activity
20242026
collaborators

5 papers

cs.LG2026

Scalable Pairwise Kernel Learning with Stochastic Vec Trick

Napsu Karmitsa, Tapio Pahikkala, Antti Airola

Pairwise learning is a specialized form of supervised learning that focuses on predicting outcomes for pairs of objects. In this work, we introduce SPaiK, a new scalable kernel lea…

cs.CR2026

A Comprehensive Guide to Differential Privacy: From Theory to User Expectations

Napsu Karmitsa, Antti Airola, Tapio Pahikkala +1

The increasing availability of personal data has enabled significant advances in fields such as machine learning, healthcare, and cybersecurity. However, this data abundance also r…

cs.LG2026

Evaluation metrics for temporal preservation in synthetic longitudinal patient data

Katariina Perkonoja, Parisa Movahedi, Antti Airola +2

This study introduces a set of metrics for evaluating temporal preservation in synthetic longitudinal patient data, defined as artificially generated data that mimic real patients'…

cs.LG2025

Interaction Concordance Index: Performance Evaluation for Interaction Prediction Methods

Tapio Pahikkala, Riikka Numminen, Parisa Movahedi +2

Consider two sets of entities and their members' mutual affinity values, say drug-target affinities (DTA). Drugs and targets are said to interact in their effects on DTAs if drug's…

cs.LG2024

Empirical investigation of multi-source cross-validation in clinical ECG classification

Tuija Leinonen, David Wong, Antti Vasankari +4

Traditionally, machine learning-based clinical prediction models have been trained and evaluated on patient data from a single source, such as a hospital. Cross-validation methods…