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TIANSHU ZHANG

8 accepted papers

2026

OmniDPO: A Preference Optimization Framework to Address Omni-Modal Hallucination

AAAI 2026technical

Recently, Omni-modal large language models (OLLMs) have sparked a new wave of research, achieving impressive results in tasks such as audio-video understanding and real-time environment perception. However, hallucination issues still persist. Similar to the bimodal setting, the priors from the text

Cited by 0SourcePDFScholar
2025

ICT: Image-Object Cross-Level Trusted Intervention for Mitigating Object Hallucination in Large Vision-Language Models

CVPR 2025poster

Despite the recent breakthroughs achieved by Large Vision Language Models (LVLMs) in understanding and responding to complex visual-textual contexts, their inherent hallucination tendencies limit their practical application in real-world scenarios that demand high levels of precision. Existing metho…

2025

Mind2Web 2: Evaluating Agentic Search with Agent-as-a-Judge

NeurIPS 2025poster

Agentic search such as Deep Research systems-where agents autonomously browse the web, synthesize information, and return comprehensive citation-backed answers-represents a major shift in how users interact with web-scale information. While promising greater efficiency and cognitive offloading, the…

Cited by 0SourceScholar
2023

Exploring Chain of Thought Style Prompting for Text-to-SQL

EMNLP 2023long main

In-context learning with large language models (LLMs) has recently caught increasing attention due to its superior few-shot performance on various tasks. However, its performance on text-to-SQL parsing still has much room for improvement. In this paper, we hypothesize that a crucial aspect of LLMs t…

Cited by 0SourceScholar
2023

Federated Learning for Semantic Parsing: Task Formulation, Evaluation Setup, New Algorithms

ACL 2023long

This paper studies a new task of federated learning (FL) for semantic parsing, where multiple clients collaboratively train one global model without sharing their semantic parsing data. By leveraging data from multiple clients, the FL paradigm can be especially beneficial for clients that have littl…