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Author

Mei-Hui Zhang

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Book Open access Aug 2026

Black-Box Embedding Inversion Attack on Vector Databases

A novel black-box image embedding inversion attack that reconstructs high-fidelity images using only query access to the embedding model or API, and introduces an embedding-guided cross-attention mechanism, where image embeddings serve as conditional signals to steer the generation process.

Lichao Sun, Yun-Cheng Wu, Hai-Chao Sha et al. · 0 citations
Oct 2026

LFAMLedger: Account Migration Across Blockchain Shards Using a Lock-Free Mechanism

With the development of sharded blockchains, account migration mechanisms migrate accounts selected by account partition algorithms from the source shard to the target shard, aiming to reduce cross-shard transactions and balance the load. Moreover, the cost of account migration plays a critical role in determining the...

Shuai Zhao, Zhiwei Zhang, Jun-Kai Wang et al. · 0 citations
Book Open access Aug 2026

Black-Box Embedding Inversion Attack on Vector Databases

A novel black-box image embedding inversion attack that reconstructs high-fidelity images using only query access to the embedding model or API, and introduces an embedding-guided cross-attention mechanism, where image embeddings serve as conditional signals to steer the generation process.

Lichao Sun, Yuncheng Wu, Haichao Sha et al. · 0 citations

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