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SDM
2011
SIAM
241views Data Mining» more  SDM 2011»
14 years 9 months ago
A Fast Algorithm for Sparse PCA and a New Sparsity Control Criteria
Sparse principal component analysis (PCA) imposes extra constraints or penalty terms to the standard PCA to achieve sparsity. In this paper, we first introduce an efficient algor...
Yunlong He, Renato Monteiro, Haesun Park
CVPR
2007
IEEE
16 years 8 months ago
An MRF and Gaussian Curvature Based Shape Representation for Shape Matching
Matching and registration of shapes is a key issue in Computer Vision, Pattern Recognition, and Medical Image Analysis. This paper presents a shape representation framework based ...
Pengdong Xiao, Nick Barnes, Tibério S. Caet...
WWW
2008
ACM
16 years 7 months ago
Modeling online reviews with multi-grain topic models
In this paper we present a novel framework for extracting the ratable aspects of objects from online user reviews. Extracting such aspects is an important challenge in automatical...
Ivan Titov, Ryan T. McDonald
WWW
2008
ACM
16 years 7 months ago
Tag-based social interest discovery
The success and popularity of social network systems, such as del.icio.us, Facebook, MySpace, and YouTube, have generated many interesting and challenging problems to the research...
Xin Li, Lei Guo, Yihong Eric Zhao
WWW
2008
ACM
16 years 7 months ago
Flickr tag recommendation based on collective knowledge
Online photo services such as Flickr and Zooomr allow users to share their photos with family, friends, and the online community at large. An important facet of these services is ...
Börkur Sigurbjörnsson, Roelof van Zwol