How to extract attributes from the model?

jiri

Hi,
Is is possible to extract the single attribute determined by ONER learner model? 

Something like a "ModelParameters2ExampleSet"?

Thanks,
Jiri

jiri

I found out a solution. Maybe little bit complicated but works..and it is usable also for other models. There is an example.

Regards
                  jiiri



<operator name="Root" class="Process" expanded="yes">
    <operator name="ArffExampleSource" class="ArffExampleSource">
        <parameter key="data_file" value="....example"/>
        <parameter key="label_attribute" value="class"/>
    </operator>
    <operator name="IOStorer" class="IOStorer">
        <parameter key="name" value="MASTER"/>
        <parameter key="io_object" value="ExampleSet"/>
        <parameter key="remove_from_process" value="false"/>
    </operator>
    <operator name="SlidingWindowValidation" class="SlidingWindowValidation" expanded="yes">
        <parameter key="training_window_width" value="5"/>
        <parameter key="test_window_width" value="1"/>
        <parameter key="average_performances_only" value="false"/>
        <operator name="OneR" class="OneR">
        </operator>
        <operator name="OperatorChain" class="OperatorChain" expanded="yes">
            <operator name="ModelApplier" class="ModelApplier">
                <parameter key="keep_model" value="true"/>
                <list key="application_parameters">
                </list>
            </operator>
            <operator name="Performance (2)" class="Performance">
                <parameter key="keep_example_set" value="true"/>
                <parameter key="use_example_weights" value="false"/>
            </operator>
            <operator name="ResultWriter" class="ResultWriter">
                <parameter key="result_file" value="name"/>
            </operator>
            <operator name="TextObjectLoader" class="TextObjectLoader">
                <parameter key="file" value="name"/>
            </operator>
            <operator name="DeleteResultFile" class="CommandLineOperator">
                <parameter key="command" value="c:\windows\system32\cmd.exe  /c del name"/>
                <parameter key="log_stdout" value="false"/>
                <parameter key="log_stderr" value="false"/>
            </operator>
            <operator name="TextExtractor" class="TextExtractor">
                <parameter key="extraction_regex" value="sep\d "/>
            </operator>
            <operator name="TextObject2ExampleSet" class="TextObject2ExampleSet">
                <parameter key="text_attribute" value="1"/>
                <parameter key="label_attribute" value="0"/>
            </operator>
            <operator name="Data2Log" class="Data2Log">
                <parameter key="attribute_name" value="1"/>
                <parameter key="example_index" value="1"/>
            </operator>
            <operator name="ProcessLog" class="ProcessLog">
                <list key="log">
                  <parameter key="attr" value="operator.Data2Log.value.data_value"/>
                  <parameter key="count" value="operator.OperatorChain.value.applycount"/>
                </list>
            </operator>
            <operator name="ProcessLog2ExampleSet" class="ProcessLog2ExampleSet">
                <parameter key="log_name" value="ProcessLog"/>
            </operator>
            <operator name="IOStorer (2)" class="IOStorer">
                <parameter key="name" value="ATTR"/>
                <parameter key="io_object" value="ExampleSet"/>
            </operator>
        </operator>
    </operator>
    <operator name="IORetriever (2)" class="IORetriever">
        <parameter key="name" value="ATTR"/>
        <parameter key="io_object" value="ExampleSet"/>
    </operator>
    <operator name="IdTagging" class="IdTagging">
    </operator>
    <operator name="IORetriever" class="IORetriever">
        <parameter key="name" value="MASTER"/>
        <parameter key="io_object" value="ExampleSet"/>
        <parameter key="remove_from_store" value="false"/>
    </operator>
    <operator name="IdTagging (2)" class="IdTagging">
    </operator>
    <operator name="ExampleSetJoin" class="ExampleSetJoin">
        <parameter key="join_type" value="left"/>
    </operator>
</operator>

land

Hi,
that's an interesting solution. And I get the impression I heard this requirement a few time in the last week, so it's pretty useful until we have added a special function for this.
Another solution would be to incorporate the Scripting operator, but this would need some programming effort and a model giving access to it's values.

Greetings,
  Sebastian