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Disclosed is a device for information retrieval based on collocation patterns in sentences that consist of a modifier word, modifiee word, and the relationship between a modifier and modifiee word.
English (United States)
This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately
52% of the total text.
Method of Information Retrieval Based on Collocation
a device for information retrieval based on
collocation patterns in sentences that consist of a modifier word,
modifiee word, and the relationship between a modifier and modifiee
extracts collocation patterns in a query phrase or
sentence entered by a user, searches for identical or similar
collocation patterns stored as an index of text items in a database,
evaluates preferences of each text item that contain some of the
collocation patterns in the query phrase or sentence, and presents
information of preferable text items along with collocation
information contained in each text item that is relevant to the query
phrase. This device consists of a
sentence parser and dictionaries
to identify similar words, such as synonyms.
It preliminarily parses
each sentence in texts in databases and extracts collocation patterns
in order to make an index file. For
example, it extracts a
collocation pattern, program --(OBJ)-->
develop from a sentence in
which a word "program", modifies "develop" as an object,
this collocation with the identification code of the text item to
which the sentence belongs. When a user
enters a query phrase or
sentence, this device:
parses the input phrase or sentence
extracts collocation patterns from the parse result
searches for texts in the database that contain some of the
collocation patterns in the query
phrase or sentence
evaluates the preference value of each text according to the
number of collocation patterns in
the text that is common to