{"id":200,"date":"2025-01-31T18:24:00","date_gmt":"2025-05-30T21:23:10","guid":{"rendered":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/d\/definition_data-science\/"},"modified":"2025-06-05T23:29:04","modified_gmt":"2025-06-05T21:29:04","slug":"definition-data-science","status":"publish","type":"post","link":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/d\/definition-data-science\/","title":{"rendered":"Data science"},"content":{"rendered":"<h1>La <em>data science<\/em> (science des donn\u00e9es) est un domaine crucial, notamment en intelligence artificielle et en <em>prompt engineering<\/em>.  Il s&rsquo;agit du processus d&rsquo;extraction de connaissances et de perspectives \u00e0 partir de donn\u00e9es, structur\u00e9es ou non.<\/h1>\n<h3>Comment fonctionne la data science ?<\/h3>\n<p>La <em>data science<\/em> combine plusieurs disciplines comme les statistiques, l&rsquo;informatique et la connaissance m\u00e9tier pour analyser des donn\u00e9es. Imaginez un d\u00e9tective qui rassemble des indices (donn\u00e9es) pour r\u00e9soudre une \u00e9nigme. Le <em>data scientist<\/em> fait de m\u00eame\u00a0: il collecte, nettoie, explore et mod\u00e9lise les donn\u00e9es pour en extraire des informations exploitables. Il utilise des algorithmes et des techniques d&rsquo;apprentissage automatique pour identifier des tendances, faire des pr\u00e9dictions et prendre des d\u00e9cisions \u00e9clair\u00e9es.<\/p>\n<h3>Pourquoi la data science est-elle importante\u00a0?<\/h3>\n<p>En IA, la <em>data science<\/em> est essentielle pour entra\u00eener les mod\u00e8les d&rsquo;apprentissage automatique. Plus les donn\u00e9es sont nombreuses et de qualit\u00e9, plus les mod\u00e8les seront performants. En <em>prompt engineering<\/em>, la <em>data science<\/em> permet d&rsquo;analyser les donn\u00e9es d&rsquo;interaction avec les mod\u00e8les d&rsquo;IA, d&rsquo;am\u00e9liorer la formulation des prompts et d&rsquo;optimiser les r\u00e9sultats. Par exemple, l&rsquo;analyse des donn\u00e9es peut r\u00e9v\u00e9ler quels types de prompts g\u00e9n\u00e8rent les r\u00e9ponses les plus pertinentes ou identifier les biais potentiels dans les donn\u00e9es d&rsquo;entra\u00eenement.<\/p>\n<h3>Exemples d&rsquo;utilisation de la data science<\/h3>\n<ul>\n<li><strong>Recommandation de produits\u00a0:<\/strong> Les plateformes de e-commerce utilisent la <em>data science<\/em> pour analyser l&rsquo;historique d&rsquo;achat et recommander des produits susceptibles de vous int\u00e9resser.<\/li>\n<li><strong>D\u00e9tection de fraudes\u00a0:<\/strong> Les institutions financi\u00e8res utilisent la <em>data science<\/em> pour identifier les transactions suspectes et pr\u00e9venir les fraudes.<\/li>\n<li><strong>M\u00e9decine personnalis\u00e9e\u00a0:<\/strong> La <em>data science<\/em> permet d&rsquo;analyser les donn\u00e9es m\u00e9dicales des patients pour proposer des traitements personnalis\u00e9s.<\/li>\n<\/ul>\n<h3>Termes associ\u00e9s<\/h3>\n<ul id=\"TermesAssocies\">\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Apprentissage+automatique+%28%2AMachine+Learning%2A%29\">Apprentissage automatique (*Machine Learning*)<\/a><\/li>\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Intelligence+artificielle\">Intelligence artificielle<\/a><\/li>\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=%2ABig+data%2A\">*Big data*<\/a><\/li>\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Analyse+pr%C3%A9dictive\">Analyse pr\u00e9dictive<\/a><\/li>\n<li><a href=\"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/?s=Statistiques\">Statistiques<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>La data science (science des donn\u00e9es) est un domaine crucial, notamment en intelligence artificielle et en prompt engineering. Il s&rsquo;agit du processus d&rsquo;extraction de connaissances et de perspectives \u00e0 partir de donn\u00e9es, structur\u00e9es ou non. Comment fonctionne la data science ? La data science combine plusieurs disciplines comme les statistiques, l&rsquo;informatique et la connaissance m\u00e9tier [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[49],"tags":[55,16,56,54,57,58],"class_list":["post-200","post","type-post","status-publish","format-standard","hentry","category-d","tag-analyse-predictive","tag-apprentissage-automatique-machine-learning","tag-big-data","tag-data-science","tag-intelligence-artificielle","tag-statistiques"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"","author_link":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"La data science (science des donn\u00e9es) est un domaine crucial, notamment en intelligence artificielle et en prompt engineering. Il s&rsquo;agit du processus d&rsquo;extraction de connaissances et de perspectives \u00e0 partir de donn\u00e9es, structur\u00e9es ou non. Comment fonctionne la data science ? La data science combine plusieurs disciplines comme les statistiques, l&rsquo;informatique et la connaissance m\u00e9tier\u2026","_links":{"self":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/comments?post=200"}],"version-history":[{"count":2,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/200\/revisions"}],"predecessor-version":[{"id":604,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/200\/revisions\/604"}],"wp:attachment":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/media?parent=200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/categories?post=200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/tags?post=200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}