CONCEPT REFINEMENT USING CONCEPT ACTIVATION VECTORS

A search query and a concept comprising a feature are received from a user. Positive and negative item sets are identified, where items of the positive item set comprise the feature and items of the negative item set do not comprise the feature. A hyperplane located between the positive and negative...

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Bibliographische Detailangaben
Hauptverfasser: BEN-SHAUL, Ido, BASIN, Dmitry
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A search query and a concept comprising a feature are received from a user. Positive and negative item sets are identified, where items of the positive item set comprise the feature and items of the negative item set do not comprise the feature. A hyperplane located between the positive and negative item sets is generated using a machine learning model. A concept activation vector (CAV) orthogonal to the hyperplane is determined. The CAV is used to produce a modified search query vector. Based on comparing the modified search query vector with item vectors, a second set of search results is provided.