{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,22]],"date-time":"2026-03-22T05:58:31Z","timestamp":1774159111924,"version":"3.50.1"},"reference-count":36,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T00:00:00Z","timestamp":1773964800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003069","name":"Instituto Polit\u00e9cnico Nacional","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100003069","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Algorithms"],"abstract":"<jats:p>Emotion identification via computer vision has made continuous progress over the last few years. Although images have been the gold standard for the past two decades, video is increasingly common. Video is particularly suitable for the study of emotions, as it allows them to be considered as spatiotemporal phenomena. In particular, the discovery of anxiety among Mexican students is a key element for improving their learning in the classroom. In pursuit of this goal, we focused on the following challenges. First, the scarcity of specialized datasets for this task prompted us to develop an experimental protocol to generate a specific dataset; second, to conduct a thorough study of the appropriate number of emotional intensity levels; and third, to develop a suitable design for a deep learning architecture. Our pivotal results include the development of a new dataset labeled with three different emotion levels and appropriate ConvNet architectures, complemented by a study of various intensity levels. The optimal architecture achieved an F1-score of 0.7620 across five intensity levels and provides an adequate baseline for multiclass classification.<\/jats:p>","DOI":"10.3390\/a19030235","type":"journal-article","created":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T17:02:43Z","timestamp":1774026163000},"page":"235","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Uncovering Several Degrees of Anxiety in Mexican Students Through Advanced Deep Learning Techniques"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1028-9197","authenticated-orcid":false,"given":"Marco A.","family":"Moreno-Armend\u00e1riz","sequence":"first","affiliation":[{"name":"Centro de Investigaci\u00f3n en Computaci\u00f3n, Instituto Polit\u00e9cnico Nacional, Ciudad de M\u00e9xico 07738, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2216-8608","authenticated-orcid":false,"given":"Arturo","family":"Lara-C\u00e1zares","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Computaci\u00f3n, Instituto Polit\u00e9cnico Nacional, Ciudad de M\u00e9xico 07738, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-2574-9140","authenticated-orcid":false,"given":"Jared","family":"Castillo-Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Escuela Superior de C\u00f3mputo, Instituto Polit\u00e9cnico Nacional, Av. Juan de Dios B\u00e1tiz s\/n, Col. Lindavista, Ciudad de M\u00e9xico 07738, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-4865-2429","authenticated-orcid":false,"given":"Halder V.","family":"Galdo-Navarro","sequence":"additional","affiliation":[{"name":"Escuela Superior de C\u00f3mputo, Instituto Polit\u00e9cnico Nacional, Av. Juan de Dios B\u00e1tiz s\/n, Col. Lindavista, Ciudad de M\u00e9xico 07738, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,3,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1192\/apt.11.5.355","article-title":"Anxiety disorders in people with learning disabilities","volume":"11","author":"Cooray","year":"2005","journal-title":"Adv. Psychiatr. 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