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Convergence of Nonparametric Long-Memory Phase I Designs

Authors: Assaf P. Oron, David Azriel, Peter D. Hoff

arXiv

We examine nonparametric dose-finding designs that use toxicity estimates based on all available data at each dose allocation decision. We prove that one such design family, called here "interval desi...

mental health psychology open access

The Consistency of Modeled and Observed Temperature Trends in the Tropical Troposphere: A Comment on Santer et al (2008)

Authors: Stephen McIntyre, Ross McKitrick

arXiv

Santer et al (2008) (S08) compared climate models and observations in the tropical troposphere and reported that "there is no longer a serious discrepancy between modeled and observed trends in trop...

mental health psychology open access

A covariate adjustment for zero-truncated approaches to estimating the size of hidden and elusive populations

Authors: Dankmar Böhning, Peter G. M. van der Heijden

arXiv

In this paper we consider the estimation of population size from one-source capture--recapture data, that is, a list in which individuals can potentially be found repeatedly and where the question i...

mental health psychology open access

Latent Markov model for longitudinal binary data: An application to the performance evaluation of nursing homes

Authors: Francesco Bartolucci, Monia Lupparelli, Giorgio E. Montanari

arXiv

Performance evaluation of nursing homes is usually accomplished by the repeated administration of questionnaires aimed at measuring the health status of the patients during their period of residence...

mental health psychology open access

Bayesian variable selection using cost-adjusted BIC, with application to cost-effective measurement of quality of health care

Authors: D. Fouskakis, I. Ntzoufras, D. Draper

arXiv

In the field of quality of health care measurement, one approach to assessing patient sickness at admission involves a logistic regression of mortality within 30 days of admission on a fairly large...

mental health psychology open access

Regularized adaptive long autoregressive spectral analysis

Authors: J. -F. Giovannelli, J. Idier, G. Desodt, D. Muller

arXiv

This paper is devoted to adaptive long autoregressive spectral analysis when (i) very few data are available, (ii) information does exist beforehand concerning the spectral smoothness and time conti...

mental health psychology open access

Bayesian interpretation of periodograms

Authors: J. -F. Giovannelli, J. Idier

arXiv

The usual nonparametric approach to spectral analysis is revisited within the regularization framework. Both usual and windowed periodograms are obtained as the squared modulus of the minimizer of r...

mental health psychology open access

Evidence for frequency-dependent extracellular impedance from the transfer function between extracellular and intracellular potentials

Authors: Claude Bedard, Serafim Rodrigues, Noah Roy, Diego Contreras, Alain Destexhe

arXiv

We examine the properties of the transfer function F_T = V_m / V_{LFP} between the intracellular membrane potential (V_m) and the local field potential (V_{LFP}) in cerebral cortex. We first show theo...

mental health psychology open access

Network exploration via the adaptive LASSO and SCAD penalties

Authors: Jianqing Fan, Yang Feng, Yichao Wu

arXiv

Graphical models are frequently used to explore networks, such as genetic networks, among a set of variables. This is usually carried out via exploring the sparsity of the precision matrix of the va...

mental health psychology open access

Simple Error Scattering Model for improved Information Reconciliation

Authors: Stefan Rass

arXiv

Implementations of quantum key distribution as available nowadays suffer from inefficiencies due to post processing of the raw key that severely cuts down the final secure key rate. We present a sim...

mental health psychology open access

An Augmented Lagrangian Approach for Sparse Principal Component Analysis

Authors: Zhaosong Lu, Yong Zhang

arXiv

Principal component analysis (PCA) is a widely used technique for data analysis and dimension reduction with numerous applications in science and engineering. However, the standard PCA suffers from...

mental health psychology open access

Multiscale Network Reduction Methodologies: Bistochastic and Disparity Filtering of Human Migration Flows between 3,000+ U. S. Counties

Authors: Paul B. Slater

arXiv

To control for multiscale effects in networks, one can transform the matrix of (in general) weighted, directed internodal flows to bistochastic (doubly-stochastic) form, using the iterative proportion...

mental health psychology open access

An organic nanoparticle transistor behaving as a biological synapse

Authors: F. Alibart, S. Pleutin, D. Guerin, C. Novembre, S. Lenfant, K. Lmimouni, C. Gamrat, D. Vuillaume

arXiv

Molecule-based devices are envisioned to complement silicon devices by providing new functions or already existing functions at a simpler process level and at a lower cost by virtue of their self-or...

mental health psychology open access

Signal processing in local neuronal circuits based on activity-dependent noise and competition

Authors: Vladislav Volman, Herbert Levine

arXiv

We study the characteristics of weak signal detection by a recurrent neuronal network with plastic synaptic coupling. It is shown that in the presence of an asynchronous component in synaptic transm...

mental health psychology open access

Codimension Two Bifurcations and Rythms in Neural Mass Models

Authors: Jonathan Touboul, Olivier Faugeras

arXiv

Temporal lobe epilepsy is one of the most common chronic neurological disorder characterized by the occurrence of spontaneous recurrent seizures which can be observed at the level of populations thr...

mental health psychology open access