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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Richong Zhang

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Preprint Aug 2026

ExeCRE: Execution-Consistency Guided Reliability Estimation for Self-Correcting Code Generation

ExeCRE is an Execution-Consistency guided code Reliability Estimation framework that estimates code reliability by statistically analyzing consistency patterns in execution outputs over a large number of randomly generated inputs, and applies the Dawid-Skene model to infer latent code reliability.

Yirui Dong, Richong Zhang, Fanshuang Kong et al. · 0 citations
Preprint Aug 2026

DEPT: Document Embedding Preservation Tuning for Unified Query Expansion and Retrieval

Document Embedding Preservation Tuning (DEPT) is introduced, which keeps tuned document embeddings close to cached initial embeddings while allowing retrieval gradients to pass through straight-through decoding into the generator.

Jingyuan Wang, Richong Zhang, Zhijie Nie et al. · 0 citations
Book Open access Jul 2026

Constructing Hard-Positive Query–Document Pairs for Dense Retrieval via Phrase Representativeness

This work defines model-specific Token and Phrase Representativeness Scores (TRS/PRS) to discover tokens and key phrases that appear in a document but are poorly expressed by its embedding, which improve retrieval on a constructed hard-positive benchmark and can also improve standard in-domain retrieval benchmarks.

Zhanyu Wu, Richong Zhang, Zhijie Nie · 0 citations

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