3 papers
cs.DB2025
Forgetting by Pruning: Data Deletion in Join Cardinality Estimation
Chaowei He, Yuanjun Liu, Qingzhi Ma +4
Machine unlearning in learned cardinality estimation (CE) systems presents unique challenges due to the complex distributional dependencies in multi-table relational data. Specific…
cs.DB2025
TKHist: Cardinality Estimation for Join Queries via Histograms with Dominant Attribute Correlation Finding
Renrui Li, Qingzhi Ma, Jiajie Xu +2
Cardinality estimation has long been crucial for cost-based database optimizers in identifying optimal query execution plans, attracting significant attention over the past decades…
cs.AI2025
GBV-SQL: Guided Generation and SQL2Text Back-Translation Validation for Multi-Agent Text2SQL
Daojun Chen, Xi Wang, Shenyuan Ren +3
While Large Language Models have significantly advanced Text2SQL generation, a critical semantic gap persists where syntactically valid queries often misinterpret user intent. To m…