Stamatios ZAMPETAKIS
Author's posts
Sep 24
Stamatis Zampetakis’ PhD defense
On Monday, we had the pleasure to see one of our colleagues obtaining his PhD degree at the OAK Team. On September 21, Stamatis Zampetakis defended his PhD thesis entitled “Scalable algorithms for cloud-based Semantic Web data management”. After the defense, the attendees enjoyed the pot where Stamatis and his friends prepared several greek specialties. …
Permanent link to this article: https://team.inria.fr/oak/2015/09/24/stamatis-zampetakis-phd-defense/
Apr 01
First LINKS-OAK joint workshop
When:Friday, April 3, from 10.00 to 15.45 (approximately) Where:PCRI Building, room 445 PhD Student talks: Raphael Bonaque: Structured, Social and Semantic Search. Damian Bursztyn: Optimized reformulation query answering for RDF-S and/or DLLite-R. Radu Ciucanu: Learning Path Queries on Graph Databases. Paul Lagrée: A Network-Aware Approach for Searching As-You-Type and Personalizing Answers in Social Media. Katerina …
Permanent link to this article: https://team.inria.fr/oak/2015/04/01/first-links-oak-joint-workshop/
Mar 27
Helena Galhardas: Speeding up information extraction programs – a holistic optimizer and a learning-based approach to rank documents
When:Friday, March 27, at 14.00 Where:PCRI Building, room 445 Who: Helena Galhardas, INESC-ID and IST/University of Lisbon Title: Speeding up information extraction programs – a holistic optimizer and a learning-based approach to rank documents Abstract: A wealth of information produced by individuals and organisations is expressed in natural language text. Text lacks the explicit structure …
Permanent link to this article: https://team.inria.fr/oak/2015/03/27/helena-galhardas-speeding-up-information-extraction-programs-a-holistic-optimizer-and-a-learning-based-approach-to-rank-documents/
Mar 11
Cristina Sirangelo: Querying incomplete data
When: Thursday, March 12, at 10.30 Where: PCRI building, room 445 Who: Cristina Sirangelo, École Normale Supérieure de Cachan Title: Querying incomplete data Abstract: Data is incomplete when it contains missing/unknown information, or more generally when it is only partially available, e.g. because of restrictions on data access. Incompleteness is receiving a renewed interest as it is …
Permanent link to this article: https://team.inria.fr/oak/2015/03/11/cristina-sirangelo-querying-incomplete-data/
Feb 12
Nicoleta Preda: ANGIE in wonderland
When: Friday, February 13, at 14.00 Where: PCRI building, room 445 Who: Nicoleta Preda Title: ANGIE in wonderland Abstract: In recent years, several important content providers such as Amazon, Musicbrainz, IMDb, Geonames, Google, and Twitter, have chosen to export their data through Web services. To unleash the potential of these sources for new intelligent applications, the data has to …
Permanent link to this article: https://team.inria.fr/oak/2015/02/12/nicoleta-preda-angie-in-wonderland/
Feb 01
Paolo Papotti: Beyond declarative mapping and cleaning
When: Monday, February 2, at 14.00 Where: PCRI building, room 445 Who: Paolo Papotti Title: Beyond declarative mapping and cleaning Abstract: In the “big data” era, data integration is a popular activity both in academia and in industry. Integrating hundreds of heterogeneous sources on a daily basis requires a great amount of manual work in order to have data …
Permanent link to this article: https://team.inria.fr/oak/2015/02/01/paolo-papotti-beyond-declarative-mapping-and-cleaning/
Jan 27
CliqueSquare RDF platform on Hadoop available for download
We are pleased to announce the source code release of CliqueSquare, an RDF data management system based on Hadoop. CliqueSquare is a system for storing and querying large RDF graphs relying on Hadoop’s distributed file system (HDFS) and Hadoop’s MapReduce open-source implementation. It provides a novel partitioning and storage scheme that permits 1-level joins to …
Permanent link to this article: https://team.inria.fr/oak/2015/01/27/cliquesquare-rdf-platform-on-hadoop-available-for-download/
Jan 15
Puya – Hossein Vahabi: Social media and Blogging
When: Friday, January 16, at 14.00 Where: PCRI building, room 445 Who: Puya – Hossein Vahabi Title: Social media and Blogging Abstract: The talk will be focused on Social Media and Blogging. In particular I’ll present three different works: 1. A novel approach for as-you-type network-aware top-k keyword search over social media; 2. A novel approach to harness the …
Permanent link to this article: https://team.inria.fr/oak/2015/01/15/puya-hossein-vahabi-social-media-and-blogging/
Jan 15
Yanlei Diao: Supporting Scientific Analytics under Data Uncertainty and Query Uncertainty
When: Friday, January 16, at 10.00 Where: PCRI building, room 455 Who: Y. Diao Title: Supporting Scientific Analytics under Data Uncertainty and Query Uncertainty Abstract: Data management is becoming increasingly important in large-scale scientific applications such as computational astrophysics, severe weather monitoring, and genomics. In this talk, I present our recent work to address two major challenges raised by …
Permanent link to this article: https://team.inria.fr/oak/2015/01/15/yanlei-diao-supporting-scientific-analytics-under-data-uncertainty-and-query-uncertainty/
Dec 04
Yannis Velegrakis: On building more human query answering systems
When: Thursday, December 4, at 10.00 Where: PCRI building, room 455 Who: Y. Velegrakis Title: On building more human query answering systems Abstract: The underlying principle behind every query answering system is the existence of a query describing the information of interest. When this model is applied to non-expert users, two traditional issues become highly significant. The first is …
Permanent link to this article: https://team.inria.fr/oak/2014/12/04/yannis-velegrakis-on-building-more-human-query-answering-systems/
