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<Paper uid="W03-0802">
  <Title>WHAT: An XSLT-based Infrastructure for the Integration of Natural Language Processing Components</Title>
  <Section position="5" start_page="2" end_page="2" type="concl">
    <SectionTitle>
4 Conclusion and Future Work
</SectionTitle>
    <Paragraph position="0"> We have presented an open, flexible and powerful infrastructure based on standard W3C technology for the online and offline combination of natural language processing components, with a focus on, but not limited to, hybrid deep and shallow architectures.</Paragraph>
    <Paragraph position="1"> The infrastructure is part of the Whiteboard architecture and is employed and will be continued in several successor projects. The infrastructure is well suited for rapid prototyping of hybrid NLP architectures as well as for developing NLP applications, and can be used to both access NLP XML markup from programming languages and to compute or transform it.</Paragraph>
    <Paragraph position="2"> Because WHAT is an open framework, it is worth considering XQuery as a future extension to WHAT.</Paragraph>
    <Paragraph position="3"> Which engine to ask, an XSLT or an XQuery processor, could be coded in each &lt;query&gt; element of the WHAT template library.</Paragraph>
    <Paragraph position="4"> WHAT can be used to translate to the ingenious Thistle tool (Calder 2000) for visualization of linguistic analyses and back from Thistle in editor mode, e.g. for manual, graphical correction of automatically annotated texts for training etc.</Paragraph>
    <Paragraph position="5"> A proximate approach is to combine WHAT with SDL (Krieger 2003) to declaratively specify WHAT-based NLP architectures (pipelines, loops, parallel transformation) that can be compiled to Java code.</Paragraph>
    <Paragraph position="6"> The proximity to W3C standards suggests using WHAT directly for transformation of NLP results into application-oriented (W3C) markup, or to use W3C markup (e.g. RDF) for semantic web integration in NLP, VoiceXML, etc.</Paragraph>
  </Section>
class="xml-element"></Paper>