[54] CONVERSATIONAL-TYPE NATURAL LANGUAGE ANALYSIS APPARATUS
[75] Inventor: Hideo Ito, Tokyo, Japan
[73] Assignee: Ricoh Company, Ltd., Japan
[21] Appl. No.: 521,559
[22] Filed: May 10,1990
[30] Foreign Application Priority Data
May 18, 1989 [JP] Japan 1-124891
[51] Int. C1.5 G06F 15/38
[52] U.S. CI 364/419; 364/972.1;
364/274.8
[58] Field of Search 364/419, 900, 917.92,
364/200, 274.8
[56] References Cited
U.S. PATENT DOCUMENTS
4,654,798 3/1987 Taki et al 364/419
4,831,529 5/1989 Miike et al 364/419
4,864,502 9/1989 Kucera et al 364/419
4,914,590 4/1990 Loatman et al 364/419
FOREIGN PATENT DOCUMENTS
57- 132270 8/1982 Japan .
58- 101365 6/1983 Japan .
59- 140582 8/1984 Japan .
61-18073 1/1986 Japan .
61-80362 4/1986 Japan .
61-90269 5/19.86 Japan .
61- 278970 12/1986 Japan .
62- 271061 11/1987 Japan .
A conversational-type of language analysis apparatus includes a sentence input unit inputting a sentence, a dictionary unit and a grammar storage unit. The apparatus also includes an all-relationship detection unit dividing into the syntactical units the sentence, the syntactical units being nodes, and detecting, as candidate relationships, all linguistic relationships on the basis of the grammatical rules in the grammar storage units and dictionary information in the dictionary unit, a conversational-type analysis unit selecting correct relationships by conversation interaction with a user from the candidate relationships, the conversational-type analysis unit having conversational object selecting unit for selecting object relationships which are objects of the conversational interaction with the user from the candidate relationships, and conversation unit selecting the correct relationships by conversational interaction with the user. The apparatus also has analysis unit selecting correct relationships without the conversational interaction from relationships other than the correct relationships selected by the conversational-type analysis unit.
11 Claims, 4 Drawing Sheets
