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In the \"wake\" phase, neurons are driven by recognition connections, and generative connections are adapted to increase the probability that they would reconstruct the correct activity vector in the layer below. In the \"sleep\" phase, neurons are driven by generative connections, and recognition connections are adapted to increase the probability that they would produce the correct activity vector in the layer above.<\/jats:p>","DOI":"10.1126\/science.7761831","type":"journal-article","created":{"date-parts":[[2006,10,27]],"date-time":"2006-10-27T14:19:42Z","timestamp":1161958782000},"page":"1158-1161","source":"Crossref","is-referenced-by-count":617,"title":["The \"Wake-Sleep\" Algorithm for Unsupervised Neural Networks"],"prefix":"10.1126","volume":"268","author":[{"given":"Geoffrey E.","family":"Hinton","sequence":"first","affiliation":[{"name":"Department of Computer Science, University of Toronto, Toronto, M5S 1 A4, Ontario, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Dayan","sequence":"additional","affiliation":[{"name":"Department of Computer Science, University of Toronto, Toronto, M5S 1 A4, Ontario, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brendan J.","family":"Frey","sequence":"additional","affiliation":[{"name":"Department of Computer Science, University of Toronto, Toronto, M5S 1 A4, Ontario, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Radford M.","family":"Neal","sequence":"additional","affiliation":[{"name":"Department of Computer Science, University of Toronto, Toronto, M5S 1 A4, Ontario, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1162\/neco.1989.1.3.295","volume":"1","year":"1989","unstructured":"Barlow, H. 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