# AnalyticBridge

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Ralph Winters
• Male
• United States

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## Ralph Winters's Discussions

Started this discussion. Last reply by Ralph Winters Aug 22, 2011.

### Minority Rules: Scientists Discover Tipping Point for the Spread of Ideas

Started Jul 28, 2011

Started this discussion. Last reply by Ralph Winters May 26, 2011.

# Ralph Winters's Page

## Latest Activity

"Vincent.  I'm not sure what the statistical basis behind this method is.  Would you advocate jumbling all of  the coefficients of a bad linear regression model until it led to an improved best r-square? -Ralph Winters "
Nov 3, 2012
"I think your problem is that you've already oversampled your data and you want to compensate by using the weight statement.  I would use the original data and then used the weight statement to perform the…"
Oct 25, 2012
"Lynne - This is a modeling contest and the judging criteria can be what ever they want it to be.  Take a look at some of the evaluation criteria used by Kaggle and you will see why. https://www.kaggle.com/wiki/Metrics"
Oct 23, 2012
"I had problems with data being imported correctly directly from Excel, so I gave up on using it.  Now, I try to stick to csv files for import.  -Ralph Winters "
Oct 23, 2012
"Varun, I haven't used varclus for a while, but I would say that you could swap one variable for another if it made better business sense. The 1-R^2 ratio is only a guide. Also, look at the relationship between the 2 candidate variables.…"
Oct 20, 2012
"Sounds like your prospect is uninformed about the criteria for a good predictive model.  But then again, a lot of clients can be swayed by these model "competitions" (e.g. Netflix), in which the best model is judged via simple…"
Oct 20, 2012
"Among these 8 worst techniques are the 5 BEST techniques (including linear regression).  Why?  They have stood the test of time and even today can be used to solve most of the worlds statistical problems. If you take the time to learn and…"
Oct 3, 2012
"Vincent.  I think you place too much trust in the machines.  Even if you do not know the intricacies of GLM, you still need to utilize the fact that X**2 is typically greater than x*2 when developing or interpreting a statistical model, a…"
Aug 16, 2012

## Profile Information

Short Bio:
Senior level Data Analyst, Data Miner, and Applications Programmer/Developer with over 10 years experience. I have a strong knowledge of BI, OLAP, data analytics, data mining, SAS, forecasting, relational databases, statistical procedures, logistic regression, predictive data modeling, and database marketing. I have worked with many different databases and operating systems.

Specialties

Data Analytics,ETL,SAS,Data Mining,Text Mining,BI,Business Intelligence,OLAP,Statistics,Database,Complex SQL Querying

Industries: Voice of Customer, Insurance,Pharmaceutical/Healthcare, Banking,Finance, Direct Mail,Direct Marketing,Cellular,Trading Markets

Databases: SQL Server 2000/2005,SAS,SSIS,SSAS,DB/2, ORACLE, Sybase

Operating Systems: Windows, UNIX, LINUX

Software:SAS,C++,Business Objects,COGNOS,MS Management Studio, MS BI Development Studio,Excel, @Risk, Dataflux,UNIX, Shell Scripting, SPLUS, R,Tableau
My Website or LinkedIn Profile (URL):
Field of Expertise:
Business Analytics, Predictive Modeling, Data Mining, Marketing Databases, Quant, Statistical Programming, Web Analytics, Vizualization, Statistical Consulting, Other, Finance, Computer Science, SAS, Industrial Statistics
Years of Experience in Analytical Role:
10
Professional Status:
Technical, Manager, Director, VP, C-Level, Consultant
Interests:
Finding a New Position, Networking, New Venture
What is your Favorite Data Mining or Analytical Website?
http://kdnuggets.com

## Ralph Winters's Blog

### Odds Are, It's Wrong - Science fails to face the shortcomings of statistics

Interesting article from Science News on the ever increasing misuse of statistical significance. Worth a read...

http://www.sciencenews.org/view/feature/id/57091/title/Odds_Are,_Its_Wrong

Posted on March 31, 2010 at 8:49pm

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