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cs.DB2026
Poisoning Attacks on the PGM-index
Atsuki Sato, Martin Aumüller, Yusuke Matsui
The PGM-index (Ferragina and Vinciguerra, VLDB'20) is one of the most practical learned indexes, owing to its theoretical elegance and consistently strong empirical performance. It…
cs.LG2026
Mathematical Foundations of Poisoning Attacks on Linear Regression over Cumulative Distribution Functions
Atsuki Sato, Martin Aumüller, Yusuke Matsui
Learned indexes are a class of index data structures that enable fast search by approximating the cumulative distribution function (CDF) using machine learning models (Kraska et al…