Clustering Handwirtten Digits (digitalized optical images)

December 12, 2009
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In this example, we show the a clustering exercise on Optical Recognition of Handwritten Digits Data Set available @ UCI data set repository (Link). This exercise is a standard application of HOSVD by stacking 8X8 matrix of digitalized&nbs...
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Some Preliminaries

December 12, 2009
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As I mentioned in an earlier post, I am going to build a new site dedicated to SAS jobs. Before I actually start coding the site, there are some preliminary decisions that need to be made. I have already decided to use Ruby on Rails for the framework. ...
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DO Loops: Part Deux (It’s a pun. Get it?)

December 11, 2009
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For Part II in this series of posts on DO Loops in SAS, I wanted to discuss an application slightly more complex than the previous example. Loops can not only be used to perform data correction (as shown in the previous post), but can also be very useful in creating new records where none...
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Tensor in SAS

December 10, 2009
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Tensor, a math concept for high order array, is a very useful tool in modern data mining applications. HOSVD, the counter part of SVD in higher order array, is at the heart of modern applications, such as face recognition and clustering, segmentation...
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Some Fun with SAS and Perl Regular Expressions

December 9, 2009
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This post assumes you have a little understanding of how regular expressions work and specifically how SAS implements regular expressions. I recently did something like this and thought it would be good to share. Suppose you have a program that search...
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DO Loops: Useful Tool in SAS User’s Toolbox

December 9, 2009
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DO Loops in SAS are outside the scope of what most beginning users feel comfortable tackling. However, they are a powerful, time-saving tool in the report writer’s toolbox. For those unfamiliar with programming, loops are a set of instructions that the programmer tells the computer to repeat until predefined condition(s) are true. It’s a...
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Finding 9.2 Content

December 8, 2009
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support.sas.com is loaded with detailed information about SAS 9.2. (I'll include a few references at the end of this post.) We heard you say that you were looking for more generic information about SAS 9.2; the 5,000 foot view if you will. I pi...
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SAS 9.2 and Marketing Optimization 5.3 Deployment – A personal story

December 4, 2009
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Contributed by Dwight Mouton, Customer Intelligence Product Management, SAS I would consider myself a SAS User rather than an "IT" type, which adds two perspectives to my story. First, there will be a little less detail than what my Sales Engine...
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Work With Oracle: A Quick Sheet for SAS Programmers

December 4, 2009
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(Note: All the followings are tested on Windows XP environment.) 0. Install Oracle Database 10g Express Edition Fast (and free) to download, easy to deploy and simple to admin–for learning and testing purpose, Oracle Database 10g Express Edition (Oracle Database XE, a mini version of Oracle Database 10g Release 2) are strongly recommended: 0.1 Download it...
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