cshalizi + to_teach   24

Long story; short pier: Clews
"And the time ... in physics class, when we were doing these basic (very basic) labs on probability, and I had a little handheld pachinko machine? With a bunch of balls, and evenly spaced rods, and stalls at the bottom? And you tilt it down, and all the balls roll to the top, and you tilt it back, and they come cascading down, and hit the rods, and either bounce left or right, and in the end you’ve got this lovely little bell curve of balls at the bottom, because law of averages and such most balls bounce left, then right, then left, or some combination thereof, and end up in the middle? And only a few go left-left-left-left, or right-right-right-right, and end up on either end? —Anyway, it’s my turn, so I tilt it down, then back again, and click-clack-click-clack-click, and wouldn’t you know it, I’ve got an almost perfect reverse bell curve. Towering stacks of balls to the left and right, and almost nothing at all in the middle.
"So I go to the teacher running the show and hold it out to him and say, okay, now what, smart guy? (“If it fails to agree, under novel experiments or with refined measuring techniques, it is not said that one should not be happy.”)
"And the teacher looks at the little handheld pachinko machine, cocks an eyebrow, tilts it down, tilts it back, clack-click-clack-click-clack. Perfect bell curve.
"“There,” he says. “Fixed it for you.”
"—And I can’t for the life of me tell you which of those gestures is the argument with the universe, and which the sermon on the way things ought to be, dammit. —And that might just be my problem."
funny:geeky  probability  central_limit_theorem  to_teach  at_that_moment_the_student_was_enlightened 
18 days ago by cshalizi
in-cites - An Essay by Dr. David Donoho
Donoho on how to get highly cited. I suspect some of it is not entirely serious, but it's a bit hard to tell.
statistics  academia  bibliometry  wavelets  donoho.david  via:stodden  to_teach  to:blog 
november 2011 by cshalizi
McSweeney's Internet Tendency: FAQ: The "Snake Fight" Portion Of Your Thesis Defense.
"Q: Do I have to kill the snake?
A: University guidelines state that you have to "defeat" the snake. There are many ways to accomplish this. Lots of students choose to wrestle the snake. Some construct decoys and elaborate traps to confuse and then ensnare the snake. One student brought a flute and played a song to lull the snake to sleep. Then he threw the snake out a window."
--- It would be a Bad Thing for me to send this to the graduate students, wouldn't it?
funny:geeky  funny:academic  snakes  academia  parody  to_teach 
november 2010 by cshalizi
Low frequency cultural noise
Not only is that a great title (as Nick says), but it literally turns out we make the Earth move: "Abnormal cultural seismic noise is observed in the frequency range of 0.01–0.05 Hz. Cultural noise generated by human activities is generally observed in frequencies above 1 Hz, and is greater in the daytime than at night. The low-frequency noise presented in this paper exhibits a characteristic amplitude variation and can be easily identified from time domain seismograms in the frequency range of interest. The amplitude variation is predominantly in the vertical component, but the horizontal components also show variations. Low-frequency noise is markedly periodic, which reinforces its interpretation as cultural noise. Such noise is observed world-wide, but is limited to areas in the vicinity of railways. The amplitude variation in seismograms correlates strongly with railway timetables..."
geology  time_series  fourier_analysis  data_analysis  via:nick-watkins  to_teach  trains 
may 2010 by cshalizi
Reed Richards, Financial Engineer « Rortybomb
"My new goal is to have a financial engineering [Monte Carlo simulation] blow up so bad modeling CDS portfolios that Jessica Alba needs to rush into the office in some sort of superheroine costume to save me."
funny:geeky  comics  finance  monte_carlo  to_teach  to_teach:financial-time-series 
february 2010 by cshalizi
Choosing Your Workflow Applications
We should consider distributing this to the incoming graduate students. (Except we'd need to make it clear that using Word is NOT ACCEPTABLE.)
paper_writing  productivity_software  workflow  advice  healy.kieran  sweave  R  emacs  version_control  latex  to_teach  to_teach:undergrad-research  to_teach:ADA 
august 2009 by cshalizi
Tirvengadum: Linguistic Fingerprints and Literary Fraud
Using the case of an author with a known pseudonym to test methods for establishing identity of authorship. Conclusion: it may be that <
literary_criticism  author-identification  hypothesis_testing  to_teach  via:chl  textual_criticism 
june 2009 by cshalizi
The Devil is in Statistics
"My understanding of statistics is limited": no shit. Tagged "to teach" as an example of a generic, content-free way of deriding any statistical analysis whatsoever whose conclusions one dislikes.
statistics  utter_stupidity  iran  fraud  to_teach  via:abbas-raza 
june 2009 by cshalizi
[0906.0858] Monte Carlo methods in statistical physics: Mathematical foundations and strategies
"n this pedagogical review, we start by presenting the probabilistic concepts which are at the basis of the Monte Carlo method. From these concepts the relevant free parameters--which still may be adjusted--are identified. Having identified these parameters, most of the tangled mass of methods and algorithms in statistical physics Monte Carlo can be regarded as realizations of merely a handful of basic strategies which are employed in order to improve convergence of a Monte Carlo computation. Once the notations introduced are available, many of the most widely used Monte Carlo methods and algorithms can be formulated in a few lines. In such a formulation, the core ideas are exposed and possible generalizations of the methods are less obscured by the details of a particular algorithm." --- If it can deliver on this promise, great.
monte_carlo  statistical_mechanics  statistics  simulation  stochastic_processes  to:NB  to_teach 
june 2009 by cshalizi
CRAN - Package sspir
State-space modeling with linear/Gaussian state evolution and generalized linear models for the observations. Looks reasonable, lacks a few improvements like diffuse initial conditions in the Kalman filter.
state-space_models  time_series  R  filtering  state_estimation  to_teach 
february 2009 by cshalizi
"A Note on the Cobb-Douglas Function": The Review of Economic Studies, Vol. 30, No. 2, (1963 ), pp. 93-94
Shorter Simon & Levy (1963): I am sickened by the weakness of your model's goodness-of-fit test. (Does make me reconsider the many papers I still see using Cobb-Douglas...)
econometrics  simon.herbert  levy.ferdinand  cobb_douglas_production_function  bad_data_analysis  linear_regression  to_teach  via:slaniel  to_teach:undergrad-ADA  have_read 
april 2008 by cshalizi
Statistics Data Sets
compilation listing at UMass Amherst, organized by relevant method.  OK but not outstanding.
statistics  to_teach  data_sets  to_teach:undergrad-ADA 
november 2007 by cshalizi

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