Logistic Loss doesn't work
Hi!
I want to evaluate the prediction probabilities of a classifier via logistic loss.
My workflow is <Classifier> --> Apply Model --> Performance (Classification).
I choose logistic loss as main criterion, but whatever I do, I always get the following output:
logistic_loss: ∞
What am I doing wrong?
I want to evaluate the prediction probabilities of a classifier via logistic loss.
My workflow is <Classifier> --> Apply Model --> Performance (Classification).
I choose logistic loss as main criterion, but whatever I do, I always get the following output:
logistic_loss: ∞
What am I doing wrong?
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.2.003">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="5.2.003" expanded="true" name="Process">
<parameter key="parallelize_main_process" value="true"/>
<process expanded="true" height="663" width="705">
<operator activated="true" class="retrieve" compatibility="5.2.003" expanded="true" height="60" name="Retrieve" width="90" x="45" y="30">
<parameter key="repository_entry" value="BioResponse_Train"/>
</operator>
<operator activated="true" class="set_role" compatibility="5.2.003" expanded="true" height="76" name="Set Role" width="90" x="180" y="30">
<parameter key="name" value="Activity"/>
<parameter key="target_role" value="label"/>
<list key="set_additional_roles"/>
</operator>
<operator activated="true" class="support_vector_machine_libsvm" compatibility="5.2.003" expanded="true" height="76" name="SVM" width="90" x="315" y="30">
<list key="class_weights"/>
<parameter key="calculate_confidences" value="true"/>
</operator>
<operator activated="true" class="apply_model" compatibility="5.2.003" expanded="true" height="76" name="Apply Model" width="90" x="450" y="30">
<list key="application_parameters"/>
</operator>
<operator activated="true" class="performance_classification" compatibility="5.2.003" expanded="true" height="76" name="Performance" width="90" x="585" y="30">
<parameter key="main_criterion" value="logistic_loss"/>
<parameter key="logistic_loss" value="true"/>
<list key="class_weights"/>
</operator>
<connect from_op="Retrieve" from_port="output" to_op="Set Role" to_port="example set input"/>
<connect from_op="Set Role" from_port="example set output" to_op="SVM" to_port="training set"/>
<connect from_op="SVM" from_port="model" to_op="Apply Model" to_port="model"/>
<connect from_op="SVM" from_port="exampleSet" 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="result 1"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_result 1" spacing="0"/>
<portSpacing port="sink_result 2" spacing="0"/>
</process>
</operator>
</process>
please post your process setup (like it is described here http://rapid-i.com/rapidforum/index.php/topic,4654.0.html), so that we can see what you are doing right now and give you hints on how to improve it.
Best,
Nils