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From: <aku...@sh...> - 2004-08-20 05:35:11
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11'th Annual Tcl/Tk Conference
October 11 - 15, 2004
New Orleans, Louisiana, USA
Email Contact tc...@tc...
We are pleased to announce the 11'th Annual Tcl/Tk conference
(Tcl'2004), sponsored by Noumena Corporation, in cooperation with
ActiveState and ExpoTech.
Come to New Orleans to:
* Learn about the power of Tcl/Tk.
* Present exciting new work involving Tcl/Tk.
* See the latest developments in Tcl/Tk.
* Meet Tcl/Tk researchers and users from academia, government and industry.
* Plan for future Tcl/Tk related developments.
The conference program will include paper presentations,
tutorials, Birds of a Feather (BOF) sessions and invited key-note
talks.
Registration
Online registration is ready now.
<http://www.tcl.tk/community/tcl2004/reg.html>
Tutorials
Come learn about Tcl from the experts. This year's Tcl/Tk
Conference includes one of the best sets of Tutorials ever offered
including tutorials on Jacl, TclHttpd,
Starkit, Advanced GUI construction, and the API.
<http://www.tcl.tk/community/tcl2004/tut2004.html>
Schedule
More details will be added to the schedule as they become
available.
<http://www.tcl.tk/community/tcl2004/schedule.html>
Those attending the conference will be interested in the
conference info page.
<http://www.tcl.tk/community/tcl2004/info.html>
To keep in touch with news regarding the conference and Tcl events in
general, subscribe to the tcl-announce list.
<http://listserv.activestate.com/mailman/mysubs?show=announce>
Other Forms of Participation
For those who are not presenting a paper at the conference, but
would like to present their work in some form, we do provide
several other forms of participation.
Slots for Works-in-Progress (WIP) presentations and
Birds-of-a-Feather sessions (BOFs) are available on a first-come,
first-served basis by sending email to tc...@tc.... Some WIP
and BOF time slots will be held open for on-site reservation, so
we encourage all attendees with interesting work in progress to
consider presenting that work at the conference.
Conference Committee
Gerald Lester HMS Software General Chair
Andreas Kupries ActiveState Corp
Clif Flynt Noumena Corp Website Admin
Jeffrey Hobbs ActiveState Corp
Kevin Kenny GE Global Research Center
Ken Jones Avia Training
Mac Cody Raytheon Company
Kim Richerts
Steve Landers Digital Smarties
Sheila Miguez Motorola
Larry Virden Tcl FAQ Maintainer
Contact Information
tc...@tc...
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From: Kristian M. <mar...@tc...> - 2004-04-15 19:08:55
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body> Baris-<br> <br> At one time, I had Brad's technical papers where he outlined the estimation procedure used in ICL. They were papers given at psychometrics conferences. <br> <br> I can't find them now, unfortunately, and his home page is no longer there.<br> <br> However, from what I remember of the estimation procedure, it is very similar--almost identical or actually identical--to the procedures used in the modeling program LEM. The approach taken by ICL is also essentially identical to that described by Heinen (1996).<br> <br> LEM is a program developed by J. K. Vermunt, and is freely available at <a href="http://spitswww.uvt.nl/%7Evermunt/">his webpage</a>. It is a general log-linear modeling program that includes IRT models; it's more flexible than ICL, but also somewhat more difficult to use in my opinion. It is also has the limitation of not being open source.<br> <br> The Heinen citation is<br> <br> Heinen, T. (1996). <i>Latent class and discrete latent trait models</i>. Thousand Oaks, CA: Sage.<br> <br> The ICL, LEM, and Heinen approach is similar to marginal maximum likelihood approach (MML), but the latent distribution is estimated rather than fixed. It can also be thought of as a type of latent class or mixture model. EM estimation is used.<br> <br> Hope that helps, <br> <br> Kristian Markon<br> <br> <br> <br> Baris Sahin wrote: <blockquote cite="mid000e01c41724$f6f63a90$c802000a@bs" type="cite"> <meta http-equiv="Content-Type" content="text/html; "> <meta content="MSHTML 6.00.2800.1400" name="GENERATOR"> <style></style> <div> </div> <div><font face="Arial" size="2">Dear all,</font></div> <div> </div> <div><font face="Arial" size="2">I need information about mathematical calculations used in your</font></div> <div><font face="Arial" size="2">project on sourceforge.net.</font></div> <div><font face="Arial" size="2">Item parameter estimation, vs...</font></div> <div> </div> <div><font face="Arial" size="2">Dou you have any documents, or bookmarks about that.</font></div> <div> </div> <div><font face="Arial" size="2">Thank you,</font></div> <div> </div> <div><font face="Arial" size="2">baris</font></div> <div><font face="Arial" size="2"><a href="mailto:bs...@mi...">bs...@mi...</a></font></div> <div> </div> </blockquote> <br> </body> </html> |
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From: Patrick E. M. <pe...@th...> - 2004-04-01 16:13:40
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Alan and Baris, There are many documents that cover the UCON method in Brad's code. I am not sure what level of documentation you wish but I concur with Alan that Baker's book is excellent - and free to boot! The URL for Baker's full, online version is: http://edres.org/irt/ The algorithms might be slightly different from Baker's code. Sorry I can't be more specific but there are so many references available for each little part that it might take me a month to cobble together a complete list. HTH On Wed, 31 Mar 2004 12:26:30 -0800 (PST) Alan Mead <cub...@ya...> wrote: > Baris, > > Patrick may be able to help you partially but I am not aware of any > document describing the calculations used in Brad's software. You > may be aware, Brad passed away--so we cannot ask him. > > I have found Frank Baker's estimation book to be the most detailed > explanation of IRT estimation in general. I can get the full > citation is you like. The book is a little expensive. > > May I ask why you are interested in the calculations? > > -Alan Mead > > --- Baris Sahin <ba...@mi...> wrote: > > > > Dear all, > > > > I need information about mathematical calculations used in your > > project on sourceforge.net. > > Item parameter estimation, vs... > > > > Dou you have any documents, or bookmarks about that. > > > > Thank you, > > > > baris > > bs...@mi... > > > > > __________________________________ > Do you Yahoo!? > Yahoo! Finance Tax Center - File online. File on time. > http://taxes.yahoo.com/filing.html > -- Cheers, Patrick -------------------------------------------- Patrick E. McKnight, Ph.D. Research Assistant Professor Evaluation Group for Analysis of Data University of Arizona Department of Psychology Tucson, AZ 85721 520-621-5463 pem@u.arizona.edu |
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From: Alan M. <cub...@ya...> - 2004-03-31 20:26:35
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Baris, Patrick may be able to help you partially but I am not aware of any document describing the calculations used in Brad's software. You may be aware, Brad passed away--so we cannot ask him. I have found Frank Baker's estimation book to be the most detailed explanation of IRT estimation in general. I can get the full citation is you like. The book is a little expensive. May I ask why you are interested in the calculations? -Alan Mead --- Baris Sahin <ba...@mi...> wrote: > > Dear all, > > I need information about mathematical calculations used in your > project on sourceforge.net. > Item parameter estimation, vs... > > Dou you have any documents, or bookmarks about that. > > Thank you, > > baris > bs...@mi... > __________________________________ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html |
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From: Baris S. <ba...@mi...> - 2004-03-31 13:35:24
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Dear all, I need information about mathematical calculations used in your project on sourceforge.net. Item parameter estimation, vs... Dou you have any documents, or bookmarks about that. Thank you, baris bs...@mi... |
