{"id":3917,"date":"2020-06-18T07:43:47","date_gmt":"2020-06-18T07:43:47","guid":{"rendered":"https:\/\/datascientest.com\/?p=3917"},"modified":"2023-11-09T14:14:01","modified_gmt":"2023-11-09T14:14:01","slug":"text-mining-appel-du-18-juin","status":"publish","type":"post","link":"https:\/\/datascientest.com\/text-mining-appel-du-18-juin","title":{"rendered":"Text Mining &#8211; Appel du 18 Juin"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3917\" class=\"elementor elementor-3917\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-16ee82d e-flex e-con-boxed e-con\" data-id=\"16ee82d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5154a36 elementor-widget elementor-widget-heading\" data-id=\"5154a36\" 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\">Qui d\u2019entre vous n\u2019a jamais r\u00eav\u00e9 d\u2019une analyse de textes automatis\u00e9e ? Avec le Machine Learning, certaines perspectives auparavant de l\u2019ordre de l\u2019imaginaire sont d\u00e9sormais accessibles.<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1728b37 elementor-widget elementor-widget-text-editor\" data-id=\"1728b37\" 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<p>Gr\u00e2ce au <b> text mining <\/b> (extraction d\u2019une information de haute qualit\u00e9 d\u2019un texte) notamment, l\u2019<b>analyse de textes<\/b> comme des tweets,critiques de film, discours, extraits de livre est rendue possible par l\u2019\u00e9tablissement de <b>mod\u00e8les d\u2019apprentissage .<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bbcd26b e-flex e-con-boxed e-con\" data-id=\"bbcd26b\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-982fac3 elementor-widget elementor-widget-heading\" data-id=\"982fac3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Text Mining - Discours du G\u00e9n\u00e9ral De Gaulle<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f03755a elementor-widget elementor-widget-text-editor\" data-id=\"f03755a\" 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>Chez DataScientest, on essaie toujours de <b>concr\u00e9tiser l\u2019apprentissage<\/b>. La date de cet article n\u2019est pas une co\u00efncidence, on s\u2019est dit qu\u2019il serait int\u00e9ressant d\u2019<b>analyser les discours prononc\u00e9s<\/b> par une des plus grandes figures politiques fran\u00e7aises, rendue c\u00e9l\u00e8bre notamment par son fameux <b>appel du 18 juin<\/b> lanc\u00e9 \u00e0 la radio <b>BBC de Londres<\/b> : <b>Charles de Gaulle<\/b>.\u00a0<\/p><p>Pour ce faire, nous avons \u00e9tudi\u00e9 un corpus de textes constitu\u00e9 de <b>25 de ses discours.<\/b><\/p><p>Afin de rendre notre analyse la plus robuste possible, nous avons dans un premiers temps <b>regroup\u00e9 les diff\u00e9rents discours par ordre chronologique<\/b>, le but \u00e9tant de retracer les diff\u00e9rentes \u00e9tapes de la vie politique du G\u00e9n\u00e9ral de Gaulle. Nous avons donc affect\u00e9 aux <b>variables <i>text1940_1945, text1946_1957<\/i> et <i>text1958_1969<\/i><\/b>, <b>toutes les allocutions<\/b> datant respectivement <b>de 1940 \u00e0 1945<\/b>, de <b>1946 \u00e0 1957<\/b> et de <b>1958 \u00e0 1969<\/b>.\u00a0<\/p><p><span style=\"font-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;\">L\u2019id\u00e9e ensuite est de\u00a0<\/span><span style=\"font-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: bold;\">cr\u00e9er un nuage de mots;<\/span><span style=\"font-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;\">\u00a0\u00a0<\/span><span style=\"font-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: bold;\">wordcloud<\/span><span style=\"font-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;\"> en anglais; pour chaque p\u00e9riode.<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9c82e46 e-flex e-con-boxed e-con\" data-id=\"9c82e46\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-265243a elementor-widget elementor-widget-heading\" data-id=\"265243a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Qu'est ce qu'un nuage de mots ? <\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2bc4005 elementor-widget elementor-widget-text-editor\" data-id=\"2bc4005\" 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 style=\"font-variant-ligatures: normal; font-variant-caps: normal; font-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-weight: 400; color: #000000;\">Un<span style=\"font-size: 17px; font-weight: bold;\">\u00a0nuage de mots<\/span>\u00a0n\u2019est ni plus ni moins qu\u2019une\u00a0<span style=\"font-size: 17px; font-weight: bold;\">repr\u00e9sentation visuelle<\/span>\u00a0permettant :<\/p><ul style=\"font-variant-ligatures: normal; font-variant-caps: normal; font-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-weight: 400; color: #000000;\"><li style=\"font-size: 17px;\">d\u2019<span style=\"font-size: 17px; font-weight: bold;\">identifier rapidement les mots cl\u00e9s<\/span>\u00a0pr\u00e9sentant le plus d&rsquo;occurrences dans un texte (plus un mot appara\u00eet fr\u00e9quemment, plus la taille de la police dans le nuage de mots est grande)<\/li><li style=\"font-size: 17px;\">de\u00a0<span style=\"font-size: 17px; font-weight: bold;\">faciliter la compr\u00e9hension<\/span>\u00a0d\u2019un texte<\/li><li style=\"font-size: 17px;\">de\u00a0<span style=\"font-size: 17px; font-weight: bold;\">rep\u00e9rer rapidement les id\u00e9es principales<\/span>\u00a0d\u2019un texte en faisant appara\u00eetre les champs lexicaux pr\u00e9sents dans ce dernier.<\/li><\/ul><p style=\"font-variant-ligatures: normal; font-variant-caps: normal; font-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-weight: 400; color: #000000;\">Essayons d\u2019<span style=\"font-size: 17px; font-weight: bold;\">impl\u00e9menter tout \u00e7a en Python<\/span>\u00a0:<\/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-cae21a0 elementor-widget elementor-widget-shortcode\" data-id=\"cae21a0\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/pauldechorgnat\/50caaa97103797278d8f4343680cb5e2.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9105a5 elementor-widget elementor-widget-text-editor\" data-id=\"d9105a5\" 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-family: 'Proxima Nova', sans-serif; font-size: 17px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;\">Voici ce que cela nous affiche :<\/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\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9a8eb6f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9a8eb6f\" 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-33 elementor-top-column elementor-element elementor-element-38ee030\" data-id=\"38ee030\" 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-4b50a83 elementor-widget elementor-widget-image\" data-id=\"4b50a83\" 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<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"442\" height=\"411\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-1-.png\" class=\"attachment-1536x1536 size-1536x1536 wp-image-3923\" alt=\"word cloud 1\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-1-.png 442w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-1--300x279.png 300w\" sizes=\"(max-width: 442px) 100vw, 442px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Discours 1940-1945<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\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<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-3c323a1\" data-id=\"3c323a1\" 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-373124e elementor-widget elementor-widget-image\" data-id=\"373124e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"442\" height=\"411\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-2.png\" class=\"attachment-large size-large wp-image-3922\" alt=\"word cloud 2\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-2.png 442w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-2-300x279.png 300w\" sizes=\"(max-width: 442px) 100vw, 442px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Discours 1946-1957<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\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<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-bcd7936\" data-id=\"bcd7936\" 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-8a44f20 elementor-widget elementor-widget-image\" data-id=\"8a44f20\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"442\" height=\"411\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-3-.png\" class=\"attachment-large size-large wp-image-3921\" alt=\"nuage de mots 3\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-3-.png 442w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-3--300x279.png 300w\" sizes=\"(max-width: 442px) 100vw, 442px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Discours 1958-1969<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\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<div class=\"elementor-element elementor-element-2dc9c7f e-flex e-con-boxed e-con\" data-id=\"2dc9c7f\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e8b69e2 elementor-widget elementor-widget-text-editor\" data-id=\"e8b69e2\" 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>Pour davantage de visibilit\u00e9, on peut \u00e9galement afficher un <strong>graphique en barres<\/strong> pr\u00e9sentant les <strong>20 mots cl\u00e9s les plus pr\u00e9sents<\/strong> pour chaque p\u00e9riode :<\/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-4a4a8db elementor-widget elementor-widget-shortcode\" data-id=\"4a4a8db\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/pauldechorgnat\/52496639046931ec619f5eed6818200c.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cda8e16 elementor-widget elementor-widget-text-editor\" data-id=\"cda8e16\" 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-family: 'Proxima Nova', sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;\">Graphiquement, on obtient<\/span><span style=\"font-family: 'Proxima Nova', sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; font-size: 17px; color: #000000;\">\u00a0:<\/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-6ca6942 elementor-widget elementor-widget-image\" data-id=\"6ca6942\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"443\" height=\"265\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-4-.png\" class=\"attachment-large size-large wp-image-3930\" alt=\"graphique en barre 1\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-4-.png 443w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-4--300x179.png 300w\" sizes=\"(max-width: 443px) 100vw, 443px\" \/>\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<div class=\"elementor-element elementor-element-a15016a elementor-widget elementor-widget-image\" data-id=\"a15016a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"441\" height=\"265\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-5-.png\" class=\"attachment-large size-large wp-image-3929\" alt=\"graphique en barre 2\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-5-.png 441w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-5--300x180.png 300w\" sizes=\"(max-width: 441px) 100vw, 441px\" \/>\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<div class=\"elementor-element elementor-element-9c3b71f elementor-widget elementor-widget-image\" data-id=\"9c3b71f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"443\" height=\"265\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-6-.png\" class=\"attachment-large size-large wp-image-3928\" alt=\"graphique en barre3\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-6-.png 443w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-6--300x179.png 300w\" sizes=\"(max-width: 443px) 100vw, 443px\" \/>\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<div class=\"elementor-element elementor-element-a038fb4 elementor-widget elementor-widget-text-editor\" data-id=\"a038fb4\" 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>\u00c0 l\u2019aide de ces deux diff\u00e9rentes <b>repr\u00e9sentations visuelles<\/b>, on peut ainsi facilement et rapidement <b>retracer les 3 diff\u00e9rentes grandes \u00e9tapes<\/b> de la vie politique de Charles de Gaulle :<\/p><ol><li>La <b>p\u00e9riode 1940-1945<\/b> : il semble assez logique que les mots <span class=\"mot\">\u2018france\u2019, \u2018ennemi\u2019, \u2018victoire\u2019, \u2018alli\u00e9s\u2019, \u2018bataille\u2019<\/span> ressortent. En effet, durant cette p\u00e9riode marqu\u00e9e par la <b>R\u00e9sistance <\/b>incarn\u00e9e par son chef, le g\u00e9n\u00e9ral De Gaulle, la <span class=\"mot\">&lsquo;France&rsquo;<\/span> ainsi que tous les pays des <span class=\"mot\">\u2018Alli\u00e9s\u2019<\/span> sont \u00e9cras\u00e9s par la pression <span class=\"mot\">\u2018ennemie\u2019<\/span> Allemande. De Gaulle fait ainsi figure de sauveur et envoie \u00e0 travers ses discours, des messages d\u2019espoirs dans l\u2019optique d\u2019une <span class=\"mot\">\u2018victoire\u2019<\/span>.<\/li><li><span style=\"font-size: 17px;\">La <b>p\u00e9riode 1946-1957<\/b> : Cette p\u00e9riode est synonyme de <i><b>travers\u00e9e du d\u00e9sert <\/b><\/i>pour De Gaulle. Il dispara\u00eet progressivement du paysage politique fran\u00e7ais et <b>pr\u00e9pare en secret l\u2019instauration de la V\u00e8me R\u00e9publique <\/b>d\u2019o\u00f9 l\u2019apparition de ce terme dans la liste des mots les plus fr\u00e9quents.<\/span><\/li><li>La <b>p\u00e9riode 1958-1969<\/b> : Une fois encore, les mots cl\u00e9s qui se d\u00e9marquent par leur fr\u00e9quence semblent assez coh\u00e9rents par rapport au contexte. Cette p\u00e9riode est en effet marqu\u00e9e par la <b>crise d\u2019<span class=\"mot\">\u2019Alg\u00e9rie\u2019<\/span><\/b>\u00a0qui va notamment lui permettre de revenir sur le devant de la sc\u00e8ne et de <b>s\u2019imposer comme un leader charismatique<\/b>, lui permettant de fonder une <span class=\"mot\">\u2018r\u00e9publique\u2019 <\/span>;\u00e0 son image : la V\u00e8me r\u00e9publique. Il traversera ensuite la fameuse crise de mai 1968 durant laquelle se d\u00e9roule des manifestations \u00e9tudiantes et gr\u00e8ves g\u00e9n\u00e9rales avant de d\u00e9missionner de son poste de Pr\u00e9sident en avril 1969.<\/li><\/ol>\t\t\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<div class=\"elementor-element elementor-element-af8e63b e-flex e-con-boxed e-con\" data-id=\"af8e63b\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1a80a3c elementor-widget elementor-widget-heading\" data-id=\"1a80a3c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Si on passait par du Sentiment Analysis ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c3f0d0 elementor-widget elementor-widget-text-editor\" data-id=\"9c3f0d0\" 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>A l\u2019aide de librairies Python comme\u00a0<a href=\"https:\/\/www.nltk.org\/\" target=\"_blank\" rel=\"noopener\">NLTK<\/a>\u00a0(Natural Language Toolkit) et de sa fonction VADER Sentiment Analysis, on peut \u00e9galement effectuer une analyse de sentiments dont voici l\u2019impl\u00e9mentation :<\/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-85e5a31 elementor-widget elementor-widget-shortcode\" data-id=\"85e5a31\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/pauldechorgnat\/1b4c132d7cb79f9ecd2ecdd099c6bbba.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e34219 elementor-widget elementor-widget-image\" data-id=\"7e34219\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"632\" height=\"164\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-6.png\" class=\"attachment-large size-large wp-image-3934\" alt=\"sentiment analysis\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-6.png 632w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-6-300x78.png 300w\" sizes=\"(max-width: 632px) 100vw, 632px\" \/>\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<div class=\"elementor-element elementor-element-1a844ba elementor-widget elementor-widget-text-editor\" data-id=\"1a844ba\" 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-size: 17px;\">\u2192 La moyenne de la variable sentiment_score est proche de 0<\/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-998e34e elementor-widget elementor-widget-image\" data-id=\"998e34e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"211\" height=\"30\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/06\/de-gaulle-7-.png\" class=\"attachment-large size-large wp-image-3933\" alt=\"accuracy\" loading=\"lazy\" \/>\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<div class=\"elementor-element elementor-element-6a60660 elementor-widget elementor-widget-text-editor\" data-id=\"6a60660\" 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-size: 17px;\">Cela signifie qu\u2019en moyenne, les <\/span><b style=\"font-size: 17px;\">messages envoy\u00e9s <\/b><span style=\"font-size: 17px;\">par le Pr\u00e9sident De Gaulle \u00e0 travers ses discours sont <\/span><b style=\"font-size: 17px;\">plut\u00f4t neutres<\/b><span style=\"font-size: 17px;\">. Toutefois, comme on peut voir dans les 5 premi\u00e8res lignes du DataFrame <\/span><i style=\"font-size: 17px;\">(commande df_new.head())<\/i><span style=\"font-size: 17px;\">, l\u2019algorithme est capable de <\/span><b style=\"font-size: 17px;\">d\u00e9tecter la n\u00e9gativit\u00e9 d\u2019une phrase<\/b><span style=\"font-size: 17px;\"> contenant le mot \u2018d\u00e9faite\u2019 (ligne 2 du DataFrame).<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-be5d069 e-flex e-con-boxed e-con\" data-id=\"be5d069\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-353b541 elementor-widget elementor-widget-text-editor\" data-id=\"353b541\" 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>Envie d&rsquo;en d\u00e9couvrir davantage sur le\u00a0<a href=\"https:\/\/datascientest.com\/catalog\/module\/131-text-mining-avec-python\" target=\"_blank\" rel=\"noopener\">Text Mining<\/a>\u00a0et de ma\u00eetriser les techniques du Machine Learning ? N&rsquo;attendez plus,\u00a0<a href=\"https:\/\/datascientest.com\/processus-inscription\" target=\"_blank\" rel=\"noopener\">formez-vous<\/a>\u00a0!<\/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-a6023cb elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"a6023cb\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">En savoir plus sur les formations de DataScientest<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\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-d0339a1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d0339a1\" 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-0946940\" data-id=\"0946940\" 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-811dc3e elementor-widget elementor-widget-text-editor\" data-id=\"811dc3e\" 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\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>Qui d\u2019entre vous n\u2019a jamais r\u00eav\u00e9 d\u2019une analyse de textes automatis\u00e9e ? Avec le Machine Learning, certaines perspectives auparavant de l\u2019ordre de l\u2019imaginaire sont d\u00e9sormais accessibles. Gr\u00e2ce au text mining (extraction d\u2019une information de haute qualit\u00e9 d\u2019un texte) notamment, l\u2019analyse de textes comme des tweets,critiques de film, discours, extraits de livre est rendue possible par [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":3988,"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>Text Mining - Appel du 18 juin<\/title>\n<meta name=\"description\" content=\"Si le text mining vous permettait d&#039;explorer des discours historiques sous un nouvel angle ? 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