At first, the system splits all of sentences, which are title of
articles in the expert publication database. It splits sentences to
sub sentences by punctuations.
Second, the system parses clauses from those split
sentences by Stanford NLP toolkits [11]. There are several
types in those clauses. However, there are two reasons that let
us choice two type clauses, “Noun+Noun” and “(Adj |
Noun)+Noun," in the system. One is that queries are some
terms of domain, and they are nouns. The other is they are
short terms of noun in general.