Imaginez un m\u00e9decin qui pose un diagnostic. Il vous interroge sur vos sympt\u00f4mes, analyse vos r\u00e9ponses, puis utilise ses connaissances m\u00e9dicales pour identifier la maladie. Un syst\u00e8me expert fonctionne de mani\u00e8re similaire en informatique. Qu’est-ce qu’un syst\u00e8me expert ? C’est un programme informatique con\u00e7u pour imiter les capacit\u00e9s de prise de d\u00e9cision d’un expert humain dans un domaine sp\u00e9cifique.<\/p>\n
Un syst\u00e8me expert s’appuie sur une base de connaissances, un ensemble de r\u00e8gles et un moteur d’inf\u00e9rence. La base de connaissances contient des faits et des informations sur le domaine d’expertise, comme les sympt\u00f4mes et les maladies en m\u00e9decine. Les r\u00e8gles de d\u00e9cision, quant \u00e0 elles, permettent au syst\u00e8me de raisonner et de tirer des conclusions \u00e0 partir des faits et des donn\u00e9es d’entr\u00e9e. Le moteur d’inf\u00e9rence est le cerveau du syst\u00e8me. Il utilise les r\u00e8gles pour analyser les informations et fournir des r\u00e9ponses, des diagnostics ou des recommandations. Reprenons l’exemple du m\u00e9decin\u00a0: sa base de connaissances est l’ensemble de ses \u00e9tudes m\u00e9dicales, les r\u00e8gles sont les liens entre sympt\u00f4mes et maladies, et le moteur d’inf\u00e9rence est son raisonnement pour poser un diagnostic.<\/p>\n
En IA et en prompt engineering, les syst\u00e8mes experts peuvent automatiser des t\u00e2ches complexes, aider \u00e0 la prise de d\u00e9cision et am\u00e9liorer la qualit\u00e9 des r\u00e9sultats. Par exemple, un syst\u00e8me expert peut \u00eatre utilis\u00e9 pour g\u00e9n\u00e9rer des prompts plus pr\u00e9cis et efficaces pour les mod\u00e8les de langage, ou encore pour analyser les r\u00e9ponses de ces mod\u00e8les et en extraire des informations pertinentes. Imaginez un syst\u00e8me expert qui aide \u00e0 r\u00e9diger des prompts pour la g\u00e9n\u00e9ration d’images\u00a0: il pourrait sugg\u00e9rer les bons mots-cl\u00e9s, les styles artistiques appropri\u00e9s et les param\u00e8tres optimaux pour obtenir l’image souhait\u00e9e.<\/p>\n
Imaginez un m\u00e9decin qui pose un diagnostic. Il vous interroge sur vos sympt\u00f4mes, analyse vos r\u00e9ponses, puis utilise ses connaissances m\u00e9dicales pour identifier la maladie. Un syst\u00e8me expert fonctionne de mani\u00e8re similaire en informatique. Qu’est-ce qu’un syst\u00e8me expert ? C’est un programme informatique con\u00e7u pour imiter les capacit\u00e9s de prise de d\u00e9cision d’un expert humain […]<\/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":[94],"tags":[44,254,57,255,12,253],"class_list":["post-278","post","type-post","status-publish","format-standard","hentry","category-s","tag-apprentissage-automatique","tag-base-de-connaissances","tag-intelligence-artificielle","tag-moteur-dinference","tag-prompt-engineering","tag-systeme-expert"],"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":"Imaginez un m\u00e9decin qui pose un diagnostic. Il vous interroge sur vos sympt\u00f4mes, analyse vos r\u00e9ponses, puis utilise ses connaissances m\u00e9dicales pour identifier la maladie. Un syst\u00e8me expert fonctionne de mani\u00e8re similaire en informatique. Qu’est-ce qu’un syst\u00e8me expert ? C’est un programme informatique con\u00e7u pour imiter les capacit\u00e9s de prise de d\u00e9cision d’un expert humain\u2026","_links":{"self":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/278","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=278"}],"version-history":[{"count":1,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/278\/revisions"}],"predecessor-version":[{"id":454,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/posts\/278\/revisions\/454"}],"wp:attachment":[{"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/media?parent=278"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/categories?post=278"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/happynumeric.com\/lexique-intelligence-artificielle\/wp-json\/wp\/v2\/tags?post=278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}