{"id":6191,"date":"2023-10-06T18:02:58","date_gmt":"2023-10-06T18:02:58","guid":{"rendered":"https:\/\/dailyai.com\/?p=6191"},"modified":"2023-10-06T18:12:33","modified_gmt":"2023-10-06T18:12:33","slug":"researchers-have-developed-an-ai-model-for-detecting-cannabis-use","status":"publish","type":"post","link":"https:\/\/dailyai.com\/fr\/2023\/10\/researchers-have-developed-an-ai-model-for-detecting-cannabis-use\/","title":{"rendered":"Des chercheurs ont mis au point un mod\u00e8le d'IA pour d\u00e9tecter la consommation de cannabis"},"content":{"rendered":"<p><strong>Les chercheurs ont utilis\u00e9 des donn\u00e9es provenant de smartphones et d'appareils Fitbit pour d\u00e9terminer le moment o\u00f9 les personnes \u00e9taient en \u00e9tat d'\u00e9bri\u00e9t\u00e9 avec une pr\u00e9cision de 85%. <\/strong><\/p>\n<p><span style=\"font-weight: 400;\">La consommation de cannabis est traditionnellement d\u00e9termin\u00e9e par des tests d'urine, de salive et de cheveux. Toutefois, ces m\u00e9thodes n\u00e9cessitent une analyse en laboratoire et la consommation imm\u00e9diate de cannabis peut ne pas \u00eatre imm\u00e9diatement apparente dans certains tests.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sang Won Bae et son \u00e9quipe du Stevens Institute of Technology, dans le New Jersey, ont cherch\u00e9 \u00e0 acc\u00e9l\u00e9rer le processus de d\u00e9termination des niveaux d'intoxication dangereux.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dans leur <\/span><a href=\"https:\/\/preprints.jmir.org\/preprint\/52270\"><span style=\"font-weight: 400;\">\u00e9tude<\/span><\/a><span style=\"font-weight: 400;\">33 consommateurs fr\u00e9quents de cannabis ont rapport\u00e9 leur consommation quotidienne sur une p\u00e9riode de 30 jours.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pendant toute cette p\u00e9riode, les participants ont port\u00e9 des trackers d'activit\u00e9 - \u00e0 savoir des Fibits - qui ont enregistr\u00e9 des mesures telles que la fr\u00e9quence cardiaque, le nombre de pas et les habitudes de sommeil. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pendant ce temps, les capteurs du t\u00e9l\u00e9phone surveillaient leurs micromouvements, tels que les habitudes de manipulation du t\u00e9l\u00e9phone, afin d'\u00e9valuer la coordination et la stabilit\u00e9.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Apr\u00e8s avoir recueilli les donn\u00e9es pr\u00e9liminaires des participants, l'\u00e9quipe a entra\u00een\u00e9 le mod\u00e8le d'apprentissage automatique \u00e0 reconna\u00eetre les signes potentiels de consommation de cannabis. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Test\u00e9 sur l'ensemble des donn\u00e9es restantes, le mod\u00e8le entra\u00een\u00e9 a atteint un taux de pr\u00e9cision de 85% dans l'identification des personnes ayant consomm\u00e9 du cannabis au cours des cinq minutes pr\u00e9c\u00e9dentes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les dispositifs portables tels que les Fitbits collectent de grandes quantit\u00e9s de donn\u00e9es sur leurs utilisateurs, mais les utiliser pour pr\u00e9dire si quelqu'un est d\u00e9fonc\u00e9 serait extr\u00eamement controvers\u00e9.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En ce qui concerne la pr\u00e9cision de l'IA, M. Chung indique qu'elle repose sur l'auto-d\u00e9claration des participants, ce qui entrave son utilisation dans le monde r\u00e9el.\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Fonctionnement de l'\u00e9tude<\/span><\/h2>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Objectif :<\/b><span style=\"font-weight: 400;\"> Les chercheurs ont cherch\u00e9 \u00e0 d\u00e9terminer si la combinaison de capteurs de smartphones et d'un Fitbit pouvait d\u00e9tecter avec pr\u00e9cision et en temps r\u00e9el les \u00e9pisodes d'intoxication aigu\u00eb \u00e0 la marijuana.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>M\u00e9thodologie :<\/b><span style=\"font-weight: 400;\"> Sur une p\u00e9riode de 30 jours, 33 jeunes adultes ont rapport\u00e9 leur consommation de marijuana et les sentiments d'intoxication qui y sont associ\u00e9s. Ils ont consign\u00e9 leurs sentiments subjectifs dans les 15 minutes qui ont suivi la consommation de marijuana et pour trois invites quotidiennes semi-al\u00e9atoires.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Variables mesur\u00e9es :<\/b><span style=\"font-weight: 400;\"> Les participants ont \u00e9valu\u00e9 leur \u00e9tat d'\u00e9bri\u00e9t\u00e9 sur une \u00e9chelle : \"pas intoxiqu\u00e9\" (score = 0), \"faible intoxication\" (score = 1-3), et \"intoxication mod\u00e9r\u00e9e \u00e0 forte\" (score = 4-10). Les capteurs du smartphone et le Fitbit ont mesur\u00e9 des facteurs tels que la fr\u00e9quence cardiaque, les micro-mouvements et les mouvements plus importants d\u00e9termin\u00e9s par le GPS (appel\u00e9s macro-mouvements ou rayon de giration) et les niveaux d'\u00e9nergie sonore dans leur environnement imm\u00e9diat.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>R\u00e9sultats :<\/b><span style=\"font-weight: 400;\"> En mod\u00e9lisant les donn\u00e9es avec le classificateur EXtreme Gradient Boosting Machine (XGBoost), les chercheurs ont pu d\u00e9tecter si les personnes avaient consomm\u00e9 du cannabis au cours des cinq derni\u00e8res minutes avec une pr\u00e9cision de 85%.<\/span><\/li>\n<\/ol>\n<p>Surveiller les personnes \u00e0 l'aide de leurs appareils portables afin de d\u00e9terminer leur consommation potentielle de cannabis <span style=\"font-weight: 400;\">- c'est une fa\u00e7on de<\/span><span style=\"font-weight: 400;\"> augmenter leur niveau de parano\u00efa.\u00a0<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Les chercheurs ont utilis\u00e9 des donn\u00e9es provenant de smartphones et d'appareils Fitbit pour d\u00e9terminer avec une pr\u00e9cision de 85% quand les gens \u00e9taient d\u00e9fonc\u00e9s. La consommation de cannabis est traditionnellement d\u00e9termin\u00e9e par des tests d'urine, de salive et de m\u00e8ches de cheveux. Toutefois, ces m\u00e9thodes n\u00e9cessitent une analyse en laboratoire, et la consommation imm\u00e9diate de cannabis peut ne pas \u00eatre imm\u00e9diatement apparente dans certains tests.  Sang Won Bae et son \u00e9quipe du Stevens Institute of Technology, dans le New Jersey, ont cherch\u00e9 \u00e0 acc\u00e9l\u00e9rer le processus de d\u00e9termination des niveaux d'intoxication dangereux. Dans leur \u00e9tude, 33 consommateurs fr\u00e9quents de cannabis ont rapport\u00e9 leur consommation quotidienne sur une p\u00e9riode de 30 jours. Tout au long de cette p\u00e9riode, les participants ont port\u00e9 des trackers d'activit\u00e9, \u00e0 savoir des Fibits, qui ont enregistr\u00e9 les donn\u00e9es suivantes<\/p>","protected":false},"author":2,"featured_media":6192,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[105,421],"class_list":["post-6191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethics","tag-machine-learning","tag-wearables"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Researchers have developed an AI model for detecting cannabis use | DailyAI<\/title>\n<meta name=\"description\" content=\"Researchers used data from smartphones and Fitbit wearables to determine when people were high with 85% accuracy.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dailyai.com\/fr\/2023\/10\/researchers-have-developed-an-ai-model-for-detecting-cannabis-use\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Researchers have developed an AI model for detecting cannabis use | DailyAI\" \/>\n<meta property=\"og:description\" content=\"Researchers used data from smartphones and Fitbit wearables to determine when people were high with 85% accuracy.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dailyai.com\/fr\/2023\/10\/researchers-have-developed-an-ai-model-for-detecting-cannabis-use\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2023-10-06T18:02:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-06T18:12:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2023\/10\/shutterstock_1012225366.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"667\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sam Jeans\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:site\" content=\"@DailyAIOfficial\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sam Jeans\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/10\\\/researchers-have-developed-an-ai-model-for-detecting-cannabis-use\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/10\\\/researchers-have-developed-an-ai-model-for-detecting-cannabis-use\\\/\"},\"author\":{\"name\":\"Sam Jeans\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/#\\\/schema\\\/person\\\/711e81f945549438e8bbc579efdeb3c9\"},\"headline\":\"Researchers have developed an AI model for detecting cannabis use\",\"datePublished\":\"2023-10-06T18:02:58+00:00\",\"dateModified\":\"2023-10-06T18:12:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/10\\\/researchers-have-developed-an-ai-model-for-detecting-cannabis-use\\\/\"},\"wordCount\":378,\"publisher\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2023\\\/10\\\/researchers-have-developed-an-ai-model-for-detecting-cannabis-use\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dailyai.com\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/shutterstock_1012225366.jpg\",\"keywords\":[\"machine learning\",\"Wearables\"],\"articleSection\":[\"Ethics &amp; 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