Category Archives: percolation theory

Earth Day 2019: So how do people transition to the new energy economy?

I’ve been pretty hard on the Green New Deal. That’s partly because its proponents don’t seem to see that a transition to a new zero Carbon energy economy is inevitable. It’s opponents don’t see that either. It may not come … Continue reading

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Posted in Amory Lovins, an ignorant American public, Ørsted, capitalism, climate business, climate change, climate disruption, climate economics, climate justice, compassion, corporate citizenship, corporate litigation on damage from fossil fuel emissions, corporate responsibility, corporate supply chains, corporations, ecomodernism, electric vehicles, engineering, ethics, extended producer responsibility, extended supply chains, fossil fuel divestment, fossil fuel infrastructure, Gaylord Nelson, global warming, Green New Deal, Hermann Scheer, investment in wind and solar energy, investments, John Farrell, Joseph Schumpeter, LBNL, leaving fossil fuels in the ground, local generation, local self reliance, Mark Carney, Mark Jacobson, microgrids, New England, NIMBY, organizational failures, Orsted, percolation theory, planning, public education, public welfare, RevoluSun, Richard Branson, science, solar democracy, solar domination, solar energy, solar power, Sonnen community, SunPower, sustainability, sustainable landscaping, Talk Solar, technology, temporal myopia, Tesla, the energy of the people, the green century, the right to know, the value of financial assets, Tony Seba, tragedy of the horizon, utility company death spiral, UU, wind energy, wind power, zero carbon | Leave a comment

Sampling: Rejection, Reservoir, and Slice

An article by Suilou Huang for catatrophe modeler AIR-WorldWide of Boston about rejection sampling in CAT modeling got me thinking about pulling together some notes about sampling algorithms of various kinds. There are, of course, books written about this subject, … Continue reading

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Posted in accept-reject methods, American Statistical Association, Bayesian computational methods, catastrophe modeling, data science, diffusion processes, empirical likelihood, Gibbs Sampling, insurance, Markov Chain Monte Carlo, mathematics, Mathematics and Climate Research Network, maths, Monte Carlo Statistical Methods, multivariate statistics, numerical algorithms, numerical analysis, numerical software, numerics, percolation theory, Python 3 programming language, R statistical programming language, Radford Neal, sampling, slice sampling, spatial statistics, statistics, stochastic algorithms, stochastic search | Leave a comment

France, and Mathematics

Cédric Villani, does Mathematics. “Problems worthy of attack, prove their worth by hitting back.” — Piet Hein

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Posted in abstraction, Google, mathematics, mathematics education, maths, networks, Pagerank, percolation theory, point pattern analysis, probability, rationality, reasonableness, stochastic algorithms | Leave a comment