3 papers
cs.DB2026
Unified Dominance Graph for Interval-Predicate Approximate Nearest Neighbor Search
Kwun Hang Lau, Ruiyuan Zhang, Elton Chun-Chai Li +3
Approximate Nearest Neighbor Search (ANNS) is a core primitive for unstructured data retrieval. Real-world applications--such as temporal databases, financial data analysis, and re…
cs.CL2025
Reading Between the Timelines: RAG for Answering Diachronic Questions
Kwun Hang Lau, Ruiyuan Zhang, Weijie Shi +2
While Retrieval-Augmented Generation (RAG) excels at injecting static, factual knowledge into Large Language Models (LLMs), it exhibits a critical deficit in handling longitudinal…
cs.LG2024
Exploring the Meaningfulness of Nearest Neighbor Search in High-Dimensional Space
Zhonghan Chen, Ruiyuan Zhang, Xi Zhao +2
Dense high dimensional vectors are becoming increasingly vital in fields such as computer vision, machine learning, and large language models (LLMs), serving as standard representa…