Concept
Langage de requête
Publications associées (143)
Strabon: A Semantic Geospatial DBMS
We present Strabon, a new RDF store that supports the state of the art semantic geospatial query languages stSPARQL and GeoSPARQL. To illustrate the expressive power offered by these query languages and their implementation in Strabon, we concentrate on th ...
Springer Berlin Heidelberg2012MaSM: Efficient Online Updates in Data Warehouses
Anastasia Ailamaki, Manoussos Gavriil Athanassoulis, Radu Ioan Stoica
Data warehouses (DW) have been traditionally optimized for readonly query performance, allowing only offline updates at night, essentially trading off data freshness for performance. The need for 24x7 operations in global markets and the rise of online and ...
2011Compression with Graphical Constraints: An Interactive Browser
Amin Karbasi, Morteza Zadimoghaddam
We study the problem of navigating/searching through a database of objects with potentially different popularities using a membership oracle. The membership oracle, given a subset of objects , and a target object , determines whether contains ...
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011Method of data retrieval, and search engine using such a method
A method of data retrieval from a data repository in response to a query having either list of keywords and/or list of attribute-value pairs, the method comprising the steps of: providing an inverted index generated from the data repository, the inverted i ...
2011