Sciweavers

6 search results - page 1 / 2
» Grid-Aware Evaluation of Regular Path Queries on Spatial Net...
Sort
View
AINA
2007
IEEE
13 years 10 months ago
Grid-Aware Evaluation of Regular Path Queries on Spatial Networks
Regular path queries (RPQs), expressed as regular expressions over the alphabet of database edge-labels, are commonly used for guided navigation of graph databases. While convenie...
Zhuo Miao, Dan C. Stefanescu, Alex Thomo
ICDE
2003
IEEE
209views Database» more  ICDE 2003»
14 years 5 months ago
An Evaluation of Regular Path Expressions with Qualifiers against XML Streams
This paper presents SPEX, a streamed and progressive evaluation of regular path expressions with XPath-like qualifiers against XML streams. SPEX proceeds as follows. An expression...
Dan Olteanu, François Bry, Tobias Kiesling
EDBTW
2006
Springer
13 years 8 months ago
Enhanced Regular Path Queries on Semistructured Databases
Regular path queries are the basic navigational component of virtually all the mechanisms for querying semistructured data commonly found in information integration applications, W...
Dan C. Stefanescu, Alex Thomo
EDBT
2012
ACM
255views Database» more  EDBT 2012»
11 years 6 months ago
Top-k spatial keyword queries on road networks
With the popularization of GPS-enabled devices there is an increasing interest for location-based queries. In this context, one interesting problem is processing top-k spatial key...
João B. Rocha-Junior, Kjetil Nørv&ar...
VLDB
2004
ACM
187views Database» more  VLDB 2004»
13 years 9 months ago
Voronoi-Based K Nearest Neighbor Search for Spatial Network Databases
A frequent type of query in spatial networks (e.g., road networks) is to find the K nearest neighbors (KNN) of a given query object. With these networks, the distances between ob...
Mohammad R. Kolahdouzan, Cyrus Shahabi