Linus Aronsson

2 accepted papers

2026

A Survey on Active Feature Acquisition Strategies

Linus Aronsson, Arman Rahbar, Morteza Haghir Chehreghani

IJCAI 2026

Active feature acquisition (AFA) studies how a predictive system can sequentially choose which feature values to obtain for each instance to balance predictive accuracy against feature acquisition cost (financial, time, invasiveness, or privacy). This survey provides the first unified treatment of m

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2025

An Efficient Local Search Approach for Polarized Community Discovery in Signed Networks

Linus Aronsson, Morteza Haghir Chehreghani

NeurIPS 2025poster

Signed networks, where edges are labeled as positive or negative to represent friendly or antagonistic interactions, offer a natural framework for analyzing polarization, trust, and conflict in social systems. Detecting meaningful group structures in such networks is crucial for understanding online…

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