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UAI
2008
15 years 4 months ago
Modelling local and global phenomena with sparse Gaussian processes
Much recent work has concerned sparse approximations to speed up the Gaussian process regression from the unfavorable O(n3 ) scaling in computational time to O(nm2 ). Thus far, wo...
Jarno Vanhatalo, Aki Vehtari
NAACL
2003
15 years 4 months ago
Implicit Trajectory Modeling through Gaussian Transition Models for Speech Recognition
It is well known that frame independence assumption is a fundamental limitation of current HMM based speech recognition systems. By treating each speech frame independently, HMMs ...
Hua Yu, Tanja Schultz
TSP
2008
179views more  TSP 2008»
15 years 3 months ago
Estimation in Gaussian Graphical Models Using Tractable Subgraphs: A Walk-Sum Analysis
Graphical models provide a powerful formalism for statistical signal processing. Due to their sophisticated modeling capabilities, they have found applications in a variety of fie...
V. Chandrasekaran, Jason K. Johnson, Alan S. Wills...
TCOM
2010
90views more  TCOM 2010»
15 years 1 months ago
Performance Analysis for BICM Transmission over Gaussian Mixture Noise Fading Channels
—Bit-interleaved coded modulation (BICM) has been adopted in many systems and standards for spectrally efficient coded transmission. The analytical evaluation of BICM performanc...
Alireza Kenarsari-Anhari, Lutz H.-J. Lampe
TIT
2011
148views more  TIT 2011»
14 years 10 months ago
On Two-User Gaussian Multiple Access Channels With Finite Input Constellations
—Constellation Constrained (CC) capacity regions of two-user Single-Input Single-Output (SISO) Gaussian Multiple Access Channels (GMAC) are computed for several Non-Orthogonal Mu...
Jagadeesh Harshan, Bikash Sundar Rajan