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Showing 15 of 20167 papers

Using Undersampling with Ensemble Learning to Identify Factors Contributing to Preterm Birth

Authors: Shi Dong, Zlatan Feric, Guangyu Li, Chieh Wu, April Z. Gu, Jennifer Dy, John Meeker, Ingrid Y. Padilla, Jose Cordero, Carmen Velez Vega, Zaira Rosario, Akram Alshawabkeh, David Kaeli

arXiv

In this paper, we propose Ensemble Learning models to identify factors contributing to preterm birth. Our work leverages a rich dataset collected by a NIEHS P42 Center that is trying to identify the d...

mental health psychology open access

ABM: an automatic supervised feature engineering method for loss based models based on group and fused lasso

Authors: Weijian Luo, Yongxian Long

arXiv

A vital problem in solving classification or regression problem is to apply feature engineering and variable selection on data before fed into models.One of a most popular feature engineering method i...

mental health psychology open access

Analysis of professional basketball field goal attempts via a Bayesian matrix clustering approach

Authors: Fan Yin, Guanyu Hu, Weining Shen

arXiv

We propose a Bayesian nonparametric matrix clustering approach to analyze the latent heterogeneity structure in the shot selection data collected from professional basketball players in the National B...

mental health psychology open access

Generalizable Machine Learning in Neuroscience using Graph Neural Networks

Authors: Paul Y. Wang, Sandalika Sapra, Vivek Kurien George, Gabriel A. Silva

arXiv

Although a number of studies have explored deep learning in neuroscience, the application of these algorithms to neural systems on a microscopic scale, i.e. parameters relevant to lower scales of orga...

mental health psychology open access

On the surprising similarities between supervised and self-supervised models

Authors: Robert Geirhos, Kantharaju Narayanappa, Benjamin Mitzkus, Matthias Bethge, Felix A. Wichmann, Wieland Brendel

arXiv

How do humans learn to acquire a powerful, flexible and robust representation of objects? While much of this process remains unknown, it is clear that humans do not require millions of object labels....

mental health psychology open access

Generalized Co-sparse Factor Regression

Authors: Aditya Mishra, Dipak K. Dey, Yong Chen, Kun Chen

arXiv

Multivariate regression techniques are commonly applied to explore the associations between large numbers of outcomes and predictors. In real-world applications, the outcomes are often of mixed types,...

mental health psychology open access

Bio-Inspired Hashing for Unsupervised Similarity Search

Authors: Chaitanya K. Ryali, John J. Hopfield, Leopold Grinberg, Dmitry Krotov

arXiv

The fruit fly Drosophila's olfactory circuit has inspired a new locality sensitive hashing (LSH) algorithm, FlyHash. In contrast with classical LSH algorithms that produce low dimensional hash codes,...

mental health psychology open access

A biologically plausible neural network for local supervision in cortical microcircuits

Authors: Siavash Golkar, David Lipshutz, Yanis Bahroun, Anirvan M. Sengupta, Dmitri B. Chklovskii

arXiv

The backpropagation algorithm is an invaluable tool for training artificial neural networks; however, because of a weight sharing requirement, it does not provide a plausible model of brain function....

mental health psychology open access

Postnatal functional inactivation of the ventral subiculum enhances dopaminergic responses in the core part of the nucleus accumbens following ketamine injection in adult rats

Authors: Hana Saoud, Duco De Beus, Severine Eybrard, Alain Louilot

arXiv

For almost two decades schizophrenia has been considered to be a functional disconnection disorder. This functional disconnectivity between several brain regions could have a neurodevelopmental origin...

mental health psychology open access

Excess Power, Energy and Intensity of Stochastic Fields in Quasi-Static and Dynamic Environments

Authors: Luk R. Arnaut

arXiv

The excess power, energy and intensity of a random electromagnetic field above a high threshold level are characterized based on a Slepian--Kac model for upcrossings. For quasi-static fields, the prob...

mental health psychology open access

Power prior models for treatment effect estimation in a small n, sequential, multiple assignment, randomized trial

Authors: Yan-Cheng Chao, Thomas M. Braun, Roy N. Tamura, Kelley M. Kidwell

arXiv

A small n, sequential, multiple assignment, randomized trial (snSMART) is a small sample, two-stage design where participants receive up to two treatments sequentially, but the second treatment depend...

mental health psychology open access

What Were They Thinking? Pharmacologic priors implicit in a choice of 3+3 dose-escalation design

Authors: David C. Norris

arXiv

If explicit, formal consideration of clinical pharmacology at all informs the design and conduct of modern oncology dose-finding trials, the designs themselves hardly attest to this. Yet in conducting...

mental health psychology open access

An Expectation-Based Network Scan Statistic for a COVID-19 Early Warning System

Authors: Chance Haycock, Edward Thorpe-Woods, James Walsh, Patrick O'Hara, Oscar Giles, Neil Dhir, Theodoros Damoulas

arXiv

One of the Greater London Authority's (GLA) response to the COVID-19 pandemic brings together multiple large-scale and heterogeneous datasets capturing mobility, transportation and traffic activity ov...

mental health psychology open access

Color for the perceptual organization of the pictorial plane: Victor Vasarely's legacy to Gestalt Psychology

Authors: Birgitta Dresp-Langley, Adam Reeves

arXiv

Victor Vasarely (1906-1997)and his important legacy to the study of human perception are brought to the forefront and discussed. A large part of his impressive work conveys the appearance of striking...

mental health psychology open access

Systemic Risk in Market Microstructure of Crude Oil and Gasoline Futures Prices: A Hawkes Flocking Model Approach

Authors: Hyun Jin Jang, Kiseop Lee, Kyungsub Lee

arXiv

We propose the Hawkes flocking model that assesses systemic risk in high-frequency processes at the two perspectives -- endogeneity and interactivity. We examine the futures markets of WTI crude oil a...

mental health psychology open access