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TNN
2010
216views Management» more  TNN 2010»
14 years 11 months ago
Simplifying mixture models through function approximation
Finite mixture model is a powerful tool in many statistical learning problems. In this paper, we propose a general, structure-preserving approach to reduce its model complexity, w...
Kai Zhang, James T. Kwok
SIGMOD
2005
ACM
194views Database» more  SIGMOD 2005»
15 years 9 months ago
STRG-Index: Spatio-Temporal Region Graph Indexing for Large Video Databases
In this paper, we propose new graph-based data structure and indexing to organize and retrieve video data. Several researches have shown that a graph can be a better candidate for...
JeongKyu Lee, Jung-Hwan Oh, Sae Hwang
ICMCS
2005
IEEE
101views Multimedia» more  ICMCS 2005»
15 years 9 months ago
A Comparison of Subjective Picture Quality with Objective Measure Using Subjective Spatial Frequency
Recently, not only still pictures but also moving pictures are displayed on the PDAs or cellular phones. When we take a look such pictures, the picture quality seems to be better ...
Yasushi Sugama, Takahiro Yoshida, Takayuki Hamamot...
ICWSM
2010
15 years 5 months ago
Tweeting from the Town Square: Measuring Geographic Local Networks
This paper examines tweets about two geographically local events--a shooting and a building collapse--that took place in Wichita, Kansas and Atlanta, Georgia, respectively. Most I...
Sarita Yardi, Danah Boyd
ICASSP
2010
IEEE
15 years 4 months ago
Analysis of phone posterior feature space exploiting class-specific sparsity and MLP-based similarity measure
Class posterior distributions have recently been used quite successfully in Automatic Speech Recognition (ASR), either for frame or phone level classification or as acoustic featu...
Afsaneh Asaei, Benjamin Picart, Hervé Bourl...