{"pk":25439,"title":"Learning and Generalizing Cross-Category Relations\nUsing Hierarchical Distributed Representations","subtitle":null,"abstract":"Recent work has begun to investigate how structured relations\ncan be learned from non-relational and distributed input\nrepresentations. A difficult challenge is to capture the human\nability to evaluate relations between items drawn from distinct\ncategories (e.g., deciding whether a truck is larger than a\nhorse), given that different features may be relevant to\nassessing the relation for different categories. We describe an\nextension of Bayesian Analogy with Relational\nTransformations (BART; Lu, Chen & Holyoak, 2012) that\ncan learn cross-category comparative relations from\nautonomously-generated and distributed input representations.\nBART first learns separate representations of a relation for\ndifferent categories and creates second-order features based\non these category-specific representations. BART then learns\nweights on these second-order features, resulting in a\ncategory-general representation of the relation. This\nhierarchical learning model successfully generalizes the\nrelation to novel pairs of items (including items from different\ncategories), outperforming a flat version of the learning\nmodel.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"relation learning; generalization; distributed\nrepresentations; Bayesian models"}],"section":"Papers","is_remote":true,"remote_url":"https://escholarship.org/uc/item/6mq913zs","frozenauthors":[{"first_name":"Dawn","middle_name":"","last_name":"Chen","name_suffix":"","institution":"Department of Pyschology, UCLA","department":""},{"first_name":"Hongjing","middle_name":"","last_name":"Lu","name_suffix":"","institution":"Department of Psychology and Department of Statistics, UCLA","department":""},{"first_name":"Keih","middle_name":"J","last_name":"Holyoak","name_suffix":"","institution":"Department of Pyschology, UCLA","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2015-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/25439/galley/15063/download/"}]}