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Analysis of "Learn-As-You-Go" (LAGO) Studies

Authors: Daniel Nevo, Judith J. Lok, Donna Spiegelman

arXiv

In learn-as-you-go (LAGO) adaptive studies, the intervention is a complex package consisting of multiple components, and is adapted in stages during the study based on past outcome data. This design f...

mental health psychology open access

The Turtleback Diagram for Conditional Probability

Authors: Donghui Yan, Gary E. Davis

arXiv

We elaborate on an alternative representation of conditional probability to the usual tree diagram. We term the representation `turtleback diagram' for its resemblance to the pattern on turtle shells....

mental health psychology open access

A Heterogeneity Based Case-Control Analysis of Motorcyclist Injury Crashes: Evidence from Motorcycle Crash Causation Study

Authors: Behram Wali, Asad Khattak, Aemal Khattak

arXiv

The main objective of this study is to quantify how different policy-sensitive factors are associated with risk of motorcycle injury crashes, while controlling for rider-specific, psycho-physiological...

mental health psychology open access

Evaluation of Ride-Sourcing Search Frictions and Driver Productivity: A Spatial Denoising Approach

Authors: Natalia Zuniga-Garcia, Mauricio Tec, James G. Scott, Natalia Ruiz-Juri, Randy B. Machemehl

arXiv

This paper considers the problem of measuring spatial and temporal variation in driver productivity on ride-sourcing trips. This variation is especially important from a driver's perspective: if a pla...

mental health psychology open access

Learning to Address Health Inequality in the United States with a Bayesian Decision Network

Authors: Tavpritesh Sethi, Anant Mittal, Shubham Maheshwari, Samarth Chugh

arXiv

Life-expectancy is a complex outcome driven by genetic, socio-demographic, environmental and geographic factors. Increasing socio-economic and health disparities in the United States are propagating t...

mental health psychology open access

Online classification of imagined speech using functional near-infrared spectroscopy signals

Authors: Alborz Rezazadeh Sereshkeh, Rozhin Yousefi, Andrew T Wong, Tom Chau

arXiv

Most brain-computer interfaces (BCIs) based on functional near-infrared spectroscopy (fNIRS) require that users perform mental tasks such as motor imagery, mental arithmetic, or music imagery to conve...

mental health psychology open access

Sea Clutter Distribution Modeling: A Kernel Density Estimation Approach

Authors: Hongkuan Zhou, Yuzhou Li, Tao Jiang

arXiv

An accurate sea clutter distribution is crucial for decision region determination when detecting sea-surface floating targets. However, traditional parametric models possibly have a considerable gap t...

mental health psychology open access

Gradient-based Representational Similarity Analysis with Searchlight for Analyzing fMRI Data

Authors: Xiaoliang Sheng, Muhammad Yousefnezhad, Tonglin Xu, Ning Yuan, Daoqiang Zhang

arXiv

Representational Similarity Analysis (RSA) aims to explore similarities between neural activities of different stimuli. Classical RSA techniques employ the inverse of the covariance matrix to explore...

mental health psychology open access

Distinguishing Between Roles of Football Players in Play-by-play Match Event Data

Authors: Bart Aalbers, Jan Van Haaren

arXiv

Over the last few decades, the player recruitment process in professional football has evolved into a multi-billion industry and has thus become of vital importance. To gain insights into the general...

mental health psychology open access

Review on the astronomical estimators of number of flare stars

Authors: A. A. Akopian

arXiv

Review is devoted to estimators (introduced in astronomy by famous astronomer Ambartsumian and his followers) that are used to estimating the unknown number of flare stars and other randomly flashing...

mental health psychology open access

Evaluating search engines and defining a consensus implementation

Authors: Ahmed Kamoun, Patrick Maillé, Bruno Tuffin

arXiv

Different search engines provide different outputs for the same keyword. This may be due to different definitions of relevance, and/or to different knowledge/anticipation of users' preferences, but ra...

mental health psychology open access

Stable memory with unstable synapses

Authors: Lee Susman, Naama Brenner, Omri Barak

arXiv

What is the physiological basis of long-term memory? The prevailing view in neuroscience attributes changes in synaptic efficacy to memory acquisition. This view implies that stable memories correspon...

mental health psychology open access

Associating Growth in Infancy and Cognitive Performance in Early Childhood: A functional data analysis approach

Authors: Pantelis Z. Hadjipantelis, Kyunghee Han, Jane-Ling Wang, Seungmi Yang, Richard M. Martin, Michael S. Kramer, Emily Oken, Hans-Georg Müller

arXiv

Physical growth traits can be naturally represented by continuous functions. In a large dataset of infancy growth patterns, we develop a practical approach to infer statistical associations between gr...

mental health psychology open access

Improving Subseasonal Forecasting in the Western U.S. with Machine Learning

Authors: Jessica Hwang, Paulo Orenstein, Judah Cohen, Karl Pfeiffer, Lester Mackey

arXiv

Water managers in the western United States (U.S.) rely on longterm forecasts of temperature and precipitation to prepare for droughts and other wet weather extremes. To improve the accuracy of these...

mental health psychology open access

A Test for detecting Structural Breakdowns in Markets using Eigenvalue Decompositions

Authors: Malay Bhattacharyya, Siva Rajesh Kasa

arXiv

Correlations among stock returns during volatile markets differ substantially compared to those from quieter markets. During times of financial crisis, it has been observed that traditional dependency...

mental health psychology open access