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WWW
2008
ACM
14 years 10 months ago
A graph-theoretic approach to webpage segmentation
We consider the problem of segmenting a webpage into visually and semantically cohesive pieces. Our approach is based on formulating an appropriate optimization problem on weighte...
Deepayan Chakrabarti, Ravi Kumar, Kunal Punera
ESORICS
2009
Springer
14 years 10 months ago
A Privacy Preservation Model for Facebook-Style Social Network Systems
Abstract. Recent years have seen unprecedented growth in the popularity of social network systems, with Facebook being an archetypical example. The access control paradigm behind t...
Philip W. L. Fong, Mohd M. Anwar, Zhen Zhao
KDD
2002
ACM
125views Data Mining» more  KDD 2002»
14 years 10 months ago
Pattern discovery in sequences under a Markov assumption
In this paper we investigate the general problem of discovering recurrent patterns that are embedded in categorical sequences. An important real-world problem of this nature is mo...
Darya Chudova, Padhraic Smyth
CHI
2007
ACM
14 years 10 months ago
Project massive: self-regulation and problematic use of online gaming
A longitudinal design was employed to collect three waves of survey data over a 14 month period from 2790 online gamers. Respondents were asked questions about their gaming activi...
A. Fleming Seay, Robert E. Kraut
CHI
2007
ACM
14 years 10 months ago
Usability testing: what have we overlooked?
For more than a decade, the number of usability test participants has been a major theme of debate among usability practitioners and researchers keen to improve usability test per...
Gitte Lindgaard, Jarinee Chattratichart