Konstantinos KARANASOS
Author's posts
Feb 10
Sofian Maabout: Computation of Borders and Applications
14.00, Room 445 at PCRI Abstract Given a set of objects O and a boolean interest function q:2^O-> {true, false}, the border of 2^O is the set of extremal (minimal or maximal) subsets o of O s.t. q(o)=true. This concept is present in many contexts, e.g., maximal frequent itemsets, functional dependencies and partial matrialization of …
Permanent link to this article: https://team.inria.fr/oak/2012/02/10/sofian-maabout-computation-of-borders-and-applications/
Jan 27
Kostas Stefanidis: Contextual Database Preferences
14:00, Room 445 at PCRI Abstract As both the volume of data and the diversity of users accessing them increase, user preferences offer a useful means towards improving the relevance of the query results to the information needs of the specific user posing the query. In this talk, we will focus on enhancing preferences with …
Permanent link to this article: https://team.inria.fr/oak/2012/01/27/kostas-stefanidis-contextual-database-preferences/
Jan 25
Jorge Quiane: Managing Very Large Datasets in a Cloudy World
15:45, Room 445 at PCRI Abstract Nowadays, many enterprises and organizations are faced with large volumes of data that have to be analyzed in a per-day basis. In particular, scientific datasets are growing at unprecedented rates and are likely to continue growing to the order of Exabytes. These current needs of data management require applications …
Permanent link to this article: https://team.inria.fr/oak/2012/01/25/jorge-quiane-managing-very-large-datasets-in-a-cloudy-world/
Jan 20
Xiao Bai: Toward Distributed Search
14.00, Room 455 at PCRI Abstract The rapid increasing amount of data on the Web provides a huge source of information but makes efficient search more challenging. Distributing the search is appealing to improve both efficiency and scalability. In this talk, we first present, in the context of social tagging systems, two gossip-based approaches that …
Permanent link to this article: https://team.inria.fr/oak/2012/01/20/xiao-bai-toward-distributed-search/
Jan 16
DanaC 2012: RDF Data Management in the Amazon Cloud
RDF Data Management in the Amazon Cloud by Francesca Bugiotti, François Goasdoué, Zoi Kaoudi, and Ioana Manolescu in the DanaC 2012 workshop (collocated with EDBT/ICDT 2012)
Permanent link to this article: https://team.inria.fr/oak/2012/01/16/paper-accepted-in-danac-2012-workshop/
Nov 17
PhD defense of Marina Sahakyan
14.00 University Paris-Sud 11, building 650 (PCRI), room 435 “Main Memory XML Update Optimization: algorithms and experiments” Abstract XML projection is one of the main adopted optimization techniques for reducing memory consumption in XQuery in-memory engines. The main idea behind this technique is quite simple: given a query Q over an XML document D, instead …
Permanent link to this article: https://team.inria.fr/oak/2011/11/17/phd-defense-of-marina-sahakyan/
Oct 21
Irini Fundulaki: Heuristic based Query Optimisation for SPARQL
14:00, Room 445 at PCRI Abstract During the last decade we have witnessed an increase in the amount of semantic data. The so called Web of Data extents the current Web to a global data space connecting data from diverse domains. A central issue in such setting is the efficient support for storing, querying, and manipulating semantic RDF data. …
Permanent link to this article: https://team.inria.fr/oak/2011/10/21/irini-fundulaki-heuristic-based-query-optimisation-for-sparql/
