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CORR
2010
Springer
120views Education» more  CORR 2010»
13 years 3 months ago
LRM-Trees: Compressed Indices, Adaptive Sorting, and Compressed Permutations
LRM-Trees are an elegant way to partition a sequence of values into sorted consecutive blocks, and to express the relative position of the first element of each block within a prev...
Jérémy Barbay, Johannes Fischer
ESWS
2007
Springer
14 years 2 months ago
An Architecture to Discover and Query Decentralized RDF Data
In this paper we describe a distributed architecture consisting of a combination of scripting tools that interact with each other in order to help to find and query decentralized ...
Uldis Bojars, Alexandre Passant, Frederick Giasson...
IDEAS
2003
IEEE
100views Database» more  IDEAS 2003»
14 years 1 months ago
Querying XML Data by the Nested Relational Sequence Database System
In this concise paper, we present the Nested Relational Sequence Model (NRSM), which is an extension of the Nested Relational Data Model in order to handle XML data. We also intro...
Ho Lam Lau, Wilfred Ng
GIS
2008
ACM
13 years 9 months ago
Heuristic algorithms for route-search queries over geographical data
In a geographical route search, given search terms, the goal is to find an effective route that (1) starts at a given location, (2) ends at a given location, and (3) travels via...
Yaron Kanza, Eliyahu Safra, Yehoshua Sagiv, Yerach...
IJCAI
2003
13 years 9 months ago
Logic Programs for Consistently Querying Data Integration Systems
We solve the problem of obtaining answers to queries posed to a mediated integration system un­ der the local-as-view paradigm that are consistent wrt to certain global integrity...
Loreto Bravo, Leopoldo E. Bertossi