Sciweavers

285 search results - page 33 / 57
» Hierarchical Indexing Approach to Support XPath Queries
Sort
View
WIDM
2005
ACM
14 years 1 months ago
Exploiting native XML indexing techniques for XML retrieval in relational database systems
In XML retrieval, two distinct approaches have been established and pursued without much cross-fertilization taking place so far. On the one hand, native XML databases tailored to...
Felix Weigel, Klaus U. Schulz, Holger Meuss
ICDE
2007
IEEE
182views Database» more  ICDE 2007»
14 years 9 months ago
DIKNN: An Itinerary-based KNN Query Processing Algorithm for Mobile Sensor Networks
Current approaches to K Nearest Neighbor (KNN) search in mobile sensor networks require certain kind of indexing support. This index could be either a centralized spatial index or...
Shan-Hung Wu, Kun-Ta Chuang, Chung-Min Chen, Ming-...
EDBT
2004
ACM
187views Database» more  EDBT 2004»
14 years 7 months ago
Hierarchical In-Network Data Aggregation with Quality Guarantees
Earlier work has demonstrated the effectiveness of in-network data aggregation in order to minimize the amount of messages exchanged during continuous queries in large sensor netwo...
Antonios Deligiannakis, Yannis Kotidis, Nick Rouss...
CVPR
2007
IEEE
14 years 1 months ago
Hierarchical Structuring of Data on Manifolds
Manifold learning methods are promising data analysis tools. However, if we locate a new test sample on the manifold, we have to find its embedding by making use of the learned e...
Jun Li, Pengwei Hao
EDBT
2009
ACM
156views Database» more  EDBT 2009»
14 years 5 days ago
Secondary bitmap indexes with vertical and horizontal partitioning
Traditional bitmap indexes are utilized as a special type of primary or clustered indexes where the queries are answered by performing fast logical operations supported by hardwar...
Guadalupe Canahuate, Tan Apaydin, Ahmet Sacan, Hak...