Isolated effective coherence (iCoh): causal information flow excluding indirect paths [PDF]
A problem of great interest in real world systems, where multiple time series measurements are available, is the estimation of the intra-system causal relations.
Biscay, RJ +7 more
core +1 more source
Addressing indirect frequency coupling via partial generalized coherence
Distinguishing between direct and indirect frequency coupling is an important aspect of functional connectivity analyses because this distinction can determine if two brain regions are directly connected.
Joseph Young +2 more
doaj +1 more source
Coherence methods in mapping AVO anomalies and predicting P-wave and S-wave impedances [PDF]
Filters for migrated offset substacks are designed by partial coherence analysis to predict ‘normal’ amplitude variation with offset (AVO) in an anomaly free area.
Barnola, A.S., White, Roy E.
core +1 more source
Room-temperature exciton polaritons in a monolayer WS2 are shown to display strong motional narrowing of the linewidth and enhanced first-order coherence.
M. Wurdack +9 more
doaj +1 more source
Optical binding of cylinder photonic molecules in the near-field of partially coherent fluctuating Gaussian Schell model sources. A coherent mode representation [PDF]
We present a theory and computation method of radiation pressure from partially coherent light by establishing a coherent mode representation of the radiation forces.
Auñón, Juan Miguel +2 more
core +3 more sources
During continuous speech, lip movements provide visual temporal signals that facilitate speech processing. Here, using MEG we directly investigated how these visual signals interact with rhythmic brain activity in participants listening to and seeing the
Hyojin Park +3 more
doaj +1 more source
Exact Recovery Conditions for Sparse Representations with Partial Support Information [PDF]
We address the exact recovery of a k-sparse vector in the noiseless setting when some partial information on the support is available. This partial information takes the form of either a subset of the true support or an approximate subset including wrong
Gribonval, R. +3 more
core +5 more sources
Gait-based human recognition using partial wavelet coherence and phase features
In this paper, a multi-view human gait recognition method which utilizes Partial Wavelet Coherence (PWC) as a novel feature is proposed. The Euclidean distance representation of PWC of the 1D signals generated due to movements of hands, legs, shoulders ...
Sagar Arun More, Pramod Jagan Deore
doaj +1 more source
The generalized shrinkage estimator for the analysis of functional connectivity of brain signals
We develop a new statistical method for estimating functional connectivity between neurophysiological signals represented by a multivariate time series. We use partial coherence as the measure of functional connectivity.
Fiecas, Mark, Ombao, Hernando
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Revivals of Coherence in Chaotic Atom-Optics Billiards
We investigate the coherence properties of thermal atoms confined in optical dipole traps where the underlying classical dynamics is chaotic. A perturbative expression derived for the coherence of the echo scheme of [Andersen et. al., Phys. Rev. Lett. 90,
C. Cohen-Tannoudji +5 more
core +1 more source

