En apprentissage automatique et en prompt engineering, les donn\u00e9es de validation jouent un r\u00f4le crucial pour \u00e9valuer la performance d’un mod\u00e8le. Qu’est-ce que les donn\u00e9es de validation ? Ce sont des donn\u00e9es utilis\u00e9es pour affiner un mod\u00e8le d’IA pendant son entra\u00eenement et \u00e9viter le surapprentissage.<\/p>\n
Les donn\u00e9es de validation constituent un sous-ensemble des donn\u00e9es disponibles, distinct des donn\u00e9es d’entra\u00eenement et de test. Imaginez que vous pr\u00e9parez un g\u00e2teau pour un concours. Vos donn\u00e9es d’entra\u00eenement sont les essais que vous faites chez vous pour ajuster la recette. Les donn\u00e9es de validation, ce sont les retours de vos amis qui go\u00fbtent le g\u00e2teau avant le concours. Leurs commentaires vous permettent d’ajuster les derniers d\u00e9tails sans conna\u00eetre l’avis des juges (les donn\u00e9es de test). Le mod\u00e8le utilise les donn\u00e9es d’entra\u00eenement pour apprendre, puis il est test\u00e9 sur les donn\u00e9es de validation. La performance sur ces donn\u00e9es de validation permet d’ajuster les param\u00e8tres du mod\u00e8le (comme les ingr\u00e9dients du g\u00e2teau) pour optimiser ses performances.<\/p>\n
L’utilisation de donn\u00e9es de validation est essentielle pour \u00e9viter le surapprentissage. Le surapprentissage survient lorsqu’un mod\u00e8le apprend \u00ab\u00a0par c\u0153ur\u00a0\u00bb les donn\u00e9es d’entra\u00eenement et se r\u00e9v\u00e8le incapable de g\u00e9n\u00e9raliser \u00e0 de nouvelles donn\u00e9es. Reprenons l’exemple du g\u00e2teau\u00a0: si vous vous basez uniquement sur vos go\u00fbts (donn\u00e9es d’entra\u00eenement), vous risquez de cr\u00e9er un g\u00e2teau trop sp\u00e9cifique qui ne plaira pas aux juges (nouvelles donn\u00e9es). Les donn\u00e9es de validation permettent de s’assurer que le mod\u00e8le est capable de bien g\u00e9n\u00e9raliser et de performer correctement sur des donn\u00e9es qu’il n’a jamais vues auparavant. En prompt engineering, les donn\u00e9es de validation aident \u00e0 affiner les prompts pour obtenir des r\u00e9ponses plus pr\u00e9cises et pertinentes d’un mod\u00e8le de langage.<\/p>\n
En apprentissage automatique et en prompt engineering, les donn\u00e9es de validation jouent un r\u00f4le crucial pour \u00e9valuer la performance d’un mod\u00e8le. Qu’est-ce que les donn\u00e9es de validation ? Ce sont des donn\u00e9es utilis\u00e9es pour affiner un mod\u00e8le d’IA pendant son entra\u00eenement et \u00e9viter le surapprentissage. Comment fonctionnent les donn\u00e9es de validation ? Les donn\u00e9es de […]<\/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":[125,115,124,118,423,126],"class_list":["post-816","post","type-post","status-publish","format-standard","hentry","category-d","tag-donnees-dentrainement","tag-donnees-de-test","tag-donnees-de-validation","tag-evaluation-de-modele","tag-modele-dapprentissage-automatique","tag-surapprentissage"],"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, les donn\u00e9es de validation jouent un r\u00f4le crucial pour \u00e9valuer la performance d’un mod\u00e8le. Qu’est-ce que les donn\u00e9es de validation ? Ce sont des donn\u00e9es utilis\u00e9es pour affiner un mod\u00e8le d’IA pendant son entra\u00eenement et \u00e9viter le surapprentissage. Comment fonctionnent les donn\u00e9es de validation ? Les donn\u00e9es de\u2026","_links":{"self":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/816","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=816"}],"version-history":[{"count":1,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/816\/revisions"}],"predecessor-version":[{"id":957,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/816\/revisions\/957"}],"wp:attachment":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/media?parent=816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/categories?post=816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/tags?post=816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}