Sciweavers

104 search results - page 6 / 21
» Range queries over skip tree graphs
Sort
View
JOLLI
2010
94views more  JOLLI 2010»
13 years 5 months ago
Querying Linguistic Trees
Large databases of linguistic annotations are used for testing linguistic hypotheses and for training language processing models. These linguistic annotations are often syntactic ...
Catherine Lai, Steven Bird
ICDT
2009
ACM
105views Database» more  ICDT 2009»
14 years 8 months ago
Efficient data structures for range-aggregate queries on trees
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...
Hao Yuan, Mikhail J. Atallah
COMPGEOM
2010
ACM
14 years 16 days ago
A dynamic data structure for approximate range searching
In this paper, we introduce a simple, randomized dynamic data structure for storing multidimensional point sets, called a quadtreap. This data structure is a randomized, balanced ...
David M. Mount, Eunhui Park
TKDE
2010
218views more  TKDE 2010»
13 years 2 months ago
LIGHT: A Query-Efficient Yet Low-Maintenance Indexing Scheme over DHTs
DHT is a widely used building block for scalable P2P systems. However, as uniform hashing employed in DHTs destroys data locality, it is not a trivial task to support complex queri...
Yuzhe Tang, Shuigeng Zhou, Jianliang Xu
PODS
2006
ACM
216views Database» more  PODS 2006»
14 years 7 months ago
Cache-oblivious string B-trees
B-trees are the data structure of choice for maintaining searchable data on disk. However, B-trees perform suboptimally ? when keys are long or of variable length, ? when keys are...
Michael A. Bender, Martin Farach-Colton, Bradley C...