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Subject: CART Workshop -- From: Patrick Fleury
Subject: Re: keno -- From: aacbrown@aol.com (AaCBrown)
Subject: Re: Critical Value Tables -- From: aacbrown@aol.com (AaCBrown)
Subject: Bootstrapping -- definition of? -- From: writer@intersurf.com (Patrick Wallace)

Articles

Subject: CART Workshop
From: Patrick Fleury
Date: Sun, 05 Jan 1997 21:20:48 -0800
The Chicago Chapter of the American Statistical Association is happy to
announce that it will present a half-day workshop on 
                      CART 
       (Classification and Regression Trees) 
conducted by 
Dr. Dan Steinberg
Salford Systems 
and 
San Diego State University
CART methodology concerns the use of tree structured algorithms to
classify data into discrete classes.  The terminology was invented by
Breiman, et. al., in the early 1980's.  The technique has found uses in
both medical and market research statistics.  For example, one tree
structured classifier uses blood pressure, age and sinus tachycardia to
classify heart patients as either high risk or not.  Another might use
age related variables and other demographics to decide who should appear
on a mailing list.  There will be other examples from both fields
discussed in the workshop.  
Dr. Steinberg is Professor of Economics at San Diego State University
and President of Salford Systems.  He holds a Ph.D. degree in Economics
from Harvard and has held positions at both the University of California
at San Diego and San Diego State.
He is the leader of the team that ported the original version of CART to
the PC.  He is well known for his previous work on statistical methods
in economics and especially for his work on logistic regression. 
Time: 1:00 PM - 5:00 PM
Registration: 12:30 PM - 1:00 PM
Date January 31, 1997
Place:  The University of Illinois at Chicago
        College of Nursing
        Third Floor Lounge 
        845 South Damen Avenue
 Admission: Members of the Chicago Chapter ASA:  $80.00
           Non Members of the Chicago Chapter: $92.00
           Student Members: $40.00
           Student Non-Members: $52.00 
           (The difference between Student and Regular
            admission is subsidized by the Lucile Derrick Fund)
Advance Registration is encouraged.  Registrations at the door will be
accepted as space permits.  Payment is to be by cash or check only. 
Payment may be sent in early or paid at registration. 
Directions: 
The UIC School of Nursing is just north of the corner of Damen and
Taylor in Chicago.
To get to the School of Nursing, take the Eisenhower Expressway (either
east or west) and get off at Damen.  Proceed to 845 South Damen three
blocks south of the expressway.
Parking is available in parking structure D1 at 1100 South Wood.  The
parking structure is at the corner of Taylor and Wood two blocks east of
Damen.
For more information please e-mail pfleury@mcs.com
or send mail to:
CART Workshop
opNUMERICS
Suite 4A
151 N. Kenilworth
Oak Park, IL 60301
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Subject: Re: keno
From: aacbrown@aol.com (AaCBrown)
Date: 6 Jan 1997 23:44:01 GMT
michaelh@dragon.net.au in <5al5uc$16l@news.mel.aone.net.au>
> Does anyone have any insight into taking multiple
> non-random tickets against a single keno draw?
This is a difficult area with many unsolved problems that appear regularly
in recreational mathematics journals. Do you have a specific question or
are you just looking for references?
Aaron C. Brown
New York, NY
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Subject: Re: Critical Value Tables
From: aacbrown@aol.com (AaCBrown)
Date: 6 Jan 1997 23:46:48 GMT
<32C87FF2.7F8F@dial.pipex.com> writes:
> I need to get hold of Critical Value Tables
Critical values for what? There are thousands of different tables. Some of
the more common ones are easy to find, the more difficult are only
available in journal articles or in statistics programs.
Aaron C. Brown
New York, NY
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Subject: Bootstrapping -- definition of?
From: writer@intersurf.com (Patrick Wallace)
Date: Tue, 07 Jan 1997 00:16:39 GMT
It has been many years since I studied statistics and I haven't kept
up.  Today I've come across a term for which I simply don't know the
meaning and which isn't found in any of my (old, hopelessly outdated?)
texts.
"Bootstrapping was used to estimate standard errors and to construct
confidence intervals."
Did they generate an estimate by subsampling the sample?  Can anyone
help with the definition of "bootstrap" in this context?
-------------------------------------------:----------------------------
Patrick Wallace        504-928-9798        :   You're born with nothing
Scriptwriter (WGA)                         :       and die with nothing.
Voiceover artist "The Voice of Persuasion" : In between, it's Christmas.
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