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dansteinbergblog.com

Linear Combination Splits in Decision Trees - Dan Steinberg's Blog

http://www.dansteinbergblog.com/dan-steinberg/linear-combination-splits-in-decision-trees

Subscribe to this Blog. Linear Combination Splits in Decision Trees. Decision trees, and CART in particular, were originally designed to split data using a single predictor. For continuous predictors the split is the form:. If X = c hen go left. For categorical predictors the split is of the form:. If X is in { value1, value2,.} then go left. If a1X1 a2X2 a3X3. Linear Combination Lists (LCLISTS). LCLIST X1, X2, X3, X4. LCLIST X5, X6. LCLIST X7, X8, X9. These commands will not only activate the search for...

salford-systems.com

Data Mining And Predictive Analytics Software - Random Forests

https://www.salford-systems.com/products/randomforests

Breiman and Cutler’s Random Forests:. Random Forests is a bagging tool that leverages the power of multiple alternative analyses, randomization strategies, and ensemble learning to produce accurate models, insightful variable importance ranking, and laser-sharp reporting on a record-by-record basis for deep data understanding. Its strengths are spotting outliers and anomalies in data, displaying proximity clusters, predicting future outcomes, identifying important predictors, discovering data pattern...

salford-systems.com

Data Mining And Predictive Analytics Software - TreeNet - A Data Flexible Powerful Data Mining Tool

https://www.salford-systems.com/products/treenet

Interaction detection establishes whether interactions of any kind are needed in a predictive model, and is a search engine to discover specifically which interactions are required. The interaction detection system not only helps improve model performance (sometimes dramatically) but also assists in the discovery of valuable new segments and previously unrecognized patterns. Technical Articles by Jerome Friedman are also available for download:. Modeling Engine: TreeNet (Stochastic Gradient Boosting).

salford-systems.com

Salford Systems – Data Mining and Predictive Analytics Software

https://www.salford-systems.com/training/introduction-to-data-mining

Comprehensive Data Mining Training. Comprehensive Data Mining Training. If you would like to request an online or in-person training, please Click Here. To contact us with your request and let us know how many attendees are in your group. Salford Systems’ Webinars and Tutorials offer technical insight from our experts into an array of topics. We offer attendees the opportunity to utilize our software on the same datasets used in our presentations as well as explore their own data. Get In Touch With Us.

dansteinbergblog.com

Rules of Thumb When Working With Small Data Samples - Dan Steinberg's Blog

http://www.dansteinbergblog.com/dan-steinberg/rules-of-thumb-when-working-with-small-data-samples

Subscribe to this Blog. Rules of Thumb When Working With Small Data Samples. The original CART monograph discusses a study the authors performed working with 215 observations and 19 predictors, where 37 records were of class 1 and 178 of class 0. We think that this is example, with 37 examples in the smaller class is close the smallest sample size you can usefully work with CART. First, it is strongly advised that the minimum node size be lowered from the default of 10 to as low as 3. Of course repea...

dansteinbergblog.com

The Shape of the Trees in Gradient Boosting Machines - Dan Steinberg's Blog

http://www.dansteinbergblog.com/dan-steinberg/the-shape-of-the-trees-in-gradient-boosting-machines

Subscribe to this Blog. The Shape of the Trees in Gradient Boosting Machines. Above we start our tree by splitting the root node and of course all tree growing strategies start here. The question now is which node do we split next? The Friedman approach is to split both left and right child nodes but to keep only the better of the two. Thus the tree below is one that is possibly grown by TreeNet Gradient Boosting having only three terminal nodes. Breiman, L., Friedman, J. H., Olshen, R. A...Friedman, J&#...

salford-systems.com

Data Mining And Predictive Analytics Software - CART - Classification And Regression Trees

https://www.salford-systems.com/products/cart

CART Classification And Regression Trees. Classification and Regression Trees. Technically, CART is based on landmark mathematical theory introduced in 1984 by four world-renowned statisticians at Stanford University and the University of California at Berkeley. Salford Systems' implementation of CART is the only decision tree software embodying the original proprietary code. The CART creators continue to collaborate with Salford Systems to continually enhance CART with proprietary advances. Build a seri...

salford-systems.com

Data Mining And Predictive Analytics Software - Custom Programming

https://www.salford-systems.com/services/custom-programming

Rapid Response Data Mining. Salford Systems is an experienced software developer. In addition to our experience with a wide range of data mining and statistical modeling applications, we constantly pursue the latest research and development ideas. We have the experience and technical know-how to help you with those really challenging projects. The staff of analysts and programmers who developed our award-winning programs is available for your custom programming needs. Get In Touch With Us.

salford-systems.com

Salford Systems – Data Mining and Predictive Analytics Software

https://www.salford-systems.com/events/webinars-and-tutorials

Comprehensive Data Mining Training. Comprehensive Data Mining Training. More Events Coming Soon. September 14, 2016 and September 21, 2016. Modern Regression Modeling for Voter MicroTargeting, a 2 Part Series. Get In Touch With Us. 9685 Via Excelencia, Suite 208, San Diego, CA 92126. Info (at) salford-systems (dot) com. Rapid Response Data Mining.