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Lixin Chen

4 accepted papers

2026

StegaVAR: Privacy-Preserving Video Action Recognition via Steganographic Domain Analysis

AAAI 2026technical

Despite the rapid progress of deep learning in video action recognition (VAR) in recent years, privacy leakage in videos remains a critical concern. Current state-of-the-art privacy-preserving methods often rely on anonymization. These methods suffer from (1) low concealment, where producing visuall

Cited by 0SourcePDFScholar
2025

RDPA: Real-Time Distributed-Concentrated Penetration Attack for Point Cloud Learning

IJCAI 2025

Partial point attack approaches focus on leveraging the fewest points to achieve the best attack efficiency for easy implementation in the physical domain. For the first time, this paper proposes that the partial point attack strategy should pay attention to not only the selection and disturbance of

Cited by 0SourcePDFScholar
2025

SMEC:Rethinking Matryoshka Representation Learning for Retrieval Embedding Compression

EMNLP 2025

Large language models (LLMs) generate high-dimensional embeddings that capture rich semantic and syntactic information. However, high-dimensional embeddings exacerbate computational complexity and storage requirements, thereby hindering practical deployment. To address these challenges, we propose a

Cited by 0SourcePDFScholar