Alignment-Guided Largest Table Overlap Size Estimation
Fast estimation of the size of the largest overlap between tables enables blocking and query-by-table retrieval in large table repositories. The first and the state-of-the-art estimator Armadillo improves efficiency by embedding each table independently and approximating overlap ratio via embedding similarity. However, accurate estimation in heterogeneous repositories remains limited by three challenges: (C1) overlap depends on row-column structure, i.e., each matched cell must preserve both its row and column membership under a joint alignment of the two tables, but existing encodings leave this structure to be inferred indirectly; (C2) independent encoding provides no explicit channel f...
| Authors | Ge Lee, Shixun Huang, Zhifeng Bao et al. |
|---|---|
| Primary category | cs.CL |
| Published | 3 July 2026 |
| Last updated at source | 3 July 2026 |
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