FLORID is an implementation of F-Logic by the database group at the
University of Freiburg (Germany). In the talk, the Web extension of
FLORID is presented. It allows for wrapping, restructuring and
integrating data from the Web, in a unified framework by using F-Logic
rules as unique language for programming and querying. The
object-oriented Web Model is based on the classes url and webdoc for
representing the skeleton of a relevant Web fragment. The
intra-document structure is represented by parse-trees which are
integrated into the Web skeleton. In the information retrieval task,
objects in the extended Web skeleton are identified and restructured
into an object-oriented model of the application domain. The wrapping
task is done by analyzing the F-Logic representation of the parse-tree
and by matching with perl regular expressions. The approach is
illustrated by two case studies.
