Workflows

Wykorzystanie klasyfikatora binarnego do k... (1)

• Download

Wiele klasyfikatorów (np. SVM) pozwala na klasyfikacjÄ™ jedynie w przypadku gdy zmienna celu jest binarna. Poniższy przepÅ‚yw pokazuje, w jaki sposób operator Polynomial By Binomial Classificaiton pozwala agregować odpowiedzi klasyfikatorów binarnych dla przypadków, w których zmienna celu zawiera wiele różnych wartoÅ›ci.

Created: 2011-05-25 | Last updated: 2011-05-25

Uczenie z macierza kosztow (1)

• Download

Przeplyw pokazuje wykorzystanie operatora MetaCost, umozliwiajacego wprowadzenie macierzy kosztow do procesu uczenia klasyfikatora na przykladzie naiwnego klasyfikatora Bayesa.

Created: 2011-05-25 | Last updated: 2014-03-23

Plotting Training vs Testing Error (Loop +... (1)

• Download

This process increases the parameter C of a support vector machine and hence also the risk for overfitting. It uses an outer loop operator for increasing the parameter value and an inner log operator for storing the current number of applications together with the current errors on the training and the testing data set. At the end of the process, the log data can be plotted (for example with the plotter "Scatter Multiple" with "Count" on the x-axis and both "Training Error" and "Testing Error...

Created: 2011-08-15

Images (1)

• Download

No description

Created: 2011-09-22

Using R to add two columns (1)

• Download

This process shows a simple R script which adds two columns of a data set with R. Of course this is much simpler by using the operator "Generate Attributes" which is done in parallel, but maybe some of you find this short process helpful in order to get started with R.

Created: 2010-12-10 | Last updated: 2010-12-10

Loop Repository and Append Data (1)

• Download

This process flow loops through all exampleset '.ioo' files in a repository directory and appends their values. It can also be used as a template for batch processing on different repository entries, or for general data appending.

Created: 2010-12-10 | Last updated: 2010-12-10

Generate percentages from absolute values (1)

• Download

This process demonstrates how to calculate the percentages of absolute values of one data record. The process first creates an aggregation attribute SumAll and then loops over the absolute value attributes and creates a new relative attributes. Tags: relative, absolute, values, percentage, loop attributes, generate aggregation

Created: 2010-09-14 | Last updated: 2010-09-14

RCOMM Challenge 2: Broken Iris (Preparation) (1)

• Download

This workflow creates the input for the RCOMM 2010 Challenge 2. The solution and description are in workflow "RCOMM Challenge 2: Broken Iris"

Created: 2010-09-17

Automatical Disabling / Enabling of Operat... (1)

• Download

This meta process shows another possibility for automatically optimizing the process layout. The operator "OperatorEnabler" can be used to enable or disable one of its children. Together with one of the parameter optimization operators this can be used to check which operators should be used for optimal results. This is especially useful in order to determine which preprocessing operators should be used for a particular data set - learner combination or if you want to automatically test diffe...

Created: 2010-10-13

Recursive Feature Elimination with fully o... (1)

• Download

The Process shows how you can use the RecursiveFeatureElimination-Operator of the Feature Selection Extension ( https://sourceforge.net/projects/rm-featselext) to select relevant features from a highdimensional dataset.

Created: 2010-10-19 | Last updated: 2010-12-10