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Zeyu Xiong

4 accepted papers

2025

DPGA-TextSyn: Differentially Private Genetic Algorithm for Synthetic Text Generation

ACL 2025finding

Using large language models (LLMs) has a potential risk of privacy leakage since the data with sensitive information may be used for fine-tuning the LLMs. Differential privacy (DP) provides theoretical guarantees of privacy protection, but its practical application in LLMs still has the problem of p…

2024

Rethinking Weakly-supervised Video Temporal Grounding From a Game Perspective

ECCV 2024poster

"This paper addresses the challenging task of weakly-supervised video temporal grounding. Existing approaches are generally based on the moment proposal selection framework that utilizes contrastive learning and reconstruction paradigm for scoring the pre-defined moment proposals. Although they have…

Cited by 16Source ↗PDF ↗Scholar ↗
2023

Tracking Objects and Activities with Attention for Temporal Sentence Grounding

ICASSP 2023accepted

Temporal sentence grounding (TSG) aims to localize the temporal segment which is semantically aligned with a natural language query in an untrimmed video. Most existing methods extract frame-grained features or object-grained features by 3D ConvNet or detection network under a conventional TSG frame…

Cited by 0Source ↗Scholar ↗
2022

Rethinking the Video Sampling and Reasoning Strategies for Temporal Sentence Grounding

EMNLP 2022finding

Temporal sentence grounding (TSG) aims to identify the temporal boundary of a specific segment from an untrimmed video by a sentence query. All existing works first utilize a sparse sampling strategy to extract a fixed number of video frames and then interact them with query for reasoning.However, w…

Cited by 22Source ↗PDF ↗Scholar ↗