77 search results - page 13 / 16 » Foundations of SPARQL Query Optimization |
GIS
2007
ACM
14 years 1 months ago
2007
ACM
A frequent query in geospatial planning and decision making domains (e.g., emergency response, data acquisition, street cleaning), is to find an optimal traversal plan (OTP) that ...
WWW
2003
ACM
14 years 10 months ago
2003
ACM
XML Schema has emerged as a promising data model that unites structured and unstructured content. The Oracle database has led the commercial database community in integrating supp...
GIS
2010
ACM
13 years 7 months ago
2010
ACM
Social networking applications have become very important web services that provide Internet-based platforms for their users to interact with their friends. With the advances in t...
MOBIDE
2009
ACM
14 years 4 months ago
2009
ACM
The explosive growth of location-detection devices, wireless communications, and mobile databases has resulted in the realization of location-based services as commercial products...
ICDE
1997
IEEE
14 years 11 months ago
1997
IEEE
We propose a data model and a few algebraic operations that provide semantic foundation to multidimensional databases. The distinguishing feature of the proposed model is the symm...