Français Anglais
Accueil Annuaire Plan du site
Accueil > Evenements > Séminaires
Entity Resolution for Big Data
Themis Palpanas

19 December 2012, 11:00 - 19 December 2012, 13:00
Salle/Bat : 445/PCRI-N
Contact : jesus.camacho-rodriguez@lri.fr

Activités de recherche :

Résumé :
Highly heterogeneous data have boomed during the last decade, due to their largely distributed way of production: corporations of any size, individual users as well as automatic extraction tools have contributed a constantly increasing volume of heterogeneous and noisy information. Entity Resolution (ER) helps to reduce the corresponding entropy by identifying those pieces of information that refer to the same real-world objects.

Typically, blocking techniques are used to scale ER to large volumes of data. However, most of these techniques rely on schema information and are inapplicable to highly heterogeneous settings. Our work goes beyond existing blocking techniques, by introducing a novel methodology that is inherently crafted for voluminous, highly heterogeneous, and noisy data collections.

At the core of our approach lie three independent, but complementary steps: block-building (using redundant block assignments for effectiveness), meta-blocking (reducing the number of necessary blocks), and block processing (increasing efficiency of ER operations). Our experimental evaluation with three large-scale, real-world data sets demonstrates that our methodology can successfully handle very large and highly heterogeneous datasets, achieving an excellent balance between effectiveness and efficiency.

Pour en savoir plus :
Séminaires
Langage d'icônes et visualisation d'ensembles : mé
Thursday 24 October 2019 - 14:30
Salle : 475 - PCRI-N
Jean-Baptiste Lamy .............................................

Matchings and related structures with Specified Co
Graph Theory
Thursday 17 October 2019 - 14:30
Salle : 445 - PCRI-N
Yannis Manoussakis .............................................

Conservation of structural long-range modules in R
Thursday 17 October 2019 - 14:30
Salle : 475 - PCRI-N
Vladimir Reinharz .............................................

Overcoming interference in the beeping communicati
Distributed algorithms
Friday 11 October 2019 - 14:30
Salle : 445 - PCRI-N
Fabien Dufoulon .............................................

Local checkability: a notion that started in the c
Distributed algorithms
Tuesday 08 October 2019 - 11:00
Salle : 465 - PCRI-N
Prof. Kutten Shay .............................................