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CORR
2011
Springer
206views Education» more  CORR 2011»
12 years 11 months ago
A Study of Language Usage Evolution in Open Source Software
: In December of 2010, the new game CityVille achieved 6 million daily active users in just 8 days. Clearly the success of CityVille owes something to the fun gameplay experience i...
Siim Karus, Harald Gall
STOC
2009
ACM
167views Algorithms» more  STOC 2009»
14 years 8 months ago
Universally utility-maximizing privacy mechanisms
A mechanism for releasing information about a statistical database with sensitive data must resolve a trade-off between utility and privacy. Publishing fully accurate information ...
Arpita Ghosh, Tim Roughgarden, Mukund Sundararajan
WWW
2008
ACM
14 years 8 months ago
Social and semantics analysis via non-negative matrix factorization
Social media such as Web forum often have dense interactions between user and content where network models are often appropriate for analysis. Joint non-negative matrix factorizat...
Zhi-Li Wu, Chi-Wa Cheng, Chun-hung Li
IADIS
2008
13 years 8 months ago
Usability Evaluation Of The Moodle System From The Teachers' Perspective
This article presents an empirical study performed to evaluate the Moodle usability, from the point of view of teachers who are using this system to support their classes. The usa...
Tereza G. Kirner, Carlos de A. Custódio, Cl...
INFOSCALE
2007
ACM
13 years 9 months ago
Query-driven indexing for scalable peer-to-peer text retrieval
We present a query-driven algorithm for the distributed indexing of large document collections within structured P2P networks. To cope with bandwidth consumption that has been ide...
Gleb Skobeltsyn, Toan Luu, Ivana Podnar Zarko, Mar...