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» Aggregating time partitions
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GIS
2002
ACM
13 years 7 months ago
Aggregation and comparison of trajectories
Dealing with moving objects necessitates having available complete geographical traces for determining exact or possible locations that objects have had, have or will have. This i...
Nirvana Meratnia, Rolf A. de By
PODS
2001
ACM
120views Database» more  PODS 2001»
14 years 7 months ago
Database-friendly random projections
A classic result of Johnson and Lindenstrauss asserts that any set of n points in d-dimensional Euclidean space can be embedded into k-dimensional Euclidean space -- where k is lo...
Dimitris Achlioptas
HICSS
2007
IEEE
163views Biometrics» more  HICSS 2007»
14 years 1 months ago
On the Communication Architecture for Wide-Area Real-Time Monitoring in Power Networks
— Reliable and efficient operation of power networks is of paramount importance. In this paper we explore communication architectures that leverage Phasor Measurement Units (PMU...
Shrut Kirti, Zhifang Wang, Anna Scaglione, Robert ...
IDA
2007
Springer
13 years 7 months ago
WWW traffic measure and its properties
Abstract. We present a method to extract a time series (Number of Active Requests (NAR)) from web cache logs which serves as a transport level measurement of internet traffic. This...
Marcus R. Keogh-Brown, Barbara Bogacka
ICDE
2001
IEEE
115views Database» more  ICDE 2001»
14 years 8 months ago
Incremental Computation and Maintenance of Temporal Aggregates
We consider the problems of computing aggregation queries in temporal databases, and of maintaining materialized temporal aggregate views efficiently. The latter problem is partic...
Jun Yang 0001, Jennifer Widom