mars

Here is a nice and easy to understand presentation on Random Forest by Killian Weinberger, a Professor at Cornell and expert on Deep Learning and Regression Trees. Unlike MARS, which produces value models, Random Forests is considered a "Black Box" method in the context of machine learning...

This is to announce the creation of an open source project for a new Appraisal Model Adjustment Standard (AMAS) located on Github.com: https://github.com/wcraytor/AMAS. I am in contact (email exchange and the like) with the creators and developers of both systems, i.e. statistians at Salford...

I finally got around to looking at the latest version of Stephen Milborrows R Language "earth" package. Last time I used it about 12 years ago it was terrible. Now I can say that it's pretty comparable to the $15,000 product MARS from Salford Systems. Here is the link...

For those who are getting back into appraisal to earn some extra income in retirement (I am now 71), I just finished my first residential appraisal since when I quit back in 2008. It was a retrospective estate appraisal of an average home in El Granada, CA. I originally estimated two weeks...

For anybody out there who happens to have a license for MARS based on the old subscription fee of $360/year, you are in luck. The price now goes up effectively to $15,000/year for new licenses- which require buying the whole Salford-Sytesms SPM package. T -This has something to do with...

Isn't about time we have a separate forum group for "Appraisal Statistics"? 1. And, it is time for me to say something about Appraisal Statistics as taught by the Appraisal Institute and others. The discipline has done a lot of harm to the profession!. The typical book in appraisal...