{"id":39397,"date":"2021-01-28T18:15:03","date_gmt":"2021-01-28T17:15:03","guid":{"rendered":"https:\/\/datascientest.com\/?p=39397"},"modified":"2023-11-09T14:10:12","modified_gmt":"2023-11-09T14:10:12","slug":"wordcloud","status":"publish","type":"post","link":"https:\/\/datascientest.com\/wordcloud","title":{"rendered":"Wordcloud : De quoi s&rsquo;agit-il ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"39397\" class=\"elementor elementor-39397\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5e745e5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5e745e5\" 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-31362f8\" data-id=\"31362f8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-79b87db elementor-widget elementor-widget-text-editor\" data-id=\"79b87db\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<h2><b>Le nuage de mots ou \u00ab wordcloud \u00bb en anglais est un outil de visualisation qui permet au travers d\u2019une image de percevoir tr\u00e8s rapidement quels sont les mots qui sont les plus fr\u00e9quents au sein d\u2019un texte ou un corpus de texte. Dans cet article nous allons voir son utilit\u00e9.<\/b><\/h2>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5b1e6df elementor-widget elementor-widget-heading\" data-id=\"5b1e6df\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Quel est l\u2019utilit\u00e9 de cr\u00e9er un wordcloud ?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e8f8c5b elementor-widget elementor-widget-text-editor\" data-id=\"e8f8c5b\" 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<p><span style=\"font-weight: 400;\">Le principe du nuage de mots est celui-ci\u00a0: Au sein d\u2019un texte, on calcule la fr\u00e9quence des mots qui le compose. Plus un mot appara\u00eet souvent, plus il sera mis en \u00e9vidence\u00a0!<\/span><\/p><blockquote><p><span style=\"font-weight: 400;\">Il existe trois leviers principaux pour la personnalisation du nuage de mots\u00a0: sa taille, sa couleur ainsi que sa forme.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p><\/blockquote><p><span style=\"font-weight: 400;\">L\u2019avantage principal du nuage de mots r\u00e9side dans son <\/span><b>aspect intuitif et esth\u00e9tique<\/b><span style=\"font-weight: 400;\">\u00a0: en un rien de temps, on comprend quels sont les mots sur lesquels il faut que l\u2019on concentre. Les couleurs choisies peuvent aussi rendre la visualisation d\u2019autant plus percutante avec l\u2019utilisation de d\u00e9grad\u00e9s de couleurs par exemple. <\/span><\/p><p><span style=\"font-weight: 400;\">Leur forme peut \u00eatre personnalis\u00e9e <\/span><span style=\"font-weight: 400;\">avec des images, que l\u2019on appelle des \u00ab\u00a0masks\u00a0\u00bb.<\/span><\/p><blockquote><p><span style=\"font-weight: 400;\">A titre d\u2019exemple, si l\u2019on analyse une s\u00e9rie de tweets sur le pr\u00e9sident Donald Trump on pourra donner une forme \u00e0 notre nuage de mots qui reprendra celle de son visage, ce qui est \u00e9galement porteur d\u2019information.<\/span><\/p><\/blockquote><p><span style=\"font-weight: 400;\">En bref, le nuage de mots permet de<\/span><b> condenser un grand nombre d\u2019informations en un minimum de visualisations<\/b><span style=\"font-weight: 400;\"> ce qui est souvent ce que l\u2019on recherche lorsque l\u2019on fait des analyses textuelles.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c9c0eec elementor-widget elementor-widget-image\" data-id=\"c9c0eec\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"774\" height=\"606\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/01\/wordcloud_2.png\" class=\"attachment-large size-large wp-image-39402\" alt=\"Wordcloud\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/01\/wordcloud_2.png 774w, https:\/\/datascientest.com\/wp-content\/uploads\/2021\/01\/wordcloud_2-300x235.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2021\/01\/wordcloud_2-768x601.png 768w\" sizes=\"(max-width: 774px) 100vw, 774px\" \/>\t\t\t\t\t\t\t\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\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-20fda51 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"20fda51\" 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-fcd50aa\" data-id=\"fcd50aa\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-92079e9 elementor-widget elementor-widget-heading\" data-id=\"92079e9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Quels sont ses inconv\u00e9nients  ?\n<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45da9fb elementor-widget elementor-widget-text-editor\" data-id=\"45da9fb\" 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<p><span style=\"font-weight: 400;\">Bien que tr\u00e8s pratique, le nuage de mots n\u2019est pas toujours l\u2019outil le plus pertinent et donc le plus efficace pour r\u00e9aliser ses analyses textuelles. Il est <\/span><b>moins pr\u00e9cis qu\u2019un bar chart<\/b><span style=\"font-weight: 400;\"> qui donne des indications plus sp\u00e9cifiques sur la fr\u00e9quence des mots et qui permet une comparaison efficace de la fr\u00e9quence de l\u2019apparition des mots du texte.\u00a0 Il comporte ainsi peu de pr\u00e9cision dans l\u2019information qu\u2019il transmet. \u00c9galement<\/span><b>, il ne sera pas simple de traduire le contexte <\/b><span style=\"font-weight: 400;\">dans lequel ces mots apparaissent. <\/span><b>Par exemple, il sera difficile d\u2019interpr\u00e9ter des phrases avec une n\u00e9gation. La locution \u00ab\u00a0Pas satisfait\u00a0\u00bb ne va pas forc\u00e9ment \u00eatre retranscrite comme ceci puisqu\u2019il va analyser la fr\u00e9quence de mots de fa\u00e7on individuelle. <\/b><\/p>\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\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c328ce9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c328ce9\" 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-980c620\" data-id=\"980c620\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-54a0fe1 elementor-widget elementor-widget-heading\" data-id=\"54a0fe1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wordcloud & sentiment analysis <\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-731df37 elementor-widget elementor-widget-text-editor\" data-id=\"731df37\" 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<p><span style=\"font-weight: 400;\">Son utilisation est n\u00e9anmoins souvent pertinente dans le cadre d\u2019une <\/span><a href=\"https:\/\/datascientest.com\/machine-learning-sentiment-analysis\"><span style=\"color: #000000;\"><b>analyse de sentiment<\/b><\/span><span style=\"font-weight: 400;\">.<\/span><\/a> <span style=\"font-weight: 400;\">Prenons un exemple d\u2019\u00e9tude de cas marketing. <\/span><\/p><blockquote><p><span style=\"font-weight: 400;\">Il pourrait \u00eatre int\u00e9ressant pour une \u00e9quipe service client de visualiser alternativement quels sont les mots qui reviennent le plus au sein des commentaires positifs et n\u00e9gatifs sur des produits commercialis\u00e9s.<\/span><\/p><\/blockquote><p><span style=\"font-weight: 400;\">Cela permet \u00e0 la fois de<\/span><b> mieux communiquer <\/b><span style=\"font-weight: 400;\">et de<\/span><b> r\u00e9pondre de fa\u00e7on plus optimale<\/b><span style=\"font-weight: 400;\"> aux diff\u00e9rentes requ\u00eates. <\/span><\/p><p><span style=\"font-weight: 400;\">Apr\u00e8s avoir r\u00e9alis\u00e9 une\u00a0<\/span><a href=\"https:\/\/datascientest.com\/machine-learning-sentiment-analysis\" target=\"_blank\" rel=\"noopener\">analyse de sentiments<\/a><span style=\"font-weight: 400;\">\u00a0sur les commentaires qu\u2019ils ont \u00e0 leur disposition, le nuage de mots va venir appuyer cette premi\u00e8re analyse en permettant aux \u00e9quipes de voir quels sont les mots qui sont revenus majoritairement et qui ont conduit \u00e0 leur <\/span><b>classification<\/b><span style=\"font-weight: 400;\">. <\/span><\/p><p><span style=\"font-weight: 400;\">A titre d\u2019exemple, si les \u00e9quipes client remarquent que les mots les plus pr\u00e9sents dans les commentaires n\u00e9gatifs ont un lien fort avec le service de livraisons\u00a0: \u00ab\u00a0d\u00e9lais\u00a0\u00bb,\u00ab\u00a0frais\u00a0\u00bb,\u00ab\u00a0port\u00a0\u00bb. Cela va orienter de fa\u00e7on tr\u00e8s simple le travail en aval et <\/span><b>orienter la prise de d\u00e9cisio<\/b><span style=\"font-weight: 400;\">n comme par exemple d\u00e9cider de r\u00e9duire les frais de port ou encore changer de transporteur.\u00a0 A l\u2019aide des nuages de mots, ces \u00e9quipes vont pouvoir facilement justifier leurs choix aupr\u00e8s des autres \u00e9quipes sans travail additionnel. <\/span><\/p><p><span style=\"font-weight: 400;\">Dans un prochain article, vous verrez comment cr\u00e9er des wordcloud sur\u00a0<\/span><a href=\"https:\/\/www.python.org\/\" target=\"_blank\" rel=\"noopener\">python<\/a><span style=\"font-weight: 400;\">, un peu de patience\u00a0<\/span><span style=\"font-weight: 400;\">\ud83d\ude09<\/span><\/p><p><span style=\"font-weight: 400;\">D\u2019ici l\u00e0 vous pouvez toujours retrouver notre <span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/datascientest.com\/text-mining-appel-du-18-juin\"><strong>pr\u00e9c\u00e9dent article sur le sujet.<\/strong><\/a><\/span><\/span><\/p>\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\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le nuage de mots ou \u00ab wordcloud \u00bb en anglais est un outil de visualisation qui permet au travers d\u2019une image de percevoir tr\u00e8s rapidement quels sont les mots qui sont les plus fr\u00e9quents au sein d\u2019un texte ou un corpus de texte. Dans cet article nous allons voir son utilit\u00e9. Quel est l\u2019utilit\u00e9 de [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":39609,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2497],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Wordcloud : De quoi s&#039;agit-il ? - multi.datascientest.com<\/title>\n<meta name=\"description\" content=\"Vous vous \u00eates toujours demand\u00e9s qu&#039;est qu&#039;un Wordcloud ? D\u00e9couvrez avec un de nos experts tout ce qu&#039;il faut savoir \u00e0 ce sujet !\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/wordcloud\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wordcloud : De quoi s&#039;agit-il ?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/wordcloud\" \/>\n<meta property=\"og:site_name\" content=\"Formation Data Science | DataScientest.com\" \/>\n<meta property=\"article:published_time\" content=\"2021-01-28T17:15:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-09T14:10:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/wp-content\/uploads\/2021\/01\/illu_wordclouds_blog-66-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1405\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Raphael Kassel\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Raphael Kassel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/wordcloud\",\"url\":\"https:\/\/datascientest.com\/wordcloud\",\"name\":\"Wordcloud : De quoi s'agit-il ? - multi.datascientest.com\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/#website\"},\"datePublished\":\"2021-01-28T17:15:03+00:00\",\"dateModified\":\"2023-11-09T14:10:12+00:00\",\"author\":{\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/6eca16f63daaafcbc96e15549b9d4ee1\"},\"description\":\"Vous vous \u00eates toujours demand\u00e9s qu'est qu'un Wordcloud ? 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En collaboration \u00e9troite avec l'\u00e9quipe de d\u00e9veloppement, il adapte l'accompagnement acad\u00e9mique aux \u00e9volutions de l'\u00e9quipe data et \u00e0 l'internationalisation.","sameAs":["https:\/\/www.linkedin.com\/in\/raphaelkassel\/","Data Science"],"url":"https:\/\/datascientest.com\/author\/raphaelkassel"}]}},"_links":{"self":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts\/39397"}],"collection":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/users\/77"}],"replies":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/comments?post=39397"}],"version-history":[{"count":0,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts\/39397\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/media\/39609"}],"wp:attachment":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/media?parent=39397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/categories?post=39397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/tags?post=39397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}