"Webmining - Devide a Token into separate Values?"

T-UnitT-Unit Member Posts: 12 Contributor II
edited June 6 in Help
Hello,

I'm trying to create a little webmining process. I want to extract a numeric value (bid price and ask price of a an financial asset) from a website. My process looks like this:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.015">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.3.015" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="web:get_webpage" compatibility="5.3.001" expanded="true" height="60" name="Get Page" width="90" x="45" y="30">
        <parameter key="url" value="http://zertifikat.finanzen.net/optionsscheine/Auf-uu6dzh/UU6DZH"/>
        <parameter key="random_user_agent" value="true"/>
        <parameter key="follow_redirects" value="false"/>
        <list key="query_parameters"/>
        <list key="request_properties"/>
      </operator>
      <operator activated="true" class="web:extract_html_text_content" compatibility="5.3.001" expanded="true" height="60" name="Extract Content (2)" width="90" x="179" y="30">
        <parameter key="minimum_text_block_length" value="1"/>
      </operator>
      <operator activated="true" class="text:filter_tokens_by_content" compatibility="5.3.002" expanded="true" height="60" name="Filter Tokens (by Content)" width="90" x="313" y="30">
        <parameter key="string" value="stk"/>
      </operator>
      <operator activated="true" class="text:tokenize" compatibility="5.3.002" expanded="true" height="60" name="Tokenize" width="90" x="447" y="30">
        <parameter key="mode" value="specify characters"/>
        <parameter key="characters" value=" "/>
      </operator>
      <operator activated="true" class="text:filter_tokens_by_content" compatibility="5.3.002" expanded="true" height="60" name="Filter Tokens (2)" width="90" x="581" y="30">
        <parameter key="string" value="stk"/>
        <parameter key="invert condition" value="true"/>
      </operator>
      <operator activated="true" class="text:documents_to_data" compatibility="5.3.002" expanded="true" height="76" name="Documents to Data" width="90" x="715" y="30">
        <parameter key="text_attribute" value="Kurse"/>
      </operator>
      <connect from_op="Get Page" from_port="output" to_op="Extract Content (2)" to_port="document"/>
      <connect from_op="Extract Content (2)" from_port="document" to_op="Filter Tokens (by Content)" to_port="document"/>
      <connect from_op="Filter Tokens (by Content)" from_port="document" to_op="Tokenize" to_port="document"/>
      <connect from_op="Tokenize" from_port="document" to_op="Filter Tokens (2)" to_port="document"/>
      <connect from_op="Filter Tokens (2)" from_port="document" to_op="Documents to Data" to_port="documents 1"/>
      <connect from_op="Documents to Data" from_port="example set" 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>
My problem is, that the bid price and the ask price are written to the same attribute (in this case: "Kurs") but i need them as seperated attributes (e.g.: "bid" and "ask"). I thought tokenizing would help but i dont know if it's possible to address a token or something like that (e.g.: after tokenizing save token 1 as "bid" and token 2 as "ask"). I know there is an operator called "Extract Token Number", so this was my first idea to solve my problem.

Maybe someone else has a better idea or a smart solution how to solve this problem?

Regards,
Thomas
Tagged:
rajbanokhan
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