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CHI
2010
ACM
15 years 1 days ago
Designing with mobile digital storytelling in rural Africa
We reflect on activities to design a mobile application to enable rural people in South Africa's Eastern Cape to record and share their stories, which have implications for `...
Nicola J. Bidwell, Thomas Reitmaier, Gary Marsden,...
MM
2010
ACM
158views Multimedia» more  MM 2010»
14 years 9 months ago
Image segmentation with patch-pair density priors
In this paper, we investigate how an unlabeled image corpus can facilitate the segmentation of any given image. A simple yet efficient multi-task joint sparse representation model...
Xiaobai Liu, Jiashi Feng, Shuicheng Yan, Hai Jin
MOBICOM
2012
ACM
13 years 2 months ago
Distinguishing users with capacitive touch communication
As we are surrounded by an ever-larger variety of post-PC devices, the traditional methods for identifying and authenticating users have become cumbersome and time-consuming. In t...
Tam Vu, Akash Baid, Simon Gao, Marco Gruteser, Ric...
KDD
2012
ACM
212views Data Mining» more  KDD 2012»
13 years 2 months ago
Fast bregman divergence NMF using taylor expansion and coordinate descent
Non-negative matrix factorization (NMF) provides a lower rank approximation of a matrix. Due to nonnegativity imposed on the factors, it gives a latent structure that is often mor...
Liangda Li, Guy Lebanon, Haesun Park
CVPR
2006
IEEE
16 years 1 months ago
Inferring Facial Action Units with Causal Relations
A system that could automatically analyze the facial actions in real time have applications in a number of different fields. However, developing such a system is always a challeng...
Yan Tong, Wenhui Liao, Qiang Ji