Yifei Wang
2 indexed papers
Recent (6 mo)
2With code
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226
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AI×2ML×2Info Retrieval×1Crypto×1
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Research Timeline
2026
Trusted Weights, Treacherous Optimizations? Optimization-Triggered Backdoor Attacks on LLMs
This paper introduces a novel class of backdoor attacks that exploit the numerical side effects of LLM inference optimization, achieving high success rates while maintaining clean accuracy.
No More K-means: Single-Stage Sparse Coding for Efficient Multi-Vector Retrieval
The paper introduces Single-stage Sparse Retrieval (SSR), a method that replaces computationally expensive vector clustering with sparse autoencoding to achieve highly efficient multi-vector retrieval with improved performance.
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Papers
cs.IRcs.AIcs.LGRecentMay 28, 2026
No More K-means: Single-Stage Sparse Coding for Efficient Multi-Vector Retrieval
Lixuan Guo, Yifei Wang, Tiansheng Wen, Aosong Feng +2 more
The paper introduces Single-stage Sparse Retrieval (SSR), a method that replaces computationally expensive vector clustering with sparse autoencoding to achieve highly efficient multi-vector retrieval…
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cs.CRcs.AIcs.LGRecentMay 20, 2026