Support Vector Machine

FlixportFlixport Member Posts: 33 Contributor II
edited June 2019 in Help
Hey guys,
the Random Forest works so far, I'm currently also trying the SVM (Support Vector Machine) as a countercheck. I have filled in a special attribute as Category here, but when I insert the operator Set Role, the SVM operator tells me that a special attribute is missing or insufficient capability. Of course I applied Nominal to Numerical, this requirement must be met. But as I just said, I can't get rid of the error message. As a help the SVM operator offers the "Set Role" operator, but now the svm operator shows me the that the capability is not enough :|
Thanks for the answers


Best Answers


  • varunm1varunm1 Moderator, Member Posts: 1,207 Unicorn
    edited April 2019
    Hi @Flixport

    Is your label binary? If you are trying to predict more than 2 classes then a regular SVM does not work. You can choose Support Vector Machine (LibSVM) for multiclass classification. You can see the number of classes in of your dataset by double-clicking the dataset and going to statistics.  


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  • FlixportFlixport Member Posts: 33 Contributor II
    no its polynominal


  • FlixportFlixport Member Posts: 33 Contributor II
    I becam as resolution the operator "classification by regression", it runs now
    but the Operator runs in the background without closing^^
  • FlixportFlixport Member Posts: 33 Contributor II

    can u take a look at the screen please. i have 2 classes and the give mir this Information, that i can use it for 2 classes, but i have in my input data 2 classes ^^

  • varunm1varunm1 Moderator, Member Posts: 1,207 Unicorn
    Hi @Flixport

    Can you post the process and dataset? If you cannot give the dataset, you can send in a message?


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  • varunm1varunm1 Moderator, Member Posts: 1,207 Unicorn
    edited April 2019
    I am working on this process of @Flixport. In the process there are 4 classes of data(multi-class), we are filtering for samples related to two classes only but it's still giving the other two classes with zero samples. Not sure if this is some bug.

    Process XML below:
    <?xml version="1.0" encoding="UTF-8"?><process version="9.2.001">
    <operator activated="true" class="process" compatibility="9.2.001" expanded="true" name="Process">
    <parameter key="logverbosity" value="init"/>
    <parameter key="random_seed" value="2001"/>
    <parameter key="send_mail" value="never"/>
    <parameter key="notification_email" value=""/>
    <parameter key="process_duration_for_mail" value="30"/>
    <parameter key="encoding" value="UTF-8"/>
    <process expanded="true">
    <operator activated="false" class="retrieve" compatibility="9.2.001" expanded="true" height="68" name="Retrieve data_out_select_by_pca_weights" width="90" x="313" y="34">
    <parameter key="repository_entry" value="data/data_out_select_by_pca_weights"/>
    <operator activated="true" class="retrieve" compatibility="9.2.001" expanded="true" height="68" name="Retrieve data_out_select_by_chisq_weights" width="90" x="45" y="391">
    <parameter key="repository_entry" value="../OneDrive_1_4-9-2019/data_out_select_by_chisq_weights"/>
    <operator activated="true" class="retrieve" compatibility="9.2.001" expanded="true" height="68" name="Retrieve data_out_pca" width="90" x="45" y="136">
    <parameter key="repository_entry" value="../OneDrive_1_4-9-2019/data_out_pca"/>
    <operator activated="true" class="concurrency:join" compatibility="9.2.001" expanded="true" height="82" name="Join (2)" width="90" x="179" y="289">
    <parameter key="remove_double_attributes" value="true"/>
    <parameter key="join_type" value="inner"/>
    <parameter key="use_id_attribute_as_key" value="true"/>
    <list key="key_attributes"/>
    <parameter key="keep_both_join_attributes" value="false"/>
    <operator activated="true" class="multiply" compatibility="9.2.001" expanded="true" height="82" name="Multiply" width="90" x="313" y="289"/>
    <operator activated="true" class="filter_examples" compatibility="9.2.001" expanded="true" height="103" name="Filter Examples" width="90" x="514" y="289">
    <parameter key="parameter_expression" value=""/>
    <parameter key="condition_class" value="custom_filters"/>
    <parameter key="invert_filter" value="false"/>
    <list key="filters_list">
    <parameter key="filters_entry_key" value=""/>
    <parameter key="filters_entry_key" value="Category.equals.economic"/>
    <parameter key="filters_logic_and" value="false"/>
    <parameter key="filters_check_metadata" value="true"/>
    <operator activated="true" class="set_role" compatibility="9.2.001" expanded="true" height="82" name="Set Role" width="90" x="715" y="289">
    <parameter key="attribute_name" value="Category"/>
    <parameter key="target_role" value="label"/>
    <list key="set_additional_roles"/>
    <operator activated="true" class="split_data" compatibility="9.2.001" expanded="true" height="103" name="Split Data" width="90" x="849" y="289">
    <enumeration key="partitions">
    <parameter key="ratio" value="0.8"/>
    <parameter key="ratio" value="0.2"/>
    <parameter key="sampling_type" value="shuffled sampling"/>
    <parameter key="use_local_random_seed" value="false"/>
    <parameter key="local_random_seed" value="1992"/>
    <operator activated="true" class="x_validation" compatibility="5.1.002" expanded="true" height="124" name="Validation" width="90" x="1050" y="85">
    <parameter key="create_complete_model" value="false"/>
    <parameter key="average_performances_only" value="true"/>
    <parameter key="leave_one_out" value="false"/>
    <parameter key="number_of_validations" value="5"/>
    <parameter key="sampling_type" value="2"/>
    <parameter key="use_local_random_seed" value="false"/>
    <parameter key="local_random_seed" value="1992"/>
    <process expanded="true">
    <operator activated="true" class="support_vector_machine" compatibility="9.2.001" expanded="true" height="124" name="SVM" width="90" x="313" y="34">
    <parameter key="kernel_type" value="dot"/>
    <parameter key="kernel_gamma" value="1.0"/>
    <parameter key="kernel_sigma1" value="1.0"/>
    <parameter key="kernel_sigma2" value="0.0"/>
    <parameter key="kernel_sigma3" value="2.0"/>
    <parameter key="kernel_shift" value="1.0"/>
    <parameter key="kernel_degree" value="2.0"/>
    <parameter key="kernel_a" value="1.0"/>
    <parameter key="kernel_b" value="0.0"/>
    <parameter key="kernel_cache" value="200"/>
    <parameter key="C" value="0.0"/>
    <parameter key="convergence_epsilon" value="0.001"/>
    <parameter key="max_iterations" value="100000"/>
    <parameter key="scale" value="true"/>
    <parameter key="calculate_weights" value="true"/>
    <parameter key="return_optimization_performance" value="true"/>
    <parameter key="L_pos" value="1.0"/>
    <parameter key="L_neg" value="1.0"/>
    <parameter key="epsilon" value="0.0"/>
    <parameter key="epsilon_plus" value="0.0"/>
    <parameter key="epsilon_minus" value="0.0"/>
    <parameter key="balance_cost" value="false"/>
    <parameter key="quadratic_loss_pos" value="false"/>
    <parameter key="quadratic_loss_neg" value="false"/>
    <parameter key="estimate_performance" value="false"/>
    <connect from_port="training" to_op="SVM" to_port="training set"/>
    <connect from_op="SVM" from_port="model" to_port="model"/>
    <portSpacing port="source_training" spacing="0"/>
    <portSpacing port="sink_model" spacing="0"/>
    <portSpacing port="sink_through 1" spacing="0"/>
    <process expanded="true">
    <operator activated="true" class="apply_model" compatibility="7.1.001" expanded="true" height="82" name="Apply Model" width="90" x="112" y="34">
    <list key="application_parameters"/>
    <parameter key="create_view" value="false"/>
    <operator activated="true" class="performance" compatibility="9.2.001" expanded="true" height="82" name="Performance" width="90" x="246" y="136">
    <parameter key="use_example_weights" value="true"/>
    <connect from_port="model" to_op="Apply Model" to_port="model"/>
    <connect from_port="test set" to_op="Apply Model" to_port="unlabelled data"/>
    <connect from_op="Apply Model" from_port="labelled data" to_op="Performance" to_port="labelled data"/>
    <connect from_op="Performance" from_port="performance" to_port="averagable 1"/>
    <portSpacing port="source_model" spacing="0"/>
    <portSpacing port="source_test set" spacing="0"/>
    <portSpacing port="source_through 1" spacing="0"/>
    <portSpacing port="sink_averagable 1" spacing="0"/>
    <portSpacing port="sink_averagable 2" spacing="0"/>
    <description align="center" color="transparent" colored="false" width="126">A cross-validation evaluating a decision tree model.</description>
    <operator activated="true" class="apply_model" compatibility="9.2.001" expanded="true" height="82" name="Apply Model (2)" width="90" x="1184" y="289">
    <list key="application_parameters"/>
    <parameter key="create_view" value="false"/>
    <operator activated="true" class="performance_classification" compatibility="9.2.001" expanded="true" height="82" name="Performance (2)" width="90" x="1318" y="391">
    <parameter key="main_criterion" value="first"/>
    <parameter key="accuracy" value="true"/>
    <parameter key="classification_error" value="false"/>
    <parameter key="kappa" value="false"/>
    <parameter key="weighted_mean_recall" value="false"/>
    <parameter key="weighted_mean_precision" value="false"/>
    <parameter key="spearman_rho" value="false"/>
    <parameter key="kendall_tau" value="false"/>
    <parameter key="absolute_error" value="false"/>
    <parameter key="relative_error" value="false"/>
    <parameter key="relative_error_lenient" value="false"/>
    <parameter key="relative_error_strict" value="false"/>
    <parameter key="normalized_absolute_error" value="false"/>
    <parameter key="root_mean_squared_error" value="false"/>
    <parameter key="root_relative_squared_error" value="false"/>
    <parameter key="squared_error" value="false"/>
    <parameter key="correlation" value="false"/>
    <parameter key="squared_correlation" value="false"/>
    <parameter key="cross-entropy" value="false"/>
    <parameter key="margin" value="false"/>
    <parameter key="soft_margin_loss" value="false"/>
    <parameter key="logistic_loss" value="false"/>
    <parameter key="skip_undefined_labels" value="true"/>
    <parameter key="use_example_weights" value="true"/>
    <list key="class_weights"/>
    <connect from_op="Retrieve data_out_select_by_chisq_weights" from_port="output" to_op="Join (2)" to_port="right"/>
    <connect from_op="Retrieve data_out_pca" from_port="output" to_op="Join (2)" to_port="left"/>
    <connect from_op="Join (2)" from_port="join" to_op="Multiply" to_port="input"/>
    <connect from_op="Multiply" from_port="output 1" to_op="Filter Examples" to_port="example set input"/>
    <connect from_op="Filter Examples" from_port="example set output" to_op="Set Role" to_port="example set input"/>
    <connect from_op="Set Role" from_port="example set output" to_op="Split Data" to_port="example set"/>
    <connect from_op="Split Data" from_port="partition 1" to_op="Validation" to_port="training"/>
    <connect from_op="Split Data" from_port="partition 2" to_op="Apply Model (2)" to_port="unlabelled data"/>
    <connect from_op="Validation" from_port="model" to_op="Apply Model (2)" to_port="model"/>
    <connect from_op="Apply Model (2)" from_port="labelled data" to_op="Performance (2)" to_port="labelled data"/>
    <connect from_op="Performance (2)" from_port="performance" to_port="result 1"/>
    <portSpacing port="source_input 1" spacing="0"/>
    <portSpacing port="sink_result 1" spacing="0"/>
    <portSpacing port="sink_result 2" spacing="0"/>
    <description align="left" color="yellow" colored="false" height="139" resized="true" width="565" x="11" y="618">MODEL&lt;br/&gt;&lt;br/&gt;Beispiel Anwendung:&lt;br&gt;b. In diesem Beispiel wurde Feld &amp;quot;Topics&amp;quot; als Zielvariable benutzt. Baue ein Model um die restliche Datens&amp;#228;tze zu klassifizieren. Wie sieht die Pr&amp;#228;zision aus?</description>

    After filtering with Economic and Financial samples, it is still taking agriculture and political but with zero samples. This is the reason regular SVM is throwing an error regarding multiple classes.

    Metadata can be found in below link: You can just copy this folder to RM repository.


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  • FlixportFlixport Member Posts: 33 Contributor II
    Hey all,

    ty for the answers. It works but i become a decteded problem in the SVM Operator (see screen)
    is that important or can i ignore it?

  • varunm1varunm1 Moderator, Member Posts: 1,207 Unicorn
    @Flixport you can ignore that warning.

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