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AAAI
2007
15 years 7 months ago
COD: Online Temporal Clustering for Outbreak Detection
We present Cluster Onset Detection (COD), a novel algorithm to aid in detection of epidemic outbreaks. COD employs unsupervised learning techniques in an online setting to partiti...
Tomás Singliar, Denver Dash
IJCAI
2007
15 years 6 months ago
Detect and Track Latent Factors with Online Nonnegative Matrix Factorization
Detecting and tracking latent factors from temporal data is an important task. Most existing algorithms for latent topic detection such as Nonnegative Matrix Factorization (NMF) h...
Bin Cao, Dou Shen, Jian-Tao Sun, Xuanhui Wang, Qia...
141
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FLAIRS
2004
15 years 6 months ago
Mining On-line Sources for Definition Knowledge
Finding definitions in huge text collections is a challenging problem, not only because of the many ways in which definitions can be conveyed in natural language texts but also be...
Horacio Saggion, Robert J. Gaizauskas
ECIS
2003
15 years 6 months ago
Using online services in untrusted environments: a privacy-preserving architecture
While online service providers are sometimes accused of forwarding identifying customer information as name and address to untrusted third parties, comparatively little attention ...
Claus Boyens, Oliver Günther
SODA
2003
ACM
102views Algorithms» more  SODA 2003»
15 years 6 months ago
Online paging with arbitrary associativity
We tackle the problem of online paging on two level memories with arbitrary associativity (including victim caches, skewed caches etc.). We show that some important classes of pag...
Enoch Peserico