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Showing 15 of 20167 papers

Scaling of brain metabolism and blood flow in relation to capillary and neural scaling

Authors: Jan Karbowski

arXiv

Brain is one of the most energy demanding organs in mammals, and its total metabolic rate scales with brain volume raised to a power of around 5/6. This value is significantly higher than the more com...

mental health psychology open access

Inference with interference between units in an fMRI experiment of motor inhibition

Authors: Xi Luo, Dylan S. Small, Chiang-shan R. Li, Paul R. Rosenbaum

arXiv

An experimental unit is an opportunity to randomly apply or withhold a treatment. There is interference between units if the application of the treatment to one unit may also affect other units. In co...

mental health psychology open access

Strange Nonchaotic Bursting in A Quasiperiodially-Forced Hindmarsh-Rose Neuron

Authors: Woochang Lim, Sang-Yoon Kim

arXiv

We study the transition from a silent state to a bursting state by varying the dc stimulus in the Hindmarsh-Rose neuron under quasiperiodic stimulation. For this quasiperiodically forced case, a new t...

mental health psychology open access

Multivariate integer-valued autoregressive models applied to earthquake counts

Authors: Mathieu Boudreault, Arthur Charpentier

arXiv

In various situations in the insurance industry, in finance, in epidemiology, etc., one needs to represent the joint evolution of the number of occurrences of an event. In this paper, we present a mul...

mental health psychology open access

Athlete rating in multi-competitor games with scored outcomes via monotone transformations

Authors: Jonathan Che, Mark Glickman

arXiv

Sports organizations often want to estimate athlete strengths. For games with scored outcomes, a common approach is to assume observed game scores follow a normal distribution conditional on athletes'...

mental health psychology open access

PROLIFIC: Projection-based Test for Lack of Importance of Smooth Functional Effect in Crossover Design

Authors: Salil Koner, Ana-Maria Staicu, Arnab Maity

arXiv

Wearable devices for continuous monitoring of electronic health increased attention due to their richness in information. Often, inference is drawn from features that quantify some summary of the data...

mental health psychology open access

Mesoscopic modeling of hidden spiking neurons

Authors: Shuqi Wang, Valentin Schmutz, Guillaume Bellec, Wulfram Gerstner

arXiv

Can we use spiking neural networks (SNN) as generative models of multi-neuronal recordings, while taking into account that most neurons are unobserved? Modeling the unobserved neurons with large pools...

mental health psychology open access

Flipping the Script on Criminal Justice Risk Assessment: An actuarial model for assessing the risk the federal sentencing system poses to defendants

Authors: Mikaela Meyer, Aaron Horowitz, Erica Marshall, Kristian Lum

arXiv

In the criminal justice system, algorithmic risk assessment instruments are used to predict the risk a defendant poses to society; examples include the risk of recidivating or the risk of failing to a...

mental health psychology open access

Low-rank Latent Matrix-factor Prediction Modeling for Generalized High-dimensional Matrix-variate Regression

Authors: Yuzhe Zhang, Xu Zhang, Hong Zhang, Aiyi Liu, Catherine Liu

arXiv

Motivated by diagnosing the COVID-19 disease using 2D image biomarkers from computed tomography (CT) scans, we propose a novel latent matrix-factor regression model to predict responses that may come...

mental health psychology open access

Automatic detection of long-duration transients in Fermi-GBM data

Authors: F. Kunzweiler, B. Biltzinger, J. Greiner, J. M. Burgess

arXiv

In the era of time-domain, multi-messenger astronomy, the detection of transient events on the high-energy electromagnetic sky has become more important than ever. Previous attempts to systematically...

mental health psychology open access

Perceptive, non-linear Speech Processing and Spiking Neural Networks

Authors: Jean Rouat, Ramin Pichevar, Stéphane Loiselle

arXiv

Source separation and speech recognition are very difficult in the context of noisy and corrupted speech. Most conventional techniques need huge databases to estimate speech (or noise) density probabi...

mental health psychology open access

Hawkes Process Modeling of Block Arrivals in Bitcoin Blockchain

Authors: Rui Luo, Vikram Krishnamurthy, Erik Blasch

arXiv

The paper constructs a multi-variate Hawkes process model of Bitcoin block arrivals and price jumps. Hawkes processes are selfexciting point processes that can capture the self- and cross-excitation e...

mental health psychology open access

Cointegration of SARS-CoV-2 Transmission with Weather Conditions and Mobility during the First Year of the COVID-19 Pandemic in the United States

Authors: Hong Qin, Syed Tareq, William Torres, Megan Doman, Cleo Falvey, Jamaree Moore, Meng Hsiu Tsai, Yingfeng Wang, Azad Hossain, Mengjun Xie, Li Yang

arXiv

Correlation between weather and the transmission of SARS-CoV-2 may suggest its seasonality. Cointegration analysis can avoid spurious correlation among time series data. We examined the cointegration...

mental health psychology open access

Evaluation of Performance for Human In-Vivo Conductivity Estimation from EEG and sEEG Recorded in Simultaneous with Intracerebral Electrical Stimulation

Authors: Hamza Altakroury, Laurent Koessler, Radu Ranta, Janis Hofmanis, Sophie Colnat Coulbois, Louis Maillard, Valérie Louis Dorr

arXiv

Assigning accurate conductivity values in human head models is an essential factor for performing precise electroencephalographic (EEG) source localization and targeting of transcranial electrical sti...

mental health psychology open access

Reconstructing Missing EHRs Using Time-Aware Within- and Cross-Visit Information for Septic Shock Early Prediction

Authors: Ge Gao, Farzaneh Khoshnevisan, Min Chi

arXiv

Real-world Electronic Health Records (EHRs) are often plagued by a high rate of missing data. In our EHRs, for example, the missing rates can be as high as 90% for some features, with an average missi...

mental health psychology open access