Sciweavers

995 search results - page 141 / 199
» Optimization of Complex Nested Queries in Relational Databas...
Sort
View
SSDBM
1999
IEEE
118views Database» more  SSDBM 1999»
15 years 6 months ago
Evaluation of Ad Hoc OLAP: In-Place Computation
Large scale data analysis and mining activities, such as identifying interesting trends, making unusual patterns to stand out and verifying hypotheses, require sophisticated infor...
Damianos Chatziantoniou
BMCBI
2007
142views more  BMCBI 2007»
15 years 1 months ago
LinkHub: a Semantic Web system that facilitates cross-database queries and information retrieval in proteomics
nd: A key abstraction in representing proteomics knowledge is the notion of unique identifiers for individual entities (e.g. proteins) and the massive graph of relationships among...
Andrew K. Smith, Kei-Hoi Cheung, Kevin Y. Yip, Mar...
EDBT
2009
ACM
110views Database» more  EDBT 2009»
15 years 6 months ago
A sampling approach for XML query selectivity estimation
As the Extensible Markup Language (XML) rapidly establishes itself as the de facto standard for presenting, storing, and exchanging data on the Internet, large volume of XML data ...
Cheng Luo, Zhewei Jiang, Wen-Chi Hou, Feng Yu, Qia...
SIGMOD
2004
ACM
199views Database» more  SIGMOD 2004»
16 years 2 months ago
Approximate XML Query Answers
The rapid adoption of XML as the standard for data representation and exchange foreshadows a massive increase in the amounts of XML data collected, maintained, and queried over th...
Neoklis Polyzotis, Minos N. Garofalakis, Yannis E....
GIS
2009
ACM
15 years 6 months ago
A multidimensional model representing continuous fields in spatial data warehouses
Data warehouses and On-Line Analytical Processing (OLAP) provide an analysis framework supporting the decision making process. In many application domains, complex analysis tasks ...
Alejandro A. Vaisman, Esteban Zimányi