Clearly, syntax retrieval hasn’t get the information
about crowded ought to be retrieved, and it only matches
partial information of port. But, precise ontology based
semantic retrieval can split port with crowded, crowded
and congestion are synonyms, and it can be correlated
from port to bulk port, shipping and boats and ships as
such to finish conceptual level matching. Only introduced
rough ontology into precise concept of ontology matching,
the information about crowded port (such as Shanghai
port, eastern US ports and Fangcheng port) concerned
with user’s retrieval request can be retrieved.
VI. CONCLUSIONS
Semantic information retrieval is a key application in
the field of intelligent information retrieval. Under the