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Set a the param (k) for the k-NN operator

jems_blintjems_blint Member Posts: 1 Contributor I
edited November 2018 in Help

Hi, 

I have a k-NN, and i want to set the parameter k dynamically how can i achieve that ? 

 

Thank you !

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Answers

  • Thomas_OttThomas_Ott RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,760   Unicorn

    Use the Optimize Parameters operator

  • Telcontar120Telcontar120 Moderator, RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,625   Unicorn

    You could use Loop Parameters, see the attached sample process.

     

    <?xml version="1.0" encoding="UTF-8"?><process version="7.5.003">
    <context>
    <input/>
    <output/>
    <macros/>
    </context>
    <operator activated="true" class="process" compatibility="7.5.003" expanded="true" name="Process">
    <process expanded="true">
    <operator activated="true" class="retrieve" compatibility="7.5.003" expanded="true" height="68" name="Retrieve Sonar" width="90" x="45" y="85">
    <parameter key="repository_entry" value="//Samples/data/Sonar"/>
    </operator>
    <operator activated="true" class="loop_parameters" compatibility="7.5.003" expanded="true" height="103" name="Loop Parameters" width="90" x="246" y="85">
    <list key="parameters">
    <parameter key="Clustering.k" value="[2.0;10;8;linear]"/>
    </list>
    <process expanded="true">
    <operator activated="true" class="k_means" compatibility="7.5.003" expanded="true" height="82" name="Clustering" width="90" x="313" y="85">
    <parameter key="k" value="10"/>
    </operator>
    <connect from_port="input 1" to_op="Clustering" to_port="example set"/>
    <connect from_op="Clustering" from_port="cluster model" to_port="result 1"/>
    <connect from_op="Clustering" from_port="clustered set" to_port="result 2"/>
    <portSpacing port="source_input 1" spacing="0"/>
    <portSpacing port="source_input 2" spacing="0"/>
    <portSpacing port="sink_performance" spacing="0"/>
    <portSpacing port="sink_result 1" spacing="0"/>
    <portSpacing port="sink_result 2" spacing="0"/>
    <portSpacing port="sink_result 3" spacing="0"/>
    </process>
    </operator>
    <connect from_op="Retrieve Sonar" from_port="output" to_op="Loop Parameters" to_port="input 1"/>
    <connect from_op="Loop Parameters" from_port="result 1" to_port="result 1"/>
    <connect from_op="Loop Parameters" from_port="result 2" to_port="result 2"/>
    <portSpacing port="source_input 1" spacing="0"/>
    <portSpacing port="sink_result 1" spacing="0"/>
    <portSpacing port="sink_result 2" spacing="0"/>
    <portSpacing port="sink_result 3" spacing="0"/>
    </process>
    </operator>
    </process>

     

    Brian T.
    Lindon Ventures 
    Data Science Consulting from Certified RapidMiner Experts
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