Data for MATLAB hackers

Here are some datasets in MATLAB format. I'm working on better documentation, but if you decide to use one of these and don't have enough info, send me a note and I'll try to help. Also, if you discover something, let me know and I'll try to include it for others.

Handwritten Digits

USPS 16x16 "Raw" [data/usps_16x16_raw.mat]
Handwritten digits from US post office, "0" through "9". Two cell arrays, one for training, one for testing. d{1} is "one"... d{9} is "nine"...d{10} is "zero". 7291 train cases, 2007 test cases
Warning: test data comes from totally different distribution than training data. Use at your own risk.
USPS Digits 16x16 "Nice" [data/usps_16x16.mat]
A Hinton Mafia classic, pre-processed ages ago by Mike Revow (and perhaps Yann LeCun?); 16x16 grayscale, 1100 of each digit, no test or training splits (welcome to unsupervised world). Case-by-case mapping from this one to the above one is unknown.
USPS Digits 8x8 [data/usps_8x8.mat] [picture]
Same as above but 8x8.
Binary Alphadigits [data/binaryalphadigs.mat] [picture]
Binary 20x16 digits of "0" through "9" and capital "A" through "Z". 39 examples of each class.
From Simon Lucas' (sml@essex.ac.uk), Algoval system.

Faces

Frey Face [data/frey_rawface.mat] [picture]
From Brendan Frey. Almost 2000 images of Brendan's face, taken from sequential frames of a small video. Size: 20x28.
Saul Faces [data/saulfaces.mat] [picture]
Grayscale faces 8 bit [0-255], a few images of several different people.
400 total images, 64x64 size.
From Kearns' and Saul's Advanced Topics in AI course page at Penn.

Text

NIPS Conference Papers Vols0-12 [matlab or raw data]
A whole lot of fun! I massaged the OCR'd data from NIPS1-12 (the pre-electronic submission era) that Yann made available.
I've included a tarball of the massaged raw data, as well as a matlab package which is nicely read in and pre-processed.
See the readme file for the raw data massaging notes and the matlab notes file for explanations of the matlab data.
There are also a couple of extra matlab files, containing conference and page number info which you can't make yourself but seems boring to me, and word counts by author which is cool, but you could easily have made yourself.
20 Newsgroups [data/20news_w100.mat]
A tiny version of the 20newsgroups data, with binary occurance data for 100 words across 16242 postings. I've also tagged the postings by the highest level domain in the array "newsgroups".
Some English Text [data/dfre_txt.mat]
From "Decline and Fall of the Roman Empire" by Gibbon. Cell array, one entry per sentence. Also grab the function data/dfre_read.m to convert the cell arrays to readable text.