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» TEDI: efficient shortest path query answering on graphs
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SIGMOD
2004
ACM
121views Database» more  SIGMOD 2004»
14 years 6 months ago
An Optimal Algorithm for Querying Tree Structures and its Applications in Bioinformatics
Trees and graphs are widely used to model biological databases. Providing efficient algorithms to support tree-based or graph-based querying is therefore an important issue. In th...
Hsiao-Fei Liu, Ya-Hui Chang, Kun-Mao Chao
ICDT
2009
ACM
105views Database» more  ICDT 2009»
14 years 7 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
VLDB
2008
ACM
103views Database» more  VLDB 2008»
14 years 6 months ago
The optimal sequenced route query
Several variations of nearest neighbor (NN) query have been investigated by the database community. However, realworld applications often result in the formulation of new variatio...
Mehdi Sharifzadeh, Mohammad R. Kolahdouzan, Cyrus ...
CIKM
2007
Springer
13 years 10 months ago
A fast unified optimal route query evaluation algorithm
We investigate the problem of how to evaluate, fast and efficiently, classes of optimal route queries on a massive graph in a unified framework. To evaluate a route query effectiv...
Edward P. F. Chan, Jie Zhang
ICDE
2009
IEEE
219views Database» more  ICDE 2009»
14 years 8 months ago
Distance Oracles for Spatial Networks
The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as finding s...
Jagan Sankaranarayanan, Hanan Samet