GIS
2007
ACM
15 years 19 days ago
2007
ACM
In this paper, we present an original network graph embedding to speed-up distance-range and k-nearest neighbor queries in (weighted) graphs. Our approach implements the paradigm ...
GIS
2007
ACM
15 years 19 days ago
2007
ACM
Continuous spatial queries posted within an environment of moving objects produce as their results a time-varying set of objects. In the most ambitious case both queries and data ...
GIS
2007
ACM
15 years 19 days ago
2007
ACM
Route planners request user input about preferred route characteristics in order to provide the user with the optimal route. Although navigators have a general idea about what con...
GIS
2007
ACM
15 years 19 days ago
2007
ACM
This paper presents an approach to visualize and analyze 3D building information models within virtual 3D city models. Building information models (BIMs) formalize and represent d...
GIS
2007
ACM
15 years 19 days ago
2007
ACM
We consider the problem of extracting a river network and a watershed hierarchy from a terrain given as a set of irregularly spaced points. We describe TerraStream, a "pipeli...
GIS
2007
ACM
15 years 19 days ago
2007
ACM
We present the GeoStar project at RPI, which researches various terrain (i.e., elevation) representations and operations thereon. This work is motivated by the large amounts of hi...
GIS
2007
ACM
15 years 19 days ago
2007
ACM
A major concern for large-scale deployment of location-based services (LBSs) is the potential abuse of their client location data, which may imply sensitive personal information. ...
ICDE
1995
IEEE
15 years 27 days ago
1995
IEEE
ICDE
1995
IEEE
15 years 27 days ago
1995
IEEE
?In a fuzzy relational database where a relation is a fuzzy set of tuples and ill-known data are represented by possibility distributions, nested fuzzy queries can be expressed in ...
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ICDE
1995
IEEE
15 years 27 days ago
1995
IEEE
We address the problem of providing integrated access to diverse and dynamic information sources. We explain how this problem di ers from the traditional database integration probl...