Archive for the 'Statstics' Category
07-09-06
Tags:Linguistics Paperville psychology Research statistics The paper itself is short, […]
Bob McMurray will be visiting next Tuesday, and I look forward to meeting with him. Am reading his latest paper on Sciense: Defusing the Childhood Vocabulary Explosion — McMurray 317 (5838): 631 — Science. Bob also has a webpage dedicated to the paper.
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(Research, Paperville, Psychology, Linguistics, Statstics) | 1
07-08-02
Tags:distribution Paperville Research statistics word frequency Many natural phenomena exhibit self-similarity, and statistically this often shows in the frequency distribution of events. Word frequency is a classic example. If you rank words from most frequent to the least, and plot its frequency distribution on a log-log scale, you will get a straight […]
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(Research, Paperville, Statstics) | 0
07-08-02
Tags:health media Paperville reading statistics Teaching
Hardly a day goes by without some sensatinoal claims about what reading does for the mind, or brain. Some turn out to be true, but many skeptical. Here’s a recent news piece from HealthDay that circulated among national newspapers such as the Washington Post.
Lead […]
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(Teaching, Odds'n'Ends, Paperville, Statstics) | 0
07-07-31
Tags:power law statistics Mark Newman and colleagues published a new paper on the Power Law distribution, along with Matlab code for fitting empirical data Fitting a power-law distribution This function implements both the discrete and continuous maximum likelihood […]
A. Clauset, C.R. Shalizi, and M.E.J. Newman, "Power-law distributions in empirical data" E-print (2007). physics/0706.1062
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(Statstics) | 0
07-05-17
Tags:Computing statistics Tanya and I are writing a paper where we will report some Rasch analyses. It’s no where near the sophistication the field of psychometrics has gone nowadays. What we wish to show is that the data stochastically fits a Guttman scale, i.e., items fall on an underlying difficulty scale, where one has to […]
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(Computing, Statstics) | 2
07-05-17
Tags:Computing eye movement modeling reading statistics
MIX used to be a commercial program back in the DOS age, but now Peter Macdonald has made it available free as part of R package, called mixdist. It’s not available at R’s CRAN site, but you can download here.
A big advantage is that it […]
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(Computing, Statstics) | 0
07-05-17
Tags:Computing eye movement modeling reading Research statistics Roger HS Carpenter, whom I read with great respect, recently published a paper with Scott McDonald, where they applied his LATER model (Linear Approach to Threshold with Ergodic Rate) of saccade response time (fixation duration) to reading (see also Mike […]
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(Computing, Research, Statstics) | 0
07-05-17
Tags:eye movement Research statistics George McConkie et al. (1988) concluded that in reading English the landing position distribution — where the eye fixate within a word — is effectively a truncated Gaussian (Normal) distribution. It’s truncated because, presumably, some fixations were meant to be on the word but were landed on adjacent words by […]
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(Research, Statstics) | 1
07-04-29
Tags:Education Paperville statistics Teaching Richard A. Berk at UCLA Stats dept published a paper entitled Randomized Experiments as the Bronze Standard
ABSTRACT:In this paper, the strengths and weakness of randomized field […]
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(Teaching, Paperville, Education, Statstics) | 0
07-04-23
Tags:Education statistics Teaching Department of Ed released this report on Apr 19, 1 day before the Reading First hearing: Reading First: Student Achievement, Teacher Empowerment, National Success Reading First is working. Reading First is the largest and most effective federal early reading initiative in our nation’s history.
The report (PDF (128 KB)) states:
New achievement data reported by the […]
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(Teaching, Education, Statstics) | 0
07-04-18
Tags:Computing google Linguistics statistics The latest email from LDC announced the 15th anneversary of the consortium, along with free copies of Google Web 1T 5-gram database. I paied $150 for it, but it’s still a steal. Now you get a better deal than stealing.
Free Google Data Available
The LDC is pleased to […]
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(Computing, Odds'n'Ends, Linguistics, Statstics) | 2
07-04-03
Tags:statistics Teaching I did my dissertation using a Bayesian model and I am still proud of it. So I have been looking for chances to enlighten my daughter, who is in fourth grade. An opportunity presented itself the other day when I took Jessie to swimming practice. One of her teammates, say Amy, has 3 […]
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(Teaching, Odds'n'Ends, Statstics) | 2
07-01-20
Tags:OddsnEnds statistics
Andrew Gelman has a couple of interesting posts (among many) lately on his blog Statistical Modeling, Causal Inference, and Social Science
Going to college may be bad for your brain?
Not getting the Nobel Prize reduces your expected lifespan by two years
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(Odds'n'Ends, Statstics) | 0
06-11-15
Tags:Computing matlab statistics
Here are two MatLab algorithms illustrating how convolution works. The first is a demo file, masconv
When the user gives the program two vectors (sequences) to be convolved, the program first initialize a temporary matrix of size having number of rows according to the length of the first vector and number of […]
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(Computing, Statstics) | 1
06-09-21
Tags:Computing EEG ica Research statistics CiteULike: Recipes for the linear analysis of EEG. Recipes for the linear analysis of EEG. Parra LC, Spence CD, Gerson AD, Sajda P Online Article Abstract
Neuroimage, Vol. 28, No. 2. (1 November 2005), pp. 326-341.
Authors
In this paper, we describe a simple set of "recipes" for […]
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(Computing, Research, Statstics) | 0
06-08-07
Tags:Computing Research statistics
The RADICAL ICA is developed by Learned-Miller & Fisher (2003). It uses a non-parametric ordering statistics to estimate the entropy rather than using a parametric estimate.
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(Computing, Research, Statstics) | 1
06-08-04
Tags:algorithm Computing ica Research statistics A. Hyvärinen pointed out an intriguing analogy between ICA and Projection Pursuit (Wikipedia stub) — both involve rotating N-D space to look for interesting — defined as nongaussian — distributions or structures in the data. Conceptually, ICA explicitly defined "interesting" as nongaussian and requires successive components to […]
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(Computing, Research, Statstics) | 0
06-08-03
Tags:Paperville Profiles psychology significance test statistics
Some think significance testing is a necessary evil. Not John E. Hunter, who had argued for a moratorium of significance tests for years. His 1997 piece on Psychological science, reference here at CiteULike: NEEDED:. A BAN ON THE SIGNIFICANCE TEST, summaries his arguments. I agree with […]
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(Profiles, Paperville, Psychology, Statstics) | 0
06-08-01
Tags:Computing EEG ERP ica Research statistics Some recent developments.
The logic for the following paper is simple: Do ICA, identify the artifact component, and do a high-pass filter with Wavelet to take out the oculomotor signals, then to put everything back again. This leaves "leaked" brain signals untouched in the supposedly […]
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(Computing, Research, Statstics) | 0
06-08-01
Tags:Computing EEG ERP ica Research statistics
Code for cICA from 1996, though not sure this is what I was looking for.
Code for the Public
This directory contains code to implement various learning algorithms I am interested in. It does not include code available from my publications page.
Contextual ICA
[…]
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(Computing, Research, Statstics) | 0