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<Paper uid="C88-2085">
  <Title>ERROR DIAGNOSING AND SELECTION IN A, TRAINING SYSTEM FOR SECOND LANGUAGE LEARNING Wolfgang Menzel Zentralinstitut fur Sprachwissensehaft</Title>
  <Section position="6" start_page="418" end_page="418" type="concl">
    <SectionTitle>
References
</SectionTitle>
    <Paragraph position="0"> (2) integration of the procedure as a specialized subroutine into an error sensitive parser (whether it be surface oriented or deep modelled) to replace currently used heuristics for consistency cheek.</Paragraph>
    <Paragraph position="1"> FolI.owing the first opening a prototype system has bean realized which integrates the diagnosing procedure into a learning environment. Besides the guiding advice of the sen-tential context additional measures have been taken to avoid the student feeling uneasy about the limitations of the fixed structural input pattern. Using a menu-ba~ed input mo~e it is possible not only to inspect the dictionary at run time but also to select appropriate word forms from it. Thu~ a quick and convenient interaction facility is offered and the student is encouraged to construct his solution in a toy kit manner from the available stock of word forms.</Paragraph>
    <Paragraph position="2"> To valuate the diagnostic capabilities of the approach a quality measurement has been carried out using the constraint network of the second exercise sample of section II (formation of a local PP). The valuation has been based on the observation that for practical purposes the ability to precisely io. care single word form errors is of most importance. An exhaustive analysis of all instances of arti.ficially implanted single word form substitutions (including rather &amp;quot;exotic&amp;quot; ones as well) yielded the following results:</Paragraph>
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