4084 search results - page 123 / 817 » Constraints in spatial structures |
131
click to vote
CHI
2003
ACM
16 years 5 months ago
2003
ACM
Manuals of technical devices are often not very helpful to the user. This study investigates the influence of spatial instructions versus linear step-by-step manuals on inexperien...
151
click to vote
SEMWEB
2009
Springer
15 years 11 months ago
2009
Springer
Abstract. In order to employ the Web as a medium for data and information integration, comprehensive datasets and vocabularies are required as they enable the disambiguation and al...
142
click to vote
SIGMOD
1998
ACM
15 years 9 months ago
1998
ACM
Two new spatial join operations, distance join and distance semijoin, are introduced where the join output is ordered by the distance betweenthe spatialattribute values ofthe join...
161
click to vote
GIS
1995
ACM
15 years 8 months ago
1995
ACM
An algorithm is presented to answer window queries in a quadtree-based spatial database environment by retrieving the covering blocks in the underlying spatial database. It works ...
122
click to vote
ENTCS
2007
15 years 5 months ago
2007
We discuss the tensions between intensionality and extensionality of spatial observations in distributed systems, showing that there are natural models where extensional observati...