Articles with "mutual information" as a keyword



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Nonrigid registration of medical image based on adaptive local structure tensor and normalized mutual information

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Published in 2019 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.12612

Abstract: Abstract Nonrigid registration of medical images is especially critical in clinical treatment. Mutual information is a popular similarity measure for medical image registration; however, only the intensity statistical characteristics of the global consistency of image… read more here.

Keywords: information; mutual information; registration; medical image ... See more keywords

Witnessing Quantum Speedup through Mutual Information

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Published in 2019 at "Annalen der Physik"

DOI: 10.1002/andp.201900225

Abstract: Achieving dynamical speedup of evolution in an open quantum system plays a key role in many technological applications. However, how to detect quantum speedup is unclear. In this work, a method to witness quantum speedup… read more here.

Keywords: quantum speedup; information; quantum; evolution ... See more keywords
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Normalized mutual information of fNIRS signals as a measure for accessing typical and atypical brain activity.

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Published in 2023 at "Journal of biophotonics"

DOI: 10.1002/jbio.202200369

Abstract: Normalized mutual information (NMI) can be used to detect statistical correlations between time series. We showed possibility of using NMI to quantify synchronicity of information transmission in different brain regions, thus to characterize functional connections,… read more here.

Keywords: information; mutual information; normalized mutual; brain activity ... See more keywords
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An inverse mass expansion for the mutual information in free scalar QFT at finite temperature

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Published in 2020 at "Journal of High Energy Physics"

DOI: 10.1007/jhep02(2020)091

Abstract: We study the entanglement entropy and the mutual information in coupled harmonic systems at finite temperature. Interestingly, we find that the mutual information does not vanish at infinite temperature, but it rather reaches a specific… read more here.

Keywords: mutual information; mass; finite temperature; temperature ... See more keywords
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Bulk private curves require large conditional mutual information

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep09(2021)042

Abstract: Abstract We prove a theorem showing that the existence of “private” curves in the bulk of AdS implies two regions of the dual CFT share strong correlations. A private curve is a causal curve which… read more here.

Keywords: mutual information; private curves; bulk private; causal curve ... See more keywords
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Mutual information superadditivity and unitarity bounds

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep09(2021)046

Abstract: Abstract We derive the property of strong superadditivity of mutual information arising from the Markov property of the vacuum state in a conformal field theory and strong subadditivity of entanglement entropy. We show this inequality… read more here.

Keywords: free fields; mutual information; unitarity bounds; information superadditivity ... See more keywords
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Quantum Approximate Markov Chains are Thermal

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Published in 2019 at "Communications in Mathematical Physics"

DOI: 10.1007/s00220-019-03485-6

Abstract: We prove that any one-dimensional (1D) quantum state with small quantum conditional mutual information in all certain tripartite splits of the system, which we call a quantum approximate Markov chain, can be well-approximated by a… read more here.

Keywords: quantum; quantum approximate; mutual information; conditional mutual ... See more keywords
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Mutual information of massive MIMO systems on block Rayleigh-faded channels

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Published in 2018 at "Cluster Computing"

DOI: 10.1007/s10586-018-2509-0

Abstract: This paper presents mutual information achieved by a Massive multi-input multi-output (Ma-MIMO) systems on a block Rayleigh-fading Channels. Mutual information represents the highest achievable spectral efficiency (SE) in Ma-MIMO systems. Fast fading causes the loss… read more here.

Keywords: mutual information; mimo systems; block rayleigh; systems block ... See more keywords
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Mutual-information matrix analysis for nonlinear interactions of multivariate time series

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Published in 2017 at "Nonlinear Dynamics"

DOI: 10.1007/s11071-016-3254-7

Abstract: Random matrix theory (RMT) is a sophisticated technique to analyze the cross-correlations of multivariate time series, while it suffers from the limitation on characterizing the linear relationships. In this paper, we propose a new mutual-information… read more here.

Keywords: information matrix; mutual information; information; time series ... See more keywords
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Time evolution of neighbor-pair mutual information in collectively moving active granular particles

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Published in 2019 at "Chinese Journal of Physics"

DOI: 10.1016/j.cjph.2019.06.003

Abstract: Abstract In recent decades, significant progress has been made in the field of active-matter research. Studies on biological active systems, in particular, have begun to adapt information-theoretic approaches in studying collective behavior in various systems.… read more here.

Keywords: mutual information; system; active granular; speed polarization ... See more keywords
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Modeling of unsupervised knowledge graph of events based on mutual information among neighbor domains and sparse representation

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Published in 2021 at "Defence Technology"

DOI: 10.1016/j.dt.2021.07.004

Abstract: Abstract Text event mining, as an indispensable method of text mining processing, has attracted the extensive attention of researchers. A modeling method for knowledge graph of events based on mutual information among neighbor domains and… read more here.

Keywords: mutual information; knowledge graph; feature; sparse representation ... See more keywords