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Handling Missing and Unreliable Information in Speech Recognition

by Phil Green, Jon Barker, Martin Cooke, Ljubomir Josifovski - In Proc , 2001
"... In this work, techniques for classification with missing or unreliable data are applied to the problem of noise-robustness in Automatic Speech Recognition (ASR). The primary advantage of this viewpoint is that it makes minimal assumptions about any noise background. As motivation, we review ev ..."
Abstract - Cited by 6 (0 self) - Add to MetaCart
In this work, techniques for classification with missing or unreliable data are applied to the problem of noise-robustness in Automatic Speech Recognition (ASR). The primary advantage of this viewpoint is that it makes minimal assumptions about any noise background. As motivation, we review

Word Association Norms, Mutual Information, and Lexicography

by Kenneth Ward Church, Patrick Hanks , 1990
"... This paper will propose an objective measure based on the information theoretic notion of mutual information, for estimating word association norms from computer readable corpora. (The standard method of obtaining word association norms, testing a few thousand subjects on a few hundred words, is b ..."
Abstract - Cited by 1144 (11 self) - Add to MetaCart
This paper will propose an objective measure based on the information theoretic notion of mutual information, for estimating word association norms from computer readable corpora. (The standard method of obtaining word association norms, testing a few thousand subjects on a few hundred words

Information Seeking with Multiple Sources of Conflicting and Unreliable Information'

by unknown authors
"... The effects of information conflict, the frequency with which the information is updated, and the reliability of the information sources upon information seeking and decision behavior were studied. Sixteen U. S. Army enlisted men performed a computer-controlled task in which they had to request upda ..."
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The effects of information conflict, the frequency with which the information is updated, and the reliability of the information sources upon information seeking and decision behavior were studied. Sixteen U. S. Army enlisted men performed a computer-controlled task in which they had to request

Consensus Seeking in Multi-agent Systems under Dynamically Changing Interaction Topologies

by Wei Ren, Randal W. Beard , 2003
"... This note considers the problem of information consensus among multiple agents in the presence of limited and unreliable information exchange with dynamically changing interaction topologies. Both discrete and continuous update schemes are proposed for information consensus. The note shows that i ..."
Abstract - Cited by 449 (37 self) - Add to MetaCart
This note considers the problem of information consensus among multiple agents in the presence of limited and unreliable information exchange with dynamically changing interaction topologies. Both discrete and continuous update schemes are proposed for information consensus. The note shows

Segmentation of brain MR images through a hidden Markov random field model and the expectation-maximization algorithm

by Yongyue Zhang, Michael Brady, Stephen Smith - IEEE TRANSACTIONS ON MEDICAL. IMAGING , 2001
"... The finite mixture (FM) model is the most commonly used model for statistical segmentation of brain magnetic resonance (MR) images because of its simple mathematical form and the piecewise constant nature of ideal brain MR images. However, being a histogram-based model, the FM has an intrinsic limi ..."
Abstract - Cited by 639 (15 self) - Add to MetaCart
limitation—no spatial information is taken into account. This causes the FM model to work only on well-defined images with low levels of noise; unfortunately, this is often not the the case due to artifacts such as partial volume effect and bias field distortion. Under these conditions, FM model

P-Grid: A self-organizing access structure for P2P information systems

by Karl Aberer - In CoopIS , 2001
"... Peer-To-Peer systems are driving a major paradigm shift in the era of genuinely distributed computing. Gnutella is a good example of a Peer-To-Peer success story: a rather simple software enables Internet users to freely exchange files, such as MP3 music files. But it shows up also some of the limit ..."
Abstract - Cited by 304 (49 self) - Add to MetaCart
of the limitations of current P2P information systems with respect to their ability to manage data eÆciently. In this paper we introduce P-Grid, a scalable access structure that is specifically designed for Peer-To-Peer information systems. P-Grids are constructed and maintained by using randomized algorithms

Reliable Feature Matching Across Widely Separated Views

by Adam Baumberg , 2000
"... In this paper we present a robust method for automatically matching features in images corresponding to the same physical point on an object seen from two arbitrary viewpoints. Unlike conventional stereo matching approaches we assume no prior knowledge about the relative camera positions and orienta ..."
Abstract - Cited by 308 (0 self) - Add to MetaCart
and orientations. In fact in our application this is the information we wish to determine from the image feature matches. Features are detected in two or more images and characterised using affine texture invariants. The problem of window effects is explicitly addressed by our method - our feature characterisation

Kalman filtering with intermittent observations

by Bruno Sinopoli, Luca Schenato, Massimo Franceschetti, Kameshwar Poolla, Michael I. Jordan, Shankar S. Sastry - IEEE TRANSACTIONS ON AUTOMATIC CONTROL , 2004
"... Motivated by navigation and tracking applications within sensor networks, we consider the problem of performing Kalman filtering with intermittent observations. When data travel along unreliable communication channels in a large, wireless, multihop sensor network, the effect of communication delays ..."
Abstract - Cited by 295 (41 self) - Add to MetaCart
Motivated by navigation and tracking applications within sensor networks, we consider the problem of performing Kalman filtering with intermittent observations. When data travel along unreliable communication channels in a large, wireless, multihop sensor network, the effect of communication

Preserving and Using Context Information in Interprocess Communication

by Larry L. Peterson, Nick C. Buchholz, Richard D. Schlichting - ACM Transactions on Computer Systems , 1989
"... ion Psync is based on a conversation abstraction that provides a shared message space through which a collection of processes exchange messages. The general form of this message space is defined by a directed acyclic graph that preserves the partial order of the exchanged messages. For the purpose ..."
Abstract - Cited by 234 (24 self) - Add to MetaCart
of this section, we view a conversation as an abstract data type that is implemented in shared memory; Section 3 gives an algorithm for implementing a conversation in an unreliable network. A conversation behaves much like any connection-oriented IPC abstraction: A well-defined set of processes

Impact of Synaptic Unreliability on the Information Transmitted by Spiking Neurons

by Anthony Zador - J. Neurophysiol , 1998
"... this paper, we use simple biophysical models dent unreliable synapses provides the drive to an integrate-and-fire of spike transduction and stochastic synaptic release to ex- neuron. Within this model, the mutual information between the plore the implications of synaptic unreliability on informa- sy ..."
Abstract - Cited by 64 (1 self) - Add to MetaCart
this paper, we use simple biophysical models dent unreliable synapses provides the drive to an integrate-and-fire of spike transduction and stochastic synaptic release to ex- neuron. Within this model, the mutual information between the plore the implications of synaptic unreliability on informa
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