Results 241 to 250 of about 315,169 (276)

Spurious causalities with transfer entropy

Physical Review E, 2013
Transfer entropy (TE) seems currently to be the most widely used tool to characterize causal influences in ensembles of complex systems from observed time series. In particular, in an elemental case of two systems, nonzero TEs in both directions are usually interpreted as a sign of a bidirectional coupling.
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Polarization entropy transfer and relative polarization entropy

Optics Communications, 1996
Abstract The concept of polarization entropy is extended to include its transfer by an optical system (or scattering medium) characterized by a Jones matrix (or equivalently, a Mueller-Jones matrix) and also by a general Mueller matrix. It is shown that physical realizability for a deterministic, passive medium governed by a Jones matrix implies ...
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Transfer Entropy in Neuroscience

2014
Information transfer is a key component of information processing, next to information storage and modification. Information transfer can be measured by a variety of directed informationmeasures of which transfer entropy is themost popular, andmost principled one. This chapter presents the basic concepts behind transfer entropy in an intuitive fashion,
Michael Wibral, Raul Vicente, Michael Lindner   +2 more
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Partial Symbolic Transfer Entropy [PDF]

, 2013
In this paper, we introduce the partial symbolic transfer entropy (PSTE), an extension of the symbolic transfer entropy that accounts only for the direct causal effects among the components of a multivariate system. It is an information theoretic measure, and as such does not suffer from model mis-specification bias. The PSTE is defined on the ranks of
Papana, A., Kyrtsou, C., Kugiumtzis, D., Diks, C.   +3 more
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Entropy barriers to proton transfer

Journal of the American Chemical Society, 1991
Proton transfer between sterically hindered pyridines and amines proceeds through locked-rotor, low-entropy intermediates. The reactions exhibit slow kinetics (efficiencies of 0.1-0.0001) and large negative temperature coefficients (up to k=CT − 8 .7 ).
Meotner, M, Smith, SC
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Transfer Entropy Quantifies Information Leakage

2019 SoutheastCon, 2019
The cybersecurity world faces multiple hardware level, information leakage threats. System complexity has led to new attack vectors. Cache bank malicious operations, Rowhammer, Spectre, Meltdown, and Foreshadow attacks are all hardware level information leakage attacks. These attacks take advantage of correlated hardware level operations. These attacks
Patrick Jungwirth, Daniel W. Hahs
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Symbolic transfer entropy: inferring directionality in biosignals

Biomedizinische Technik/Biomedical Engineering, 2009
Inferring directional interactions from biosignals is of crucial importance to improve understanding of dynamical interdependences underlying various physiological and pathophysiological conditions. We here present symbolic transfer entropy as a robust measure to infer the direction of interactions between multidimensional dynamical systems.
Matthäus, Staniek, Klaus, Lehnertz
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Miscellaneous Applications of Transfer Entropy

2016
The previous chapters have outlined the use of transfer entropy in some of its major application domains: providing insights into canonical complex systems and financial markets.
Terry Bossomaier, Lionel Barnett, Michael Harré, Joseph T. Lizier   +3 more
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Multiscale transfer entropy: Measuring information transfer on multiple time scales

Communications in Nonlinear Science and Numerical Simulation, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaojun Zhao, Yupeng Sun, Xuemei Li, Pengjian Shang   +3 more
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Entropy-driven proton-transfer reactions

The Journal of Physical Chemistry, 1991
The relation between kinetics and thermochemistry in fast reactions is examined, including reactions with substantial entropy changes. Rate constants for such reactions, in the range of (0.02-3.0) {times} 10{sup {minus}9} cm{sup 2}s{sup {minus}1}, were measured by pulsed high-pressure mass spectrometry.
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