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ICML
2004
IEEE
16 years 5 months ago
A multiplicative up-propagation algorithm
We present a generalization of the nonnegative matrix factorization (NMF), where a multilayer generative network with nonnegative weights is used to approximate the observed nonne...
Jong-Hoon Ahn, Seungjin Choi, Jong-Hoon Oh

Book
412views
17 years 3 months ago
Algorithms for Clustering Data
"Cluster analysis is an important technique in the rapidly growing field known as exploratory data analysis and is being applied in a variety of engineering and scientific dis...
A. K. Jain, R. C. Dubes
CSCW
1994
ACM
15 years 8 months ago
From Implementation to Design: Tailoring and the Emergence of Systematization in CSCW
In this paper, we look at how people working in a governmental labor inspection agency tailor their shared PC environment. Starting with standard off-the-shelf software, the tailo...
Randall H. Trigg, Susanne Bødker
BCSHCI
2008
15 years 5 months ago
Designing for people who do not read easily
Many people do not read easily for all sorts of reasons: social and cultural, because of impairments, or because of their context. Even in the area of impairments, design for peop...
Caroline Jarrett, Katie Grant, B. L. William Wong,...
WSPI
2008
15 years 5 months ago
Practices, Systems, and Context Working as Core Concepts in Modeling Socio-Technical Systems
This work draws on the cultural historical activity-theory and the theory of social systems to model socio-technical systems. The concepts of practice, system, and context work as ...
Heidrun Allert, Christoph Richter