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cs.CL2025

Exploring Generative Process Reward Modeling for Semi-Structured Data: A Case Study of Table Question Answering

Lei Tang, Wei Zhou, Mohsen Mesgar

Process reward models (PRMs) enhance complex reasoning in large language models (LLMs) by evaluating candidate solutions step-by-step and selecting answers based on aggregated step…

cs.CL2025

Table Question Answering in the Era of Large Language Models: A Comprehensive Survey of Tasks, Methods, and Evaluation

Wei Zhou, Bolei Ma, Annemarie Friedrich +1

Table Question Answering (TQA) aims to answer natural language questions about tabular data, often accompanied by additional contexts such as text passages. The task spans diverse…

cs.CL2025

Texts or Images? A Fine-grained Analysis on the Effectiveness of Input Representations and Models for Table Question Answering

Wei Zhou, Mohsen Mesgar, Heike Adel +1

In table question answering (TQA), tables are encoded as either texts or images. Prior work suggests that passing images of tables to multi-modal large language models (MLLMs) perf…

cs.CL2025

p2-TQA: A Process-based Preference Learning Framework for Self-Improving Table Question Answering Models

Wei Zhou, Mohsen Mesgar, Heike Adel +1

Table question answering (TQA) focuses on answering questions based on tabular data. Developing TQA systems targets effective interaction with tabular data for tasks such as cell r…

cs.CL2024

Efficient Multi-Agent Collaboration with Tool Use for Online Planning in Complex Table Question Answering

Wei Zhou, Mohsen Mesgar, Annemarie Friedrich +1

Complex table question answering (TQA) aims to answer questions that require complex reasoning, such as multi-step or multi-category reasoning, over data represented in tabular for…