{"id":886,"date":"2017-05-12T11:41:07","date_gmt":"2017-05-12T09:41:07","guid":{"rendered":"https:\/\/samovar2022.int-evry.fr\/index.php\/2017\/05\/12\/seminaire-transverse-samovar-presente-par-vincent-leroy-univ-grenoble-le-29-05-2017-a-14h-en-g09\/"},"modified":"2020-09-04T18:46:09","modified_gmt":"2020-09-04T16:46:09","slug":"seminaire-transverse-samovar-presente-par-vincent-leroy-univ-grenoble-le-29-05-2017-a-14h-en-g09","status":"publish","type":"post","link":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/2017\/05\/12\/seminaire-transverse-samovar-presente-par-vincent-leroy-univ-grenoble-le-29-05-2017-a-14h-en-g09\/","title":{"rendered":"S\u00e9minaire transverse SAMOVAR, pr\u00e9sent\u00e9 par Vincent Leroy (Univ. Grenoble), le 29\/05\/2017 \u00e0 14h en G09"},"content":{"rendered":"<p>S\u00e9minaire transverse SAMOVAR<\/p>\n<p><strong>Quand :<\/strong> lundi 29 mai 2017 \u00e0 14h00<br \/>\n<strong>O\u00f9 :<\/strong> salle G09, T\u00e9l\u00e9com SudParis, Evry.<\/p>\n<p>Dr. Vincent Leroy (Universit\u00e9 de Grenoble)<\/p>\n<p><strong>Title:<\/strong> Debugging applications: a data mining approach<\/p>\n<p><strong>Abstract:<\/strong><br \/>\nDebugging applications can be a tedious task. Traditional test methods focus<br \/>\non identifying functional bugs in which a function outputs an erroneous value.<br \/>\nHowever, more subtle bugs can occur in concurrent systems, such as a function<br \/>\ncall in a video decoding application occasionally missing its deadline and<br \/>\ncausing a visual artifact. In this seminar, I will show how data mining can<br \/>\nhelp developers better understand these issues.<br \/>\nIn the first part of this presentation, I will consider the case of embedded<br \/>\nsystems and multimedia applications. The developer first records a trace of<br \/>\nthe application, containing both normal activity and misbehaviors. Our<br \/>\nframework, using a combination of clustering and pattern mining, identifies<br \/>\nerroneous activities and finds which system behavior they are correlated to.<br \/>\nThe second part of the presentation will focus on model checking. In this<br \/>\ncase, the developer can ask a solver to verify a property (such as B is never<br \/>\nexecuted after A), and the solver usually returns a counter-example trace<br \/>\ncontaining hundreds of events. Our approach, based on execution graph<br \/>\nanalysis, generalizes and abstracts counter-examples to help developers focus<br \/>\non the key parts of their program that really impact the bug.<\/p>\n<p><strong>Biographie:<\/strong><br \/>\nVincent Leroy is an associate professor at the University of Grenoble. He is a<br \/>\npermanent member of the Scalable Information Discovery and Exploitation<br \/>\n(SLIDE) research group. He earned a Masters degree in computer science from<br \/>\nINSA Rennes, France in 2007 and a PhD degree on large-scale distributed<br \/>\nsystems for social applications from Inria Rennes, France, in 2010. From 2010<br \/>\nto 2012, he worked on distributed search engines at Yahoo! Research Labs in<br \/>\nBarcelona, Spain. Vincent&rsquo;s research interests lie at the intersection of<br \/>\ndistributed system and large-scale data management; he builds scalable<br \/>\nalgorithms and systems to analyze data produced by a variety of real-world<br \/>\napplications.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>S\u00e9minaire transverse SAMOVAR Quand : lundi 29 mai 2017 \u00e0 14h00 O\u00f9 : salle G09, T\u00e9l\u00e9com SudParis, Evry. Dr. Vincent Leroy (Universit\u00e9 de Grenoble) Title: Debugging applications: a data mining approach Abstract: Debugging applications can be a tedious task. Traditional test methods focus on identifying functional bugs in which a function outputs an erroneous value. 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