En apprentissage automatique et en prompt engineering, la variable cible est l’\u00e9l\u00e9ment que vous essayez de pr\u00e9dire ou de contr\u00f4ler. Qu\u2019est-ce que la variable cible ? C’est la valeur que votre mod\u00e8le d’IA cherche \u00e0 apprendre \u00e0 pr\u00e9dire avec pr\u00e9cision.<\/p>\n
Imaginez que vous essayez d’apprendre \u00e0 un chien \u00e0 s’asseoir. Votre commande \u00ab\u00a0Assis !\u00a0\u00bb est l’entr\u00e9e (le prompt), et l’action du chien de s’asseoir est la variable cible. Vous voulez que le chien apprenne \u00e0 associer votre commande \u00e0 l’action sp\u00e9cifique de s’asseoir. De m\u00eame, en IA, la variable cible est ce que vous voulez que le mod\u00e8le pr\u00e9dise en fonction des donn\u00e9es d’entr\u00e9e que vous lui fournissez. Si vous construisez un mod\u00e8le pour pr\u00e9dire le prix des maisons, le prix de la maison est votre variable cible, et les caract\u00e9ristiques de la maison (taille, emplacement, nombre de chambres, etc.) sont vos donn\u00e9es d’entr\u00e9e.<\/p>\n
La variable cible est essentielle car elle d\u00e9finit l’objectif de votre mod\u00e8le d’IA. Sans une variable cible clairement d\u00e9finie, votre mod\u00e8le ne saura pas ce qu’il doit apprendre. Dans l’exemple de pr\u00e9diction du prix des maisons, si vous ne sp\u00e9cifiez pas le prix comme variable cible, le mod\u00e8le pourrait essayer de pr\u00e9dire autre chose, comme la couleur de la maison ou l’ann\u00e9e de construction, ce qui ne serait pas utile pour votre objectif. En prompt engineering, la variable cible peut \u00eatre plus subtile. Par exemple, si vous demandez \u00e0 une IA de g\u00e9n\u00e9rer un po\u00e8me, la variable cible n’est pas une valeur num\u00e9rique mais plut\u00f4t les caract\u00e9ristiques du po\u00e8me, comme le style, le ton et le sujet. Vous guidez l’IA vers la variable cible souhait\u00e9e en affinant votre prompt.<\/p>\n
En apprentissage automatique et en prompt engineering, la variable cible est l’\u00e9l\u00e9ment que vous essayez de pr\u00e9dire ou de contr\u00f4ler. Qu\u2019est-ce que la variable cible ? C’est la valeur que votre mod\u00e8le d’IA cherche \u00e0 apprendre \u00e0 pr\u00e9dire avec pr\u00e9cision. Comment fonctionne la variable cible ? Imaginez que vous essayez d’apprendre \u00e0 un chien \u00e0 […]<\/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":[183],"tags":[138,125,423,133,12,132],"class_list":["post-875","post","type-post","status-publish","format-standard","hentry","category-v","tag-algorithme","tag-donnees-dentrainement","tag-modele-dapprentissage-automatique","tag-prediction","tag-prompt-engineering","tag-variable-cible"],"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":"En apprentissage automatique et en prompt engineering, la variable cible est l’\u00e9l\u00e9ment que vous essayez de pr\u00e9dire ou de contr\u00f4ler. Qu\u2019est-ce que la variable cible ? C’est la valeur que votre mod\u00e8le d’IA cherche \u00e0 apprendre \u00e0 pr\u00e9dire avec pr\u00e9cision. Comment fonctionne la variable cible ? Imaginez que vous essayez d’apprendre \u00e0 un chien \u00e0\u2026","_links":{"self":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/875","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=875"}],"version-history":[{"count":1,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/875\/revisions"}],"predecessor-version":[{"id":1043,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/875\/revisions\/1043"}],"wp:attachment":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/media?parent=875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/categories?post=875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/tags?post=875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}