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Healthcare"],"published-print":{"date-parts":[[2025,1,31]]},"abstract":"<jats:p>\n            Recognizing food types through sensor signals for unseen users remains remarkably challenging despite extensive recent studies. The efficacy of prior machine learning techniques is dwarfed by giant variations of data collected from multiple participants, partly because users have varied chewing habits and wear sensor devices in various manners. This work treats the problem as an instance of the domain adaptation problem, where each user represents a domain. We develop the first multi-source domain adaptation (MSDA) method for food-typing recognition, which consists of three major components: stratified normalization, a multi-source domain adaptor, and adaptive ensemble learning. New techniques are developed for each component. Using a real-world dataset comprised of 15 participants, we demonstrate that our method achieves\n            <jats:inline-formula content-type=\"math\/tex\">\n              <jats:tex-math notation=\"LaTeX\" version=\"MathJax\">\\(1.33\\times\\)<\/jats:tex-math>\n            <\/jats:inline-formula>\n            to\n            <jats:inline-formula content-type=\"math\/tex\">\n              <jats:tex-math notation=\"LaTeX\" version=\"MathJax\">\\(2.13\\times\\)<\/jats:tex-math>\n            <\/jats:inline-formula>\n            improvement in accuracy compared with nine state-of-the-art MSDA baselines. Additionally, we perform an in-depth ablation study to examine the behavior of each component and confirm its efficacy.\n          <\/jats:p>","DOI":"10.1145\/3696424","type":"journal-article","created":{"date-parts":[[2024,9,23]],"date-time":"2024-09-23T12:14:47Z","timestamp":1727093687000},"page":"1-21","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Towards Recognizing Food Types for Unseen Subjects"],"prefix":"10.1145","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5274-9169","authenticated-orcid":false,"given":"Jiexiong","family":"Guan","sequence":"first","affiliation":[{"name":"Computer Science Department, William &amp; Mary, Williamsburg, VA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-0831-0810","authenticated-orcid":false,"given":"Junjie","family":"Wang","sequence":"additional","affiliation":[{"name":"Computer Science Department, William &amp; Mary, Williamsburg, VA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2697-7042","authenticated-orcid":false,"given":"Wei","family":"Niu","sequence":"additional","affiliation":[{"name":"Computer Science Department, William &amp; Mary, Williamsburg, VA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2431-6037","authenticated-orcid":false,"given":"Zhen","family":"Peng","sequence":"additional","affiliation":[{"name":"Computer Science Department, William &amp; Mary, Williamsburg, VA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3967-9693","authenticated-orcid":false,"given":"Shuangquan","family":"Wang","sequence":"additional","affiliation":[{"name":"Computer Science Department, Salisbury University, Salisbury, MD, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9494-8748","authenticated-orcid":false,"given":"Zhenming","family":"Liu","sequence":"additional","affiliation":[{"name":"Computer Science Department, William &amp; Mary, Williamsburg, VA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4425-9837","authenticated-orcid":false,"given":"Gang","family":"Zhou","sequence":"additional","affiliation":[{"name":"Computer Science Department, William &amp; Mary, Williamsburg, VA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4116-5237","authenticated-orcid":false,"given":"Bin","family":"Ren","sequence":"additional","affiliation":[{"name":"Computer Science Department, William &amp; Mary, Williamsburg, VA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2025,1,8]]},"reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/ICSENS.2010.5690449"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/11551201_4"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/MPRV.2009.32"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1145\/3563948"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10994-009-5152-4"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.1109\/JSEN.2015.2469095"},{"key":"e_1_3_1_8_2","unstructured":"Minmin Chen Zhixiang Xu Kilian Weinberger and Fei Sha. 2012. 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