Author

Chaoji Zuo

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Jul 2026

CGIF: Combining Proximity Graphs and Inverted Files for Efficient Filtered Vector Search over Arbitrary Predicates

Modern retrieval systems increasingly require filtered vector search under arbitrary predicate constraints, where users filter results by attributes such as category, price, location, keywords, and their combinations. Existing solutions either specialize in a single predicate type (e.g., range or equality filters), rel...

Jiarui Luo, Chaoji Zuo, Dong-Jie Deng · Proceedings of the VLDB Endo... · 0 citations

Jul 2026

ChronoMem: Version Control and Semantic Rollback for Large Language Model Agent Memory

ChronoMem is the first open-source system and benchmark for systematic semantic global memory rollback in LLM agents, and a post-exposure evaluation protocol that tests whether an agent can behave counterfactually after rollback by answering queries and summarizing history as if future updates had never occurred.

Yongye Su, Wujiang Xu, Chaoji Zuo et al. · arXiv.org · 1 citation