xPath Queries in RapidMiner

Hey all,

in the meantime i spent plenty of hours with Rapidminer trying to get a clean text out of a html document using xPath.
I built some xPath queries which worked fine with Google Docs (Spreadsheets), but it seems no matter what i do they won´t work with Rapidminer properly

The query "//div[@id='review']/div/div/div[2]/div[2]" (@website: "http://www.holidaycheck.de/hotelbewertung-ferienbauernhof+arnoldgut+familie+mayrhofer+unser+erster+super+toller+bauernhofurlaub-ch_hb-id_7215281.html") in Google Docs returns exactly the text i want to have. When i try to send the query in Rapidminer, the attribute generated by the "Extract Information" operator contains nothing.

I´ve tested different queries which all worked in Google Docs, but only some of them are working in RM.
The querie "//h:div[@id='reviewTypeLong']" works in RM and the returned text contains all the information i need. The problem here is  that i haven´t found any way to remove the html tags yet. I´ve tried the "Cut Documents" and "Remove Document Parts" operators with the RegEx  <[^>]*>  but it doesn´t to what it should. Further i don´t know how to use the  "Extract Content" operator on attributes, so i could remove the html tags after i extracted the useful parts of the website.

I´m really getting crazy with this, and before I spent several hours more, I hope that some experienced "Rapid-Miners" could help me with this.

Lots of thanks in advance for any help!!!


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My Rapidminer Process:

<?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="550" width="882">
      <operator activated="true" class="web:get_webpage" compatibility="5.2.003" expanded="true" height="60" name="Get Page" width="90" x="179" y="75">
        <parameter key="url" value="http://www.holidaycheck.de/hotelbewertung-ferienbauernhof+arnoldgut+familie+mayrhofer+unser+erster+super+toller+bauernhofurlaub-ch_hb-id_7215281.html"/>
        <parameter key="random_user_agent" value="true"/>
        <parameter key="accept_cookies" value="all"/>
        <list key="query_parameters"/>
        <list key="request_properties"/>
      </operator>
      <operator activated="true" class="text:process_documents" compatibility="5.2.004" expanded="true" height="94" name="Process Documents" width="90" x="380" y="30">
        <process expanded="true" height="607" width="935">
          <operator activated="true" class="text:extract_information" compatibility="5.2.004" expanded="true" height="60" name="Extract Information (2)" width="90" x="112" y="30">
            <parameter key="query_type" value="XPath"/>
            <list key="string_machting_queries"/>
            <list key="regular_expression_queries"/>
            <list key="regular_region_queries"/>
            <list key="xpath_queries">
              <parameter key="possibility1" value="//h:div[@id='reviewTypeLong']"/>
              <parameter key="possibility2" value="//h:div[@id='review']/div/div/div[2]/div[2]"/>
              <parameter key="possibility1TEXT" value="//h:div[@id='reviewTypeLong']//text()"/>
              <parameter key="possibility2TEXT" value="//h:div[@id='review']/div/div/div[2]/div[2]//text()"/>
            </list>
            <list key="namespaces"/>
            <list key="index_queries"/>
          </operator>
          <operator activated="false" class="text:remove_document_parts" compatibility="5.2.004" expanded="true" height="60" name="Remove Document Parts" width="90" x="514" y="120">
            <parameter key="deletion_regex" value=" &lt;[^&gt;]*&gt;"/>
          </operator>
          <operator activated="false" class="text:cut_document" compatibility="5.2.004" expanded="true" height="60" name="Cut Document" width="90" x="313" y="120">
            <parameter key="query_type" value="Regular Expression"/>
            <list key="string_machting_queries"/>
            <list key="regular_expression_queries">
              <parameter key="text" value=" &lt;[^&gt;]*&gt;"/>
            </list>
            <list key="regular_region_queries"/>
            <list key="xpath_queries"/>
            <list key="namespaces"/>
            <list key="index_queries"/>
            <process expanded="true">
              <portSpacing port="source_segment" spacing="0"/>
              <portSpacing port="sink_document 1" spacing="0"/>
            </process>
          </operator>
          <connect from_port="document" to_op="Extract Information (2)" to_port="document"/>
          <connect from_op="Extract Information (2)" 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>
      <connect from_op="Get Page" from_port="output" to_op="Process Documents" to_port="documents 1"/>
      <connect from_op="Process Documents" 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>