensure retrieval fidelity.
Outcome: Experiments show that Re3 outperforms baselines by 9.7% in generation accuracy . the framework outperformed strongest baselines on challenging dynamic tasks .
QUEST: Efficient Extreme Multi-Label Text Classification with Large Language Models on Commodity Hardware (2024.findings-emnlp)

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Challenge: Extreme multi-label text classification (EMTC) involves predicting multiple labels from a vast pool of candidates based on a user’s textual query.
Approach: They propose a Quantized and Efficient Learning with Sampling Technique that uses a hash sampling module to reduce the data volume to one-fourth of its original size.
Outcome: Extensive experiments show that QUEST outperforms existing methods while requiring fewer computational resources.

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