{"id":13599,"date":"2024-07-28T17:00:03","date_gmt":"2024-07-28T17:00:03","guid":{"rendered":"https:\/\/dailyai.com\/?p=13599"},"modified":"2024-07-29T09:48:32","modified_gmt":"2024-07-29T09:48:32","slug":"ai-models-face-collapse-when-trained-on-ai-generated-data-study-finds","status":"publish","type":"post","link":"https:\/\/dailyai.com\/da\/2024\/07\/ai-models-face-collapse-when-trained-on-ai-generated-data-study-finds\/","title":{"rendered":"AI-modeller st\u00e5r over for kollaps, n\u00e5r de tr\u00e6nes p\u00e5 AI-genererede data, viser unders\u00f8gelse"},"content":{"rendered":"<p><b>En ny unders\u00f8gelse offentliggjort i Nature afsl\u00f8rer, at AI-modeller, herunder store sprogmodeller (LLM'er), hurtigt forringes i kvalitet, n\u00e5r de tr\u00e6nes p\u00e5 data, der er genereret af tidligere AI-modeller.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Dette f\u00e6nomen, som kaldes \"modelkollaps\", kan forringe kvaliteten af fremtidige AI-modeller, is\u00e6r n\u00e5r mere AI-genereret indhold frigives p\u00e5 internettet og derfor genbruges og genanvendes i modeltr\u00e6ningsdata.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Forskere fra University of Cambridge, University of Oxford og andre institutioner unders\u00f8gte dette f\u00e6nomen. <a href=\"https:\/\/www.nature.com\/articles\/s41586-024-07566-y\">udf\u00f8rte eksperimenter<\/a> der viser, at n\u00e5r AI-modeller gentagne gange tr\u00e6nes p\u00e5 data, der er produceret af tidligere versioner af dem selv, begynder de at generere meningsl\u00f8se resultater.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dette blev observeret p\u00e5 tv\u00e6rs af forskellige typer AI-modeller, herunder sprogmodeller, variationelle autokodere og gaussiske blandingsmodeller.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I et vigtigt eksperiment med sprogmodeller finjusterede teamet OPT-125m-modellen p\u00e5 WikiText-2-datas\u00e6ttet og brugte den derefter til at generere ny tekst. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Denne AI-genererede tekst blev derefter brugt til at tr\u00e6ne den n\u00e6ste \"generation\" af modellen, og processen blev gentaget igen og igen.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det varede ikke l\u00e6nge, f\u00f8r modellerne begyndte at producere stadig mere usandsynlige og meningsl\u00f8se tekster.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I niende generation genererede modellen komplet volapyk, som f.eks. at n\u00e6vne flere ikke-eksisterende typer af \"jackrabbits\", n\u00e5r den blev spurgt om engelske kirket\u00e5rne.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Forskerne observerede ogs\u00e5, hvordan modeller mister information om \"sj\u00e6ldne\" eller sj\u00e6ldne begivenheder, f\u00f8r de kollapser helt.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dette er alarmerende, da sj\u00e6ldne begivenheder ofte vedr\u00f8rer marginaliserede grupper eller afvigere. Uden dem risikerer modeller at koncentrere deres svar p\u00e5 tv\u00e6rs af et sn\u00e6vert spektrum af ideer og overbevisninger og dermed forst\u00e6rke fordomme.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">AI-virksomheder er klar over dette, og derfor indg\u00e5r de aftaler med nyhedsfirmaer og udgivere for at sikre en j\u00e6vn str\u00f8m af menneskeskrevet, relevant information af h\u00f8j kvalitet.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Budskabet er, at vi skal v\u00e6re meget forsigtige med, hvad der ender i vores tr\u00e6ningsdata\". <\/span><span style=\"font-weight: 400;\">unders\u00f8gelse<\/span><span style=\"font-weight: 400;\"> medforfatter Zakhar Shumaylov fra University of Cambridge <\/span><a href=\"https:\/\/www.nature.com\/articles\/d41586-024-02420-7\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">fortalte naturen<\/span><\/a><span style=\"font-weight: 400;\">. \"Ellers vil det beviseligt altid g\u00e5 galt.\"<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Denne effekt forst\u00e6rkes af en nylig <\/span><a href=\"https:\/\/reutersinstitute.politics.ox.ac.uk\/how-many-news-websites-block-ai-crawlers\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">unders\u00f8gelse<\/span><\/a><span style=\"font-weight: 400;\"> af Dr. Richard Fletcher, forskningsdirekt\u00f8r ved Reuters Institute for the Study of Journalism, viste, at n\u00e6sten halvdelen (48%) af de mest popul\u00e6re nyhedssider p\u00e5 verdensplan nu er utilg\u00e6ngelige for OpenAI's crawlere, mens Googles AI-crawlere er blokeret af 24% af siderne.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Som f\u00f8lge heraf har AI-modeller adgang til en mindre pulje af nyere data af h\u00f8j kvalitet, end de havde engang, hvilket \u00f8ger risikoen for at tr\u00e6ne p\u00e5 d\u00e5rlige eller for\u00e6ldede data.\u00a0<\/span><\/p>\n<h2>L\u00f8sninger til modelkollaps<\/h2>\n<p><span style=\"font-weight: 400;\">Med hensyn til l\u00f8sninger siger forskerne, at det er afg\u00f8rende for AI's fremtid at bevare adgangen til originale, menneskeskabte datakilder.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sporing og styring af AI-genereret indhold ville ogs\u00e5 v\u00e6re nyttigt for at forhindre, at det ved et uheld forurener tr\u00e6ningsdatas\u00e6t. Det ville v\u00e6re meget vanskeligt, da AI-genereret indhold er ved at blive umuligt at opdage.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Forskerne peger p\u00e5 fire hovedl\u00f8sninger:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Vandm\u00e6rkning af AI-genereret indhold for at skelne det fra menneskeskabte data<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Skabe incitamenter for mennesker til at forts\u00e6tte med at producere indhold af h\u00f8j kvalitet<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Udvikling af mere sofistikerede filtrerings- og kurateringsmetoder til tr\u00e6ningsdata<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Udforskning af m\u00e5der at bevare og prioritere adgang til original, ikke-AI-genereret information p\u00e5<\/span><\/li>\n<\/ul>\n<h2>Modelkollaps er et reelt problem<\/h2>\n<p><span style=\"font-weight: 400;\">Denne unders\u00f8gelse er langt fra den eneste, der udforsker modelkollaps.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Det er ikke l\u00e6nge siden, at Stanford-forskere <\/span><a href=\"https:\/\/arxiv.org\/abs\/2404.01413\"><span style=\"font-weight: 400;\">sammenlignede to scenarier<\/span><\/a><span style=\"font-weight: 400;\"> hvor modelkollaps kan forekomme: en, hvor hver ny modeliterations tr\u00e6ningsdata fuldt ud erstatter de tidligere data, og en anden, hvor der tilf\u00f8jes syntetiske data til det eksisterende datas\u00e6t.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">N\u00e5r data blev udskiftet, blev modellens ydeevne hurtigt forringet p\u00e5 tv\u00e6rs af alle testede arkitekturer.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Men n\u00e5r data fik lov til at \"akkumulere\", blev modelkollaps stort set undg\u00e5et. AI-systemerne bevarede deres ydeevne og viste i nogle tilf\u00e6lde forbedringer.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">S\u00e5 p\u00e5 trods af trov\u00e6rdige bekymringer er modelkollaps ikke en given konklusion - det afh\u00e6nger af, hvor meget AI-genereret data der er i s\u00e6ttet, og forholdet mellem syntetiske og autentiske data.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hvis og n\u00e5r modelkollaps begynder at blive tydeligt i frontier-modeller, kan du v\u00e6re sikker p\u00e5, at AI-virksomhederne vil skynde sig at finde en langsigtet l\u00f8sning.\u00a0<\/span><\/p>\n<p>Vi er der ikke endnu, men det er m\u00e5ske et sp\u00f8rgsm\u00e5l om hvorn\u00e5r, ikke om.<\/p>","protected":false},"excerpt":{"rendered":"<p>En ny unders\u00f8gelse offentliggjort i Nature afsl\u00f8rer, at AI-modeller, herunder store sprogmodeller (LLM'er), hurtigt forringes i kvalitet, n\u00e5r de tr\u00e6nes p\u00e5 data, der er genereret af tidligere AI-modeller.  Dette f\u00e6nomen, som kaldes \"modelkollaps\", kan forringe kvaliteten af fremtidige AI-modeller, is\u00e6r i takt med at mere AI-genereret indhold frigives p\u00e5 internettet og derfor genbruges og genanvendes i modeltr\u00e6ningsdata.  Forskere fra University of Cambridge, University of Oxford og andre institutioner unders\u00f8gte dette f\u00e6nomen og udf\u00f8rte eksperimenter, der viste, at n\u00e5r AI-modeller gentagne gange tr\u00e6nes p\u00e5 data, der er produceret af tidligere versioner af dem selv, begynder de at generere meningsl\u00f8se outputs.  Dette var<\/p>","protected":false},"author":2,"featured_media":13600,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[105,619],"class_list":["post-13599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-machine-learning","tag-model-collapse"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AI models face collapse when trained on AI-generated data, study finds | DailyAI<\/title>\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\/07\/ai-models-face-collapse-when-trained-on-ai-generated-data-study-finds\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" 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rapidly degrade in quality when trained on data generated by previous AI models.\u00a0 This phenomenon, termed &#8220;model collapse,&#8221; could erode the quality of future AI models, particularly as more AI-generated content is released onto the internet and, therefore, recycled and reused in model training data.\u00a0 Investigating this phenomenon, researchers from the University of Cambridge, University of Oxford, and other institutions conducted experiments showing that when AI models are repeatedly trained on data produced by earlier versions of themselves, they start generating nonsensical outputs.\u00a0 This 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