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» Algorithms for Querying by Spatial Structure
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IGIS
1994
156views GIS» more  IGIS 1994»
15 years 9 months ago
Optimizing Spatial Data Structures For Static Data
During the last decade various spatial data structures have been designed and compared against each other, all of them re ecting a dynamic situation with ongoing object insertion a...
Lukas Bachmann, Bernd-Uwe Pagel, Hans-Werner Six
DBISP2P
2005
Springer
132views Database» more  DBISP2P 2005»
15 years 7 months ago
Publish/Subscribe with RDF Data over Large Structured Overlay Networks
Abstract. We study the problem of evaluating RDF queries over structured overlay networks. We consider the publish/subscribe scenario where nodes subscribe with long-standing queri...
Erietta Liarou, Stratos Idreos, Manolis Koubarakis
GIR
2006
ACM
15 years 11 months ago
Associating spatial patterns to text-units for summarizing geographic information
Retrieving data based not only on key words is a challenge. We worked on semi-structured data (cultural heritage corpora). Our project aimed at getting the most relevant text-unit...
Julien Lesbegueries, Christian Sallaberry, Mauro G...
158
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SSD
2005
Springer
108views Database» more  SSD 2005»
15 years 10 months ago
On Trip Planning Queries in Spatial Databases
In this paper we discuss a new type of query in Spatial Databases, called the Trip Planning Query (TPQ). Given a set of points of interest P in space, where each point belongs to ...
Feifei Li, Dihan Cheng, Marios Hadjieleftheriou, G...
ICDE
2006
IEEE
196views Database» more  ICDE 2006»
16 years 6 months ago
Closure-Tree: An Index Structure for Graph Queries
Graphs have become popular for modeling structured data. As a result, graph queries are becoming common and graph indexing has come to play an essential role in query processing. ...
Huahai He, Ambuj K. Singh