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cs.LG2023
Anomaly Detection via Gumbel Noise Score Matching
Ahsan Mahmood, Junier Oliva, Martin Styner
We propose Gumbel Noise Score Matching (GNSM), a novel unsupervised method to detect anomalies in categorical data. GNSM accomplishes this by estimating the scores, i.e. the gradie…
cs.LG2023
Acquisition Conditioned Oracle for Nongreedy Active Feature Acquisition
Michael Valancius, Max Lennon, Junier Oliva
We develop novel methodology for active feature acquisition (AFA), the study of how to sequentially acquire a dynamic (on a per instance basis) subset of features that minimizes ac…