Machine Learning Datasets

Some useful datasets to benchmark ML algorithms are here.

classification dataset
RCV1/V2

tokyo dystopia

This is an excellent full text search engine.
It can be downloaded from here.
http://1978th.net/tokyodystopia/

There are other useful tools by the same author here.
http://1978th.net/
The installation procedure can be bit tricky.
First install tokyo cabinet.
http://1978th.net/tokyocabinet/
And then install the prerequisites for tokyo dystopia
such as zlib (Otherwise you will get an error when you do configure)
And then install dystopia.
To index a file
dystmgr importtsv indexfolder datafile
datafile should be tsv (tab separated values)
1This is a fun program.

To search do:
dystmgr search -pv indexfolder "program"

windows was unable to find a certificate to connect to this network

My laptop connects to the home wireless network successfully but a pop-up appears at the
system tray with the above title (windows xp). The problem here is because I had enabled
IEEE 802.1x but did not have a 802.1x (EAP) environment. The solution is very simple.
Select the corresponding wireless network in the laptop and on properties->authentication tab
disable this authentication. works like a charm!

basic authentication

If you want to provide basic authentication to a folder on your web server, do the following.

1. create a password file
htpasswd -c mypasswdfile username

Now enter a new password. If this file already exists then you do not need to create it by "-c".
Instead you can straight away add to the existing file a new username and a passwd.

2. Setting access.
cd to the folder that you want to protect and create a .htaccess file.
Add the following lines there.

AuthType Basic
AuthName authentication name
AuthUserFile location_of_the_mypasswd_file
AuthGroupFile ifany
Require specific_users can be given by user or set to valid-user

Thats all folks!

firefox proxy

To connect to a remote computer and use it as a proxy do the following.

Open Tools->Options->Advanced->Network
SOCKS Host 127.0.0.1 Port 8080
select SOCKS v5

Now open a tunnel in Cygwin+Poderosa by
ssh -C2qTnN -D 8080 usernam@server

Alternatively, you can do the same using Putty.
For this set up a putty connection with details like host, auto login name etc.
Then load your private key to the server in the pagent.
Now to create the tunnel in putty,
Connection->SSH->Tunnels
In the source port type 8080
select Auto and Dynamic and hit Add.
This will add D8080
Now save those settings and open the connection.

Useful Links

http://www-nlp.stanford.edu/~mgalley/
Lexical Chains tool is available here.

Convert source code to pure HTML. Useful when pasting code on a blog.
http://pygments.org/

book list

non linear programming