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• tfidf, am I understanding it right?

  - by alskndalsnd

  Hey everyone, I am interested in doing some document clustering, and right now I am considering using TF-IDF for this. If I am not wrong, TFIDF is particularly used for evaluating the relevance of a document given a query. If I do not have a particular query, how can I apply tfidf to clustering?

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• best way to escape and create a slug

  - by Mac Taylor

  hey guys im somehow confused in using proper functions to escape and create a slug i used this : $slug_title = mysql_real_escape_string()($mtitle); but someone told me not to use it and use urlencode() which one is better for slugs and security as i can see in SO , it inserts - between words : http://stackoverflow.com/questions/941270/validating-a-slug-in-django thanx in advanced

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• Cocoa: Cannot Archive Array of Values Representing CGPoints

  - by umer sufyan

  Hey guys, I have converted CGPoint To NSValue and put all the resulting values in q NSArray but when i use [NSKeyedArchiver archiveRootObject:ArrayName toFile:PointArrayFile]; it gives me error. If some one know please do help me how can I achieve this ... Thanks Umer Sufyan

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• The post thumbnail size issues

  - by user195257

  Hey Im using this in my wordpress functions.php add_theme_support( 'post-thumbnails' ); set_post_thumbnail_size( 150, 150 ); Im then using it like this <a href="<?php the_permalink(); ?>"><?php the_post_thumbnail(); ?></a> However, the image is displayed <img width="150" height="109" ... The images themselves are 300px x 300px, anyone know whats going on here?

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• Learning Perl, what to code in?

  - by Befall

  Hey all, I've got a few books and helpful guides to Perl from my company's scripting guy, but I can't seem to find where the best IDE for Perl is. Mind you, simple is better. I'm just learning for now. Thanks in advance!

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• Eclipse CDT Settings

  - by kon

  Hey Guy, I'm trying to compile one single cpp file with Eclipse CDT and MinGW. On command line, c++ Test.cpp does the job. If I try to compile the file with Eclipse, I get errors telling me that I don't have included string.h in my lib files. How do I setup Eclipse just to perform "g++ Test.cpp" without considering my lib files as independent files? Thanks for helping :) Kon

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• GWT ScrollTable performance problem

  - by wolfi

  Hey all, I'm having a little performance problem with the gwt (incubator) ScrollTable. It's rendering really slow. Not even when I'm loading a lot of data - it happens already with a few rows. Or is it possible that the deserializing of the data takes so long? I'm using GWT 2.0 and IE. Maybe someone has the same problem or a solution for it. Thx and Happy Easter!

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• Is there a difference between only <NSXMLParserDelegate>, only setDelegate method, or the use of bot

  - by gotye

  Hey, I noticed that when I do this : [myParser setDelegate:self]; it works :D (even if I didn't add the code in the header file ... you know, the <delegateStuff, delegateOtherStuff> in the interface declaration) When are you supposed to modify the header file to make your delegate work ? Is the setDelegate method enough to make it work ? Cheers for any help ;) Gauthier

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• Shortest Path algorithm of a different kind

  - by Ram Bhat

  Hey guys, Lets say you have a grid like this (made randomly) Now lets say you have a car starting randomly from one of the while boxes, what would be the shortest path to go through each one of the white boxes? you can visit each white box as many times as you want and cant Jump over the black boxes. The black boxes are like walls. In simple words you can move from white box to white box only.. You can move in any direction, even diagonally.

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• Can't find ant in the Android SDK

  - by StormShadow

  Hey all, I'm working my way through APress's Beginning Android 2 and I've made it all the way to chapter 3, where we build a skeleton app. The book tells me to compile my application by typing "ant" in the command line, but my pc doesn't know what "ant" is yet. I checked in the SDK files and it looks like it wasn't included with the Android SDK. Does anybody know where ant is? Thanks

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• Python date time, get date 6 months from now

  - by Eef

  Hey, I am using the datetime module. I am looking to calculate the date 6 months from the current date. Could someone give me a little help doing this? Edit: The reason I am wanting to generate a date 6 months from the current date is to produce a Review Date. If the user enters data into the system it will have a review date of 6 months from the date they entered the data. Does this help? Cheers Eef

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• Adobe AIR - Write a file and specify as read-only

  - by Mauricio

  Hey Stack Overflow community, Another Adobe AIR question for you: Can we write files to the file system and leave them as read-only in Adobe AIR? In the future, we would overwrite these files (or delete them and write a new one). Thanks, Mauricio

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• what is the command in terminal to extract text from a file

  - by PRINCE EMMIT

  hey can any one tell me to write the command in terminal to extract text from a html file using tags like,,,,...etc.... -i am thinking of putting these tags in a text file... -then i wanna match the tags with the help of command of terminal... -then i have to put that into a dump file(text)... because...i wanna change the text with language preference.... i tried with awk script and egrep too....but i got poor result...

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• Convert SQL query to Ruby help

  - by Verloren

  Hey all, I need to query my database table to find which employee has the most support tickets related to them. I can do this just fine using this MySQL query: SELECT employee_id, COUNT(id) AS number_of_tickets FROM tickets GROUP BY employee_id ORDER BY number_of_tickets DESC LIMIT 1; How would write this in Ruby-on-Rails? Thanks very much for your assistance. I use Ruby version 1.8.6, Rails version 2.2.2 and MySQL Server version 5.0.

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• Unit testing in python?

  - by yossi.ittach

  Hey - I'm new to python , and I'm having a hard time grasping the concept of Unit testing in python. I'm coming from Java - so unit testing makes sense because - well , there you actually have a unit - A Class. But a Python class is not necessarily the same as a Java class , and the way I use Python - as a scripting language - is more functional then OOP - So what do you "unit test" in Python ? A flow? Thanks!

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• Use only alpha channel of texture in OpenGL?

  - by Chris

  Hey, I'm trying to draw a constant color to the framebuffer and blend it using the alpha channel from an RGBA texture. I've been looking at glBlendFunc and glBlendColor, but can't seem to figure out a way to ignore the RGB values from the texture. I'm thinking I'll have to pull out the alpha values myself and make a second texture with GL_ALPHA. Is there a better way to do this? Thanks!

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• How can I extract text from between two delimiters on a line in bash?

  - by syker

  What is a regex I can write in bash for parsing a line and extracting text that can be found between two | (so that would be ex: 1: |hey| 2: |boy|) and keeping those words in some sort of array?

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• Why do I get this error "EMCIDeviceError" when opening some wav files in my program.

  - by Roy

  Hey I have this program that has been working fine until I tried to open this one wav file? Not sure what the problem is or that I understand it? Do I need to find a new component to use for this file or what? I am using Delphi 4 Pro and the standard VCL component for Media Player. I am looking for a good new component that offers more help with wav and mp3 files too but not found what I am looking for yet?

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• what it is Sharepoint ? Main advantages for programmer

  - by netmajor

  Hey, For some time i see that employers demand from programmers knowing Sharepoint, but I have problem with understand what it is :/ But today I was at IT training, and main guy told something like that:" Sharepoint is platform for commit code for programmer, control of version etc..." It is true? It looks like SVN tool... Can someone explain me what advantages it have for c# programmer? Thanks ;)

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• SIMPLE file reading in Perl

  - by Befall

  Hey guys, The other answered questions were a bit complicated for me, as I'm extremely new to using Perl. I'm curious how Perl reads in the files, how to tell it to advance to the next line in the text file, and how to make it read all lines in the .txt file until, for example, it reaches item "banana". Any and all help would be appreciated, thanks!

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• defining class relationships in c# and visual studio 2010

  - by andy

  Hey guys, in Visual Studio 2010 I can point to a bunch of classes and create a diagram. However, the diagram by default doesn't recognize any relationships between the classes, except inheritance and implementations. Is there a way, ideally by using Attributes, to define class and property relationships and associations in such a way that it is picked up by a new Class Diagram automatically? cheers!

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• Force max length for string in PostgreSQL

  - by Jimmy

  Hey guys, I am using heroku for a RoR application and am trying to manually set the length of a string column and am having trouble. I tried making a migration along the lines of change_column :posts, :content, :string, :length => 10000 I assumed this would work but no such luck, anyone have some pointers? Thanks!

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• Using ListViews on the Android?

  - by Robert

  Hey everyone, I am just getting started with the Android SDK and I had a quick question. I am trying to set up a ListView with a rectangle of color on the left and then a bit of text for each row. I also want to make it so I can click each entry in the list and open a new activity to display some information (similar to the contact list). Anyone have any examples to help me out? Thanks a ton, Robert Hill

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• Registration Form check PostgreSQL is username is already taken

  - by MrEnder

  Hey I'm really new to PHP and PostgreSQP or any database in that matter. So I'm at a loss how to do this. I need an if statement that says. If(the username user just typed in is already in database) { my code here } the variable the username that the user just typed in is $userNameSignup how would I do that with PHP for PostgreSQL? also how might I redirect people to a new page once they have completed the form properly? Thanks Shelby

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• raising custom events to allow web user controls to intercommunicate

  - by HeoQue

  Hey , I have 2 web user controls, both inherit the same base class which extends UserControl. I want to raise an event on one and the other should be aware of it. both are on the same page however the 2nd control never handles the custom event i raised on the 1st one ! any ideas ? please just point to an implementation of possible (BTW, i'm googling it since morning but no luck !)

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