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Compositional Online Learning for Semantic Data Processing Systems

Research Efficiency & Systems

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Overall 78
Content 95
Popularity 37

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Merged summary

TL;DR - This paper introduces compositional online learning for semantic data systems, exploiting LLM-call latency to hide CPU-side model updates. In a Cortex AISQL case study, combined filter ordering and cascade routing reduce estimated per-row LLM cost by a realistic factor near 8×.

  • Learner updates, including gradient steps and threshold optimization, run during the next LLM round-trip rather than adding latency.
  • The framework organizes components by decision granularity and update cadence while sharing a common online-training pattern.
  • The production design combines memoization, per-call filter ordering, and per-batch cascade routing.
  • Theoretical savings reach an 11.4× upper bound under independence, reduced by practical effects such as self-selection, smaller sample budgets, and selectivity drift.

Sources (1)

Compositional Online Learning for Semantic Data Processing Systems

arXiv cs.DB Paweł Liskowski, Fuheng Zhao, Benjamin Han, Anupam Datta, Dimitris Tsirogiannis 2026-08-27 arXiv:2608.27244
Public signals Semantic Scholar citations 0 · Semantic Scholar influential citations 0
Providers: Hugging Face · N/A OpenAlex · N/A Publisher · N/A Semantic Scholar · Citations 0 · Influential citations 0 X · N/A Fetched 2026-09-14 14:14:49.281313 UTC

TL;DR - This paper introduces compositional online learning for semantic data systems, exploiting LLM-call latency to hide CPU-side model updates. In a Cortex AISQL case study, combined filter ordering and cascade routing reduce estimated per-row LLM cost by a realistic factor near 8×.

  • Learner updates, including gradient steps and threshold optimization, run during the next LLM round-trip rather than adding latency.
  • The framework organizes components by decision granularity and update cadence while sharing a common online-training pattern.
  • The production design combines memoization, per-call filter ordering, and per-batch cascade routing.
  • Theoretical savings reach an 11.4× upper bound under independence, reduced by practical effects such as self-selection, smaller sample budgets, and selectivity drift.
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