Sciweavers

2853 search results - page 286 / 571
» On the Efficiency of Provenance Queries
Sort
View
SIGMOD
2011
ACM
297views Database» more  SIGMOD 2011»
14 years 9 months ago
Graph cube: on warehousing and OLAP multidimensional networks
We consider extending decision support facilities toward large sophisticated networks, upon which multidimensional attributes are associated with network entities, thereby forming...
Peixiang Zhao, Xiaolei Li, Dong Xin, Jiawei Han
ICDE
1999
IEEE
101views Database» more  ICDE 1999»
16 years 8 months ago
Index Merging
Indexes play a vital role in decision support systems by reducing the cost of answering complex queries. A popular methodology for choosing indexes that is adopted by database adm...
Surajit Chaudhuri, Vivek R. Narasayya
SIGMOD
2007
ACM
150views Database» more  SIGMOD 2007»
16 years 6 months ago
System design issues in sensor databases
In-network sensor query processing systems (ISQPs), or sensor databases, have been developed to acquire, process and aggregate data from wireless sensor networks (WSNs). Because W...
Qiong Luo, Hejun Wu
SIGMOD
2003
ACM
1527views Database» more  SIGMOD 2003»
16 years 6 months ago
XPRESS: A Queriable Compression for XML Data
Like HTML, many XML documents are resident on native file systems. Since XML data is irregular and verbose, the disk space and the network bandwidth are wasted. To overcome the ve...
Jun-Ki Min, Myung-Jae Park, Chin-Wan Chung
ICDE
2010
IEEE
243views Database» more  ICDE 2010»
16 years 6 months ago
Probabilistic Contextual Skylines
The skyline query returns the most interesting tuples according to a set of explicitly defined preferences among attribute values. This work relaxes this requirement, and allows us...
Anastasios Arvanitis, Dimitris Sacharidis, Timos K...