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LAWEB
2007
IEEE
14 years 2 months ago
Geographical Characterization of YouTube: a Latin American View
Online social media applications have exploded in popularity in the Web. In most of these applications, users interact with other users and create content that becomes available o...
Fernando Duarte, Fabrício Benevenuto, Virgi...
WPES
2006
ACM
14 years 2 months ago
A study on the value of location privacy
This paper introduces results of a study into the value of location privacy for individuals using mobile devices. We questioned a sample of over 1200 people from five EU countrie...
Daniel Cvrcek, Marek Kumpost, Vashek Matyas, Georg...
CAISE
2005
Springer
14 years 1 months ago
Estimating Recall and Precision for Vague Queries in Databases
In vague queries, a user enters a value that represents some real world object and expects as the result the set of database values that represent this real world object even with ...
Raquel Kolitski Stasiu, Carlos A. Heuser, Roberto ...
MMSEC
2004
ACM
109views Multimedia» more  MMSEC 2004»
14 years 1 months ago
Statistical characterisation of MP3 encoders for steganalysis
This paper outlines a strategy to discriminate different ISO/ MPEG 1 Audio Layer-3 (MP3) encoding programs by statistical particularities of the compressed audio streams. We use ...
Rainer Böhme, Andreas Westfeld
IDA
2009
Springer
14 years 2 months ago
Bayesian Non-negative Matrix Factorization
Abstract. We present a Bayesian treatment of non-negative matrix factorization (NMF), based on a normal likelihood and exponential priors, and derive an efficient Gibbs sampler to ...
Mikkel N. Schmidt, Ole Winther, Lars Kai Hansen