Zihao Zhang
Author directoryUnverified author pages with similar names: Zihao Zhang
2026
AREAs-Lab: An Interactive Environment for AI-driven Requirement Elicitation for AI Systems
Pengshan Cai | Zihao Zhang | Ting Jin | Chenyang Zhu | Kushal Chawla | Sangwoo Cho | Scott Novotney | Yebowen Hu | Fei Liu | Shi-Xiong Zhang | Sambit Sahu
Findings of the Association for Computational Linguistics: EMNLP 2026
Pengshan Cai | Zihao Zhang | Ting Jin | Chenyang Zhu | Kushal Chawla | Sangwoo Cho | Scott Novotney | Yebowen Hu | Fei Liu | Shi-Xiong Zhang | Sambit Sahu
Findings of the Association for Computational Linguistics: EMNLP 2026
Building effective AI systems increasingly depends on writing high-quality task requirements, yet users often struggle to articulate the constraints, preferences, and edge cases that determine success. This problem is especially acute in AI development, where behavior is shaped not only by human expectations but also by data characteristics. We present AREAs-Lab, an interactive environment for AI-driven Requirement Elicitation for AI systems. In AREAs-Lab, an assistant iteratively refines an initially incomplete requirement by analyzing the underlying dataset and asking targeted clarification questions to uncover the user’s latent intent. To study this setting systematically, we construct a synthetic benchmark grounded in 16 public datasets spanning diverse domains and task types. Each benchmark instance includes a user profile, a complete reference requirement, and an intentionally underspecified version that serves as the assistant’s starting point. We further introduce an automated evaluation pipeline based on an AI-simulated user that reveals hidden information only when appropriately prompted, enabling scalable and reproducible assessment of interactive elicitation quality. AREAs-Lab provides a controlled testbed for studying how AI assistants can transform vague user goals into actionable requirements for AI systems.
MedQA-CS: Objective Structured Clinical Examination (OSCE)-Style Benchmark for Evaluating LLM Clinical Skills
Zonghai Yao | Zihao Zhang | Chaolong Tang | Xingyu Bian | Youxia Zhao | Zhichao Yang | Junda Wang | Huixue Zhou | Won Seok Jang | Feiyun Ouyang | Hong Yu
Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)
Zonghai Yao | Zihao Zhang | Chaolong Tang | Xingyu Bian | Youxia Zhao | Zhichao Yang | Junda Wang | Huixue Zhou | Won Seok Jang | Feiyun Ouyang | Hong Yu
Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)
Artificial intelligence (AI) and large language models (LLMs) in healthcare require advanced clinical skills (CS), yet current benchmarks fail to evaluate these comprehensively. We introduce MedQA-CS, an AI-SCE framework inspired by medical education’s Objective Structured Clinical Examinations (OSCEs), to address this gap. MedQA-CS evaluates LLMs through two instruction-following tasks—LLM-as-medical-student and LLM-as-CS-examiner—designed to reflect real clinical scenarios. Our contributions include developing MedQA-CS, a comprehensive evaluation framework with publicly available data and expert annotations, and providing the quantitative and qualitative assessment of LLMs as reliable judges in CS evaluation. Our experiments show that MedQA-CS is a more challenging benchmark for evaluating clinical skills than traditional multiple-choice QA benchmarks (e.g., MedQA). Combined with existing benchmarks, MedQA-CS enables a more comprehensive evaluation of LLMs’ clinical capabilities for both open- and closed-source LLMs.
2025
PlanGenLLMs: A Modern Survey of LLM Planning Capabilities
Hui Wei | Zihao Zhang | Shenghua He | Tian Xia | Shijia Pan | Fei Liu
Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Hui Wei | Zihao Zhang | Shenghua He | Tian Xia | Shijia Pan | Fei Liu
Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
LLMs have immense potential for generating plans, transforming an initial world state into a desired goal state. A large body of research has explored the use of LLMs for various planning tasks, from web navigation to travel planning and database querying. However, many of these systems are tailored to specific problems, making it challenging to compare them or determine the best approach for new tasks. There is also a lack of clear and consistent evaluation criteria. Our survey aims to offer a comprehensive overview of current LLM planners to fill this gap. It builds on foundational work by Kartam and Wilkins (1990) and examines six key performance criteria: completeness, executability, optimality, representation, generalization, and efficiency. For each, we provide a thorough analysis of representative works and highlight their strengths and weaknesses. Our paper also identifies crucial future directions, making it a valuable resource for both practitioners and newcomers interested in leveraging LLM planning to support agentic workflows.
2024
LocalTweets to LocalHealth: A Mental Health Surveillance Framework Based on Twitter Data
Vijeta Deshpande | Minhwa Lee | Zonghai Yao | Zihao Zhang | Jason Brian Gibbons | Hong Yu
Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024)
Vijeta Deshpande | Minhwa Lee | Zonghai Yao | Zihao Zhang | Jason Brian Gibbons | Hong Yu
Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024)
Prior research on Twitter (now X) data has provided positive evidence of its utility in developing supplementary health surveillance systems. In this study, we present a new framework to surveil public health, focusing on mental health (MH) outcomes. We hypothesize that locally posted tweets are indicative of local MH outcomes and collect tweets posted from 765 neighborhoods (census block groups) in the USA. We pair these tweets from each neighborhood with the corresponding MH outcome reported by the Center for Disease Control (CDC) to create a benchmark dataset, LocalTweets. With LocalTweets, we present the first population-level evaluation task for Twitter-based MH surveillance systems. We then develop an efficient and effective method, LocalHealth, for predicting MH outcomes based on LocalTweets. When used with GPT3.5, LocalHealth achieves the highest F1-score and accuracy of 0.7429 and 79.78%, respectively, a 59% improvement in F1-score over the GPT3.5 in zero-shot setting. We also utilize LocalHealth to extrapolate CDC’s estimates to proxy unreported neighborhoods, achieving an F1-score of 0.7291. Our work suggests that Twitter data can be effectively leveraged to simulate neighborhood-level MH outcomes.
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Co-authors
- Fei Liu 2
- Zonghai Yao 2
- Xingyu Bian 1
- Pengshan Cai 1
- Kushal Chawla 1
- Sangwoo Cho 1
- Vijeta Deshpande 1
- Jason Brian Gibbons 1
- Shenghua He 1
- Yebowen Hu 1
- Won Seok Jang 1
- Ting Jin 1
- Minhwa Lee 1
- Scott Novotney 1
- Feiyun Ouyang 1
- Shijia Pan 1
- Sambit Sahu 1
- Chaolong Tang 1
- Junda Wang 1
- Hui Wei 1
- Tian Xia 1
- Zhichao Yang 1
- Hong Yu 1
- Hong Yu 1
- Shi-Xiong Zhang 1
- Youxia Zhao 1
- Huixue Zhou 1
- Chenyang Zhu 1