667 per centimeter : climate science, quantitative biology, statistics, and energy policy
“Linnaeus, letting fall his hand on a bunch of Moss at his side, exclaimed, ‘Underneath this palm is material for the study of a lifetime’; and if this is true of a handful of Moss, the treasures of a township must be inexhaustible. We need not seek for new worlds to conquer.“ — Timothy Otis Fuller, “A Sketch of the Flora of Needham”, 1886
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Category Archives: Xanadu

On lamenting the state of the Internet or Web

Posted on 12 August 2018 by ecoquant

From time to time, people complain about the state of the Internet or of the World Wide Web. They are sometimes parts of governments charged with mitigating crime, sometimes privacy advocates, sometimes local governments or retails lamenting loss of tax … Continue reading →

Posted in American Association for the Advancement of Science, an ignorant American public, an uncaring American public, Anthropocene, being carbon dioxide, bollocks, Boston Ethical Society, bridge to nowhere, Buckminster Fuller, capricious gods, Carbon Worshipers, card games, civilization, climate change, consumption, corporate responsibility, Cult of Carbon, Daniel Kahneman, data centers, David Suzuki, denial, design science, ethical ideals, Faster Forward, Hyper Anthropocene, hypertext, ignorance, Internet, Joseph Schumpeter, making money, Mathbabe, networks, organizational failures, superstition, Ted Nelson, the right to know, the tragedy of our present civilization, transclusion, Xanadu, ZigZag | 1 Comment
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  • Kalman filtering and smoothing; dynamic linear models



    Also, see datasets and R examples to accompany this excellent text.





    I have used dlm almost exclusively, except when extreme efficiency was required. Since Jouni Helske's KFAS was rewritten, though, I'm increasingly drawn to it, because the noise sources it supports are more diverse than dlm's. KFAS uses the notation and approaches of Durbin, Koopman, and Harvey.

    ``The real problem is that programmers have spent far too much time worrying about efficiency in the wrong places and at the wrong times; premature optimization is the root of all evil (or at least most of it) in programming.''
    Professor Donald Knuth, 1974
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