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D. Subramanian

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#artificial intelligence Preprint Oct 2026

Semantic Views: Certified Reuse of LLM Labels Across Semantic Queries

Semantic query engines evaluate natural-language filters with a large language model, and every evaluation is a costly oracle call. Optimizers that reduce these calls face a dilemma: cascades that trust a cheap proxy miss their precision and recall targets on many queries, methods with finite-sample guarantees save lit...

Oktie Hassanzadeh, D. Subramanian · 0 citations
Preprint Aug 2026

SAGE: A Unified Algebra and Self-Adaptive Execution for AI Functions in SQL

SAGE achieves the strongest overall SemBench performance and, on a representative factorable join, reduces pairwise model calls by more than two orders of magnitude, yielding a 358-fold measured cost reduction.

Xiangqi Wang, Nhan H. Pham, Oktie Hassanzadeh et al. · 0 citations
Aug 2026

Text-to-SQL Evaluation Toolkit

This work demonstrates Text2SQL-Eval, an open-source, modular framework for rigorous evaluation of text-to-SQL systems, which provides a comprehensive suite of over twelve metrics, spanning execution accuracy, SQL syntactic equivalence, and LLM-as-judge scoring.

Oktie Hassanzadeh, Yotam Perlitz, Nhan H. Pham et al. · 0 citations
Jun 2026

Test-Time Verification for Text-to-SQL via Outcome Reward Models

It is demonstrated that ORM-based verification provides a simple, effective, and scalable alternative to heuristic test-time selection strategies for Text-to-SQL, and that ORMs scale effectively with larger candidate sets and yield stronger improvements on complex queries.

M. Tritto, G. Farano, Dario Di Palma et al. · 1 citation · ⚡1
Open access Jul 2026

GradeSQL: Outcome reward models for intelligent Text-to-SQL generation from LLMs

As Large Language Models (LLMs) become foundational to next-generation Intelligent Information Systems, the bridge between natural language interfaces and structured database systems remains a critical bottleneck. While Text-to-SQL generation enables cooperative support for complex query formulation, ensuring the rel...

M. Tritto, G. Farano, Dario Di Palma et al. · 2 citations

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