{"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\/da\/2024\/03\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\/","title":{"rendered":"Forskere bruger maskinl\u00e6ring til at kopiere og genskabe dufte"},"content":{"rendered":"<p><b>AI \u00e6ndrer den m\u00e5de, vi t\u00e6nker p\u00e5 at bevare dufte p\u00e5, og kan potentielt redde sj\u00e6ldne dufte, der er p\u00e5 randen af at forsvinde.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Idelfonso Nogueira og hans team ved Norges teknisk-naturvidenskabelige universitet viste, at kunstig intelligens kunne skabe formler, der kunne genskabe parfumer.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Den <a href=\"https:\/\/arxiv.org\/ftp\/arxiv\/papers\/2402\/2402.12134.pdf\" target=\"_blank\" rel=\"noopener\">unders\u00f8gelse<\/a> involverer profilering af dufte efter deres \"duftfamilie\" - beskrivende termer som \"krydret\" eller \"moskus\" - og deres \"lugtv\u00e6rdi\", som m\u00e5ler en dufts intensitet.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">For eksempel fandt de en duft med en h\u00f8j lugtv\u00e6rdi for \"coumarinic\" (minder om vanilje) og en anden, der var s\u00e6rlig \"alkoholisk\".\u00a0<\/span><\/p>\n<p>Forskerne vil bruge denne proces til at<span style=\"font-weight: 400;\"> bevare obskure og sj\u00e6ldne lugte - som dem, der stammer fra skiftende naturlige milj\u00f8er eller planter p\u00e5 randen af udryddelse - ved at genskabe dem fra en enkelt pr\u00f8ve.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det kunne ogs\u00e5 muligg\u00f8re en effektiv, reproducerbar proces til at skabe parfumer, en opgave, der typisk kr\u00e6ver mange fors\u00f8g og fejl.\u00a0<\/span><\/p>\n<h2>Opdeling af metoder<\/h2>\n<p><span style=\"font-weight: 400;\">Det f\u00f8rste skridt er at analysere m\u00e5lduftene for at forst\u00e5 deres duftprofiler, herunder deres duftfamilier (som \"krydret\" eller \"moskus\") og deres intensitet.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ved hj\u00e6lp af et Gated Graph Neural Network (GGNN), der er tr\u00e6net p\u00e5 en stor database med molekyler, genererer teamet derefter nye molekyler, der potentielt kan replikere m\u00e5lduften.\u00a0<\/span><\/p>\n<figure id=\"attachment_10464\" aria-describedby=\"caption-attachment-10464\" style=\"width: 750px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10464\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent.png\" alt=\"AI-duft\" width=\"750\" height=\"648\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent.png 945w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent-300x259.png 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent-768x664.png 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent-370x320.png 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent-800x692.png 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent-20x17.png 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent-740x640.png 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/methodscent-56x48.png 56w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-10464\" class=\"wp-caption-text\">Unders\u00f8gelsens metode. Kilde: Via <a href=\"https:\/\/arxiv.org\/ftp\/arxiv\/papers\/2402\/2402.12134.pdf\">ArXiv<\/a><\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Denne proces involverer to faser: tr\u00e6ning af GGNN med kendte molekyler for at l\u00e6re forholdet mellem molekyl\u00e6re strukturer og deres dufte og derefter generering af nye molekyler, der matcher den \u00f8nskede duftprofil gennem transfer learning.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Nogueira forklarer, at opfattelsen af lugt \u00e6ndrer sig p\u00e5 grund af de fysiske og kemiske interaktioner, som molekylerne gennemg\u00e5r med luft eller hud.\u00a0<\/span><span style=\"font-weight: 400;\">For at genskabe de originale dufte n\u00f8jagtigt valgte de AI-genererede molekyler, der fordampede p\u00e5 samme m\u00e5de som dem i de originale dufte, og l\u00f8ste udfordringen med at indfange \"topnoternes\" flygtige natur og \"bundnoternes\" lange holdbarhed.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Efter at have genereret en r\u00e6kke molekyler v\u00e6lger teamet dem, der bedst matcher m\u00e5lduftens duftprofil baseret p\u00e5 deres damptryk og duftnoter.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Den sidste fase best\u00e5r i at optimere parfumeformuleringen, s\u00e5 den matcher den oprindelige duft. Denne proces tager h\u00f8jde for intensiteten af de forskellige duftfamilier i duften og justerer duftens molekyl\u00e6re sammens\u00e6tning i overensstemmelse hermed.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En af de dufte, der blev fremstillet med denne metode, var en n\u00f8je kopi af originalen med mindre afvigelser i de \"kumarinagtige\" og \"skarpe\" noter. Den anden var n\u00e6sten et n\u00f8jagtigt match.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Forfatterne foresl\u00e5r, at en udvidelse af databasen til at omfatte mere komplekse molekyler kan forbedre n\u00f8jagtigheden af disse AI-genererede dufte og tilbyde en billigere og mere b\u00e6redygtig l\u00f8sning til parfumeindustrien, som i \u00f8jeblikket st\u00e5r over for h\u00f8je omkostninger og lange udviklingstider.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Nogueira er klar til at teste teknologien yderligere ved at opleve nogle af de AI-genererede dufte p\u00e5 f\u00f8rste h\u00e5nd i en kollegas laboratorium i Ljubljana, Slovenien. <\/span><span style=\"font-weight: 400;\">\"Jeg er meget sp\u00e6ndt p\u00e5 at lugte til dem,\" siger han.<\/span><\/p>\n<p>AI har mange nye anvendelser i mindre mist\u00e6nkelige applikationer, som f.eks. da forskere brugte neurale netv\u00e6rk til at geolokalisere <a href=\"https:\/\/dailyai.com\/da\/2023\/12\/machine-learning-deciphers-bordeaux-wine-origins-with-incredible-accuracy\/\">vinens unikke smagsprofiler<\/a> for at belyse det kemiske grundlag for terroir.<\/p>","protected":false},"excerpt":{"rendered":"<p>AI \u00e6ndrer den m\u00e5de, vi t\u00e6nker p\u00e5 at bevare dufte, og kan potentielt redde sj\u00e6ldne dufte, der er ved at forsvinde.  Idelfonso Nogueira og hans team ved Norges teknisk-naturvidenskabelige universitet har vist, at kunstig intelligens kan skabe formler til at genskabe parfumer. Unders\u00f8gelsen involverer profilering af dufte efter deres \"duftfamilie\" - beskrivende termer som \"krydret\" eller \"moskus\" - og deres \"lugtv\u00e6rdi\", som m\u00e5ler en lugts intensitet.  For eksempel fandt de en duft med en h\u00f8j lugtv\u00e6rdi for \"kumarin\" (minder om vanilje) og en anden, der var s\u00e6rlig \"alkoholisk\".  Forskerne har til hensigt at bruge denne proces til at bevare<\/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":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Researchers 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\/da\/2024\/03\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Researchers use machine learning to copy and replicate fragrances | DailyAI\" \/>\n<meta property=\"og: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 property=\"og:url\" content=\"https:\/\/dailyai.com\/da\/2024\/03\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-03T13:13:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-04T11:18:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/03\/shutterstock_677981779.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"658\" \/>\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=\"Skrevet af\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sam Jeans\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimeret l\u00e6setid\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutter\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/2024\\\/03\\\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2024\\\/03\\\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\\\/\"},\"author\":{\"name\":\"Sam Jeans\",\"@id\":\"https:\\\/\\\/dailyai.com\\\/#\\\/schema\\\/person\\\/711e81f945549438e8bbc579efdeb3c9\"},\"headline\":\"Researchers use machine learning to copy and replicate fragrances\",\"datePublished\":\"2024-03-03T13:13:38+00:00\",\"dateModified\":\"2024-03-04T11:18:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2024\\\/03\\\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\\\/\"},\"wordCount\":501,\"publisher\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/dailyai.com\\\/2024\\\/03\\\/researchers-use-machine-learning-to-copy-and-replicate-fragrances\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/dailyai.com\\\/wp-content\\\/uploads\\\/2024\\\/03\\\/shutterstock_677981779.jpg\",\"keywords\":[\"machine learning\"],\"articleSection\":[\"Ethics &amp; 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