{"id":10463,"date":"2024-03-03T13:13:38","date_gmt":"2024-03-03T13:13:38","guid":{"rendered":"https:\/\/dailyai.com\/?p=10463"},"modified":"2024-03-04T11:18:19","modified_gmt":"2024-03-04T11:18:19","slug":"researchers-use-machine-learning-to-copy-and-replicate-fragrances","status":"publish","type":"post","link":"https:\/\/dailyai.com\/fr\/2024\/03\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\/","title":{"rendered":"Des chercheurs utilisent l'apprentissage automatique pour copier et reproduire des parfums"},"content":{"rendered":"

L'IA modifie notre fa\u00e7on d'envisager la pr\u00e9servation des senteurs, ce qui pourrait permettre de sauver des parfums rares sur le point de dispara\u00eetre.\u00a0<\/b><\/p>\n

Idelfonso Nogueira et son \u00e9quipe de l'universit\u00e9 norv\u00e9gienne des sciences et technologies ont d\u00e9montr\u00e9 que l'IA pouvait \u00e9laborer des formules pour recr\u00e9er des parfums.<\/span><\/p>\n

Les \u00e9tude<\/a> consiste \u00e0 \u00e9tablir le profil des parfums en fonction de leur \"famille olfactive\" - des termes descriptifs tels que \"\u00e9pic\u00e9\" ou \"musc\" - et de leur \"valeur olfactive\", qui mesure l'intensit\u00e9 de l'odeur.\u00a0<\/span><\/p>\n

Par exemple, ils ont trouv\u00e9 un parfum avec une valeur olfactive \u00e9lev\u00e9e pour \"coumarinique\" (rappelant la vanille) et un autre qui \u00e9tait notamment \"alcoolique\".\u00a0<\/span><\/p>\n

Les chercheurs ont l'intention d'utiliser ce processus pour pr\u00e9server des odeurs obscures et rares - comme celles obtenues dans des environnements naturels changeants ou des plantes en voie d'extinction - en les reproduisant \u00e0 partir d'un seul \u00e9chantillon.<\/span><\/p>\n

Elle pourrait \u00e9galement permettre un processus efficace et reproductible de cr\u00e9ation de parfums, une t\u00e2che qui n\u00e9cessite g\u00e9n\u00e9ralement des essais et des erreurs consid\u00e9rables.\u00a0<\/span><\/p>\n

Ventilation de la m\u00e9thodologie<\/h2>\n

La premi\u00e8re \u00e9tape consiste \u00e0 analyser les parfums cibles pour comprendre leurs profils olfactifs, y compris leurs familles de senteurs (comme \"\u00e9pic\u00e9\" ou \"musc\") et leur intensit\u00e9.\u00a0<\/span><\/p>\n

Ensuite, \u00e0 l'aide d'un r\u00e9seau neuronal graphique \u00e0 portes (GGNN) form\u00e9 sur une vaste base de donn\u00e9es de mol\u00e9cules, l'\u00e9quipe g\u00e9n\u00e8re de nouvelles mol\u00e9cules qui pourraient potentiellement reproduire le parfum cibl\u00e9.\u00a0<\/span><\/p>\n

\"Senteur
La m\u00e9thodologie de l'\u00e9tude. La source : Via ArXiv<\/a><\/figcaption><\/figure>\n

Ce processus comporte deux phases : l'entra\u00eenement du GGNN avec des mol\u00e9cules connues pour apprendre la relation entre les structures mol\u00e9culaires et leurs odeurs, puis la g\u00e9n\u00e9ration de nouvelles mol\u00e9cules qui correspondent au profil olfactif souhait\u00e9 gr\u00e2ce \u00e0 l'apprentissage par transfert.<\/span><\/p>\n

Nogueira explique que la perception de l'odeur change en raison des interactions physiques et chimiques que les mol\u00e9cules subissent avec l'air ou la peau.\u00a0<\/span>Pour reproduire fid\u00e8lement les senteurs originales, ils ont s\u00e9lectionn\u00e9 des mol\u00e9cules g\u00e9n\u00e9r\u00e9es par l'IA qui s'\u00e9vaporent de la m\u00eame mani\u00e8re que celles des parfums originaux, relevant ainsi le d\u00e9fi de capturer la nature \u00e9ph\u00e9m\u00e8re des \"notes de t\u00eate\" et la long\u00e9vit\u00e9 des \"notes de fond\".<\/span><\/p>\n

Apr\u00e8s avoir g\u00e9n\u00e9r\u00e9 une s\u00e9rie de mol\u00e9cules, l'\u00e9quipe s\u00e9lectionne celles qui correspondent le mieux au profil olfactif du parfum cible en fonction de leur pression de vapeur et de leurs notes parfum\u00e9es.\u00a0<\/span><\/p>\n

La derni\u00e8re \u00e9tape consiste \u00e0 optimiser la formulation du parfum pour qu'elle corresponde \u00e0 la senteur originale. Ce processus prend en compte l'intensit\u00e9 des diff\u00e9rentes familles de senteurs pr\u00e9sentes dans le parfum et ajuste la composition mol\u00e9culaire du parfum en cons\u00e9quence.<\/span><\/p>\n

L'un des parfums produits selon cette m\u00e9thode reproduisait fid\u00e8lement l'original, avec de l\u00e9g\u00e8res d\u00e9viations dans ses notes \"coumariniques\" et \"piquantes\". L'autre \u00e9tait presque identique.\u00a0<\/span><\/p>\n

Les auteurs sugg\u00e8rent que l'\u00e9largissement de la base de donn\u00e9es \u00e0 des mol\u00e9cules plus complexes pourrait am\u00e9liorer la pr\u00e9cision de ces parfums g\u00e9n\u00e9r\u00e9s par l'IA, offrant ainsi une solution moins co\u00fbteuse et plus durable \u00e0 l'industrie de la parfumerie, qui doit actuellement faire face \u00e0 des co\u00fbts \u00e9lev\u00e9s et \u00e0 de longs d\u00e9lais de d\u00e9veloppement.<\/span><\/p>\n

M. Nogueira s'appr\u00eate \u00e0 tester davantage la technologie en d\u00e9couvrant directement certains des parfums g\u00e9n\u00e9r\u00e9s par l'IA dans le laboratoire d'un coll\u00e8gue \u00e0 Ljubljana, en Slov\u00e9nie. <\/span>\"Je suis tr\u00e8s enthousiaste \u00e0 l'id\u00e9e de les sentir\", d\u00e9clare-t-il.<\/span><\/p>\n

L'IA a de nombreuses utilisations nouvelles dans des applications moins suspectes, comme lorsque des chercheurs ont utilis\u00e9 des r\u00e9seaux neuronaux pour g\u00e9olocaliser des personnes. les profils de saveurs uniques du vin<\/a> pour \u00e9clairer la base chimique du terroir.<\/p>","protected":false},"excerpt":{"rendered":"

L'IA modifie notre fa\u00e7on d'envisager la pr\u00e9servation des senteurs, ce qui pourrait permettre de sauver des parfums rares sur le point de dispara\u00eetre. Idelfonso Nogueira et son \u00e9quipe de l'universit\u00e9 norv\u00e9gienne des sciences et technologies ont d\u00e9montr\u00e9 que l'IA pouvait \u00e9laborer des formules pour recr\u00e9er des parfums. L'\u00e9tude consiste \u00e0 \u00e9tablir le profil des parfums en fonction de leur \"famille d'odeurs\" - des termes descriptifs tels que \"\u00e9pic\u00e9\" ou \"musc\" - et de leur \"valeur odorante\", qui mesure l'intensit\u00e9 d'une odeur. Par exemple, ils ont trouv\u00e9 un parfum avec une valeur olfactive \u00e9lev\u00e9e pour \"coumarinique\" (rappelant la vanille) et un autre qui \u00e9tait notamment \"alcoolique\". Les chercheurs ont l'intention d'utiliser ce proc\u00e9d\u00e9 pour conserver les<\/p>","protected":false},"author":2,"featured_media":10465,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[105],"class_list":["post-10463","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethics","tag-machine-learning"],"yoast_head":"\nResearchers use machine learning to copy and replicate fragrances | DailyAI<\/title>\n<meta name=\"description\" content=\"AI is changing how we think about preserving scents, potentially rescuing rare fragrances that are on the brink of disappearing.\u00a0\" \/>\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\/2024\/03\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\/\" \/>\n<meta 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