11 search results - page 2 / 3 » Detect and Track Latent Factors with Online Nonnegative Matr... |
ICASSP
2009
IEEE
13 years 2 months ago
2009
IEEE
Nonnegative matrix tri-factorization (NMTF) is a 3-factor decomposition of a nonnegative data matrix, X USV , where factor matrices, U, S, and V , are restricted to be nonnegativ...
CIKM
2008
Springer
13 years 6 months ago
2008
Springer
We present a framework for automatically summarizing social group activity over time. The problem is important in understanding large scale online social networks, which have dive...
ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
Many works on speech processing have dealt with auto-regressive (AR) models for spectral envelope and formant frequency estimation, mostly focusing on the estimation of the AR par...
WSDM
2012
ACM
12 years 12 days ago
2012
ACM
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...
EDM
2010
13 years 6 months ago
2010
In this paper we present an evaluation of new techniques for automatically detecting sentiment polarity (Positive or Negative) in the students responses to Unit of Study Evaluation...