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CSDA
2011
14 years 8 months ago
Iterative stepwise regression imputation using standard and robust methods
Imputation of missing values is one of the major tasks for data pre-processing in many areas. Whenever imputation of data from official statistics comes into mind, several (additi...
Matthias Templ, Alexander Kowarik, Peter Filzmoser
CSDA
2011
14 years 8 months ago
Error rates for multivariate outlier detection
Multivariate outlier identification requires the choice of reliable cut-off points for the robust distances that measure the discrepancy from the fit provided by high-breakdown...
Andrea Cerioli, Alessio Farcomeni
CSCW
2011
ACM
14 years 8 months ago
Do you want to know?: recommending strangers in the enterprise
Recent studies on people recommendation have focused on suggesting people the user already knows. In this work, we use social media behavioral data to recommend people the user is...
Ido Guy, Sigalit Ur, Inbal Ronen, Adam Perer, Mich...
CSCW
2011
ACM
14 years 8 months ago
Temporal patterns of cohesiveness in virtual groups
Victoria Schwanda, Kyle Barron, Jennifer Lien, Gre...
CSCW
2011
ACM
14 years 8 months ago
Browse and discover: social file sharing in the enterprise
There is a growth in the popularity of social file sharing systems. This paper describes the design of Cattail, a social file sharing system for the enterprise. Through a ‘Recen...
N. Sadat Shami, Michael J. Muller, David R. Millen
CSCW
2011
ACM
14 years 8 months ago
Understanding technology choices and values through social class
This ethnographic study of 22 diverse families in the San Francisco Bay Area explores parents’ attitudes about their children’s use of technology. We found that parents from d...
Morgan G. Ames, Janet Go, Joseph Kaye, Mirjana Spa...
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CSCW
2011
ACM
14 years 8 months ago
Real-time groupware in the browser: testing the performance of web-based networking
Standard web browsers are becoming a common platform for delivering groupware applications, but until recently, the only way to support real-time collaboration was with browser pl...
Carl A. Gutwin, Michael Lippold, T. C. Nicholas Gr...
CPM
2011
Springer
402views Combinatorics» more  CPM 2011»
14 years 8 months ago
Tractability Results for the Consecutive-Ones Property with Multiplicity
A binary matrix has the Consecutive-Ones Property (C1P) if its columns can be ordered in such a way that all 1’s in each row are consecutive. We consider here a variant of the C1...
Cedric Chauve, Ján Manuch, Murray Patterson...