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KDD
1997
ACM
72views Data Mining» more  KDD 1997»
15 years 5 months ago
Detecting Atmospheric Regimes Using Cross-Validated Clustering
Low-frequency variability in geopotential height records of the Northern Hemisphere is a topic of significance in atmospheric science, having profound implications for climate mod...
Padhraic Smyth, Michael Ghil, Kayo Ide, Joseph Rod...
AAAI
2010
15 years 2 months ago
Reinforcement Learning via AIXI Approximation
This paper introduces a principled approach for the design of a scalable general reinforcement learning agent. This approach is based on a direct approximation of AIXI, a Bayesian...
Joel Veness, Kee Siong Ng, Marcus Hutter, David Si...
ECIS
2003
15 years 2 months ago
A session-based empirical investigation of web usage
This paper reports the results of a study of Web usage of 139 users over a 8 month period of time. It uses a longitudinal Web log analysis of the URLs accessed during 33916 user-d...
Mario Christ, Steffan Baron, Ramayya Krishnan, Dan...
SDM
2004
SIAM
229views Data Mining» more  SDM 2004»
15 years 2 months ago
R-MAT: A Recursive Model for Graph Mining
How does a `normal' computer (or social) network look like? How can we spot `abnormal' sub-networks in the Internet, or web graph? The answer to such questions is vital ...
Deepayan Chakrabarti, Yiping Zhan, Christos Falout...
JSC
2006
64views more  JSC 2006»
15 years 1 months ago
Computing the support of local cohomology modules
For a polynomial ring R = k[x1, ..., xn], we present a method to compute the characteristic cycle of the localization Rf for any nonzero polynomial f R that avoids a direct comput...
Josep Àlvarez Montaner, Anton Leykin