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"[SOLVED] Silhouette index and k-means"

MarcosRLMarcosRL Member Posts: 53 Contributor II
edited June 2019 in Help
Hello friends of the community. a query
I want to perform validation of some clusters with k-means performed with the metric "Silhouette" for this I downloaded the. Jar of this page:

Then copy the. Jar to the folder lib / plugins
then connect the output of the operator "k-means clustering," the operator "Silhouette" but it seems to me are missing something, because I get the following error
"Process failed: No data was delivered at port Performance.similarity (disconnected)."
accompanying the process xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.2.008">
 <context>
   <input/>
   <output/>
   <macros/>
 </context>
 <operator activated="true" class="process" compatibility="5.2.008" expanded="true" name="Process">
   <process expanded="true" height="386" width="681">
     <operator activated="true" class="text:process_document_from_file" compatibility="5.2.004" expanded="true" height="76" name="Process Documents from Files" width="90" x="112" y="75">
       <list key="text_directories">
         <parameter key="doc1" value="C:\Users\marcos\Desktop\Datos de prueba para clustering\Caso de prueba 2\En español\doc1"/>
         <parameter key="doc2" value="C:\Users\marcos\Desktop\Datos de prueba para clustering\Caso de prueba 2\En español\doc2"/>
         <parameter key="doc3" value="C:\Users\marcos\Desktop\Datos de prueba para clustering\Caso de prueba 2\En español\doc3"/>
       </list>
       <process expanded="true" height="415" width="758">
         <operator activated="true" class="text:transform_cases" compatibility="5.2.004" expanded="true" height="60" name="Transform Cases" width="90" x="45" y="30"/>
         <operator activated="true" class="text:tokenize" compatibility="5.2.004" expanded="true" height="60" name="Tokenize" width="90" x="45" y="120"/>
         <operator activated="true" class="text:filter_stopwords_dictionary" compatibility="5.2.004" expanded="true" height="76" name="Filter stopwords_pronombres_preposiciones" width="90" x="45" y="210">
           <parameter key="file" value="C:\Users\marcos\Desktop\stopwords\stopwords_pronombres_preposiciones.txt"/>
         </operator>
         <operator activated="true" class="text:filter_stopwords_dictionary" compatibility="5.2.004" expanded="true" height="76" name="Filter stopwords_caratula" width="90" x="45" y="300">
           <parameter key="file" value="C:\Users\marcos\Desktop\stopwords\stopwords_caratula.txt"/>
         </operator>
         <operator activated="true" class="text:filter_stopwords_english" compatibility="5.2.004" expanded="true" height="60" name="Filter Stopwords (English)" width="90" x="179" y="30"/>
         <operator activated="true" class="text:filter_by_length" compatibility="5.2.004" expanded="true" height="60" name="Filter Tokens (by Length)" width="90" x="179" y="120">
           <parameter key="min_chars" value="3"/>
         </operator>
         <connect from_port="document" to_op="Transform Cases" to_port="document"/>
         <connect from_op="Transform Cases" from_port="document" to_op="Tokenize" to_port="document"/>
         <connect from_op="Tokenize" from_port="document" to_op="Filter stopwords_pronombres_preposiciones" to_port="document"/>
         <connect from_op="Filter stopwords_pronombres_preposiciones" from_port="document" to_op="Filter stopwords_caratula" to_port="document"/>
         <connect from_op="Filter stopwords_caratula" from_port="document" to_op="Filter Stopwords (English)" to_port="document"/>
         <connect from_op="Filter Stopwords (English)" from_port="document" to_op="Filter Tokens (by Length)" to_port="document"/>
         <connect from_op="Filter Tokens (by Length)" from_port="document" to_port="document 1"/>
         <portSpacing port="source_document" spacing="0"/>
         <portSpacing port="sink_document 1" spacing="0"/>
         <portSpacing port="sink_document 2" spacing="0"/>
       </process>
     </operator>
     <operator activated="true" class="k_means" compatibility="5.2.008" expanded="true" height="76" name="Clustering" width="90" x="320" y="132">
       <parameter key="add_as_label" value="true"/>
       <parameter key="k" value="3"/>
       <parameter key="measure_types" value="NumericalMeasures"/>
       <parameter key="numerical_measure" value="CosineSimilarity"/>
     </operator>
     <operator activated="true" class="rmx_cpplugin:cluster_silhouette" compatibility="0.2.000" expanded="true" height="112" name="Performance" width="90" x="541" y="206"/>
     <connect from_op="Process Documents from Files" from_port="example set" to_op="Clustering" to_port="example set"/>
     <connect from_op="Clustering" from_port="cluster model" to_op="Performance" to_port="cluster model"/>
     <connect from_op="Clustering" from_port="clustered set" to_op="Performance" to_port="example set"/>
     <connect from_op="Performance" from_port="example set" to_port="result 1"/>
     <connect from_op="Performance" from_port="performance vector" 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>

could someone tell me what is wrong?
thanks
regards
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Answers

  • Options
    MarcosRLMarcosRL Member Posts: 53 Contributor II
    any ideas?  :-\
    regards
  • Options
    Marco_BoeckMarco_Boeck Administrator, Moderator, Employee, Member, University Professor Posts: 1,996 RM Engineering
    Hi,

    I have no idea what extension you were using because your original post is missing any links, however the error usually indicates that an input port of an operator is not connected (and therefore cannot recieve data).

    Regards,
    Marco
  • Options
    MarcosRLMarcosRL Member Posts: 53 Contributor II
    Hi
    The plugin is called "CPPlugin-0.2"
    I add this plugin in \Rapid-I\RapidMiner5\lib  and gave the operator Silhouette index
  • Options
    Marco_BoeckMarco_Boeck Administrator, Moderator, Employee, Member, University Professor Posts: 1,996 RM Engineering
    Hi,

    I tested your process with the plugin version 0.3 (not the 0.2 you were using) and RapidMiner 5.3.000 and I used some data from the Samples repository instead of your Process Documents operator - and it worked just fine. Maybe try the latest version of the plugin and make sure your Process Documents operator returns something useful (you can use a breakpoint on it to see its output).

    Regards,
    Marco
  • Options
    MarcosRLMarcosRL Member Posts: 53 Contributor II
    can pass me the link to download the version 3 plugin?
    regards
  • Options
    Marco_BoeckMarco_Boeck Administrator, Moderator, Employee, Member, University Professor Posts: 1,996 RM Engineering
    Hi,

    please note that this is a 3rd party extension. I just googled the name of the extension you wrote in your previous post and the first link was a hit.

    Regards,
    Marco
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