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To reach such autonomy and adaptability, ambient systems need to automatically grasp their users\u2019 ambient context. In particular, users\u2019 activities and availabilities for communication are valuable pieces of contextual information that can help such systems to adapt to user needs and behaviours. While significant research work exists on activity recognition in homes, less attention has been given to prediction of future activities, as well as to availability recognition and prediction in general. In this article, we investigate several Dynamic Bayesian Network (DBN) architectures for activity and availability prediction of occupants in homes, including our novel model, called Past SItuations to predict the NExt Situation (PSINES). This predictive architecture utilizes context information, sensor event aggregations, and latent user cognitive states to accurately predict future home situations based on previous situations. We experimentally evaluate PSINES, as well as intermediate DBN architectures, on multiple state-of-the-art datasets, with prediction accuracies of up to 89.52% for activity and 82.08% for availability on the Orange4Home dataset.<\/jats:p>","DOI":"10.1145\/3424344","type":"journal-article","created":{"date-parts":[[2020,12,31]],"date-time":"2020-12-31T18:47:56Z","timestamp":1609440476000},"page":"1-12","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["PSINES"],"prefix":"10.1145","volume":"15","author":[{"given":"Julien","family":"Cumin","sequence":"first","affiliation":[{"name":"Orange Labs, Meylan, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1325-3010","authenticated-orcid":false,"given":"Gr\u00e9goire","family":"Lefebvre","sequence":"additional","affiliation":[{"name":"Orange Labs, Meylan, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fano","family":"Ramparany","sequence":"additional","affiliation":[{"name":"Orange Labs, Meylan, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James L.","family":"Crowley","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Grenoble Alpes, Inria, CNRS, Grenoble INP, LIG, Grenoble, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2020,12,31]]},"reference":[{"key":"e_1_2_1_1_1","volume-title":"Crowley and Joelle Coutaz","author":"James","year":"2015","unstructured":"James L. 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