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» Finding Top-k Approximate Answers to Path Queries
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CIKM
2010
Springer
14 years 10 months ago
Fast and accurate estimation of shortest paths in large graphs
Computing shortest paths between two given nodes is a fundamental operation over graphs, but known to be nontrivial over large disk-resident instances of graph data. While a numbe...
Andrey Gubichev, Srikanta J. Bedathur, Stephan Seu...
89
Voted
DEBU
2010
108views more  DEBU 2010»
14 years 11 months ago
Weighted Set-Based String Similarity
Consider a universe of tokens, each of which is associated with a weight, and a database consisting of strings that can be represented as subsets of these tokens. Given a query st...
Marios Hadjieleftheriou, Divesh Srivastava
188
Voted
ICDE
2007
IEEE
110views Database» more  ICDE 2007»
16 years 1 months ago
Pointwise-Dense Region Queries in Spatio-temporal Databases
Applications such as traffic management and resource scheduling for location-based services commonly need to identify regions with high concentrations of moving objects. Such quer...
Jinfeng Ni, Chinya V. Ravishankar
SIGMOD
2004
ACM
121views Database» more  SIGMOD 2004»
15 years 11 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
99
Voted
COCOON
2001
Springer
15 years 4 months ago
A Space Saving Trick for Directed Dynamic Transitive Closure and Shortest Path Algorithms
We present a simple space saving trick that applies to many previous algorithms for transitive closure and shortest paths in dynamic directed graphs. In these problems, an update c...
Valerie King, Mikkel Thorup