JPS62211770A - Sentence tone converter - Google Patents

Abstract

PURPOSE:To convert automatically inputted sentences ending with 'desu' or 'masu' ('desu . masu' tone) to those ending with 'da' or 'dearu' ('da . dearu' tone) by using a dictionary function. CONSTITUTION:Japanese sentences of 'desu masu' tone are stored by an input sentence means 1. The inputted sentence of 'desu . masu' tone is divided into word strings by a word dictionary storage means 2, a grammatical dictionary storage means 3, and a word dividing means 4. After divided word strings are stored in a word string storage means 5, a 'desu' deleting means 6, a 'da' inserting means 7, a 'masu' deleting means 8, and a verb conjugating means 9 are started to convert them in accordance wtih conjugations of 'desu . masu' tone, and connection relations are corrected, thus converting them to a Japanese sentence of 'da . dearu' tone.

Description

[Detailed description of the invention] [Industrial field of application] The present invention converts the Japanese sentence "desu-masu" into "da-desu".
The present invention relates to a tone conversion device for converting Japanese sentences into tone-toned Japanese sentences.

[Conventional technology]

In general, the tones of Japanese sentences are ``dezu・mazu'' tone and ``da・mazu'' tone.
It can be divided into one of two types. For example, "Desu・
First, the sentence in the tone is as follows.

It's raining today, but tomorrow It's going to be bright and sunny.

If this example sentence were written in the ``da・deru'' tone, it would be as follows.

It's raining today, but tomorrow I'm sure it will be sunny.

Sentences in the tone ``desu・mazu'' are sentences that address the reader in detail, while sentences in the tone ``da・deru'' are sentences that are concise and descriptive. Because of this difference in impression, tone is used differently depending on the purpose of the sentence. Most commercial texts are in the ``desu/masu'' tone, and most papers are in the ``da/deru'' tone. Therefore, when trying to use a sentence for a different purpose, it may be necessary to change the tone of the sentence.

In recent years, word processors have become widespread, and electronic texts have come to be created and managed, making it easier to use a single text for various purposes.

In this case, there are many cases where the tone of the sentence is changed.

Conventionally, when converting a sentence in the tone of ``desu/masu'' to a sentence in the tone of ``da/deru'', use a string replacement function such as a word processor to replace ``dezu'' with [da1. However, the sentence containing "Masu J" requires changing the conjugated form of the verb immediately before it, and cannot be achieved using the string replacement function alone. In order to convert it into a sentence in the style of ``is'', Iruma had to rewrite it sentence by sentence.

[Problem that the invention seeks to solve]

Conventionally, even though electronically edited sentences are created using word processors, etc., the task of rewriting the tone cannot be done manually as described above, which hinders the use of the sentences for other purposes. There was a problem.

An object of the present invention is to provide a tone conversion device that automatically converts a Japanese sentence in the tone "dezu/masu" into a Japanese sentence in the tone "da/deru".

[Means for solving problems]

The device of the present invention includes an input sentence storage means for storing an input Japanese sentence in the "dezu-mazu" style, a word dictionary storage means for storing a word dictionary storing Japanese words along with parts of speech, a grammar dictionary storage means for storing a grammar dictionary that describes whether or not words can be connected, and words for dividing the Japanese sentence in the "dezu-masu" style into word strings by searching the word dictionary and the grammar dictionary. a dividing means, a word string storage means for storing the word string divided by the word dividing means, and an auxiliary verb "" from the word string stored in the word string storage means.
``desu'' deletion means deletes ``desu'' and the same conjugation as the deleted auxiliary verb ``desu'' is placed in the position where the auxiliary verb ``desu'' deleted by the ``dezu'' deletion means in the word string storage means existed. ``da'' insertion means for inserting the auxiliary verb ``da'' in the form; ``masu'' deletion means for deleting the auxiliary verb ``Mazu'' from the word string stored in the word string storage means; the word dictionary and the grammar dictionary; conjugation that can connect the verb at the position immediately before the auxiliary verb "Mazu" deleted by the auxiliary verb "Mazu" in the word string storage means with reference to the word string storage means to the word at the position immediately after the deleted auxiliary verb "Masu". It consists of a verb conjugation transformation means that transforms into a form.

〔Example〕

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

FIG. 1 is a block diagram showing the configuration of an embodiment of the tone conversion device of the present invention. Each component will be explained.

In FIG. 1, l is an input sentence storage means, which stores the input Japanese sentence in the tone of "desu/masu". An IC memory, a magnetic disk device, a magnetic tape device, etc. can be used. ).

Reference numeral 2 denotes a word dictionary storage means, which stores a word dictionary containing Japanese words together with their parts of speech. Reference numeral 3 denotes a grammar dictionary storage means, which stores a grammar dictionary that describes whether or not Japanese words can be connected. Reference numeral 4 denotes a word dividing means, which divides the Japanese sentence in the tone ``desu・mazu'' stored in the input sentence storage means 1 into word strings by searching a word dictionary and a grammar dictionary.

These means 2 to 4 can be realized using known techniques, and for example, the literature [Japanese dictionary storage and automatic segmentation of Japanese sentences] (Nagaya, Tatsuben, Yamagami, Takebe, Information Processing 19)
Volume 6, pages 514-521.

1978). Furthermore, means 2 to 4 are applicable not only to Japanese sentences in the style of "desu/masu" but also to general Japanese sentences.

Reference numeral 5 denotes a word string storage means, which stores the word string divided by the word dividing means 4. It has information about at least the word notation, part of speech, word position, etc. The contents of the word storage means 5 are "desu" deletion means 6. ``Da'' insertion means 7. "Masu" deletion method 8. As the verb conjugation transformation means 9 is activated, it is rewritten by these means 6, 7, 8, and 9.

6 is a "desu" deletion means, which deletes the auxiliary verb "desu" from the word string stored in the word string storage means 5. "is,
To explain in more detail the processing contents of the 1 deletion means 6, the ``desu'' deletion means 6 extracts from the contents of the word string storage means 5 the unnatural form ``deshima'', the conjunctive form ``deshi'', and the final form of the auxiliary verb 1 ``deshi''. The form ``desu'' is searched for, and if found, the auxiliary verb ``dezu'' is deleted from the contents of the word string storage means. At this time, the "desu" deletion means 6 outputs information regarding the position and conjugation of the deleted auxiliary verb "desu J" to the "1 da" insertion means 7.

7 is a ``da'' insertion means, and according to the information about the position and conjugation of the deleted ``desu'' sent from the ``desu'' deletion means 6, the existence of the deleted ``desu'' in the word string storage means 5 is determined. Insert the auxiliary verb ``da'' in the same conjugation as the deleted conjugation of ``desu.'' In other words, "desu"
If ``Desu'' deleted by deletion means 6 was the unnatural form ``Deshiyo'', then the unnatural form ``Dora'' of the auxiliary verb ``Da'' is changed, and the deleted ``Dezu'' is the conjunctive form ``Deshi''. The deleted form ``desu'' changes the conjunctive form ``tatsu'' of ``da'' to the final form ``tadara''.
If it is, the final form of ``da'' is inserted at the position where the deleted ``desu'' existed.

8 is a "masu" deletion means, which deletes the auxiliary verb "masu" from the word string stored in the word string storage means 5. To explain in more detail the processing contents of the auxiliary verb "masu" 8, "masu" is deleted from the word string stored in the word string storage means 5. The deletion means 8 selects from the contents of the word string storage means 5 the unnatural form of the auxiliary verb ``masu'', ``masho'', the adjunctive form ``mashi'', the final form/adjunctive form ``masu'', the hypothetical form ``masre'', and the imperative form. "Better".

``Search for Mase-1, and if it is found, the auxiliary verb ``
First, " is deleted from the contents of the word string storage means 5. At this time, the "masu" deletion means 8 outputs information regarding the position of the deleted auxiliary verb "masu" to the verb conjugation transformation means 9.

Reference numeral 9 denotes a verb conjugation transformation means, which refers to the word dictionary stored in the word dictionary storage means 2 and the grammar dictionary stored in the grammar dictionary storage means 3, and deletes information sent from the "masu" deletion means 8. Based on the information about the position of the auxiliary verb "masu" that was deleted, the verb in the position immediately before the deleted auxiliary verb "masu" (the auxiliary verb
The part immediately before "masu" is a verb, and is limited to the continuous form).
It is transformed into a conjugated form that can be connected to the word immediately after the deleted auxiliary verb "masu" (punctuation marks and other delimiters are also considered to be a type of word).

10 is a converted sentence output means, and a "desu" deletion means 6. "
Insertion means 7. ``Masu'' deletion means 8. Based on the word string in the word string storage means 5 rewritten by the verb conjugation transformation means 9, a sentence in the tone ``da・deru'' is output.

Reference numeral 11 denotes a control means, which controls the verbs of each means 1 to 10 above. A computer CPU or the like is used.

Next, the operation of this embodiment will be explained using an example.

It is assumed that the input sentence storage means 1 stores the following sentences in the tone of "desu/masu".

It's raining today, but tomorrow I'm sure it will be sunny.

2 shows an example of the word dictionary 20 stored in the word dictionary storage means 2, and FIG. 3 shows an example of the grammar dictionary 30 stored in the grammar dictionary storage means 3.

In FIG. 2, 200 is the notation of the word, and 201 is the part of speech of the word. In the word dictionary 20 shown in FIG.
They are arranged in order of character code 00. The notation 200 that matches the substring of the input string is stored in the word dictionary 20.
By searching from within, word candidates can be detected from the input character string. Furthermore, by referring to the grammar dictionary 30 based on the part of speech of the detected word candidate, a connection test between words can be performed and the input character string can be divided into word strings.

The grammar dictionary 30 in FIG. 3 is a matrix that describes the connectivity between two parts of speech, and the rows are the part of speech of the preceding word,
The column represents the part of speech of the word that comes after, and the 71-lix element indicates whether it can be connected to 1 or 0 (1 = connectable, 0 = not connectable).
It is expressed as

By referring to the word dictionary 20 and grammar dictionary 30 as described above, the word division means 4 divides the sentence stored in the input sentence storage means 1 into word strings, and outputs the result to the word string storage means 5. do. In this example, the following word string is output to the word string storage means 5.

Today (noun) is (modifying particle ``ha'') Rain (noun) ka (case particle ``ga'') Fall (5-stage verb stem in U-line) Te (conjunctive particle ``TE'') ) I (one-stage verb continuous form) Masu (final form of the auxiliary verb "Mazu") ga (conjunctive particle "ga"), (comma) Tomorrow (noun) Haku conjunction particle "ha") Surely (adverb) Sunny (one-stage verb stem) ru (one-stage conjugated final adjunctive form) deshiyo (auxiliary verb ``desu'' unnatural form) uku auxiliary verb ``u'' final form). (Period) Next, the "dezu" deletion means 6 searches for the following conjugated form of the auxiliary verb "desuj" from among these.

deshiyo (the auxiliary verb ``desu'' (unnatural form)) deshiku auxiliary verb ``desu'' (conjunctive form) desu (the auxiliary verb ``desu'' (final form)) In this example, ``deshiyo'' is found. So, "desu"
The deletion means 6 deletes "doshi" from the word string storage means 5, and outputs its position and inflection to the "da" insertion means 7.

...Hare (one-stage verb stem) Ru (one-stage conjugated final adjunctive form) *U (auxiliary verb "u" final form). (Period) Ne...The position where "desu" was deleted, the unnatural form "da" insertion means 7 is the position where "dezu" was deleted from the "desu" deletion means 6, and the conjugated form of "desu" that was deleted. Then, insert the same conjugated auxiliary verb 'da' in that position. “Desu” Auxiliary verb “da” inserted according to the conjugation form received from deletion means 6
The conjugations of are as follows.

Unnatural form → dara (auxiliary verb “da”, unnatural form) Conjunctive form → da (auxiliary verb “da”, continuous form) Final form → da (auxiliary verb “da”, final form) In this example, the unnatural form “dora” will be inserted. ,
As a result, the contents of the word string storage means 5 are rewritten as follows.

...Hare (one-step verb stem) Ru (one-step conjugated adjunctive form) Dara (modal verb "da" unnatural form) U (auxiliary verb "u" final form). (Punctation) Next, "Masu" deletion means 8 The following conjugated form of the auxiliary verb "Mazu" is searched from the word string storage means 5.

Mase (auxiliary verb “masu” unnatural form 1) Mashiyo (auxiliary verb “masu” unnatural form 2) Mashi (auxiliary verb “masu” conjunctive form) Masu (auxiliary verb “masu” final form) Masu (auxiliary verb “masu” conjunctive form) Masure ( Mashi (auxiliary verb "Mazu", imperative form 1) Mase (auxiliary verb "Mazu", imperative form 2) In this example, the final form "masu" is found.Therefore, 1 masuj deletion means 8 is used to delete the word The final form "Mazu" is deleted from the column storage means 5, and its position is outputted to the verb conjugation transformation means 9.

...i (one-step verb conjunctive form) *ka (conjunctive particle "ga"), (comma) tomorrow (noun)... *...Positive verb conjugation transformation means 9 that deletes "masu" is "Mazu" Upon receiving the position from which "Mazu" has been deleted from the deletion means 8, the conjugated form of the verb at the position immediately before that position is transformed into a form that can be connected to the word immediately following it. In this example, the first-stage verb ``Iru'' is transformed into a conjugated form that can be connected to the conjunctive form [iJ to the conjunctive particle 1° ga''. This transformation is
This is done with reference to the grammar dictionary 30 and word dictionary 20.

This modification will be explained using the example of the word dictionary 20 in FIG. 2 and the example of the grammar dictionary 30 in FIG. 3. First, among the elements corresponding to the intersection of the corresponding line of the one-stage verb in the grammar dictionary 30 of FIG. 3 and the example corresponding to the conjunctive particle "ga", an element that is 1 (= connectable) is searched.

As a result, there is 1 element where the row is the final conjugated form and the column is the conjunctive particle ``ga'', so the conjugated form of the 1-level verb that can be connected to the conjunctive particle ``ga'' is the final form. Recognize. Next, the part of speech 201 of the word dictionary 20 shown in FIG. 2 is searched to find a word corresponding to the final form of the single-stage verb "Iru". In this example, we will search for the stem and final form of the single-stage verb ``Iruj''.

Then, the word string storage means 5 uses the found one-stage verb "I-1's stem 'i' and one-stage conjugation ending final form".
One-stage verb conjunctive form [replaces i1] in the middle. As a result, the contents of the word string storage means 5 are rewritten as follows.

...i (one-stage verb stem) ru (one-stage conjugated ending final form) ga (conjunctive particle "ga J"), (comma) tomorrow (noun)... When the above processing is completed, the word string storage means 5 The contents are as follows.

Today (noun) (case particle "ha") Rain (noun) (case particle "ga") fall (U-line 5-stage verb stem) tsu (U-line 5-stage conjugation final consonant stool form) Te (conjunctive particle "te") ”〉 I (1st step, verb stem) Ru (1st step conjugated final form) ga (conjunctive particle “ga”), (comma) Tomorrow (noun) wa (conjunctive particle “ha”) Surely (adverb) Sunny (1st step verb stem ) ru (one-stage conjugated ending adjunctive form) dara (auxiliary verb "da" unnatural form) う (auxiliary verb "u" final form). Outputs a sentence.

It's raining today, but tomorrow I'm sure it will be sunny.

As described above, the input sentence in the tone of ``desu・mazu'' has been converted into a sentence in the tone of ``da・deru'' and has been output.

In this example, "desu" deletion means 6. The "da" insertion means 7 is applied beyond the "masu j deletion means 8.verb conjugation transformation means 9", but the "masu" deletion means 8. After applying the verb conjugation transformation means 9, "desu" deletion means 6. It is clear that similar results can be obtained even if the "da" insertion means 7 is applied, and the tone conversion device of the present invention does not impose any restrictions on the order in which it is applied.

Also, I explained an example when inputting a - sentence, but "desu J
・It is clear that similar processing can be performed when converting sentences (multiple sentences) in the tone of "masu" into sentences in the tone of "da・deru" all at once.

Furthermore, when a sentence with the tone of "da/desu" is input to the tone conversion device of this embodiment, the "desu" deletion means 6. "is"
Insertion means7. "Masu" deletion means 8゜verb conjugation transformation means 9
The converted sentence output means 10 is not rewritten by
will output a sentence with the same ``de/desu'' tone as the input sentence.

[Effect of the invention] As explained above, according to the present invention, "desu・masu"
This has the effect of automating the conversion from Japanese sentences in the tone to Japanese sentences in the tone ``da・deru''.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram showing an example of a word dictionary 20, and FIG. 3 is a diagram showing an example of a grammar dictionary 30. 1... Input sentence storage means, 2... Word' dictionary storage means, 3... Grammar dictionary storage means, 4... Word division means,
5... Word string storage means, 6... "Dezu" deletion means,
7... Means for inserting "da", 8... Means for deleting "masu",
9... Verb conjugation transformation means, 10... Converted sentence output means, 11... Control means, 20... Word dictionary, 30...
・Grammar dictionary. Figure 2

Claims (1)

[Claims] Input sentence storage means for storing input Japanese sentences in the style of "desu/masu"; word dictionary storage means for storing a word dictionary storing Japanese words along with parts of speech; and description of whether or not Japanese words can be connected. a grammar dictionary storage means for storing a grammar dictionary, a word division means for dividing the Japanese sentence in the "desu-masu" tone into word strings by searching the word dictionary and the grammar dictionary, and the word division means a word string storage means for storing word strings divided by , a ``desu'' deletion means for deleting the auxiliary verb ``desu'' from the word string stored in the word string storage means; ``Da'' insertion means for inserting the auxiliary verb ``DA'' in the same conjugation form as the deleted auxiliary verb ``DES'' in the position where the auxiliary verb ``DES'' was deleted by the deletion means, and the word string storage means. ``Masu'' deletion means for deleting the auxiliary verb ``Masu'' from the stored word string, and the auxiliary verb ``Masu'' deleted by the ``Masu'' deletion means in the word string storage means with reference to the word dictionary and the grammar dictionary. 1. A tone conversion device comprising: a verb conjugation transforming device that transforms a verb in a position immediately before the deleted auxiliary verb "masu" into a conjugated form that can be connected to a word in a position immediately after the deleted auxiliary verb "masu".