{"id":164,"date":"2010-11-18T11:23:48","date_gmt":"2010-11-18T10:23:48","guid":{"rendered":"https:\/\/samovar2022.int-evry.fr\/index.php\/2010\/11\/18\/soutenance-these-de-jerome-sicard\/"},"modified":"2020-09-04T18:47:17","modified_gmt":"2020-09-04T16:47:17","slug":"soutenance-these-de-jerome-sicard","status":"publish","type":"post","link":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/2010\/11\/18\/soutenance-these-de-jerome-sicard\/","title":{"rendered":"SOUTENANCE : Th\u00e8se de J\u00e9r\u00f4me Sicard"},"content":{"rendered":"<p>mardi 23 novembre 2010<\/p>\n<p>\u00ab\u00a0<strong>Contributions \u00e0 la Mod\u00e9lisation, \u00c9valuation et Conception de Syst\u00e8mes de Recherche d&rsquo;Information en Pair-\u00e0-Pair<\/strong>\u00ab\u00a0.<\/p>\n<p>La soutenance aura lieu mardi 23 novembre 2010 partir de 11h00 en BL005 et sera suivie d&rsquo;un pot.<\/p>\n<p><strong>Composition du jury<\/strong> :<\/p>\n<p><strong>Rapporteurs<\/strong> :<br \/>\nMme.Claudia RONCANCIO Professeur \u00e0 l&rsquo;Institut Polytechnique de Grenoble &#8211; LIG<\/p>\n<p>M. Pascal MOLLI Professeur \u00e0 l&rsquo;Universit\u00e9 de Nantes &#8211; LINA<\/p>\n<p><strong>Examinateurs<\/strong> :<br \/>\nM. Bruno DEFUDE Directeur de Recherche \u00e0 T\u00c9L\u00c9COM SudParis &#8211; SAMOVAR<br \/>\n(Directeur de th\u00e8se et encadrant)<\/p>\n<p>M. Jean-Marc DELOSME Professeur \u00e0 l&rsquo;Universit\u00e9 d&rsquo;\u00c9vry &#8211; IBISC<br \/>\n(Pr\u00e9sident du jury)<\/p>\n<p>M. Michel BEIGBEDER Ma\u00eetre-assistant \u00e0 l&rsquo;ENS des Mines de Saint-Etienne  LSTI<\/p>\n<p><strong>Abstract<\/strong> :<\/p>\n<p>This PhD thesis develops an original vision of Peer-to-Peer Information<br \/>\nRetrieval Systems. Based on this vision, we propose a set of tools for a<br \/>\nbetter evaluation and conception of P2P-IR systems.<\/p>\n<p>Synthetically, on the one hand, evaluating means understanding which<br \/>\nsystem behaves well in which context ; how different components\/aspects<br \/>\nof a single system contribute to its performance ; how modifications of<br \/>\nthe system can make its performance evolve. On the other hand,<br \/>\nconsidering design of P2P-IR systems, we would like to be able to choose<br \/>\na P2P approach based on what is known about the context the application<br \/>\nwill execute in (data set, network properties&#8230;) ; understand how to<br \/>\nmix P2P systems ; better control the impact of a modification of the<br \/>\nimplementation of a system on its behavior an performance.<\/p>\n<p>We believe those concerns of evaluation and design are strongly related.<br \/>\nThere is a common need to improve on both directions : better understand<br \/>\nthe architecture of P2P-IR systems. On the basis of our reflexion, we<br \/>\nconsider a P2P-IR system is the implementation in P2P of an IR system,<br \/>\nwhich contrasts with the traditional two-layered vision. We use this<br \/>\nidea to give a set of definitions that help better understand the<br \/>\ndifferent RI and P2P components of a single system and their<br \/>\nrelationships. We then show how this vision can be used to help design<br \/>\nnew systems.<\/p>\n<p><strong>R\u00e9sum\u00e9<\/strong> :<\/p>\n<p>Cette th\u00e8se se base sur une vision originale des syst\u00e8mes de Recherche<br \/>\nd&rsquo;Information en pair-\u00e0-pair (RI-P2P) ; pour proposer un ensemble<br \/>\nd&rsquo;outils pour mieux les \u00e9valuer et mieux les concevoir.<\/p>\n<p>Synth\u00e9tiquement, la probl\u00e9matique d&rsquo;\u00e9valuation consiste \u00e0 comprendre<br \/>\nquel syst\u00e8me fonctionne bien dans quelles conditions ; comment les<br \/>\ndiff\u00e9rents composants\/aspects d&rsquo;un syst\u00e8me contribuent \u00e0 ses<br \/>\nperformances ; comment des modifications du syst\u00e8me peuvent faire<br \/>\n\u00e9voluer ses performances. <\/p>\n<p>D&rsquo;un point de vue conception, on voudrait<br \/>\nsavoir choisir une approche P2P en fonction du contexte de l&rsquo;application<br \/>\n\u00e0 impl\u00e9menter (jeu de donn\u00e9es, propri\u00e9t\u00e9s du r\u00e9seau&#8230;) ; comprendre<br \/>\ncomment mixer des syst\u00e8mes ; mieux ma\u00eetriser l&rsquo;impact d&rsquo;une modification<br \/>\nde l&rsquo;impl\u00e9mentation sur le comportement et les performances d&rsquo;un syst\u00e8me.<\/p>\n<p>Nous pensons que ces deux probl\u00e9matiques d&rsquo;\u00e9valuation et de conception<br \/>\nsont fortement li\u00e9es. Un m\u00eame fondement est n\u00e9cessaire pour progresser dans ces deux sens : mieux comprendre l&rsquo;architecture des syst\u00e8mes RI-P2P. <\/p>\n<p>\u00c0 la base de notre r\u00e9flexion, nous consid\u00e9rons qu&rsquo;un syst\u00e8me<br \/>\nRI-P2P est l&rsquo;impl\u00e9mentation en P2P d&rsquo;un mod\u00e8le RI, id\u00e9e qui s&rsquo;oppose au mod\u00e8le traditionnel en deux couches. Nous nous appuyons sur cette id\u00e9e pour donner un ensemble de d\u00e9finitions qui permettent de mieux<br \/>\nappr\u00e9hender les diff\u00e9rents composants RI et composants P2P d&rsquo;un m\u00eame syst\u00e8me et la fa\u00e7on dont ils s&rsquo;organisent. <\/p>\n<p>Nous montrons ensuite comment on peut utiliser cette vision originale du domaine pour sp\u00e9cifier la d\u00e9marche d&rsquo;\u00e9valuation d&rsquo;un syst\u00e8me P2P et pour aider \u00e0 la conception de nouveaux syst\u00e8mes.<\/p>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>mardi 23 novembre 2010 \u00ab\u00a0Contributions \u00e0 la Mod\u00e9lisation, \u00c9valuation et Conception de Syst\u00e8mes de Recherche d&rsquo;Information en Pair-\u00e0-Pair\u00ab\u00a0. La soutenance aura lieu mardi 23 novembre 2010 partir de 11h00 en BL005 et sera suivie d&rsquo;un pot. Composition du jury : Rapporteurs : Mme.Claudia RONCANCIO Professeur \u00e0 l&rsquo;Institut Polytechnique de Grenoble &#8211; LIG M. Pascal MOLLI [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[7],"tags":[],"class_list":["post-164","post","type-post","status-publish","format-standard","hentry","category-uncategorized-fr","entry"],"_links":{"self":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/comments?post=164"}],"version-history":[{"count":1,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/164\/revisions"}],"predecessor-version":[{"id":2060,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/164\/revisions\/2060"}],"wp:attachment":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/media?parent=164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/categories?post=164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/tags?post=164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}