Papers by Zongyuan Ge

8 papers
HGCLIP: Exploring Vision-Language Models with Graph Representations for Hierarchical Understanding (2025.coling-main)

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Challenge: Object categories are typically organized into a multi-granularity taxonomic hierarchy . traditional uni-modal approaches focus primarily on image features, revealing limitations in complex scenarios.
Approach: They propose a framework that combines vision-language models with a deeper exploitation of the hierarchy.
Outcome: The proposed framework shows significant improvements on 11 diverse visual recognition benchmarks.
MMRC: A Large-Scale Benchmark for Understanding Multimodal Large Language Model in Real-World Conversation (2025.acl-long)

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Challenge: Existing multimodal large language models lack the ability to memorize, recall, and reason in sustained interactions.
Approach: They propose a multimodal real-world conversation benchmark for evaluating open-ended abilities of multimodal large language models.
Outcome: The proposed benchmarks show that the models perform better in open-ended conversations.
Tears or Cheers? Benchmarking LLMs via Culturally Elicited Distinct Affective Responses (2026.acl-long)

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Challenge: Culture is a fundamental determinant of human affective processing and affective perceptions are often limited by declarative knowledge or established societal customs.
Approach: They propose a multimodal benchmark that leverages LLM-generated provisional labels to isolate cross-cultural emotional distinctions.
Outcome: The proposed benchmark captures cross-cultural emotional distinctions and derives reliable ground-truth annotations through human evaluation.
PsychEthicsBench: Evaluating Large Language Models Against Australian Mental Health Ethics (2026.findings-acl)

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Challenge: Mental disorders affect nearly one in seven people worldwide, yet the vast majority do not receive adequate care.
Approach: They propose a framework to evaluate LLMs' ethical knowledge and behavioral responses through multiple-choice and open-ended tasks with fine-grained ethicality annotations.
Outcome: Empirical results across 14 models reveal that refusal rates are poor indicators of ethical behavior, revealing a significant divergence between safety triggers and clinical appropriateness.
WISE: Weak-Supervision-Guided Step-by-Step Explanations for Multimodal LLMs in Image Classification (2025.emnlp-main)

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Challenge: Existing MCoT methods focus on inter-object reasoning, overlooking intra-object understanding crucial for image classification.
Approach: They propose a Weak-supervision-guided Step-by-step Explanation method that reformulates MCoTs under weak supervision into concise, interpretable reasoning chains.
Outcome: The proposed method improves interpretability by 37% and improves classification accuracy.
TAGS: A Test-Time Generalist–Specialist Framework with Retrieval-Augmented Reasoning and Verification (2026.findings-acl)

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Challenge: Existing efforts to improve medical question answering performance follow two directions.
Approach: They propose a framework that combines a generalist with a domain-specific specialist without any model fine-tuning or parameter updates.
Outcome: The proposed framework boosts GPT-4o accuracy by 13.8%, deepseek-R1 by 16.8%, and improves a vanilla 7B model from 14.1% to 23.9%.
CHiRPE: A Step Towards Real-World Clinical NLP with Clinician-Oriented Model Explanations (2026.eacl-short)

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Challenge: Psychotic disorders are a major contributor to the global health burden due to their relatively high mortality risk.
Approach: They propose an NLP pipeline that takes semi-structured clinical interviews to predict psychosis risk and generate novel SHAP explanation formats.
Outcome: The proposed pipeline outperforms baseline models and achieves 90% accuracy across three BERT variants.
Enhancing Interpretable Image Classification Through LLM Agents and Conditional Concept Bottleneck Models (2025.acl-long)

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Challenge: Concept Bottleneck Models (CBMs) map visual representations to a set of humanunderstandable textual concepts, which are then interpreted by a linear combination of these concept scores.
Approach: They propose a dynamic, agent-based approach that adjusts the concept bank in response to environmental feedback, optimizing the number of concepts for sufficiency yet concise coverage.
Outcome: The proposed model improves classification accuracy by 6% and interpretability assessments by 30%.

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