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ISBI
2004
IEEE
16 years 5 months ago
Dimensionality and Degrees of Freedom in fMRI Data Analysis - A Comparative Study
Two- and three-dimensional isotropic and anisotropic spatial filters for adaptive fMRI data analysis are compared in terms of activation detection sensitivity and specificity. Eva...
Joakim Rydell, Magnus Borga, Hans Knutsson, Peter ...
CSCW
1998
ACM
15 years 8 months ago
Using Filtering Agents to Improve Prediction Quality in the GroupLens Research Collaborative Filtering System
Collaborative filtering systems help address information overload by using the opinions of users in a community to make personal recommendations for documents to each user. Many c...
Badrul M. Sarwar, Joseph A. Konstan, Al Borchers, ...
AIRWEB
2009
Springer
15 years 11 months ago
A study of link farm distribution and evolution using a time series of web snapshots
In this paper, we study the overall link-based spam structure and its evolution which would be helpful for the development of robust analysis tools and research for Web spamming a...
Young-joo Chung, Masashi Toyoda, Masaru Kitsuregaw...
HT
2009
ACM
15 years 11 months ago
Hyperincident connected components of tagging networks
Data created by social bookmarking systems can be described as 3-partite 3-uniform hypergraphs connecting documents, users, and tags (tagging networks), such that the toolbox of c...
Nicolas Neubauer, Klaus Obermayer
AIRWEB
2005
Springer
15 years 10 months ago
Web Spam, Propaganda and Trust
Web spamming, the practice of introducing artificial text and links into web pages to affect the results of searches, has been recognized as a major problem for search engines. ...
Panagiotis Takis Metaxas, Joseph DeStefano