SIGNALAI·May 22, 2026, 4:00 AMSignal75Short term

Residual Skill Optimization for Text-to-SQL Ensembles

Source: arXiv cs.LG

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Residual Skill Optimization for Text-to-SQL Ensembles

arXiv:2605.21792v1 Announce Type: cross Abstract: Text-to-SQL ensembles improve over single-candidate generation by drawing multiple SQL candidates and selecting one, but their effectiveness is bounded by Pass@K, the probability that at least one of K candidates is correct. Existing methods source diversity heuristically through stochastic decoding or prompt variants, leaving candidate sets dominated by correlated failures. We present DivSkill-SQL, a residual skill optimization framework that builds complementary agentic Text-to-SQL ensembles without model fine-tuning: each new skill is optimi

Why this matters
Why now

The proliferation of Large Language Models (LLMs) and the increasing demand for automating complex data interactions are driving innovation in Text-to-SQL solutions, necessitating improved reliability and performance.

Why it’s important

This research enhances the reliability and effectiveness of Text-to-SQL systems, which are crucial components for enterprise data access, BI automation, and the development of more capable AI agents.

What changes

The ability to build more robust and complementary Text-to-SQL ensembles without fine-tuning individual models changes the approach to achieving higher accuracy in natural language interfaces for databases.

Winners
  • · AI Agent Developers
  • · Enterprises with complex databases
  • · Data Analysts
  • · Database Management Systems
Losers
  • · Manual SQL coders for routine tasks
Second-order effects
Direct

Improved Text-to-SQL accuracy leads to more reliable automated data querying and reporting.

Second

Enhanced data accessibility via natural language could accelerate enterprise digital transformation and AI integration.

Third

More sophisticated and reliable Text-to-SQL capabilities could reduce the barrier to entry for non-technical users interacting with complex data systems, fostering broader innovation.

Editorial confidence: 85 / 100 · Structural impact: 60 / 100
Original report

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Read at arXiv cs.LG
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