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» Constraints in spatial structures
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EDBT
2012
ACM
255views Database» more  EDBT 2012»
13 years 8 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...
JCSS
2000
71views more  JCSS 2000»
15 years 6 months ago
Path Constraints in Semistructured Databases
We investigate a class of path constraints that is of interest in connection with both semistructured and structured data. In standard database systems, constraints are typically ...
Peter Buneman, Wenfei Fan, Scott Weinstein
BMCBI
2010
259views more  BMCBI 2010»
15 years 1 months ago
Rule-based spatial modeling with diffusing, geometrically constrained molecules
Background: We suggest a new type of modeling approach for the coarse grained, particle-based spatial simulation of combinatorially complex chemical reaction systems. In our appro...
Gerd Gruenert, Bashar Ibrahim, Thorsten Lenser, Ma...
ICDE
2008
IEEE
140views Database» more  ICDE 2008»
16 years 7 months ago
Top-k Spatial Joins of Probabilistic Objects
Probabilistic data have recently become popular in applications such as scientific and geospatial databases. For images and other spatial datasets, probabilistic values can capture...
Vebjorn Ljosa, Ambuj K. Singh
SIGIR
2012
ACM
13 years 8 months ago
Explanatory semantic relatedness and explicit spatialization for exploratory search
Exploratory search, in which a user investigates complex concepts, is cumbersome with today’s search engines. We present a new exploratory search approach that generates interac...
Brent Hecht, Samuel Carton, Mahmood Quaderi, Johan...