Lifo - Laboratoire d'Informatique Fondamentale d'orléans INSA Centre Val de Loire Université d'Orléans Université d'Orléans

Lifo > LIFO Research Report for Year 2016

 Site en Français



Contact

LIFO - Bâtiment IIIA
Rue Léonard de Vinci
B.P. 6759
F-45067 ORLEANS Cedex 2

Email: contact.lifo
Tel: +33 (0)2 38 41 70 11
Fax: +33 (0)2 38 41 71 37



Go to Research Reports of Year : 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

LIFO Research Report for Year 2016


RR-2016-01 Projet scientifique de la fédération Informatique Centre Val-de-Loire (ICVL)
Mirian Halfeld Ferrari Alves (LIFO) et Agata Savary (LI)
Date : 2016-09-07
Abstract Download

RR-2016-02 Querying Semantic Graph Databases in View of Constraints and Provenance
Jacques Chabin, Mirian Halfeld Ferrari, Thanh Binh Nguyen
Date : 2016-07-07
Abstract Download


Abstracts of Research Reports


RR-2016-01 Projet scientifique de la fédération Informatique Centre Val-de-Loire (ICVL)
Mirian Halfeld Ferrari Alves (LIFO) et Agata Savary (LI)
Abstract :
Keywords :

RR-2016-02 Querying Semantic Graph Databases in View of Constraints and Provenance
Jacques Chabin, Mirian Halfeld Ferrari, Thanh Binh Nguyen
Abstract : This paper focus on query semantics on a graph database with constraints defined over a global schema and confidence scores as- signed to the local data sources (which compose a distributed graph instance). Our query environment is customizable and user-friendly: it is settled on the basis of data source confidence and user’s quality re- strictions. These constraints are on queries not on sources. Inconsistent data is filtered, allowing the production of valid results even when data quality cannot be entirely ensured by sources. We elaborate on the pro- cess of validating answers to the queries against positive, negative and key constraints. Our validator can interact with divers lower-level query evaluation methods.
Keywords : semantic data graph, constraint, personalization, provenance