نتایج جستجو برای: mutual information theory mi

تعداد نتایج: 1876105  

2006
Scooter Willis

The accurate prediction of co-evolving pairs in protein sequences plays an important role in tertiary protein structure prediction and protein engineering. Using information theory to detect coevolving pairs is impacted by the phylogenetic effect on entropy measurements. Mutual Information (MI) is used to detect co-evolving pairs in a protein family by re-sampling based on mutation events in th...

Journal: :CoRR 2007
W. Jacquet P. de Groen

Subtraction of aligned images is a means to assess changes in a wide variety of clinical applications. In this paper we explore the information theoretical origin of Mutual Information (MI), which is based on Shannon's entropy. However, the interpretation of standard MI registration as a communication channel suggests that MI is too restrictive a criterion. In this paper the concept of Mutual I...

Journal: :Pattern Recognition 2016
Xuan Vinh Nguyen Shuo Zhou Jeffrey Chan James Bailey

Mutual information (MI) based approaches are a popular paradigm for feature selection. Most previous methods have made use of low-dimensional MI quantities that are only effective at detecting low-order dependencies between variables. Several works have considered the use of higher dimensional mutual information, but the theoretical underpinning of these approaches is not yet comprehensive. To ...

Journal: :international journal of advanced biological and biomedical research 0
nazlar ghassemzadeh ms student, department of biomedical engineering, tabriz branch , islamic azad university tabriz , iran siamak haghipour assistant professor, department of biomedical engineering, tabriz branch, islamic azad university tabriz, iran

the brain – computer interface (bci) provides a communicational channel between human and machine. most of these systems are based on brain activities. brain computer-interfacing is a methodology that provides a way for communication with the outside environment using the brain thoughts. the success of this methodology depends on the selection of methods to process the brain signals in each pha...

1999
Howard Hua Yang Hynek Hermansky

In this paper, we use mutual information to characterize the distributions of phonetic and speaker/channel information in a timefrequency space. The mutual information (MI) between the phonetic label and one feature, and the joint mutual information (JMI) between the phonetic label and two or three features are estimated . The Miller's bias formulas for entropy and mutual information estimates ...

2000
Howard Hua Yang

In this paper, we use mutual information to characterize the distributions of phonetic and speaker/channel information in a time-frequency space. The mutual information (MI) between the pho-netic label and one feature, and the joint mutual information (JMI) between the phonetic label and two or three features are estimated. The Miller's bias formulas for entropy and mutual information estimates...

The brain – computer interface (BCI) provides a communicational channel between human and machine. Most of these systems are based on brain activities. Brain Computer-Interfacing is a methodology that provides a way for communication with the outside environment using the brain thoughts. The success of this methodology depends on the selection of methods to process the brain signals in each pha...

Journal: :International Journal of Biomedical Imaging 2007
Jiangang Liu Jie Tian

Traditional mutual information (MI) function aligns two multimodality images with intensity information, lacking spatial information, so that it usually presents many local maxima that can lead to inaccurate registration. Our paper proposes an algorithm of adaptive combination of intensity and gradient field mutual information (ACMI). Gradient code maps (GCM) are constructed by coding gradient ...

The brain – computer interface (BCI) provides a communicational channel between human and machine. Most of these systems are based on brain activities. Brain Computer-Interfacing is a methodology that provides a way for communication with the outside environment using the brain thoughts. The success of this methodology depends on the selection of methods to process the brain signals in each pha...

Journal: :Physical review letters 2001
K Kang H Sompolinsky

We studied the mutual information between a stimulus and a system consisting of stochastic, statistically independent elements that respond to a stimulus. Using statistical mechanical methods the properties of the mutual information (MI) in the limit of a large system size N are calculated. For continuous valued stimuli, the MI increases logarithmically with N and is related to the log of the F...

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