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SACMAT
2011
ACM
14 years 8 months ago
Modeling data flow in socio-information networks: a risk estimation approach
Information leakage via the networks formed by subjects (e.g., Facebook, Twitter) and objects (e.g., blogosphere) − some of whom may be controlled by malicious insiders − ofte...
Ting Wang, Mudhakar Srivatsa, Dakshi Agrawal, Ling...
WSDM
2012
ACM
301views Data Mining» more  WSDM 2012»
14 years 1 months ago
Learning evolving and emerging topics in social media: a dynamic nmf approach with temporal regularization
As massive repositories of real-time human commentary, social media platforms have arguably evolved far beyond passive facilitation of online social interactions. Rapid analysis o...
Ankan Saha, Vikas Sindhwani
NAACL
2007
15 years 7 months ago
Combination of Statistical Word Alignments Based on Multiple Preprocessing Schemes
We present an approach to using multiple preprocessing schemes to improve statistical word alignments. We show a relative reduction of alignment error rate of about 38%.
Jakob Elming, Nizar Habash
ICC
2007
IEEE
15 years 11 months ago
UWB Geo-Regioning Using Multivariate Channel Statistics
Abstract— Ultra-Wideband (UWB) Geo-Regioning is an approach to localize UWB transmitters by means of their channel impulse responses. A received channel impulse response is assig...
Christoph Steiner, Armin Wittneben
SSWMC
2004
15 years 6 months ago
Statistical amplitude scale estimation for quantization-based watermarking
Quantization-based watermarking schemes are vulnerable to amplitude scaling. Therefore the scaling factor has to be accounted for either at the encoder, or at the decoder, prior t...
Ivo D. Shterev, Reginald L. Lagendijk, Richard Heu...