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The tricks propagandists use to beat science
"A model of the way opinions spread reveals how propagandists use the scientific process against itself to secretly influence policy makers."

Even just selectively promoting one-sided results can mislead enough.
Science  politics  simulation 
7 hours ago by magnusc
[1506.04956] The Scope and Limits of Simulation in Cognitive Models
"It has been proposed that human physical reasoning consists largely of running "physics engines in the head" in which the future trajectory of the physical system under consideration is computed precisely using accurate scientific theories. In such models, uncertainty and incomplete knowledge is dealt with by sampling probabilistically over the space of possible trajectories ("Monte Carlo simulation"). We argue that such simulation-based models are too weak, in that there are many important aspects of human physical reasoning that cannot be carried out this way, or can only be carried out very inefficiently; and too strong, in that humans make large systematic errors that the models cannot account for. We conclude that simulation-based reasoning makes up at most a small part of a larger system that encompasses a wide range of additional cognitive processes."
to:NB  simulation  mental_models  cognitive_science  marcus.gary 
yesterday by cshalizi
Ptolemy Project Home Page -
project studies modeling, simulation, and design of concurrent, real-time, embedded systems. The focus is on assembly of concurrent components. The key underlying principle in the project is the use of well-defined models of computation that govern the interaction between components. A major problem area being addressed is the use of heterogeneous mixtures of models of computation.
simulation  model  design 
4 days ago by jwh
Strymon (pronounced “stream-on”) is a novel system for carrying out online analyses and simulations of large datacenters. Strymon leverages existing logging and monitoring pipelines of modern production datacenters to ingest cross-layer events in a streaming fashion and predict possible effects of such events in what-if scenarios by simulating the hypothetical datacenter state alongside the real one.
6 days ago by mpm
A practical guide to econometrics in R
Nice example of how to simulate regression values of interest
RCode  simulation  General_Stats 
8 days ago by bfoster

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