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cs.DB2026
Query-Centric Optimization of AI Workflows via Approximate Query Processing and Proxy Models
Huayi Wang, Jun Xu, Gromit Yeuk-Yin Chan
Many modern AI workflows -- ranging from LLM post-training pipelines to agentic reasoning tasks -- can be expressed as declarative queries whose expensive predicate is evaluated by…
cs.DB2026
U-HNSW: An Efficient Graph-based Solution to ANNS Under Universal Lp Metrics
Huayi Wang, Jingfan Meng, Jun Xu
Approximate nearest neighbor search under universal L_p metrics (ANNS-U-L_p) is an important and challenging research problem, as it requires answering queries under all possible p…