1938 search results - page 39 / 388 » On Positive Relational Calculi |
ITNG
2010
IEEE
14 years 20 days ago
2010
IEEE
—There are different families of Spatio-temporal relations such as same-place same-time, same-place differenttimes, for road networks like overtake, derive beside and many others...
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Global Positioning System (GPS) Technology allows precise determination of location, velocity, direction, and time. The price of GPS receivers is falling rapidly and the applicatio...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
This paper introduces U-relations, a succinct and purely relational representation system for uncertain databases. U-relations support attribute-level uncertainty using vertical pa...
STOC
1998
ACM
13 years 11 months ago
1998
ACM
In the k-median problem we are given a set S of n points in a metric space and a positive integer k. We desire to locate k medians in space, such that the sum of the distances fro...
MBEC
2010
13 years 2 months ago
2010
Over the last years, inertial sensing has proven to be a suitable ambulatory alternative to traditional human motion tracking based on optical position measurement systems, which a...