{"id":13966,"date":"2023-09-05T15:20:35","date_gmt":"2023-09-05T13:20:35","guid":{"rendered":"https:\/\/optimix.fr\/?p=13966"},"modified":"2025-02-24T16:56:57","modified_gmt":"2025-02-24T15:56:57","slug":"evolution-du-forecasting","status":"publish","type":"post","link":"https:\/\/preprod.optimix-software.com\/fr\/blog\/supplychain\/evolution-du-forecasting\/","title":{"rendered":"\u00c9volution du forecasting : des m\u00e9thodes statistiques vers le deep learning"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13966\" class=\"elementor elementor-13966\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4358ac1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4358ac1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c7e1abd\" data-id=\"c7e1abd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-40ff6f8 elementor-widget elementor-widget-text-editor\" data-id=\"40ff6f8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Au fil des ans, la <a href=\"https:\/\/preprod.optimix-software.com\/fr\/solution-supply-chain\/prevision-des-ventes\/\">pr\u00e9vision de la supply chain<\/a> a consid\u00e9rablement chang\u00e9, passant des m\u00e9thodes statistiques classiques au deep learning avanc\u00e9.<\/p><p>Face \u00e0 la complexit\u00e9 croissante de la demande et de l&rsquo;approvisionnement, cette \u00e9volution s&rsquo;est av\u00e9r\u00e9e n\u00e9cessaire pour tirer pleinement parti des nombreuses donn\u00e9es disponibles.<\/p><p>Nous aborderons, dans cet article, l&rsquo;\u00e9volution des pr\u00e9visions, en nous concentrant sur les m\u00e9thodes traditionnelles, les r\u00e9seaux de neurones et les derni\u00e8res avanc\u00e9es du deep learning.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8dabd42 elementor-widget elementor-widget-spacer\" data-id=\"8dabd42\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-144057a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"144057a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cfc3546\" data-id=\"cfc3546\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9029449 elementor-widget elementor-widget-heading\" data-id=\"9029449\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Les m\u00e9thodes statistiques (toujours viables, rapides, mais moins puissantes)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e3b3b3c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e3b3b3c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0483a52\" data-id=\"0483a52\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2e67e79 elementor-widget elementor-widget-text-editor\" data-id=\"2e67e79\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Depuis des ann\u00e9es, le domaine de la pr\u00e9vision a connu de vastes \u00e9volutions. Des journaux du milieu du 19\u00e8me si\u00e8cle \u00e9voquent d\u00e9j\u00e0 le forecast. Sans la technologie moderne, les sp\u00e9cialistes s&rsquo;appuyaient principalement sur des techniques statistiques. Bien qu&rsquo;affin\u00e9es au fil des ann\u00e9es, ces techniques demeurent pertinentes.<\/p><p>Parmi les outils fr\u00e9quemment employ\u00e9s, citons les mod\u00e8les <a href=\"https:\/\/labs.ivoiretalents.com\/news\/series-temporelles-sarima-pour-initiation-aux-predictions-temporelles-2\">(S)ARIMA<\/a>, les m\u00e9thodes de Holt et Holt-Winters.<\/p><p>Ces approches, gr\u00e2ce \u00e0 des \u00e9quations plut\u00f4t simples, fournissent des estimations solides en s&rsquo;appuyant sur des donn\u00e9es de vente pass\u00e9es. Elles permettent de d\u00e9celer des mouvements saisonniers.<\/p><p>Le principal atout de ces approches r\u00e9side dans leur mise en application directe et leur clart\u00e9. Ces approches sont sp\u00e9cifiques et s&rsquo;adaptent \u00e0 diff\u00e9rents types de donn\u00e9es de vente. Progressivement, elles ont su s&rsquo;adapter aux innovations technologiques, optimisant ainsi l&rsquo;exploitation des informations.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41d23a1 elementor-widget elementor-widget-spacer\" data-id=\"41d23a1\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca85f44 elementor-widget elementor-widget-heading\" data-id=\"ca85f44\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Et pour les professionnels ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e546384 elementor-widget elementor-widget-text-editor\" data-id=\"e546384\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Aujourd&rsquo;hui, de nombreux experts font appel \u00e0 ces techniques. Face \u00e0 certains types de donn\u00e9es, elles peuvent concurrencer le machine learning, notamment lorsqu&rsquo;elles sont combin\u00e9es.<\/p><p>Toutefois, ces techniques statistiques pr\u00e9sentent des contraintes. Souvent, elles n\u00e9gligent des \u00e9l\u00e9ments externes, tels que les pr\u00e9visions m\u00e9t\u00e9orologiques. Leur focus principal reste les historiques de vente.<\/p><p>Bien qu&rsquo;encore populaires, le deep learning commence \u00e0 les supplanter. Ce dernier traite des probl\u00e9matiques pr\u00e9visionnelles plus sophistiqu\u00e9es en supply chain.<\/p><p>Cependant, dans des situations simples et face \u00e0 des donn\u00e9es moins \u00e9labor\u00e9es, leur pertinence demeure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-1fc14bb e-flex e-con-boxed e-con e-parent\" data-id=\"1fc14bb\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0667d36 elementor-widget elementor-widget-html\" data-id=\"0667d36\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"hs-cta-embed hs-cta-simple-placeholder hs-cta-embed-211436237037\"\r\n  style=\"max-width:100%; max-height:100%; width:600px;height:250px\" data-hubspot-wrapper-cta-id=\"211436237037\">\r\n  <a href=\"https:\/\/cta-eu1.hubspot.com\/web-interactives\/public\/v1\/track\/redirect?encryptedPayload=AVxigLLU4RQ238cCtvPGfoXIaM3mbr4BiChqHgGT2lqum0byxKcLgNEeTSrrRd5%2FiAMPkeMJIpecUAB5PTKFSsRobVtec6J9gTM2ThBu%2Bq5oEQgWDJIH%2BP6w4tlF08Mrzj0SyadoJpr9N1iaz7prmxbFFLa0N8ieo8kCpipp9ahJ4Sjag%2BLaWyMvLU2yl6rzdP5NYCSjyRLbpbzEM9V4OzcTvQgJwnmdmf47vlzo14pNOw3bNFiNtSaad3Px2iE5nxOpD%2F8%3D&webInteractiveContentId=211436237037&portalId=144414462\" target=\"_blank\" rel=\"noopener\" crossorigin=\"anonymous\">\r\n    <img decoding=\"async\" alt=\"logo optimix 2025 blanc site-web copie\" loading=\"lazy\" src=\"https:\/\/hubspot-no-cache-eu1-prod.s3.amazonaws.com\/cta\/default\/144414462\/interactive-211436237037.png\" style=\"height: 100%; width: 100%; object-fit: fill\"\r\n      onerror=\"this.style.display='none'\" \/>\r\n  <\/a>\r\n<\/div>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8c2e41b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8c2e41b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-afc5b44\" data-id=\"afc5b44\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2f96212 elementor-widget elementor-widget-heading\" data-id=\"2f96212\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">L\u2019av\u00e8nement des r\u00e9seaux de neurones (Long-Short-Term-Memory, Gated Recurrent Unit)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-208ffb6 elementor-widget elementor-widget-spacer\" data-id=\"208ffb6\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9910492 elementor-widget elementor-widget-text-editor\" data-id=\"9910492\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>Les Long Short-Term Memory<\/b>\u00a0(LSTM) et\u00a0<b>les Gated Recurrent Units<\/b>\u00a0(GRU) reposent sur des architectures de r\u00e9seaux de neurones.\u00a0<\/p><p>En raison d&rsquo;une capacit\u00e9 de calcul initialement limit\u00e9e, les r\u00e9seaux de neurones \u00e9taient mis de c\u00f4t\u00e9. Toutefois, vers 2016-2017, l&rsquo;\u00e9mergence des\u00a0<span style=\"text-align: var(--text-align); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: var( --e-global-typography-text-font-size ); font-weight: var( --e-global-typography-text-font-weight );\">r\u00e9seau neuronal convolutif<\/span><span style=\"text-align: var(--text-align); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: var( --e-global-typography-text-font-size ); font-weight: var( --e-global-typography-text-font-weight );\">\u00a0renouvelle l&rsquo;int\u00e9r\u00eat pour eux. Pour d\u00e9tecter des motifs dans les images et les classer, on a d\u00e9velopp\u00e9 un r\u00e9seau neuronal convolutif. Ensuite, les sp\u00e9cialistes ont adapt\u00e9 ces\u00a0<\/span>r\u00e9seaux neuronal convolutif<span style=\"text-align: var(--text-align); color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: var( --e-global-typography-text-font-size ); font-weight: var( --e-global-typography-text-font-weight );\">\u00a0pour les s\u00e9ries temporelles, ce qui a ouvert la voie \u00e0 leur utilisation en forecasting.<\/span><\/p><p>Ces mod\u00e8les d\u00e9tectent les motifs complexes en identifiant les liens entre \u00e9v\u00e9nements r\u00e9cents et pass\u00e9s.<\/p><p>L&rsquo;apprentissage supervis\u00e9 est le principe fondamental de ces technologies. On entra\u00eene le r\u00e9seau sur des donn\u00e9es historiques pour faire des pr\u00e9dictions futures. Le but est d&rsquo;ajuster les connexions des r\u00e9seaux en fonction de la justesse de leurs pr\u00e9dictions pour minimiser les erreurs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a0db68d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a0db68d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-95848d9\" data-id=\"95848d9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-35b2fe0 elementor-widget elementor-widget-heading\" data-id=\"35b2fe0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Les m\u00e9thodes r\u00e9centes (DeepAR, N-BEATS, ... )<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8a1745c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8a1745c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3ed0337\" data-id=\"3ed0337\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3c10153 elementor-widget elementor-widget-spacer\" data-id=\"3c10153\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-400cd87 elementor-widget elementor-widget-spacer\" data-id=\"400cd87\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c419da elementor-widget elementor-widget-text-editor\" data-id=\"7c419da\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Alors que le deep learning devient de plus en plus courant, des techniques innovantes apparaissent pour traiter des pr\u00e9visions complexes.<\/p><p>L&rsquo;architecture <a href=\"https:\/\/docs.aws.amazon.com\/fr_fr\/forecast\/latest\/dg\/aws-forecast-recipe-deeparplus.html\">DeepAR<\/a>, lanc\u00e9e par Amazon en 2017, est un exemple notable de ces nouvelles techniques pour la supply chain. Utilisant les r\u00e9seaux de neurones r\u00e9currents (RNN), le DeepAR emploie une approche probabiliste pour anticiper les valeurs \u00e0 venir. L&rsquo;avantage majeur est la fourniture d&rsquo;intervalles de confiance, essentiels pour d\u00e9cider dans des contextes volatils.<\/p><p>L&rsquo;un des atouts majeurs de DeepAR r\u00e9side dans sa capacit\u00e9 \u00e0 effectuer des pr\u00e9dictions sans normalisation pr\u00e9alable des donn\u00e9es. Il g\u00e8re ainsi diff\u00e9rents types de s\u00e9ries temporelles, ce qui est crucial en supply chain. De plus, il offre des pr\u00e9visions pr\u00e9cises m\u00eame quand l&rsquo;historique des produits est limit\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-250fea1 elementor-widget elementor-widget-text-editor\" data-id=\"250fea1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Il s&rsquo;agit donc d&rsquo;un mod\u00e8le global, ce qui signifie qu\u2019il peut apprendre de plusieurs s\u00e9ries temporelles, am\u00e9liorant ainsi la pr\u00e9cision des pr\u00e9visions en exploitant les similitudes et les structures communes.\u00a0<\/p><p>Ce mod\u00e8le a \u00e9t\u00e9 \u00e9valu\u00e9 sur plusieurs jeux de donn\u00e9es et a montr\u00e9 des r\u00e9sultats prometteurs, d\u00e9passant m\u00eame les mod\u00e8les de l\u2019\u00e9tat de l\u2019art \u00e0 l\u2019\u00e9poque. Il n\u00e9cessite donc moins de pr\u00e9traitement que certains autres mod\u00e8les et peut \u00eatre utilis\u00e9 avec peu d\u2019ajustements de param\u00e8tres pour diff\u00e9rentes s\u00e9ries temporelles.<\/p><p>Il est donc capable d\u2019apprendre des structures complexes\u00a0<b>telles que la saisonnalit\u00e9<\/b>, ce qui en fait une m\u00e9thode puissante pour am\u00e9liorer la pr\u00e9cision des forecasting dans le contexte de la supply chain<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d02742d elementor-widget elementor-widget-text-editor\" data-id=\"d02742d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Il s&rsquo;agit donc d&rsquo;un mod\u00e8le global, ce qui signifie qu\u2019il peut apprendre de plusieurs s\u00e9ries temporelles, am\u00e9liorant ainsi la pr\u00e9cision des pr\u00e9visions en exploitant les similitudes et les structures communes.\u00a0<\/p><p>Ce mod\u00e8le a \u00e9t\u00e9 \u00e9valu\u00e9 sur plusieurs jeux de donn\u00e9es et a montr\u00e9 des r\u00e9sultats prometteurs, d\u00e9passant m\u00eame les mod\u00e8les de l\u2019\u00e9tat de l\u2019art \u00e0 l\u2019\u00e9poque. Il n\u00e9cessite donc moins de pr\u00e9traitement que certains autres mod\u00e8les et peut \u00eatre utilis\u00e9 avec peu d\u2019ajustements de param\u00e8tres pour diff\u00e9rentes s\u00e9ries temporelles.<\/p><p>Il est donc capable d\u2019apprendre des structures complexes\u00a0<b>telles que la saisonnalit\u00e9<\/b>, ce qui en fait une m\u00e9thode puissante pour am\u00e9liorer la pr\u00e9cision des forecasting dans le contexte de la supply chain<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-a07efbf e-flex e-con-boxed e-con e-parent\" data-id=\"a07efbf\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-923e309 elementor-widget elementor-widget-html\" data-id=\"923e309\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"hs-cta-embed hs-cta-simple-placeholder hs-cta-embed-212638872786\"\r\n  style=\"max-width:100%; max-height:100%; width:600px;height:250px\" data-hubspot-wrapper-cta-id=\"212638872786\">\r\n  <a href=\"https:\/\/cta-eu1.hubspot.com\/web-interactives\/public\/v1\/track\/redirect?encryptedPayload=AVxigLJMkQasCaEk68GEetcSBrmbRcA%2FTkpwRbzqgicfprWMFUYQ9tdesTij0I2p9POv01148twT6shqMN1DVeijFciFwputDHO8qYb8irhCKiuLtRM%3D&webInteractiveContentId=212638872786&portalId=144414462\" target=\"_blank\" rel=\"noopener\" crossorigin=\"anonymous\">\r\n    <img decoding=\"async\" alt=\"logo optimix 2025 blanc site-web copie\" loading=\"lazy\" src=\"https:\/\/hubspot-no-cache-eu1-prod.s3.amazonaws.com\/cta\/default\/144414462\/interactive-212638872786.png\" style=\"height: 100%; width: 100%; object-fit: fill\"\r\n      onerror=\"this.style.display='none'\" \/>\r\n  <\/a>\r\n<\/div>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f1d0ee2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f1d0ee2\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3d5a99e\" data-id=\"3d5a99e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-db73a22 elementor-widget elementor-widget-heading\" data-id=\"db73a22\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Les m\u00e9thodes \u00e0 l'avant-garde (Temporal Fusion Transformers, Informer, Autoformer, \u2026)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f7f2c80 elementor-widget elementor-widget-spacer\" data-id=\"f7f2c80\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbf561f elementor-widget elementor-widget-text-editor\" data-id=\"dbf561f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Les Transformers<\/strong>, une cat\u00e9gorie d&rsquo;architectures neuronales introduites en 2017, r\u00e9volutionnent actuellement le forecasting de la supply chain.<\/p><p>Comme leurs pr\u00e9d\u00e9cesseurs, ils traitent des donn\u00e9es s\u00e9quentielles. Les m\u00e9canismes d&rsquo;attention sont utilis\u00e9s pour \u00e9tablir des relations entre diff\u00e9rentes s\u00e9quences temporelles.<\/p><p>Deux blocs essentiels existent : l&rsquo;encodeur et le d\u00e9codeur. L&rsquo;encodeur forme une repr\u00e9sentation vectorielle de la s\u00e9rie de ventes. Ensuite, le d\u00e9codeur transforme ces vecteurs en pr\u00e9visions. Pendant ce processus, les m\u00e9canismes d&rsquo;attention identifient les s\u00e9quences d&rsquo;entr\u00e9e les plus pertinentes pour la pr\u00e9vision.<\/p><p>En effet, leur force provient de leur habilet\u00e9 \u00e0 <strong>g\u00e9rer les d\u00e9pendances \u00e0 long terme<\/strong> des s\u00e9ries temporelles. Cependant, en utilisant l&rsquo;attention, ils d\u00e9tectent les relations complexes et les interactions entre diff\u00e9rentes p\u00e9riodes. En outre, cela leur permet de saisir les <strong>tendances saisonni\u00e8res<\/strong>, les mod\u00e8les de croissance et les changements de comportement dans les donn\u00e9es de la supply chain.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-377a22e elementor-widget elementor-widget-spacer\" data-id=\"377a22e\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5613b64 elementor-widget elementor-widget-spacer\" data-id=\"5613b64\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54e034a elementor-widget elementor-widget-text-editor\" data-id=\"54e034a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Ces m\u00e9thodes am\u00e9liorent donc le forecasting en supply chain. De plus, elles traitent les d\u00e9pendances \u00e0 long terme avec pr\u00e9cision. Les id\u00e9aux sont&nbsp;des tendances non lin\u00e9aires et cycles irr\u00e9guliers.<\/p>\n<p>Elles requi\u00e8rent donc plus de puissance et de stockage. Mais ils transforment plusieurs domaines.&nbsp;<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6b73069 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6b73069\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3319c86\" data-id=\"3319c86\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-58fe1ff elementor-widget elementor-widget-global elementor-global-21144 elementor-widget-heading\" data-id=\"58fe1ff\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">----------------------------<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d2a78e4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d2a78e4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-53f9a85\" data-id=\"53f9a85\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3b7e5b7 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"3b7e5b7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Les forecasting \u00e9voluent selon la disponibilit\u00e9 des donn\u00e9es et la puissance de calcul. Les m\u00e9thodes statistiques restent courantes. N\u00e9anmoins, la pr\u00e9cision et l&rsquo;int\u00e9gration de multiples facteurs favorisent le deep learning.<\/p><p>Les r\u00e9seaux de neurones ont apport\u00e9 des avanc\u00e9es. Ils garantissent une meilleure interpr\u00e9tabilit\u00e9 et un traitement parall\u00e8le sup\u00e9rieur. Les Transformers saisissent aussi mieux les d\u00e9pendances \u00e0 long terme.<\/p><p>Les d\u00e9fis futurs concernent la r\u00e9duction des co\u00fbts de calcul. Cette question devient courante dans la recherche. Elle concerne surtout la g\u00e9n\u00e9ration d&rsquo;images et de textes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-5607b72 e-flex e-con-boxed e-con e-parent\" data-id=\"5607b72\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-43e3c58 elementor-widget elementor-widget-html\" data-id=\"43e3c58\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"hs-cta-embed hs-cta-simple-placeholder hs-cta-embed-212638874819\"\r\n  style=\"max-width:100%; max-height:100%; width:600px;height:250px\" data-hubspot-wrapper-cta-id=\"212638874819\">\r\n  <a href=\"https:\/\/cta-eu1.hubspot.com\/web-interactives\/public\/v1\/track\/redirect?encryptedPayload=AVxigLJYWJtI0b9PGRbkjrsCrB68luCOSaHNJ4Tbu5F9n9T8tTsLKiLtf0m7%2B%2BsebcJGX271GVrw7vPXBmrSLh7FIntSsWd0BowXHqnBXXC%2FS2bE9KU%3D&webInteractiveContentId=212638874819&portalId=144414462\" target=\"_blank\" rel=\"noopener\" crossorigin=\"anonymous\">\r\n    <img decoding=\"async\" alt=\"logo optimix 2025 blanc site-web copie\" loading=\"lazy\" src=\"https:\/\/hubspot-no-cache-eu1-prod.s3.amazonaws.com\/cta\/default\/144414462\/interactive-212638874819.png\" style=\"height: 100%; width: 100%; object-fit: fill\"\r\n      onerror=\"this.style.display='none'\" \/>\r\n  <\/a>\r\n<\/div>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>D\u00e9couvrez l&rsquo;\u00e9volution des m\u00e9thodes de pr\u00e9vision dans le temps pour am\u00e9liorer la pr\u00e9cision en int\u00e9grant mieux les facteurs d&rsquo;influence.<\/p>\n","protected":false},"author":3,"featured_media":13975,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[188],"tags":[50],"class_list":["post-13966","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-supplychain","tag-supply-chain"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.8 (Yoast SEO v25.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Forecasting : son \u00e9volution au fil du temps<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez l&#039;\u00e9volution des m\u00e9thodes de forecasting dans le temps pour am\u00e9liorer la pr\u00e9cision en int\u00e9grant mieux les facteurs d&#039;influence.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta 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