{"id":21837,"date":"2024-01-08T11:27:29","date_gmt":"2024-01-08T10:27:29","guid":{"rendered":"https:\/\/ggba.swiss\/using-ai-technology-to-identify-unique-chemical-signatures-of-prestigious-wines\/"},"modified":"2024-01-08T11:30:25","modified_gmt":"2024-01-08T10:30:25","slug":"utiliser-lia-pour-identifier-les-signatures-chimiques-uniques-de-vins-prestigieux","status":"publish","type":"post","link":"https:\/\/ggba.swiss\/fr\/utiliser-lia-pour-identifier-les-signatures-chimiques-uniques-de-vins-prestigieux\/","title":{"rendered":"Utiliser l&rsquo;IA pour identifier les signatures chimiques uniques de vins prestigieux"},"content":{"rendered":"\n<p>La m\u00e9thode de l&rsquo;<a href=\"https:\/\/www.unige.ch\/\">Universit\u00e9 de Gen\u00e8ve<\/a> et de l&rsquo;<a href=\"https:\/\/www.u-bordeaux.fr\/en\">Universit\u00e9 de Bordeaux<\/a> combine la chromatographie en phase gazeuse et l&rsquo;intelligence artificielle. Le processus consiste \u00e0 analyser les chromatogrammes d\u00e9taill\u00e9s, qui repr\u00e9sentent les s\u00e9parations mol\u00e9culaires dans le vin. Ces chromatogrammes sont complexes et contiennent des milliers de points de donn\u00e9es, ce qui rend l&rsquo;analyse et l&rsquo;identification manuelles presque impossibles. Cependant, en appliquant des algorithmes d&rsquo;apprentissage automatique, les chercheurs ont pu interpr\u00e9ter l&rsquo;ensemble du chromatogramme, y compris le \u00ab\u00a0bruit de fond\u00a0\u00bb, en le simplifiant en coordonn\u00e9es bidimensionnelles.<\/p>\n\n\n\n<p>Cette approche a permis de cr\u00e9er sept \u00ab&nbsp;nuages&nbsp;\u00bb distincts de points de donn\u00e9es, chacun repr\u00e9sentant l&#8217;empreinte chimique unique des vins d&rsquo;un domaine bordelais sp\u00e9cifique. Fait remarquable, les donn\u00e9es refl\u00e8tent \u00e9galement la situation g\u00e9ographique des vignobles situ\u00e9s le long des rives de la Garonne. Trois des signatures de vin ont \u00e9t\u00e9 regroup\u00e9es d&rsquo;un c\u00f4t\u00e9 du graphique et quatre de l&rsquo;autre, en corr\u00e9lation avec leur emplacement respectif sur les rives du fleuve.<\/p>\n\n\n\n<p><strong>Des outils plus efficaces pour l&rsquo;authentification des vins et l&rsquo;expression du terroir<\/strong><\/p>\n\n\n\n<p>Selon Alexandre Pouget, Professeur \u00e0 l&rsquo;Universit\u00e9 de Gen\u00e8ve, et Michael Schartner, ancien chercheur post-doctoral, cette technique a permis d&rsquo;identifier avec une pr\u00e9cision de 100 % l&rsquo;origine g\u00e9ographique des vins. Ces r\u00e9sultats ouvrent de nouvelles perspectives non seulement pour lutter contre la contrefa\u00e7on des vins, mais aussi pour aider les viticulteurs \u00e0 prendre des d\u00e9cisions \u00e9clair\u00e9es afin de pr\u00e9server l&rsquo;identit\u00e9 et l&rsquo;expression uniques de leurs terroirs.<\/p>\n\n\n\n<p>St\u00e9phanie Marchand, de l&rsquo;Universit\u00e9 de Bordeaux, coauteur de l&rsquo;\u00e9tude, a soulign\u00e9 que la m\u00e9thode ne se concentre pas uniquement sur des concentrations de mol\u00e9cules sp\u00e9cifiques, mais qu&rsquo;elle prend en compte un spectre chimique plus large. Cette avanc\u00e9e repr\u00e9sente un grand pas en avant dans la compr\u00e9hension des composants complexes du vin et ouvre la voie au d\u00e9veloppement d&rsquo;outils plus efficaces pour l&rsquo;authentification du vin et l&rsquo;expression du terroir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une \u00e9quipe de l&rsquo;Universit\u00e9 de Gen\u00e8ve, en partenariat avec l&rsquo;Universit\u00e9 de Bordeaux, a r\u00e9alis\u00e9 une avanc\u00e9e significative dans le domaine de la science du vin. En utilisant des techniques avanc\u00e9es d&rsquo;apprentissage automatique, ils ont r\u00e9ussi \u00e0 identifier les signatures chimiques distinctes de sept vins rouges renomm\u00e9s de la r\u00e9gion de Bordeaux.<\/p>\n","protected":false},"author":6,"featured_media":21833,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"mc4wp_mailchimp_campaign":[],"footnotes":""},"categories":[847],"tags":[1179,1162,1166,1145],"class_list":["post-21837","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agroalimentaire","tag-artificial-intelligence-fr-2","tag-education-en-fr","tag-food-beverages-fr-2","tag-foodtech-fr-2"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>L&#039;IA pour identifier les signatures chimiques des vins 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