{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T09:37:19Z","timestamp":1785836239477,"version":"3.56.0"},"reference-count":68,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2022,10,11]],"date-time":"2022-10-11T00:00:00Z","timestamp":1665446400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"DAMP foundation","award":["SENSE \u201cSystemic Nutritional Medicine\u201d"],"award-info":[{"award-number":["SENSE \u201cSystemic Nutritional Medicine\u201d"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The perception of hunger and satiety is of great importance to maintaining a healthy body weight and avoiding chronic diseases such as obesity, underweight, or deficiency syndromes due to malnutrition. There are a number of disease patterns, characterized by a chronic loss of this perception. To our best knowledge, hunger and satiety cannot be classified using non-invasive measurements. Aiming to develop an objective classification system, this paper presents a multimodal sensory system using associated signal processing and pattern recognition methods for hunger and satiety detection based on non-invasive monitoring. We used an Empatica E4 smartwatch, a RespiBan wearable device, and JINS MEME smart glasses to capture physiological signals from five healthy normal weight subjects inactively sitting on a chair in a state of hunger and satiety. After pre-processing the signals, we compared different feature extraction approaches, either based on manual feature engineering or deep feature learning. Comparative experiments were carried out to determine the most appropriate sensor channel, device, and classifier to reliably discriminate between hunger and satiety states. Our experiments showed that the most discriminative features come from three specific sensor modalities: Electrodermal Activity (EDA), infrared Thermopile (Tmp), and Blood Volume Pulse (BVP).<\/jats:p>","DOI":"10.3390\/s22207711","type":"journal-article","created":{"date-parts":[[2022,10,12]],"date-time":"2022-10-12T02:10:27Z","timestamp":1665540627000},"page":"7711","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["SenseHunger: Machine Learning Approach to Hunger Detection Using Wearable Sensors"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4581-4107","authenticated-orcid":false,"given":"Muhammad Tausif","family":"Irshad","sequence":"first","affiliation":[{"name":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"},{"name":"Department of IT, University of the Punjab, Katchery Road, Lahore 54000, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3288-750X","authenticated-orcid":false,"given":"Muhammad Adeel","family":"Nisar","sequence":"additional","affiliation":[{"name":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"},{"name":"Department of IT, University of the Punjab, Katchery Road, Lahore 54000, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3210-3891","authenticated-orcid":false,"given":"Xinyu","family":"Huang","sequence":"additional","affiliation":[{"name":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jana","family":"Hartz","sequence":"additional","affiliation":[{"name":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olaf","family":"Flak","sequence":"additional","affiliation":[{"name":"Department of Management, Faculty of Law and Social Sciences, Jan Kochanowski University of Kielce, ul. \u017beromskiego 5, 25-369 Kielce, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2110-4207","authenticated-orcid":false,"given":"Fr\u00e9d\u00e9ric","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8610-2291","authenticated-orcid":false,"given":"Philip","family":"Gouverneur","sequence":"additional","affiliation":[{"name":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Artur","family":"Piet","sequence":"additional","affiliation":[{"name":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kerstin M.","family":"Oltmanns","sequence":"additional","affiliation":[{"name":"Section of Psychoneurobiology, Center of Brain, Behavior and Metabolism, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4877-8287","authenticated-orcid":false,"given":"Marcin","family":"Grzegorzek","sequence":"additional","affiliation":[{"name":"Institute of Medical Informatics, University of L\u00fcbeck, Ratzeburger Allee 160, 23562 L\u00fcbeck, Germany"},{"name":"Department of Knowledge Engineering, University of Economics in Katowice, Bogucicka 3, 40-287 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"84","DOI":"10.1016\/j.pneurobio.2013.12.001","article-title":"Obesity\u2013A neuropsychological disease? 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