{"id":207,"date":"2018-11-21T15:38:38","date_gmt":"2018-11-21T15:38:38","guid":{"rendered":"https:\/\/campus.hesge.ch\/blog-master-is\/?p=207"},"modified":"2018-11-22T12:12:51","modified_gmt":"2018-11-22T12:12:51","slug":"big-data-une-revolution-technologique-implicite","status":"publish","type":"post","link":"https:\/\/campus.hesge.ch\/blog-master-is\/big-data-une-revolution-technologique-implicite\/","title":{"rendered":"Big Data : une (r)\u00e9volution technologique implicite"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-208 aligncenter\" src=\"https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov.jpg\" alt=\"\" width=\"569\" height=\"268\" srcset=\"https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov.jpg 850w, https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov-300x141.jpg 300w, https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov-768x361.jpg 768w\" sizes=\"(max-width: 569px) 100vw, 569px\" \/><\/p>\n<p style=\"text-align: center\">(Source\u00a0: <a href=\"https:\/\/www.azquotes.com\/quote\/579325\">https:\/\/www.azquotes.com\/quote\/579325<\/a>)<\/p>\n<p style=\"text-align: justify\"><a href=\"https:\/\/fr.wikipedia.org\/wiki\/Isaac_Asimov\">Isaac Asimov<\/a>, \u00e9crivain de science-fiction de haute r\u00e9putation a cr\u00e9\u00e9 de toutes pi\u00e8ces, pour une s\u00e9rie de romans \u00e9crits dans les ann\u00e9es 50, une science appel\u00e9e <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Psychohistoire_(Asimov)\">psychohistoire<\/a>. Celle-ci permettrait de pr\u00e9voir, par le calcul, les \u00e9volutions de la soci\u00e9t\u00e9 et la r\u00e9action des masses humaines. Ses pr\u00e9dictions \u00e9tabliraient donc des probabilit\u00e9s d\u2019autant plus fiables qu\u2019elles porteraient sur des populations de grande taille. D\u2019une certaine fa\u00e7on, il s\u2019agit d\u2019obtenir une vue d\u2019ensemble de l\u2019humanit\u00e9 s\u2019\u00e9talant dans le temps, et donc de pr\u00e9voir l\u2019avenir au moyen d\u2019\u00e9quations mettant en jeu des donn\u00e9es issues de la totalit\u00e9 des connaissances accumul\u00e9es, aussi bien dans les sciences dures qu\u2019humaines.<\/p>\n<blockquote>\n<h3 style=\"text-align: justify\"><strong>\u00ab\u00a0<em>The concept of Big Data is as popular as its meaning is nebulous.<\/em>\u00a0\u00bb<\/strong><\/h3>\n<\/blockquote>\n<p style=\"text-align: justify\">En tombant sur cette affirmation issue de l\u2019article pr\u00e9sent\u00e9 lors du s\u00e9minaire du 19 octobre (De Mauro, Greco &amp; Grimaldi, 2016), j\u2019ai r\u00e9alis\u00e9 que le concept de Big Data \u00e9tait \u00e0 ce point n\u00e9buleux que certains l\u2019ont pr\u00e9suppos\u00e9 avant m\u00eame que la technologie ne rende imaginable son existence et ses possibilit\u00e9s. Isaac Asimov a imagin\u00e9 une humanit\u00e9 qui maitriserait compl\u00e9tement ce concept au point de le mettre enti\u00e8rement \u00e0 son service\u00a0: un futur utopique o\u00f9 elle aurait pris le contr\u00f4le (presque) total de son avenir.<\/p>\n<p style=\"text-align: justify\">Ce qui est int\u00e9ressant avec cet exemple, c\u2019est que cette fabuleuse science, la psychohistoire, ne peut fonctionner qu\u2019en pr\u00e9supposant l\u2019existence du Big Data, dans lequel elle trouvera de quoi alimenter ses \u00e9quations. Or, je le rappelle, les premiers volumes du <em><a href=\"https:\/\/fr.wikipedia.org\/wiki\/Cycle_de_Fondation\">Cycle de Fondation<\/a><\/em> ont \u00e9t\u00e9 \u00e9crits entre 1951 et 1953\u2026 Isaac Asimov, \u00e9crivain, scientifique et visionnaire, avait donc d\u00e9j\u00e0 bien saisi l\u2019importance des donn\u00e9es en vue de leur utilisation, et c\u2019est loin d\u2019\u00eatre le seul de sa g\u00e9n\u00e9ration (<a href=\"https:\/\/fr.wikipedia.org\/wiki\/Arthur_C._Clarke\">Arthur C. Clarke<\/a> et <a href=\"https:\/\/fr.wikipedia.org\/wiki\/A._E._van_Vogt\">A. E. van Vogt<\/a>, pour n\u2019en citer que deux). Cependant, \u00e0 la lecture de leurs ouvrages, nous voyons bien qu\u2019ils ont n\u00e9glig\u00e9 la complexit\u00e9 du d\u00e9fi technologique que repr\u00e9sente la r\u00e9colte, l\u2019organisation et l\u2019exploitation de ces masses de donn\u00e9es incommensurables.<\/p>\n<h3 style=\"text-align: justify\"><strong>Bienvenue dans l\u2019\u00e8re du zettabyte\u00a0!<\/strong><\/h3>\n<p style=\"text-align: justify\">Nous produisons aujourd\u2019hui une quantit\u00e9 de donn\u00e9es si importante et si rapidement que nous n\u2019arrivons plus \u00e0 appr\u00e9hender ce qu\u2019elle repr\u00e9sente. Sachez, pour l\u2019exemple, que l\u2019humanit\u00e9 cr\u00e9e annuellement pr\u00e8s de trois trillons d\u2019octets de donn\u00e9es. <em>Trois trillons<\/em>. Trois fois dix puissance dix-huit\u00a0: arrivez-vous \u00e0 vous repr\u00e9senter un tel chiffre\u00a0? Et ce n\u2019est rien\u00a0! En 2016, l\u2019on estimait que les donn\u00e9es cr\u00e9\u00e9es au cours des deux ann\u00e9es pr\u00e9c\u00e9dentes correspondaient \u00e0 90% des donn\u00e9es existantes dans le monde\u2026 Et leur production est exponentielle\u00a0! La quantit\u00e9 s\u2019accro\u00eet d\u2019un facteur 9 tous les 5 ans\u00a0! (Espinasse, Bellot, 2017)<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-210 aligncenter\" src=\"https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/table-conversion.jpg\" alt=\"\" width=\"299\" height=\"338\" srcset=\"https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/table-conversion.jpg 530w, https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/table-conversion-265x300.jpg 265w\" sizes=\"(max-width: 299px) 100vw, 299px\" \/><\/p>\n<p style=\"text-align: center\">(Source\u00a0: <a href=\"https:\/\/www.engadget.com\/2011\/06\/29\/visualized-a-zettabyte\/\">https:\/\/www.engadget.com\/2011\/06\/29\/visualized-a-zettabyte\/<\/a>)<\/p>\n<p style=\"text-align: justify\">Le Big Data a permis une acc\u00e9l\u00e9ration ph\u00e9nom\u00e9nale dans bien des domaines de recherche, comme la g\u00e9n\u00e9tique, la m\u00e9decine, la physique, l\u2019astronomie, et bien d\u2019autres. Autrefois, il fallait compter dix ans et deux milliards d\u2019euros pour r\u00e9aliser un s\u00e9quen\u00e7age du g\u00e9nome humain\u00a0; aujourd\u2019hui, quelques jours et un petit millier d\u2019euros suffisent\u00a0! En m\u00e9decine, les nouvelles opportunit\u00e9s qu\u2019offrent les m\u00e9gadonn\u00e9es permettent de pr\u00e9venir des \u00e9pid\u00e9mies en \u00e9tudiant les r\u00e9seaux sociaux. Huit ann\u00e9es ont \u00e9t\u00e9 n\u00e9cessaires pour enregistrer 140 t\u00e9raoctets (140*10<sup>12<\/sup> octets) d\u2019images \u00e0 un grand programme d\u2019observation astronomique, volume de donn\u00e9es qui est r\u00e9colt\u00e9 par son successeur en\u2026 cinq jours\u00a0! (Espinasse, Bellot, 2017)<\/p>\n<h3 style=\"text-align: justify\"><strong>Le livre (num\u00e9rique) de l\u2019Histoire de l\u2019humanit\u00e9<\/strong><\/h3>\n<p style=\"text-align: justify\"><a href=\"http:\/\/www.philosophyofinformation.net\/\">Luciano Floridi<\/a>, dans <em>The Information revolution<\/em> (2010), fait le constat suivant\u00a0: l\u2019Histoire de l\u2019humanit\u00e9 d\u00e9pend du d\u00e9veloppement des syst\u00e8mes permettant d\u2019enregistrer les \u00e9v\u00e9nements, et donc d\u2019accumuler et de transmettre des informations sur le pass\u00e9. Le Big Data est, d\u2019une certaine mani\u00e8re, le futur livre d\u2019histoire de nos descendants\u2026 N\u00e9anmoins, des probl\u00e8mes se posent\u00a0: la rapidit\u00e9 de sa croissance pr\u00e9c\u00e8de l\u2019\u00e9tablissement de r\u00e8gles et de lois permettant de prot\u00e9ger les donn\u00e9es priv\u00e9es, et l\u2019accessibilit\u00e9 aux informations devra \u00eatre r\u00e9gul\u00e9e pour \u00e9viter, par exemple, des situations de monopoles sur les march\u00e9s (Da Mauro, Greco &amp; Grimaldi, 2016, p.127).<\/p>\n<p style=\"text-align: justify\">Car le Big Data bouleverse non seulement le monde des sciences, mais aussi celui des march\u00e9s \u00e9conomiques\u00a0: le taux de croissance mondial, annuel et moyen du march\u00e9 de la technologie et des services autour des m\u00e9gadonn\u00e9es entre 2011 et 2016 avoisine les 30%, et d\u00e8s 2020, les pr\u00e9visions estiment que cela repr\u00e9sentera environ 8% du PIB europ\u00e9en. Les entreprises doivent d\u00e8s lors reconsid\u00e9rer leur organisation et leurs processus commerciaux en fonction de ce nouveau paradigme (Da Mauro, Greco &amp; Grimaldi, 2016, p.127).<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-209 aligncenter\" src=\"https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov2.jpg\" alt=\"\" width=\"496\" height=\"303\" srcset=\"https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov2.jpg 1050w, https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov2-300x183.jpg 300w, https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov2-768x468.jpg 768w, https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov2-1024x624.jpg 1024w, https:\/\/campus.hesge.ch\/blog-master-is\/wp-content\/uploads\/2018\/11\/quote_iasimov2-80x50.jpg 80w\" sizes=\"(max-width: 496px) 100vw, 496px\" \/><\/p>\n<p style=\"text-align: center\">(Source\u00a0: <a href=\"https:\/\/www.azquotes.com\/quote\/11681\">https:\/\/www.azquotes.com\/quote\/11681<\/a>)<\/p>\n<p style=\"text-align: justify\">Nous vivons donc une \u00e9poque charni\u00e8re o\u00f9 les avanc\u00e9es technologiques sont plus rapides que leur encadrement. Le d\u00e9fi \u00e0 l\u2019avenir, outre le d\u00e9veloppement d\u2019outils technologiques, se situera dans l\u2019assurance que l\u2019\u00e9norme potentiel li\u00e9 aux m\u00e9gadonn\u00e9es soit mis au service de l\u2019humanit\u00e9, comme le sugg\u00e8re Asimov, et non r\u00e9serv\u00e9 aux initi\u00e9s et aux utilisations commerciales. Ce dernier estimait d\u2019ailleurs que la science-fiction \u00e9tait la branche de la litt\u00e9rature qui se souciait des r\u00e9ponses de l\u2019\u00eatre humain aux progr\u00e8s de la science et de la technologie (1993). Il serait donc int\u00e9ressant de consulter ces visionnaires, pass\u00e9s, pr\u00e9sents et futurs, sur les questions \u00e9thiques inh\u00e9rentes \u00e0 ces probl\u00e9matiques\u2026 L\u2019avenir est entre nos mains, \u00e0 nous de le fa\u00e7onner\u00a0!<\/p>\n<h4 style=\"text-align: justify\"><u>BIBLIOGRAPHIE\u00a0:<\/u><\/h4>\n<p style=\"text-align: justify\">ASIMOV, Isaac, 1993. <em>David Starr, justicier de l\u2019espace<\/em>. Uccle\u00a0: Claude Lefrancq. ISBN\u00a0: 2-87153-149-8<\/p>\n<p style=\"text-align: left\">DE MAURO, Andrea, GRECO, Marco, GRIMALDI, Michele, 2016. A formal definition of Big Data based on its essential features. <em>Library Review<\/em> [en ligne]. 2016. Vol. 65 Issue: 3, pp.122-135. [Consult\u00e9 le 30.10.2018]. Disponible \u00e0 l\u2019adresse\u00a0: <a href=\"https:\/\/www.emeraldinsight.com\/doi\/full\/10.1108\/LR-06-2015-0061\">https:\/\/www.emeraldinsight.com\/doi\/full\/10.1108\/LR-06-2015-0061<\/a><\/p>\n<p style=\"text-align: justify\">ESPINASSE, Bernard, BELLOT, Patrice, 2017. Introduction au Big Data \u2013 Opportunit\u00e9s, stockage et analyse des m\u00e9gadonn\u00e9es. <em>Techniques de l\u2019ing\u00e9nieur <\/em>[en ligne]. 10.02.2017. [Consult\u00e9 le 30.10.2018]. Disponible \u00e0 l\u2019adresse\u00a0: <a href=\"https:\/\/www.techniques-ingenieur.fr\/base-documentaire\/innovation-th10\/les-technologies-numeriques-au-service-de-la-ville-et-de-la-personne-42674210\/introduction-au-big-data-h6040\/\">https:\/\/www.techniques-ingenieur.fr\/base-documentaire\/innovation-th10\/les-technologies-numeriques-au-service-de-la-ville-et-de-la-personne-42674210\/introduction-au-big-data-h6040\/<\/a> [acc\u00e8s par abonnement]\n<p style=\"text-align: justify\">FLORIDI, Luciano, 2010. The information revolution. In: <em>Information, A very short introduction<\/em>. New-York: Oxford University Press, 2010, 130 p. 978-0-19-955137-8<\/p>\n","protected":false},"excerpt":{"rendered":"<p>(Source\u00a0: https:\/\/www.azquotes.com\/quote\/579325) Isaac Asimov, \u00e9crivain de science-fiction de haute r\u00e9putation a cr\u00e9\u00e9 de toutes pi\u00e8ces, pour une s\u00e9rie de romans \u00e9crits dans les ann\u00e9es 50, une science appel\u00e9e psychohistoire. Celle-ci permettrait de pr\u00e9voir, par le calcul, les \u00e9volutions de la &hellip; <a href=\"https:\/\/campus.hesge.ch\/blog-master-is\/big-data-une-revolution-technologique-implicite\/\">Lire la suite\u00ad\u00ad<\/a><\/p>\n","protected":false},"author":7,"featured_media":209,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,15,12],"tags":[25,44,39,40,26,38,43,41,37],"class_list":["post-207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-big-data","category-information-donnees","category-reflexion-is","tag-big-data","tag-evolution-technologique","tag-fondation","tag-isaac-asimov","tag-luciano-floridi","tag-psychohistoire","tag-revolution-technologique","tag-the-information-revolution","tag-zettabyte"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Big Data : une (r)\u00e9volution technologique implicite - 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