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Adversarial Risk Analysis (Overview)

Authors: David Banks, Víctor Gallego, Roi Naveiro, David Ríos Insua

arXiv

Adversarial risk analysis (ARA) is a relatively new area of research that informs decision-making when facing intelligent opponents and uncertain outcomes. It enables an analyst to express her Bayesia...

mental health psychology open access

Scalable Bayesian Functional Connectivity Inference for Multi-Electrode Array Recordings

Authors: Yun Zhao, Richard Jiang, Zhenni Xu, Elmer Guzman, Paul K. Hansma, Linda Petzold

arXiv

Multi-electrode arrays (MEAs) can record extracellular action potentials (also known as 'spikes') from hundreds or thousands of neurons simultaneously. Inference of a functional network from a spike t...

mental health psychology open access

An Application of Newsboy Problem in Supply Chain Optimisation of Online Fashion E-Commerce

Authors: Chandramouli Kamanchi, Gopinath Ashok Kumar, Nachiappan Sundaram, Ravindra Babu T, Chaithanya Bandi

arXiv

We describe a supply chain optimization model deployed in an online fashion e-commerce company in India called Myntra. Our model is simple, elegant and easy to put into service. The model utilizes his...

mental health psychology open access

The Ockham's razor applied to COVID-19 model fitting French data

Authors: Mirko Fiacchini, Mazen Alamir

arXiv

This paper presents a data-based simple model for fitting the available data of the Covid-19 pandemic evolution in France. The time series concerning the 13 regions of mainland France have been consid...

mental health psychology open access

Online neural connectivity estimation with ensemble stimulation

Authors: Anne Draelos, Eva A. Naumann, John M. Pearson

arXiv

One of the primary goals of systems neuroscience is to relate the structure of neural circuits to their function, yet patterns of connectivity are difficult to establish when recording from large popu...

mental health psychology open access

Accounting for missing actors in interaction network inference from abundance data

Authors: Raphaëlle Momal, Stéphane Robin, Christophe Ambroise

arXiv

Network inference aims at unraveling the dependency structure relating jointly observed variables. Graphical models provide a general framework to distinguish between marginal and conditional dependen...

mental health psychology open access

Two-stage single-arm trials are rarely reported adequately

Authors: Michael J. Grayling, Adrian P. Mander

arXiv

Purpose: Two-stage single-arm trial designs are commonly used in phase II oncology to infer treatment effects for a binary primary outcome (e.g., tumour response). It is imperative that such studies b...

mental health psychology open access

StructureBoost: Efficient Gradient Boosting for Structured Categorical Variables

Authors: Brian Lucena

arXiv

Gradient boosting methods based on Structured Categorical Decision Trees (SCDT) have been demonstrated to outperform numerical and one-hot-encodings on problems where the categorical variable has a kn...

mental health psychology open access

MatDRAM: A pure-MATLAB Delayed-Rejection Adaptive Metropolis-Hastings Markov Chain Monte Carlo Sampler

Authors: Shashank Kumbhare, Amir Shahmoradi

arXiv

Markov Chain Monte Carlo (MCMC) algorithms are widely used for stochastic optimization, sampling, and integration of mathematical objective functions, in particular, in the context of Bayesian inverse...

mental health psychology open access

Towards Self-Regulating AI: Challenges and Opportunities of AI Model Governance in Financial Services

Authors: Eren Kurshan, Hongda Shen, Jiahao Chen

arXiv

AI systems have found a wide range of application areas in financial services. Their involvement in broader and increasingly critical decisions has escalated the need for compliance and effective mode...

mental health psychology open access

Clustering Analysis of Interactive Learning Activities Based on Improved BIRCH Algorithm

Authors: Xiaona Xia

arXiv

Group tendency is a research branch of computer assisted learning. The construction of good learning behavior is of great significance to learners' learning process and learning effect, and is the key...

mental health psychology open access

HECT: High-Dimensional Ensemble Consistency Testing for Climate Models

Authors: Niccolò Dalmasso, Galen Vincent, Dorit Hammerling, Ann B. Lee

arXiv

Climate models play a crucial role in understanding the effect of environmental and man-made changes on climate to help mitigate climate risks and inform governmental decisions. Large global climate m...

mental health psychology open access

Vector Field Streamline Clustering Framework for Brain Fiber Tract Segmentation

Authors: Chaoqing Xu, Guodao Sun, Ronghua Liang, Xiufang Xu

arXiv

Brain fiber tracts are widely used in studying brain diseases, which may lead to a better understanding of how disease affects the brain. The segmentation of brain fiber tracts assumed enormous import...

mental health psychology open access

A general modelling framework for open wildlife populations based on the Polya Tree prior

Authors: Alex Diana, Eleni Matechou, Jim Griffin, Todd Arnold, Richard Griffiths, John Pickering, Simone Tenan, Stefano Volponi

arXiv

Wildlife monitoring for open populations can be performed using a number of different survey methods. Each survey method gives rise to a type of data and, in the last five decades, a large number of a...

mental health psychology open access

Day Ahead Price Forecasting Models in Thin Electricity Market

Authors: Sayani Gupta, Puneet Chitkara

arXiv

Day Ahead Electricity Markets (DAMs) in India are thin but growing. Consistent price forecasts are important for their utilization in portfolio optimization models. Univariate or multivariate models w...

mental health psychology open access