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The entry point
to the MuchMore prototype system
is a query construction tool that provides a user interface
for refining queries that are automatically generated from
query documents (i.e.: electronic patient records). For
this purpose, the following information is displayed: the
text of the query document; a list of automatically extracted
medical concepts along with their frequency and the semantic
relations between these concepts; a browsing option that
helps the user to navigate through the concept space (MeSH)
and include more general or more specific concepts in the
constructed query. The concept list consists of preferred
names of the matched terminology, as found in the controlled
vocabulary. Through a double-click on concepts and/or relations
all instances in the query are highlighted. Thereby the
user can make an informed choice on the relevance of the
automatically extracted concepts and relations. For query
expansion the tool provides a browse-able contextual view
of a concept according to the MeSH hierarchy. By selecting
any concept in the generated list an overview is given of
ancestor, sibling and child concepts. By double-clicking
any of these, the query can be extended with these concepts.
Finally, a text area is provided to append new terms to
the query, which the user considers relevant but were neither
automatically extracted nor available through MeSH browsing.
Once the query has been refined according to the user needs,
the underlying information about tokens, lemmas, concepts
and relations is sent to the selected search engines.
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