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ICML
2009
IEEE
14 years 6 months ago
Detecting the direction of causal time series
We propose a method that detects the true direction of time series, by fitting an autoregressive moving average model to the data. Whenever the noise is independent of the previou...
Arthur Gretton, Bernhard Schölkopf, Dominik J...
GIS
2004
ACM
14 years 6 months ago
Supporting spatial aggregation in sensor network databases
Sensor networks are unattended deeply distributed systems whose schema can be conceptualized using the relational model. Aggregation queries on the data sampled at each ode are th...
Mehdi Sharifzadeh, Cyrus Shahabi
ADBIS
2006
Springer
181views Database» more  ADBIS 2006»
13 years 11 months ago
Searching for Similar Trajectories on Road Networks Using Spatio-temporal Similarity
In order to search similar moving object trajectories, the previously used methods focused on Euclidean distance and considered only spatial similarity. Euclidean distance is not a...
Jung-Rae Hwang, Hye-Young Kang, Ki-Joune Li
INFOCOM
2000
IEEE
13 years 9 months ago
A Predictability Analysis of Network Traffic
This paper assesses the predictability of network traffic by considering two metrics: (1) how far into the future a traffic rate process can be predicted with bounded error; (2) w...
Aimin Sang, San-qi Li
EPS
1998
Springer
13 years 9 months ago
Variable-Dimensional Optimization with Evolutionary Algorithms Using Fixed-Length Representations
This paper discusses a simple representation of variable-dimensional optimization problems for evolutionary algorithms. Although it was successfully applied to the optimization of ...
Joachim Sprave, Susanne Rolf