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CHI
2005
ACM
16 years 6 months ago
Patterns of media use in an activity-centric collaborative environment
This paper describes a new collaboration technology that is based on the support of lightweight, informally structured, opportunistic activities featuring heterogeneous threads of...
David R. Millen, Michael J. Muller, Werner Geyer, ...
BCI
2009
IEEE
16 years 1 months ago
On the Performance of SVD-Based Algorithms for Collaborative Filtering
—In this paper, we describe and compare three Collaborative Filtering (CF) algorithms aiming at the low-rank approximation of the user-item ratings matrix. The algorithm implemen...
Manolis G. Vozalis, Angelos I. Markos, Konstantino...
DAWAK
2009
Springer
16 years 1 months ago
Dynamic Clustering-Based Estimation of Missing Values in Mixed Type Data
The appropriate choice of a method for imputation of missing data becomes especially important when the fraction of missing values is large and the data are of mixed type. The prop...
Vadim V. Ayuyev, Joseph Jupin, Philip W. Harris, Z...
CIKM
2009
Springer
16 years 1 months ago
Combining labeled and unlabeled data with word-class distribution learning
We describe a novel simple and highly scalable semi-supervised method called Word-Class Distribution Learning (WCDL), and apply it the task of information extraction (IE) by utili...
Yanjun Qi, Ronan Collobert, Pavel Kuksa, Koray Kav...
CHIMIT
2009
ACM
16 years 1 months ago
Scripting practices in complex systems management
System administrators are end-users too. And as end-users, they develop tools, create web pages, write command-line scripts, use spreadsheets, and repurpose existing tools. In sho...
Eser Kandogan, Paul P. Maglio, Eben M. Haber, John...