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ICPR
2008
IEEE
16 years 1 months ago
An online polygonal approximation of digital signals and curves with Dynamic Programming algorithm
A fast online algorithm was developed for polygonal approximation of signals and curves with a minimum number of line segments for a given constraint on the standard deviation of ...
Alexander Kolesnikov
SODA
2004
ACM
173views Algorithms» more  SODA 2004»
15 years 8 months ago
Tabulation based 4-universal hashing with applications to second moment estimation
We show that 4-universal hashing can be implemented efficiently using tabulated 4-universal hashing for characters, gaining a factor of 5 in speed over the fastest existing method...
Mikkel Thorup, Yin Zhang
WSDM
2012
ACM
301views Data Mining» more  WSDM 2012»
14 years 2 months ago
Learning evolving and emerging topics in social media: a dynamic nmf approach with temporal regularization
As massive repositories of real-time human commentary, social media platforms have arguably evolved far beyond passive facilitation of online social interactions. Rapid analysis o...
Ankan Saha, Vikas Sindhwani
SDM
2009
SIAM
191views Data Mining» more  SDM 2009»
16 years 3 months ago
Adaptive Concept Drift Detection.
An established method to detect concept drift in data streams is to perform statistical hypothesis testing on the multivariate data in the stream. Statistical decision theory off...
Anton Dries, Ulrich Rückert
ICCSA
2004
Springer
16 years 3 hour ago
XCRAB: A Content and Annotation-Based Multimedia Indexing and Retrieval System
During recent years, a new framework, which aims to bring a unified and global approach in indexing, browsing and querying various digital multimedia data such as audio, video and ...
Seungmin Rho, SooCheol Lee, Eenjun Hwang, YangKyoo...