BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//LORIA - ECPv6.17.2//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:LORIA
X-ORIGINAL-URL:https://www.loria.fr
X-WR-CALDESC:Évènements pour LORIA
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Paris
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20200329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20201025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20210328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20211031T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20221030T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20210423T150000
DTEND;TZID=Europe/Paris:20210423T163000
DTSTAMP:20210416T094508Z
CREATED:20210416T094459Z
LAST-MODIFIED:20210416T094508Z
UID:12079-1619190000-1619195400@www.loria.fr
SUMMARY:HDR defense - Claudia Ignat (Coast)
DESCRIPTION:Claudia Ignat (Coast team) will defend her HDR (Habilitation à Diriger des Recherches)\, entitled « Large-scale trustworthy distributed collaborative systems » on Friday April 23 at 3pm. The defense will be held in English. \n \nShort abstract: \nMost existing collaborative systems rely on a central authority and place personal information in the hands of a single large corporation which is a perceived privacy threat. Moreover\, these systems do not scale well in terms of the number of users and their modifications. My research work aims to move away from centralized authority-based collaboration towards a large scale trust-based peer-to-peer collaboration where control over data is given to users who can decide with whom to share their data. The main advantages of peer-to-peer collaborative systems are high scalability and resilience to faults and attacks. \nFirst\, I describe my contributions to the design and evaluation of optimistic data replication algorithms. I also present my work on group awareness specifically on what information should be provided to users to prevent conflicting changes and to understand divergence when conflicts cannot be avoided. \nSecondly\, I describe my contributions on large scale trustworthy collaboration. I present a contract-based collaboration model where contracts are specified by the data owners when they share the data and user trust is assessed according to the observation of adherence to or violation of contracts. For testing the proposed trust-based collaboration model\, I designed a user experiment employing trust game and relying on a computational trust metric according to user exchanges in this game. \nFinally\, I present my future research directions on secure and trustworthy collaborative data management. \nKeywords: distributed collaborative systems\, operational transformation\, CRDT\, group awareness\, trust\, contract-based collaboration\, authenticated logs\, trust game\, user studies \nMore details are available here \nJury members\nReviewers\nPrasun DEWAN\, Professor at University of North Carolina at Chapel Hill\nValerie ISSARNY\, Director of research at Inria\nFrançois TAIANI\, Professor at Université de Rennes I \nExaminers\nSihem AMER-YAHIA\, Director of research at CNRS\nFrançois CHAROY\, Professor at Université de Lorraine\nIsabelle CHRISMENT\, Professor at Université de Lorraine\nFabien GANDON\, Director of research at Inria\nPascal MOLLI\, Professor at Université de Nantes
URL:https://www.loria.fr/event/habilitation-defense-claudia-ignat-coast/
CATEGORIES:HDR
END:VEVENT
END:VCALENDAR