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Zhixing Tan

10 accepted papers

2026

Tell Model Where to Look: Mitigating Hallucinations in MLLMs by Vision-Guided Attention

CVPR 2026

Visual attention serves as the primary mechanism through which MLLMs interpret visual information; however, its limited localization capability often leads to hallucinations. We observe that although MLLMs can accurately extract visual semantics from visual tokens, they fail to fully leverage this a

Cited by 0SourceScholar
2025

LLM×MapReduce: Simplified Long-Sequence Processing using Large Language Models

ACL 2025long

We propose a training-free framework that enables large language models (LLMs) to effectively process long texts, using a divide-and-conquer strategy for comprehensive document understanding.The proposed LLM×MapReduce framework splits the entire document into several chunks for LLMs to read and then…

Cited by 0SourcePDFScholar
2024

MatPlotAgent: Method and Evaluation for LLM-Based Agentic Scientific Data Visualization

ACL 2024findings

Scientific data visualization plays a crucial role in research by enabling the direct display of complex information and assisting researchers in identifying implicit patterns. Despite its importance, the use of Large Language Models (LLMs) for scientific data visualization remains rather unexplored…

2022

A Template-based Method for Constrained Neural Machine Translation

EMNLP 2022main

Machine translation systems are expected to cope with various types of constraints in many practical scenarios. While neural machine translation (NMT) has achieved strong performance in unconstrained cases, it is non-trivial to impose pre-specified constraints into the translation process of NMT mod…

2022

MSP: Multi-Stage Prompting for Making Pre-trained Language Models Better Translators

ACL 2022long

Prompting has recently been shown as a promising approach for applying pre-trained language models to perform downstream tasks. We present Multi-Stage Prompting, a simple and automatic approach for leveraging pre-trained language models to translation tasks. To better mitigate the discrepancy betwee…

2022

Molecule Generation by Principal Subgraph Mining and Assembling

NeurIPS 2022accept

Molecule generation is central to a variety of applications. Current attention has been paid to approaching the generation task as subgraph prediction and assembling. Nevertheless, these methods usually rely on hand-crafted or external subgraph construction, and the subgraph assembling depends solel…

Cited by 62SourcePDFScholar
2021

Knowledge Representation Learning with Contrastive Completion Coding

EMNLP 2021finding

Knowledge representation learning (KRL) has been used in plenty of knowledge-driven tasks. Despite fruitfully progress, existing methods still suffer from the immaturity on tackling potentially-imperfect knowledge graphs and highly-imbalanced positive-negative instances during training, both of whic…

2021

Self-Supervised Quality Estimation for Machine Translation

EMNLP 2021main

Quality estimation (QE) of machine translation (MT) aims to evaluate the quality of machine-translated sentences without references and is important in practical applications of MT. Training QE models require massive parallel data with hand-crafted quality annotations, which are time-consuming and l…

Cited by 14SourcePDFScholar
2020

Modeling Voting for System Combination in Machine Translation

IJCAI 2020poster

System combination is an important technique for combining the hypotheses of different machine translation systems to improve translation performance. Although early statistical approaches to system combination have been proven effective in analyzing the consensus between hypotheses, they suffer fro…