activity
20182026
most citedDoes RAG Introduce Unfairness in LLMs? Evaluating Fairness in Retrieval-Augmented Generation Systems

2 citations · 6 across the 17 of their papers we have counts for

collaborators

17 papers

cs.LG2026

HindSearch: Trajectory-Level Hindsight Critique for Search-Augmented Reinforcement Learning

Haowei Liu, Jiamian Wang, Hsin-Tai Wu +2

Search-augmented LM agents are typically trained with a binary exact-match reward, which throws away most of what a failed trajectory tells us about why it failed. We introduce Hin…

cs.LG2026

ReliableTableQA:How Much Supervision Does Reliability Annotation Need?

Huei-Chung Hu, Hsin-Tai Wu, Koyo Kobayashi

We introduce ReliableTableQA, a framework for training an LLM to annotate the statistical reliability of tabular QA results, not whether the query is answerable, but whether the co…

cs.CL2025

BookAsSumQA: An Evaluation Framework for Aspect-Based Book Summarization via Question Answering

Ryuhei Miyazato, Ting-Ruen Wei, Xuyang Wu +2

Aspect-based summarization aims to generate summaries that highlight specific aspects of a text, enabling more personalized and targeted summaries. However, its application to book…

cs.AI2025

Enhancing Japanese Large Language Models with Reasoning Vectors

Carolina Minami Oguchi, Leo Wei, Koyo Kobayashi +2

Post-training methods have improved the performance and enhanced the reasoning capability for mainstream large language models (LLMs), but the same is challenging for Japanese LLMs…

cs.CL2025★ 1 cited

Does Reasoning Introduce Bias? A Study of Social Bias Evaluation and Mitigation in LLM Reasoning

Xuyang Wu, Jinming Nian, Ting-Ruen Wei +3

Recent advances in large language models (LLMs) have enabled automatic generation of chain-of-thought (CoT) reasoning, leading to strong performance on tasks such as math and code.…

cs.CV2024

CLERF: Contrastive LEaRning for Full Range Head Pose Estimation

Ting-Ruen Wei, Haowei Liu, Huei-Chung Hu +3

We introduce a novel framework for representation learning in head pose estimation (HPE). Previously such a scheme was difficult due to head pose data sparsity, making triplet samp…

cs.IR2024

RaCT: Ranking-aware Chain-of-Thought Optimization for LLMs

Haowei Liu, Xuyang Wu, Guohao Sun +2

In information retrieval, large language models (LLMs) have demonstrated remarkable potential in text reranking tasks by leveraging their sophisticated natural language understandi…

cs.CL2024★ 2 cited

Does RAG Introduce Unfairness in LLMs? Evaluating Fairness in Retrieval-Augmented Generation Systems

Xuyang Wu, Shuowei Li, Hsin-Tai Wu +2

Retrieval-Augmented Generation (RAG) has recently gained significant attention for its enhanced ability to integrate external knowledge sources into open-domain question answering…

cs.CV2024

Full-range Head Pose Geometric Data Augmentations

Huei-Chung Hu, Xuyang Wu, Haowei Liu +2

Many head pose estimation (HPE) methods promise the ability to create full-range datasets, theoretically allowing the estimation of the rotation and positioning of the head from va…

cs.CL2024

Table Transformers for Imputing Textual Attributes

Ting-Ruen Wei, Yuan Wang, Yoshitaka Inoue +2

Missing data in tabular dataset is a common issue as the performance of downstream tasks usually depends on the completeness of the training dataset. Previous missing data imputati…

cs.CL2024★ 1 cited

Passage-specific Prompt Tuning for Passage Reranking in Question Answering with Large Language Models

Xuyang Wu, Zhiyuan Peng, Krishna Sravanthi Rajanala Sai +2

Effective passage retrieval and reranking methods have been widely utilized to identify suitable candidates in open-domain question answering tasks, recent studies have resorted to…

cs.CL2024

Evaluating Fairness in Large Vision-Language Models Across Diverse Demographic Attributes and Prompts

Xuyang Wu, Yuan Wang, Hsin-Tai Wu +2

Large vision-language models (LVLMs) have recently achieved significant progress, demonstrating strong capabilities in open-world visual understanding. However, it is not yet clear…

cs.CV2024★ 1 cited

HPE-CogVLM: Advancing Vision Language Models with a Head Pose Grounding Task

Yu Tian, Tianqi Shao, Tsukasa Demizu +2

Head pose estimation (HPE) requires a sophisticated understanding of 3D spatial relationships to generate precise yaw, pitch, and roll angles. Previous HPE models, primarily CNN-ba…

cs.IR2024

Do Large Language Models Rank Fairly? An Empirical Study on the Fairness of LLMs as Rankers

Yuan Wang, Xuyang Wu, Hsin-Tai Wu +2

The integration of Large Language Models (LLMs) in information retrieval has raised a critical reevaluation of fairness in the text-ranking models. LLMs, such as GPT models and Lla…

cs.CV2024★ 1 cited

Mathematical Foundation and Corrections for Full Range Head Pose Estimation

Huei-Chung Hu, Xuyang Wu, Yuan Wang +2

Numerous works concerning head pose estimation (HPE) offer algorithms or proposed neural network-based approaches for extracting Euler angles from either facial key points or direc…

cs.LG2020

Leveraging an Efficient and Semantic Location Embedding to Seek New Ports of Bike Share Services

Yuan Wang, Chenwei Wang, Yinan Ling +3

For short distance traveling in crowded urban areas, bike share services are becoming popular owing to the flexibility and convenience. To expand the service coverage, one of the k…

cs.LG2018

PPD: Permutation Phase Defense Against Adversarial Examples in Deep Learning

Mehdi Jafarnia-Jahromi, Tasmin Chowdhury, Hsin-Tai Wu +1

Deep neural networks have demonstrated cutting edge performance on various tasks including classification. However, it is well known that adversarially designed imperceptible pertu…