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Automat cally Extract ng and Tagg ng Bus ness Informat on for E-Bus ness Systems
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Syntactic.Analysis
Syntactic analysis helps FIRST to identify the role of each word and phrase in a
sentence. It tells whether a word or phrase functions as subject, verb, object, or
modifier. The sentence: ???Jim works for a big bank in NY,??? for example, has the
following sentence structure, or pars tree. (See Exhibit A.)
This parse tree shows that the subject of the sentence is ???Jim,??? the verb is the present
tense of ???work,??? and the modifier is the prepositional phrase ???for a big bank
in NY.???
In general, most natural language processing systems require a sophisticated knowledge
base, the lexicon (a list of words or lexical entries), and a set of grammar rules.
While it would be possible to use a full-fledged parser to incorporate grammar rules
into a system like ours, we felt that a part-of-speech tagger would be more robust.
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