Collaborative Filtering on Skewed Datasets

Tags

ase, dataset, filtering

Special Forums News, Links, Events and Announcements UNIX and Linux RSS News Collaborative Filtering on Skewed Datasets

05-22-2008

Registered User

26,240, 27

Join Date: Sep 2000

Last Activity: 1 August 2008, 3:09 PM EDT

Posts: 26,240

Thanks Given: 0

Thanked 27 Times in 26 Posts

Collaborative Filtering on Skewed Datasets

HPL-2008-50 Collaborative Filtering on Skewed Datasets - Banerjee, Somnath; Ramanathan, Krishnan
Keyword(s): collaborative filtering, skewed dataset, pLSA
Abstract: Many real life datasets have skewed distributions of events when the probability of observing few events far exceeds the others. In this paper, we observed that in skewed datasets the state of the art collaborative filtering methods perform worse than a simple probabilistic model. Our test bench inc ...
Full Report

More...

Linux Bot

View Public Profile for Linux Bot

Find all posts by Linux Bot

Previous Thread | Next Thread

5 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Who are all opening my datasets,?

Hi, I need a command/script, who opened my dataset, consider a situation like, if a user has opened the dataset few days back then, that command/script should list his/her id. I don't want audit on my dataset, i need only list of users who are using my dataset. Thank you.

2. AIX

Problem in ftpying the datasets containing comp values to AIX from mainframe

Hi, When i am trying to ftp COBOL generated data sets which contain comp values to AIX in ASCII mode. the comp values are getting corrupted. If i ftp the data set in binary mode it is working properly, but for this i have to change some compiler options in the COBOL. Also if i want to use the...

3. UNIX for Dummies Questions & Answers

ls command showing skewed listing

Hello, I'm running the ls command on an HP-UX 11i platform and am getting skewed listings. In other words, I see 3 columns of perfectly aligned file names, except 1 file is shifted by 2 or 3 bytes. The file to the immediate left of it seems to be causing the problem, for when I do an ls on...

4. Solaris

Copy data from zfs datasets

I 've few data sets in my zfs pool which has been exported to the non global zones and i want to copy data on those datasets/file systems to my datasets in new pool mounted on global zone, how can i do that ?

5. UNIX for Advanced & Expert Users

Planning on writing a Guide to Working with Large Datasets

In a recent research experiment I was handling, I faced this task of managing huge amounts of data to the order of Terabytes and with the help of many people here, I managed to learn quite a lot of things in the whole process. I am sure that many people will keep facing these situations quite often...

LEARN ABOUT DEBIAN

gifti_test

GIFTI_TEST(1)							   User Commands						     GIFTI_TEST(1)

NAME

       gifti_test - test reading/writing a GIFTI dataset

SYNOPSIS

       gifti_test [...]

OPTIONS

       -help  Show usage help.

       -gifti_hist
	      Show giftilib history.

       -gifti_ver
	      Show giftilib version.

       -encoding TYPE
	      Set the data encoding for any output file.

	      TYPE = ASCII	: ASCII encoding

	      TYPE = BASE64	: base64 binary

	      TYPE = BASE64GZIP : base64 compressed binary

       -gfile OUTPUT
	      Write out dataset as gifti image.

       -infile INPUT
	      Specify INPUT as the GIFTI dataset to read.

       -no_data
	      Do not write out data.

       -show  Show final gifti image.

       -slist LEN s0...
	      Restrict output to list of length LEN.

       -verb VERB
	      Set verbose level.

EXAMPLES

       1. read in a GIFTI dataset (verbose, show output?)

	      gifti_test -infile dset.gii

	      gifti_test -infile dset.gii -verb 3

	      gifti_test -infile dset.gii -show

       2. copy a GIFTI dataset (check differences?)

	      gifti_test -infile dset.gii -gfile copy.gii

	      diff dset.gii copy.gii

       3. copy a GIFTI data, but write out only 3 surf indices: 0,4,5

	      gifti_test -infile time_series.gii -gfile ts3.gii -slist 3 0 4 5

SEE ALSO

       Website: http://www.nitrc.org/projects/gifti

AUTHOR

       Richard Reynolds - SSCC, DIRP, NIMH, National Institutes of Health

       This manual page was written by Michael Hanke <michael.hanke@gmail.com>, for the Debian project (but may be used by others).

gifti_test							     June 2010							     GIFTI_TEST(1)

UNIX and Linux RSS News