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KDD
2006
ACM
172views Data Mining» more  KDD 2006»
16 years 7 months ago
Attack detection in time series for recommender systems
Recent research has identified significant vulnerabilities in recommender systems. Shilling attacks, in which attackers introduce biased ratings in order to influence future recom...
Sheng Zhang, Amit Chakrabarti, James Ford, Fillia ...
KDD
2002
ACM
110views Data Mining» more  KDD 2002»
16 years 7 months ago
A model for discovering customer value for E-content
There exists a huge demand for multimedia goods and services in the Internet. Currently available bandwidth speeds can support sale of downloadable content like CDs, e-books, etc....
Srinivasan Jagannathan, Jayanth Nayak, Kevin C. Al...
CHI
2007
ACM
16 years 7 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
VLDB
2004
ACM
119views Database» more  VLDB 2004»
16 years 6 months ago
Evaluating holistic aggregators efficiently for very large datasets
Indatawarehousingapplications,numerousOLAP queries involve the processing of holistic aggregators such as computing the "top n," median, quantiles, etc. In this paper, we...
Lixin Fu, Sanguthevar Rajasekaran
VLDB
2004
ACM
144views Database» more  VLDB 2004»
16 years 6 months ago
Preserving mapping consistency under schema changes
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
Yannis Velegrakis, Renée J. Miller, Lucian Popa