JPH0535784A - Generating device for sentence having same meaning - Google Patents

Abstract

PURPOSE:To generate the sentence having the same meaning as the inputted sentence by converting proposition syntax form of the inputted sentence into the syntax form corresponding to the selected function representation. CONSTITUTION:A language function proposition understanding part (LP) 11 resolves an inputted sentence into a language function(LF) and a proposition part(PP) in order to decide its syntax form. An output sentence function representation selecting part 12 refers to the relation between LF of a language function representing table storage part (LM) and a function representation(FR), and selects one of FRs other than these in the inputted sentence from FRs belonging to resolved LF part. A proposition syntax form converting means 13 converts the syntax form of PP whose input sentence was decided by referring to the relation between FR of LM 15 and a syntax form of PP into the syntax form corresponding to the selected FR according to a specified proposition syntax form converting rule (PR). PR is stored in a PR storage part 16. An output sentence generating part 14 outputs the sentence of the same meaning as the inputted sentence by utilizing selected FR and converted syntax form.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synonymous sentence generation device for generating a sentence having the same meaning as an arbitrary sentence.

[0002]

2. Description of the Related Art Conventionally, when a sentence having the same meaning as a certain sentence is generated, an input sentence is received, the sentence is converted into an internal concept dependency expression, and then this internal concept dependency expression is converted into an input sentence. A method of generating an expression of consent is known (“Handbook of Artificial Intelligence”, Volume 1, Avaron Barr, E
dward A. Feigenbaum, edited by Kokichi Tanaka, Kazuhiro Fuchi, Kyoritsu Publishing Co., Ltd., pp.381-388, 1983). Consent statement

[0003]

[Problems to be Solved by the Invention] In language education, it is important to emphasize the "language function" of a sentence (purpose of utterance such as request or solicitation) and enhance communication ability. "Function expression" corresponding to language function ("I'd like ~" corresponding to "request", "solicitation")
"I think you should ~"). To that end, it is effective to conduct training by changing only the functional expression without changing the language function of a sentence and the content of the proposition transmitted under that language function (what is "communicative approach. What is its theory and development? , Kunihiro Nagasawa, Sanyusha Publishing, 1988).

Therefore, it can be said that it is effective for the language education system to have a function of generating a consent sentence without changing the language function of the input sentence and the content of the proposition.

However, in the above-mentioned conventional synonymous sentence generation method, such language education is not taken into consideration, that is, the language function of the sentence is not taken into consideration, and therefore the utterance purpose of the input sentence is not examined. This is because the language function corresponds to a natural language expression having a certain language function and is not due to the meaning of each word constituting the natural language expression.
Therefore, the above method has a problem in that there is no guarantee that the consent sentence that matches the utterance purpose of the input sentence is generated.

The present invention provides a consent sentence generating apparatus capable of generating a consent sentence according to a utterance purpose without changing a language function and a proposition from an input sentence in consideration of the problems of the conventional consent sentence generating method. The purpose is to do.

[0007]

The present invention provides a sentence inputting means for inputting a sentence, various language functions of a sentence, a functional expression belonging to the language function, and a proposition transmitted under the functional expression. A storage unit storing a language function expression table having a grammatical form of a corresponding portion, a language function / proposition understanding unit for determining a language function portion and a proposition portion of a sentence input from the sentence input unit, and a language function expression table. Referring to the language function expression table and the output sentence function expression selecting means for selecting one of the function expressions other than the function expression of the input sentence among the function expressions belonging to the determined language function part. ,
A propositional grammar form conversion for converting the grammatical form of the judged proposition part of the input sentence into a grammatical form corresponding to the functional expression selected by the output sentence functional expression selection means according to a predetermined propositional grammar form conversion rule. Means, and output sentence generation means for outputting the input sentence and the sentence of consent by using the functional expression selected by the output sentence functional expression selecting means and the grammatical form converted by the propositional grammar form converting means. This is a consent sentence generation device characterized by the above.

[0008]

[Function] The sentence is input by the sentence input means, the language function / proposition understanding means determines the language function portion and the proposition portion of the sentence input from the sentence input means, and the output sentence function expression selection means determines various kinds of sentences. By referring to the language function expression table having the grammatical form of the language function, the function expression belonging to the language function, and the part corresponding to the proposition transmitted under the function expression, the function expression belonging to the determined language function part is referred to. , One of the functional expressions other than the functional expression of the input sentence is selected, and the propositional grammar form conversion means refers to the language functional expression table to determine the grammatical form of the determined proposition part of the input sentence. According to a predetermined propositional grammar format conversion rule, the output statement functional expression is converted into a grammatical format corresponding to the functional expression selected by the output statement functional expression selection means, and the output statement functional expression is output by the output statement generation means. Using the converted grammatical form by the selected functional expression and propositional grammar format conversion means by-option means, for outputting a sentence consent the input sentence.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the consent sentence generating apparatus according to the present invention.

That is, the language function expression table storage unit 1
Reference numeral 5 is a disk or the like which stores a table as shown in FIG. In the figure, column 61 indicates various language functions,
The column 62 shows various functional expressions belonging to these various language functions. For example, for the language function "request", the functional expressions I'd like ()., May I () ?, and I want (). Belong. There are some functional expressions for other language functions such as "solicitation". Furthermore, 63 is
The grammatical form of the propositional part embedded in each of these functional expressions is shown. These relationships are given in this table 15.

The language function / proposition understanding unit 11 is means for decomposing an input sentence input from a keyboard or the like into so-called language functions and propositional parts, and discriminating the grammatical forms of the language functions and propositional parts. The language function and the meaning of the proposition part are as described in the section of the prior art.

The output sentence function expression selection unit 12 refers to the relationship between the language function and the function expression in the language function expression table storage unit 15, and the function expression belonging to the language function portion decomposed by the language function / proposition understanding unit 11. Is a means for selecting one of the functional expressions other than the functional expression of the input sentence.

The propositional grammar format conversion means 13 refers to the relationship between the functional expression in the language functional expression table storage unit 15 and the grammatical format of the propositional part to determine the grammatical format of the determined propositional part of the input sentence. , Means for converting into a grammatical form corresponding to the functional expression selected by the output sentence functional expression selecting means 12, according to a predetermined propositional grammar format conversion rule. The propositional grammar format conversion rule is stored in the propositional grammar format conversion rule storage unit 16. FIG. 7 is an example thereof, and in the column 71, grammatical forms before conversion are shown, 72 shows a grammatical form after conversion, and 73 shows a procedure for the conversion. For example, when converting a to-infinitive into an infinitive infinitive, the conversion procedure of removing "to" is shown.

The output sentence generation unit 14 uses the functional expression selected by the output sentence functional expression selection unit 12 and the grammatical form converted by the propositional grammar form conversion unit 13 to convert the input sentence and the synonymous sentence. It is a means for outputting.

Next, the process of generating the consent sentence according to this embodiment will be described with reference to FIG.
~ Generally described with reference to the flowchart of FIG.

A language function expression table as shown in FIG. 6 is created in advance. In addition, a propositional grammar format conversion rule as shown in FIG. 7 is created.

Then, a certain sentence is input to the consent sentence generating apparatus of this embodiment.

As shown in FIG. 2, the linguistic function / proposition understanding unit 11 refers to the linguistic function expression table 15 to collate the functional expressions used in the input sentence, and to find the functional expression which has succeeded in collation. -In func, the language function to which the function expression belongs is assigned to function. At that time, the proposition part of the input sentence is taken out and substituted in in-prop (step 21). Further, the input sentence is syntactically analyzed, and the grammatical form of the propositional part of the found input sentence is substituted into in-prop-form (step 22).

As shown in FIG. 3, the output sentence functional expression selecting unit 12 selects one of the functional expressions belonging to the language function of the input sentence thus obtained, other than the functional expression of the input sentence. Is selected and assigned to out-func. Furthermore, since the selected functional expression has a grammatical form that the propositional part of the expression should take, it is used as the language functional expression table 1.
5, and the grammatical form is assigned to out-prop-form (step 31). The propositional grammar format conversion unit 13
In-prop-form and out-prop-f, obtained as above
orm is compared (step 41), and if they are different,
Use the Propositional Grammar Format Conversion Rule 16 to change in-prop to out-p
The grammar format assigned to rop-form is converted and assigned to out-prop (step 42). On the other hand, in-prop-fo
If the contents of rm and out-prop-form are the same, in-prop is out-
Substitute in prop (step 43).

The output sentence generator 14 is, as shown in FIG.
Out-prop is embedded in the part () (propositional part in the functional expression) in the expression of out-func and is substituted for out-sentence (step 51), and out-sentence is output.

Next, the operation of this embodiment will be described in more detail by taking concrete sentences as an example.

It is assumed that the sentence "I'd like to borrow the book" is input.

When the language function / proposition understanding unit 11 collates the sentence with each function expression in the function expression column 62 of the language function expression table 15, it is found that "I'd like" is a function expression. -Substitute "I'd like" for func. Furthermore, "request", which is the language function to which the functional expression "I'd like" belongs, is assigned to function. Also, language expression 6
The character string corresponding to () of 2, that is, the character string "to borrow the book" which is the propositional part of the input sentence is substituted into in-prop (step 21). It also parses the input and uses in-pro
In-p the "to-infinitive" which is the grammatical form of the part corresponding to p
Substitute in rop-form (step 22).

The output sentence functional expression selection unit 12 uses the functi.
From the "request" that is the content of on, the language function expression table 1
5, each function expression (I'd like to (), May I (), I want
())), One function expression other than the function expression (I'd like to ()) assigned to in-func is selected. For example, select May I (). The method of selection is arbitrary. For example, the function expression existing next to the function expression of in-func may be automatically selected. If it does not exist, it is the highest functional expression. Therefore, the selected "May I ()" is assigned to out-func, and the () part of the functional expression "May I ()", that is, the "protomorphic infinitive" that is the grammatical form of the proposition part is out- prop-for
Substitute for m (step 31).

The propositional grammar format conversion unit 13 uses the in-prop-form
And the contents of out-prop-form are compared (step 41). Here, since the content of in-prop-form is "to-infinitive" and the content of out-prop-form is "protomorphic infinitive", the rule of the propositional grammar format conversion rule storage unit 16 is activated, and in Convert the contents of -prop to the grammar form of out-prop-form. That is, the procedure for converting "to-infinitive" to "original infinitive" is to "remove" to "" with reference to the propositional format conversion rule, as shown in FIG. The content of in-prop is "to borrow the book", so "t
The "borrow the book" from which "o" has been removed is substituted for out-prop (step 42).

The output sentence generator 14 embeds the content of out-prop obtained in step 42 in () which is the propositional part of out-func, and substitutes it into out-sentence. That is, "May
Embed "borrow the book" in the () part of "I ()?"
"ayI borrow the book?" is substituted for out-sentence (step 51) and output (step 52).

Next, the process when the function expression "I want ()." Is selected from the language function expression table 15 in the output statement function expression selection unit 12 with the same input statement will be described.

In this case, the contents of each variable are in-func "I'd".
like (). ", function is" request ", in-prop is" borrow "
out-func because the book. ", in-prop-form is" to-infinitive "and the functional expression" I want (). "
Is assigned to "I want ()." And out-prop-form is assigned to "to-infinitive" (step 31).

In the propositional grammar format conversion unit 13, the in-prop-form
And the contents of out-prop-form are compared (Step 4
1), in this case, they are equal, so the content of in-prop is "bo
Substitute "rrow the book" into out-prop (step 4
3).

Further, in the output sentence generator, the functional expression "May
Same processing as when "I ()?" Is selected (step 51,
52) said, "I want to borrow t" in the out-sentence.
he book. "is substituted and output.

Each means of the present invention may be realized by software using a computer, or may be realized by using a dedicated hardware circuit having the function of each means.

[0033]

As is apparent from the above description, according to the present invention, the language functional part and the propositional part of the input sentence are judged, and among the functional expressions belonging to the language functional part, functions other than the functional expression of the input sentence. By selecting one of the expressions and converting the grammatical form of the propositional part of the input sentence into a grammatical form corresponding to the selected functional expression, it is possible to generate a sentence of agreement with the input sentence. It has the advantage that a synonymous sentence can be generated according to the utterance purpose without changing the proposition.

[Brief description of drawings]

FIG. 1 is an overall configuration block diagram of an embodiment of a consent sentence generation device of the present invention.

FIG. 2 is a processing flow diagram of a language function / proposition understanding unit of the embodiment.

FIG. 3 is a flowchart of an output sentence functional expression selection unit of the same embodiment.

FIG. 4 is a processing flow chart of a propositional grammar format conversion unit of the embodiment.

FIG. 5 is a process flow diagram of an output sentence generation unit of the embodiment.

FIG. 6 is a diagram showing an example of a language function expression table of the same embodiment.

FIG. 7 is a diagram showing an example of a propositional grammar format conversion rule of the same embodiment.

[Explanation of symbols]

 11 Language Function / Proposition Understanding Means 12 Output Sentence Function Representation Selection Means 13 Propositional Grammar Format Conversion Means 14 Output Sentence Generation Means 15 Language Function Representation Table Storage Means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiro Inui 3-295 Chiyosaki, Nishi-ku, Osaka City Information Systems Co., Ltd. (72) Inventor Yukari Many 3-8-10 Uchiyama, Chikusa-ku, Nagoya Stocks Company Oki Techno Systems Laboratory (72) Inventor Toshihiko Miyazaki 1-7-12 Toranomon, Minato-ku, Tokyo Oki Electric Industry Co., Ltd.

Claims (1)

Claims: 1. A sentence input means for inputting a sentence, various language functions of a sentence, functional expressions belonging to the language function, and propositions transmitted under the functional expression. Table storage means for storing a language function expression table having a grammatical form of a portion, language function / proposition understanding means for determining a language function portion and a proposition portion of a sentence input from the sentence input means, and the language function expression table With reference to, the output sentence functional expression selecting means for selecting one of the functional expressions other than the functional expression of the input sentence among the functional expressions belonging to the judged language functional part, and the language functional expression table. , The function table selected by the output sentence function expression selecting means in accordance with a predetermined propositional grammar format conversion rule for the grammatical format of the determined proposition part of the input sentence. Using the propositional grammar form conversion means for converting into a grammar form corresponding to, the functional expression selected by the output sentence functional expression selection means, and the grammar form converted by the propositional grammar form conversion means. An agreement sentence generation device, comprising: a sentence and an output sentence generation means for outputting a consent sentence.