similar to: Automated essay scoring by R

Hi R-help, I have a database of 10 students who have written an overall of 78 essays. The challenge? I would like to identify who wrote the 79th essay. Has anybody used R in this context? Even if not, would you suggest me which pattern recognition technique I might possibly apply? Thanks a lot and regards, Tom --------------------------------- [[alternative HTML version

In our rails application, there is a model called Essay and another called Tag. Essay ''has_and_belongs_to_many'' tags. When a user CREATEs an essay, he gives the text in a text field which corresponds to a database column in the essays table. The _form.rhtml also provides a text area that lets the user tag the essay with keywords. The text area does not correspond directly to

Dear R team, The following piece of code (to use the lsa package) works fine on my mac os x, but when I run the same code on Windows XP, it doesn't work any more. ### code: library("lsa") matrix1 = textmatrix("C:\\Documents and Settings\\tine stalmans.TINE. 000\\LSA\\cuentos\\", stemming=TRUE, language="spanish", minWordLength=2, minDocFreq=1,

Probably not the best time to ask this considering people are busy for the next release, but we're looking at trac for a project (apparently) and I remembered that there was a Xiph plan to move away from it. Does anyone have time to recall the reasons (I don't need an essay, just a keyword or two would be appreciated. -- imalone

Hi netters, I want to learn a decision tree from a series of instances (learning data). The packages tree or rpart can do this quite well, but the scoring functions (splitting criteria) are fixed in these packages, like gini or something. However, I'm going to use another scoring function. At first I wanna modify the R code of tree or rpart and put my own scoring function in. But it

Hi, I was wondering if I can have some advice on the following problem. Let's say that I have a problem in which I want to predict a binary outcome and I use logistic regression for that purpose. In addition, suppose that my model includes predictors that will not be used in scoring new observations but must be used during model training to absorb certain effects that could bias the

i used the hivelogic article to install ruby on rails to my mac: http://hivelogic.com/articles/2005/12/01/ruby_rails_lighttpd_mysql_tiger everything works great using the script/server command, but isn''t that still using WEBrick? how do i server my apps with lightTPD? i tried following the instructions given here: http://duncandavidson.com/essay/2005/12/railsonlighty but have had no

http://dovecot.org/releases/1.2/alpha/dovecot-1.2.alpha2.tar.gz http://dovecot.org/releases/1.2/alpha/dovecot-1.2.alpha2.tar.gz.sig Mainly the same fixes as in v1.1.3 -> v1.1.4 plus some more v1.2-specific fixes. Not many people have been testing v1.2 releases. Wonder if there's something I could do to improve that. I guess v1.2 is kind of missing those killer features that would get a

Dear Members, I required to score probability of survival before specified time using fitted cox model on scoring dataset. On the training sample data I am able to get the probability of a survival before time point(t), but on the scoring dataset, which will have only predictor information I am facing some issues. It would be great help for me if you tell me where am I going wrong! Here is the

Dear useRs from the physiology department, Does someone know of an implementation of the SF-36 questionnaire scoring in R? I only found SAS and STATA versions, e.g http://gim.med.ucla.edu/FacultyPages/Hays/util.htm Dieter

Hello, Has anyone tried out the security scoring tool at http://www.cisecurity.org/bench_freebsd.html? Any thoughts or opinions? Regards, stheg __________________________________ Do you Yahoo!? Yahoo! Mail - 250MB free storage. Do more. Manage less. http://info.mail.yahoo.com/mail_250

Hi all Is there a way to do adaptive query scoring (as in popular results returned by a query should get more weight because they are getting clicked more often) in xapian? Is this what the rset class should be used for? I could write a php app to do adaptive results scoring for separate words (just recording the clicks and then have a cron:ned script add weight to the document_id:s for the

I''ve been struggling a bit trying to figure out the best way to design/implement a system with authentication/authorization, and was hoping some of you may be able to offer some advice.. At the moment, I have a system with 4 different types of users - clients, administrators, sales_reps, and public_users. I''m using "Authorizing Users with Roles" from the Rails Recipes

Hi all Why Rails 3 installation is so pane full...? I am using fedora 10, ruby 1.8.6 rails 2.3.5/2.3.8 Now want to upgrade to rails3 i tried so many links... but nothing find essay.. for Rails 3 problem in ruby installation please suggest good links ... Thanks.... Regards Shyam 971-618-9650 shyam.heroku.com -- You received this message because you are subscribed to the Google Groups

- Peut-on poser des questions en fran?ais? - Tr?s simple. Je fais un programme "truc.r" (sous emacs) Ce programme r?alise des graphiques. Je voudrais les enregistrer au fur et ? mesure -- sinon, quand la session est finie, ces graphiques sont perdus-- J'ai essay?: pdf("truc.pdf") Mais le fichier "truc.pdf" cr?? est vide. Comment fait-on? Merci et salutations

Hi I have used fa() to perform a factor analysis of a psychological battery which is thought to have 11 factors. I can identify which factors the loadings relate to easily enough because I can see which items are loading onto each of the columns in the $loading output. However, how can I identify which items or loadings are being used to create each of the columns in the $scores output? I have

Hi All, I am working on some ordinal logistic regresssions using LRM in the Design package. My response variable has three categories (1,2,3) and after using the creating my model and using a call to predict some values and I wanted to use a simple .5 cut-off to classify my probabilities into the categories. I had two questions: a) first, I am having trouble directly accessing the

Hola: Me gustaría que me recomendarais paquetes o alguna forma de "hincarle el diente" para empezar a investigar en la siguiente cuestión. El proyecto trata de que, a partir de un numero grande de documentos pdf que contienen, básicamente, Notas Simples del Registro de la Propiedad deseamos extraer para cada uno de esos documentos una serie de ítems de información, a saber: -Finca

Dear all, I have been doing tests using SVM, random forests and PPR. The data is from a data stream (that is, the data for training and for test is always increasing / changing). With SVM and random forests everything is ok, but with ppr there are situations where it crashes. For the examples I have used I noticed that if one of the variables has just one value (it can happen), it crashes for

Hello all: I have a couple CentOS 4 servers (all up-to-date) that are having strange command failures. I first noticed this with a perl script that uses lots of system calls. Basically, sometimes a command just won't run: thoth(52) /tmp> ls thoth(53) /tmp> ls thoth(54) /tmp> ls thoth(55) /tmp> ls learner lost+found/ thoth(56) /tmp> ls learner lost+found/ thoth(57)