Search Results for author: Yaneer Bar-Yam

Found 9 papers, 1 papers with code

Modeling complex systems: A case study of compartmental models in epidemiology

no code implementations6 Oct 2021 Alexander F. Siegenfeld, Pratyush K. Kollepara, Yaneer Bar-Yam

Compartmental epidemic models have been widely used for predicting the course of epidemics, from estimating the basic reproduction number to guiding intervention policies.

Epidemiology

Was India saved by staying below the critical travel threshold and was lockdown and travel restriction the most important public health intervention?

no code implementations24 Feb 2021 Sunil Kumar Raina MD Fiapsm, Yaneer Bar-Yam

Indian response to the pandemic has been described from "India is in denial about the covid-19 crisis" or "India staring at corona virus disaster", to "The mystery of India's plummeting covid-19 cases".

Physics and Society

Lowest-cost virus suppression

no code implementations9 Feb 2021 Jacob Janssen, Yaneer Bar-Yam

Because it is harder and more costly to fight the pandemic when the circulation is higher, we find that the optimal policy is to go to zero or near-zero case numbers.

Unmasking the mask studies: why the effectiveness of surgical masks in preventing respiratory infections has been underestimated

no code implementations8 Feb 2021 Pratyush K. Kollepara, Alexander F. Siegenfeld, Nassim Nicholas Taleb, Yaneer Bar-Yam

Here we show that when the adherence to mask-usage guidelines is taken into account, the empirical evidence indicates that masks prevent disease transmission: all studies we analyzed that did not find surgical masks to be effective were under-powered to such an extent that even if masks were 100% effective, the studies in question would still have been unlikely to find a statistically significant effect.

Segregation Dynamics with Reinforcement Learning and Agent Based Modeling

no code implementations18 Sep 2019 Egemen Sert, Yaneer Bar-Yam, Alfredo J. Morales

Our model promotes the creation of interdependencies and interactions among multiple agents of two different kinds that want to segregate from each other.

reinforcement-learning Reinforcement Learning (RL)

How Do People Differ? A Social Media Approach

no code implementations9 Aug 2017 Vincent Wong, Yaneer Bar-Yam

Research from a variety of fields including psychology and linguistics have found correlations and patterns in personal attributes and behavior, but efforts to understand the broader heterogeneity in human behavior have not yet integrated these approaches and perspectives with a cohesive methodology.

Dimensionality Reduction

Analysis of Infectious-Recovery Epidemic Models for Membership Dynamics of Online Social Networks

1 code implementation29 Aug 2016 Daniel Cooney, Francisco Prieto-Castrillo, Yaneer Bar-Yam

One such model, the irSIR model, made use of the idea of "infectious recovery" to outperform the traditional SIR model in replicating the rise and fall of MySpace and to predict a rapid drop in the popularity of Facebook.

Populations and Evolution Physics and Society

Networks of Economic Market Interdependence and Systemic Risk

no code implementations16 Nov 2010 Dion Harmon, Blake Stacey, Yavni Bar-Yam, Yaneer Bar-Yam

The dynamic network of relationships among corporations underlies cascading economic failures including the current economic crisis, and can be inferred from correlations in market value fluctuations.

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