525 search results - page 20 / 105 » On Query Algebras for Probabilistic Databases |
DASFAA
2007
IEEE
14 years 4 months ago
2007
IEEE
Nearest-neighbor queries are an important query type for commonly used feature databases. In many different application areas, e.g. sensor databases, location based services or fac...
ADBIS
2005
Springer
14 years 3 months ago
2005
Springer
We present a query language called MDatalog, which is an extension of Datalog for multimodal deductive databases. We define modal relational algebras and give the seminaive evalua...
ASUNAM
2011
IEEE
12 years 9 months ago
2011
IEEE
—Users querying massive social networks or RDF databases are often not 100% certain about what they are looking for due to the complexity of the query or heterogeneity of the dat...
AMW
2009
13 years 11 months ago
2009
Conventional operators for data retrieval are either based on exact matching or on total order relationship among elements. Neither of them is appropriate to manage complex data, s...
FOIKS
2004
Springer
14 years 3 months ago
2004
Springer
Despite the fact that thousands of applications manipulate plans, there has been no work to date on managing large databases of plans. In this paper, we first propose a formal mod...