Simply Salford Blog

Choosing Your Own Preferred MARS Model

Posted by Dan Steinberg on Wed, Aug 20, 2014 @ 09:46 AM

When MARS develops a model it actually develops many and presents you with the one that it judges best based on a self-testing procedure.  But the so-called MARS optimal model may not be satisfactory from your perspective.  It might be too small (include too few variables), too large (include too many variables), too complex (include too many splines, basis functions, or breaks in variables), or otherwise not to your liking based on your domain knowledge. So what can you do to override the MARS process?

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Topics: data mining, Variable Importance, MARS, data science, predictive modeling, predictive model, data analysis, Dan Steinberg, statistics, machine learning

Statistically Significant Words of Wisdom [slideshare]

Posted by Heather Hinman on Wed, Oct 2, 2013 @ 03:50 AM

Motivation. Encouragement. Inspiration. Sometimes this is what we need: a few good words of wisdom. It can be tough to get over the mid-week hump, regardless of profession, but especially for data scientists. What is waiting for you this morning? A bug to fix (one that you fixed on Monday, and Tuesday, and now...)? Inconsistencies in your dataset that are driving you up a wall? Clients waiting for results? Models that just don't make any sense? Whatever it is today, take a deep breath and start your day with some statistically-minded words of wisdom to keep you going.

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Topics: statistics

Regression Webinar Feedback: You Vote. We Listen...

Posted by Heather Hinman on Fri, May 10, 2013 @ 05:50 AM

Experience tells us that people like to be heard. Salford Systems values friendly feedback and critiquing. That is why we recently surveyed those who participated in our recent webinar series, "The Evolution of Regression Modeling."

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Topics: survey, Webinar, statistics