Sciweavers

327 search results - page 33 / 66
» Efficiently querying rdf data in triple stores
Sort
View
COMAD
2008
13 years 10 months ago
Concurrency Control in Distributed MRA Index Structure
Answering aggregate queries like sum, count, min, max over regions containing moving objects is often needed for virtual world applications, real-time monitoring systems, etc. Sin...
Neha Singh, S. Sudarshan
ER
2003
Springer
148views Database» more  ER 2003»
14 years 1 months ago
Improving Query Performance Using Materialized XML Views: A Learning-Based Approach
We consider the problem of improving the efficiency of query processing on an XML interface of a relational database, for predefined query workloads. The main contribution of this ...
Ashish Shah, Rada Chirkova
ICDIM
2007
IEEE
14 years 15 days ago
Efficient XML storage based on DTM for read-oriented workloads
We propose an XML storage scheme based on Document Table Model (DTM) which expresses an XML document as a table form. When performing query processing on large scale XML data, XML...
Makoto Yui, Jun Miyazaki, Shunsuke Uemura, Hirokaz...
GIR
2006
ACM
14 years 2 months ago
Range-capable Distributed Hash Tables
In this paper, we present a novel indexing data structure called RDHT (Range capable Distributed Hash Table) derived from skip lists and specifically designed for storing and retr...
Alessandro Soro, Cristian Lai
SSDBM
1999
IEEE
113views Database» more  SSDBM 1999»
14 years 28 days ago
Multidimensional Indexing and Query Coordination for Tertiary Storage Management
In many scientific domains, experimental devices or simulation programs generate large volumes of data. The volumes of data may reach hundreds of terabytes and therefore it is imp...
Arie Shoshani, Luis M. Bernardo, Henrik Nordberg, ...