{"id":147459,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/msr-research-item\/learning-bayesian-networks-is-np-complete\/"},"modified":"2018-10-16T21:20:08","modified_gmt":"2018-10-17T04:20:08","slug":"learning-bayesian-networks-is-np-complete","status":"publish","type":"msr-research-item","link":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/publication\/learning-bayesian-networks-is-np-complete\/","title":{"rendered":"Learning Bayesian Networks is NP-Complete"},"content":{"rendered":"<p>Algorithms for learning Bayesian networks from data have two components: a scoring metric and a search procedure. The scoring metric computes a score reflecting the goodness-of-\ffit of the structure to the data. The search procedure tries to identify network structures with high scores. Heckerman et al. (1995) introduce a Bayesian metric, called the BDe metric, that computes the relative posterior probability of a network structure given data. In this paper, we show that the search problem of identifying a Bayesian network &#8211; among those where each node has at most K parents &#8211; that has a relative posterior probability greater than a given constant is NP &#8211; complete, when the BDe metric is used.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Algorithms for learning Bayesian networks from data have two components: a scoring metric and a search procedure. The scoring metric computes a score reflecting the goodness-of-\ffit of the structure to the data. The search procedure tries to identify network structures with high scores. Heckerman et al. (1995) introduce a Bayesian metric, called the BDe metric, [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"Springer-Verlag","msr_publisher_other":"","msr_booktitle":"Learning from Data: Artificial Intelligence and Statistics V","msr_chapter":"","msr_edition":"Learning from Data: Artificial Intelligence and Statistics V","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"121-130","msr_page_range_start":"121","msr_page_range_end":"130","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"","msr_doi":"","msr_arxiv_id":"","msr_s2_paper_id":"","msr_mag_id":"","msr_pubmed_id":"","msr_other_authors":"David Maxwell 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