Articles with "mutual information" as a keyword



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

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

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

Space-time generalization of mutual information

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Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep05(2024)338

Abstract: The mutual information characterizes correlations between spatially separated regions of a system. Yet, in experiments we often measure dynamical correlations, which involve probing operators that are also separated in time. Here, we introduce a space-time… read more here.

Keywords: information; time; mutual information; time generalization ... See more keywords

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

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

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

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

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

Quantification of the Available Information of Hydrological Datasets: Stabilizing the Estimator of Multivariate Mutual Information

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Published in 2025 at "Water Resources Management"

DOI: 10.1007/s11269-025-04145-2

Abstract: The Available Information contained in a hydrological dataset represents the meaningful information per timestep that enters a rainfall-runoff model. To estimate this quantity, Independent Component Analysis (ICA) must be performed to transform the original observations… read more here.

Keywords: quantification available; information; mutual information; information hydrological ... See more keywords