Sciweavers

958 search results - page 94 / 192
» Efficient data structures for range-aggregate queries on tre...
Sort
View
DMIN
2006
137views Data Mining» more  DMIN 2006»
14 years 11 months ago
Discovering of Frequent Itemsets with CP-mine Algorithm
Efficient algorithms to discover frequent patterns are crucial in data mining research. Several effective data structures, such as two-dimensional arrays, graphs, trees, and tries ...
Nuansri Denwattana, Yutthana Treewai
AMW
2009
14 years 11 months ago
Consistent Query Answering in Data Warehouses
Abstract. A Data Warehouse (DW) is a data repository that organizes and physically integrates data from multiple sources under special kinds of schemas. A DW is composed by a set o...
Leopoldo E. Bertossi, Loreto Bravo, Mónica ...
ISAAC
2004
Springer
112views Algorithms» more  ISAAC 2004»
15 years 3 months ago
Dynamic Tree Cross Products
Abstract. Range searching over tree cross products – a variant of classic range searching – recently has been introduced by Buchsbaum et al. (Proc. 8th ESA, vol. 1879 of LNCS, ...
Marcus Raitner
KDD
2004
ACM
168views Data Mining» more  KDD 2004»
15 years 10 months ago
Mining, indexing, and querying historical spatiotemporal data
In many applications that track and analyze spatiotemporal data, movements obey periodic patterns; the objects follow the same routes (approximately) over regular time intervals. ...
Nikos Mamoulis, Huiping Cao, George Kollios, Mario...
CCCG
2006
14 years 11 months ago
K-Nearest Neighbor Search using the Pyramid Technique
A k-nearest neighbor search algorithm for the Pyramid technique is presented. The Pyramid technique divides d-dimensional data space into 2d pyramids. Given a query point q, we in...
Bradford G. Nickerson, Qingxiu Shi