JPH11259474A - Machine translation system and machine translating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machine translation system and a machine translating method whose translation accuracy is improved by excluding ambiguity of a phrase to be modified to which a prepositional phrase is subordinated to be derived from grammatical ambiguity of a natural language. SOLUTION: When the prepositional phrase exists in an original sentence of an original language, a translated sentence is generated by extracting four cooccurrence words of the prepositional phrase, i.e., a preposition of the prepositional phrase, a main noun of the prepositional phrase, candidates for the words to be modified to be subordinated to the prepositional phrase with adverbial usage, candidates for line words to be modified to be subordinated to the prepositional phrase with adjective usage, retrieving cooccurrence information of the prepositional phrase corresponding to the cooccurrence words of the prepositional phrase from a common cooccurrence information list 103a and a registrable user cooccurrence list 103b and deciding the phrase to be modified by the prepositional phrase by usage of the prepositional phrase of the cooccurrence information of the prepositional phrase.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a machine translation device and a machine translation method for translating a source language sentence into a target language sentence.

[0002]

2. Description of the Related Art In a conventional machine translation apparatus, a source sentence of a certain source language is analyzed by parsing according to the grammar of the source language and translated to obtain a target language translation.

[0003]

However, in the natural language, when a plurality of parse trees are given to the same phrase or sentence in parsing, the phrase or sentence becomes a grammatically ambiguous phrase or sentence. It is known that ambiguity is inherent. That is, there may be a plurality of modified phrases that can be grammatically modified for a given modifier. For example, in the case of the English sentence "I saw agirl with a telescope."
There are two possibilities for modifying the preposition phrase “with a telescope”, which is a modifier, “a girl” and “saw”. As a usage of the preposition phrase, a usage that modifies a noun phrase (“a girl” in the above example) is called an adjective usage, and the preposition phrase is a verb phrase, an adjective phrase, or an adverbial phrase (in the above example, “saw”). )) Is called an adverbial usage. Whether a prepositional phrase takes an adjective or adverbial usage depends on each case, and there is no set rule.

[0004] The conventional machine translator cannot remove the ambiguity of the qualified phrase with respect to the prepositional phrase due to the grammatical ambiguity of the natural language, and has a problem that an accurate translation result cannot be obtained. Was.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems. The present invention solves the above problem by collecting statistical information (prepositions of prepositional phrases, prepositional phrases of prepositional phrases, etc.) from a corpus collecting a large amount of analyzed sentences in general sentences of the source language. Information on the usage of prepositional phrases, which is determined by the combination of the main noun, the qualified phrase to which the prepositional phrase of the adverbial usage depends, and the qualified phrase to which the prepositional phrase of the adjective usage depends. Call), a list of prepositional phrase co-occurrence information (common co-occurrence information list) is created in advance, and a list of prepositional phrase co-occurrence information (user co-occurrence) that allows the user to register unique prepositional phrase co-occurrence information Information list), and by referring to the common co-occurrence information list and the user co-occurrence information list during translation, identification based on statistical data on usage of preposition phrases and identification of preposition phrase usage by user designation are performed. It allows to eliminate the ambiguity of the qualifiers in the prepositional phrase, and an object thereof is to provide a highly translation accuracy machine translation apparatus and machine translation method.

[0006]

According to the present invention, there is provided a machine translation apparatus for translating a sentence in a source language into a sentence in a target language. A common co-occurrence information list for storing prepositional phrase co-occurrence information related to the destination, and an additional registrable user co-occurrence information list for storing prepositional phrase co-occurrence information for the destination of the prepositional phrase in the source language registered by the user. A co-occurrence information registration unit that registers prepositional phrase co-occurrence information in a user co-occurrence information list, a co-occurrence word extraction unit that extracts a prepositional phrase co-occurrence word related to a destination of a prepositional phrase in the source language of the source language, A co-occurrence information search unit that searches for a preposition phrase co-occurrence information corresponding to a co-occurrence word from a co-occurrence information list, and a translation unit that determines a qualified phrase of the preposition phrase based on the preposition phrase co-occurrence information and translates the original sentence It has a configuration provided.

With this configuration, it is possible to eliminate the ambiguity of the modified phrase of the prepositional phrase and provide a machine translation device with high translation accuracy.

[0008] The "preposition phrase co-occurrence word" is a preposition of a preposition phrase, a main noun of the preposition phrase, a candidate of a qualified word to which the preposition phrase of the adverbial usage depends on a certain preposition phrase,
It refers to the four qualified words that are the candidates of the qualified word to which the preposition phrase of adjective usage depends. Further, `` preposition phrase co-occurrence information corresponding to a preposition phrase co-occurrence word '' means that the prepositions of the preposition phrases of the preposition phrase co-occurrence word and the preposition phrase co-occurrence information are equal, the main noun of the preposition phrase, and the adjective. This means that the unmodified forms of the qualified word candidate to which the preposition phrase of the usage depends and the qualified word candidate of the qualified word to which the preposition phrase of the adverbial usage depends are equal.

In order to solve the above problem, a machine translation method according to the present invention is a machine translation method for translating a sentence in a source language into a sentence in a target language, wherein the preposition phrase relates to a destination of a preposition phrase in the source language. A co-occurrence word extraction process for extracting co-occurrence words, a pre-prepared common co-occurrence information list storing preposition phrase co-occurrence information relating to the destination of preposition phrases in the source language, and a source language registered by the user. A co-occurrence information search step of searching for a preposition phrase co-occurrence information corresponding to the preposition phrase co-occurrence information from an additionally registerable user co-occurrence information list in which preposition phrase co-occurrence information regarding a prepositional phrase is related, And a translation process of translating the original sentence by determining the qualified phrase of the preposition phrase based on the preposition phrase co-occurrence information.

With this configuration, it is possible to eliminate the ambiguity of the modified phrase of the prepositional phrase and provide a machine translation method with high translation accuracy.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A machine translation apparatus according to claim 1 of the present invention is a machine translation apparatus for translating a sentence in a source language into a sentence in a target language. A co-occurrence information list that stores phrase co-occurrence information; a user co-occurrence information list that additionally stores prepositional phrase co-occurrence information regarding a destination of a prepositional phrase in a source language registered by a user; A co-occurrence information registration unit that registers prepositional phrase co-occurrence information in the occurrence information list, a co-occurrence word extraction unit that extracts prepositional phrase co-occurrence words related to the destination of the prepositional phrase in the source language source text, and a prepositional phrase co-occurrence word A co-occurrence information search unit that searches for a preposition phrase co-occurrence information corresponding to a preposition phrase from a co-occurrence information list, and a translation unit that determines the qualified phrase of the preposition phrase based on the preposition phrase co-occurrence information and translates the original sentence With this configuration, Lyrics phrase modified destination ambiguity is eliminated translation accuracy has the effect of improving.

A machine translation apparatus according to a second aspect of the present invention is the machine translation apparatus according to the first aspect, further comprising a co-occurrence information creating unit for creating preposition phrase co-occurrence information from the usage information additional sentence of the source language. With this configuration, when the prepositional phrase co-occurrence information is registered in the user co-occurrence information list, the extraction of the prepositional phrase co-occurrence word from the original text and the extraction of each extracted prepositional phrase co-occurrence It is possible to automate the conversion of the inflected form or plural form to the singular form and to create the preposition phrase co-occurrence information, thereby improving the operability of the user when registering the preposition phrase co-occurrence information. Having.

According to a third aspect of the present invention, there is provided a machine translation apparatus according to the first aspect, wherein a display unit having a display surface for displaying information and a specific position on the display surface are indicated. An instruction unit, a co-occurrence information temporary storage unit that temporarily stores preposition phrase co-occurrence information, and a usage change unit that changes the usage of the preposition phrase according to a user's instruction to change the preposition phrase usage. With this configuration, when the prepositional phrase co-occurrence information is registered in the user co-occurrence information list,
The operation of registering the prepositional phrase co-occurrence information in the user co-occurrence information list is simplified, and the operability of the user at the time of registering the prepositional phrase co-occurrence information is improved.

A machine translation method according to a fourth aspect of the present invention is a machine translation method for translating a source language sentence into a target language sentence, wherein a preposition phrase relating to a destination of a preposition phrase in the source language original sentence is shared. A co-occurrence word extraction process for extracting a word, a pre-prepared common co-occurrence information list in which preposition phrase co-occurrence information relating to the destination of the preposition phrase in the source language is stored, and a source language preposition registered by the user. A co-occurrence information search process for searching for a preposition / phrase co-occurrence information corresponding to a preposition / phrase co-occurrence word from an additionally registerable user co-occurrence information list in which preposition / phrase co-occurrence information relating to a phrase destination is stored; And a translation process of translating the original text by determining the qualified phrase of the prepositional phrase based on the co-occurrence information.
This has the effect of eliminating the ambiguity of the modification destination of the prepositional phrase and improving the translation accuracy.

(Embodiment 1) FIG. 1 is a functional block diagram of a machine translation apparatus according to Embodiment 1 of the present invention.

In FIG. 1, reference numeral 100 denotes an input unit having a function of inputting an original sentence of a source language; 102, a co-occurrence word extraction unit having a function of extracting a prepositional phrase co-occurrence word of the original sentence; 103a and user co-occurrence list 103
The co-occurrence information storage unit 104 having a function of storing the b. The co-occurrence information storage unit 104 has a function of searching for the preposition phrase co-occurrence information corresponding to the preposition phrase co-occurrence word from the common co-occurrence information list 103a and the user co-occurrence information list 103b. An information retrieval unit, 105 is a co-occurrence information registration unit having a function of registering co-occurrence information in a user co-occurrence information list, and 106 determines a qualifying phrase of a preposition phrase based on preposition phrase co-occurrence information, and sets a target from a source language original. A translation unit having a function of generating a translation of a language; 107, an output unit having a function of outputting a translation; 108, an input unit 100;
A control unit having a function of controlling the flow of data among the co-occurrence word extraction unit 102, the co-occurrence information search unit 104, the co-occurrence information registration unit 105, the translation unit 106, and the output unit 108 in accordance with the operation flow described below. is there.

FIG. 2 is a diagram showing an internal state of the common co-occurrence information list according to the first embodiment of the present invention. The common co-occurrence information list is a list of qualified word candidates to which the prepositional phrase of adverbial usage depends, qualified word candidates to which the prepositional phrase of adjective usage depends, prepositions of prepositional phrases, main nouns of prepositional phrases, and usage of prepositional phrases , Is a list of elements composed of four words and usages.

For example, the English sentence "I saw a girl with a tele
In the case of the preposition phrase "with a telescope" in "scope." and the qualified phrase "saw" related to the preposition phrase of the adverbial usage and the qualified phrase "a girl" related to the adjective usage, the common co-occurrence information list In the field, elements consisting of four words and usage such as "see, girl, with, telescope, adverb usage" are registered as preposition phrase co-occurrence information corresponding to the preposition phrase and the subject phrase.

FIG. 3 is a device block diagram of the machine translation device according to the first embodiment of the present invention.

In FIG. 3, reference numeral 301 denotes an input device, which is constituted by one or more combinations of a keyboard, a pointing device such as a mouse, a touch panel and a trackball, a disk reading device, an optical reading device, and a voice input device. You. Reference numeral 302 denotes a central processing unit (CPU), and reference numeral 303 denotes a storage device, which is constituted by a ROM (read only memory) or a RAM (random access memory), a combination thereof, or a disk device. An output device 304 includes one or more combinations of a display, a printer, a disk writing device, an optical writing device, an audio output device, and the like. Reference numeral 305 denotes a reading device, such as a floppy disk drive, CD-ROM drive, or magnetic tape reader.
Or a plurality of combinations. Reference numeral 306 denotes a recording medium that can be read by the reading device 305, and includes a floppy disk, a CD-ROM, a magnetic tape, and the like.

In this apparatus, the input unit 100 is realized by the input device 301, the co-occurrence information storage unit 103 is realized by the storage device 303, and the co-occurrence word extraction unit 102 / co-occurrence information search unit 104 / co-occurrence information registration Unit 105 / Translation unit 10
6. The control unit 108 is realized by the CPU 302, and the output unit 107 is realized by the output device 304.

In this embodiment, the CPU 302
Performs various controls by executing a control program stored in a storage device 303 such as a ROM in advance. The control program is stored in a computer-readable recording medium (for example, a CD-ROM). In such a form, the CPU 302
The control program is read from a recording medium via a reading device 305 (for example, a CD-ROM drive), and the read control program is loaded into a storage device 303 such as a RAM or a hard disk, and then the control program is executed. With such an embodiment, the present invention can be easily realized by a general-purpose computer.

Next, an operation flow of the machine translation apparatus according to the present embodiment will be described. When performing translation, the user inputs the translation function selection instruction 2a into the input unit 100, and then inputs the original text 1 to be translated. When receiving the translation function selection instruction 2a from the input unit 100, the control unit 108 enters the translation operation state. When receiving the original sentence 1, the control unit 108 sends the original sentence 1 to the co-occurrence word extraction unit 102, and the preposition phrase co-occurrence word 3 Is extracted. Next, the control unit 108 sends the preposition phrase co-occurrence word 3 to the co-occurrence information search unit 104, and
The preposition phrase co-occurrence information 3a corresponding to the preposition phrase co-occurrence word 3 is retrieved and extracted from 3a and the user co-occurrence information list 103b. Next, the control unit 108 sends the preposition phrase co-occurrence information 3a and the original sentence 1 to the translating unit 106, and obtains the translated sentence 4 of the target language.

Finally, the control unit 108 sends the translated sentence 4 to the output device 107, and outputs the translated sentence 4.

If the preamble phrase is not included in the original sentence 1 when the original sentence 1 is input to the input unit 100, the control unit 108 sends the original sentence 1 to the translating unit 106 to obtain the translated sentence 4. After that, the translation sentence 4 is sent to the output unit 107 and output.

For example, as an original sentence 1, the English sentence "I watched a
When “chick with a telescope.” is input, the control unit 108 starts from the original sentence 1 and the preposition phrase co-occurrence word 3 “watch, chick,
with, telescope ”is extracted. At this point, the prepositional phrase is adverbial ("with a telescope" becomes "watched"
) Or adjective usage ("with a telescope" becomes "ac
hick ") has not been determined. Next, the control unit 1
08 searches for preposition phrase co-occurrence information corresponding to the preposition phrase co-occurrence word from the common co-occurrence information list 103a and the user co-occurrence information list 103b stored in the co-occurrence information storage unit. Ki 3a "watch, chick, with, te
lescope, adverbial usage. " As shown in FIG. 2, the common co-occurrence information list includes, as shown in FIG. 2, a qualified word candidate to which the preposition phrase of the adverbial usage depends, a qualified word candidate to which the preposition phrase of the adjective usage depends, a preposition of the prepositional phrase, It consists of a set of elements consisting of four words and usages: main nouns, prepositional phrase usage. Therefore, when the preposition phrase co-occurrence information is retrieved and extracted, the usage of the preposition phrase is determined to be an adjective usage or an adverb usage, so that the ambiguity of the qualified phrase related to the preposition phrase is eliminated and the qualified phrase is correct. It is determined. Next, the control unit 108 converts the preposition phrase co-occurrence information 3a and the original sentence 1 into the translation unit 1
Then, the translation unit 106 translates the original sentence based on the information of the prepositional phrase usage of the prepositional phrase co-occurrence information 3a, and obtains a translated sentence 4 "I saw the chick with a telescope." If there is no information of the co-occurrence information 3a, the translation 4 has two possibilities, "I saw a chick with a telescope." And "I saw a chick with a telescope." The translated sentence 4 is uniquely determined by referring to the preposition phrase co-occurrence information 3a, and a correct translated sentence can be obtained.

When registering co-occurrence information in the user co-occurrence list, the user first inputs a registration function selection instruction 2b to the input unit 100, and then inputs preposition phrase co-occurrence information 5 to be registered. When receiving the registration function selection instruction 2b from the input unit 100, the control unit 108 enters a registration operation state. When receiving the preposition phrase co-occurrence information 5, the control unit 108 sends the preposition phrase co-occurrence information 5 to the co-occurrence information registration unit 105, and The phrase co-occurrence information 5 is registered in the user co-occurrence information list 103b.

For example, the English sentence "I saw chicks in the nes"
If the preposition phrase co-occurrence information relating to “t.” is not registered and is not correctly translated, the user first inputs the registration function selection instruction 2b to the input unit 100, and then the preposition phrase co-occurrence information 5 “see, By inputting "chick, in, nest, adjective usage", preposition phrase co-occurrence information can be registered in the user co-occurrence information list 103b. At this time, in order to improve the convenience for the user, for example, a keyboard and a mouse in the input unit, a display in the output unit,
A preposition co-occurrence information input window as shown in FIG. 4 may be displayed on the display, and the input may be made by a keyboard and a mouse. By registering and supplementing the preposition phrase co-occurrence information missing in the co-occurrence information list in the user co-occurrence information list 103b, for example,
Next, the user reads the English sentence "He saw a black chick in the big
When trying to translate “nest.”, the co-occurrence information search unit 104
Found the preposition phrase co-occurrence information 5 "see, chick, in, nest, adjective usage" supplemented last time in the user co-occurrence information list 103b, and translated the correct translation " I saw. "

As described above, according to the present embodiment, by searching for the preposition phrase co-occurrence information from each co-occurrence information list, the ambiguity of the qualified phrase of the preposition phrase is eliminated, and the translation accuracy is improved. Also, a user co-occurrence information list 103 that can be additionally written
By providing b, the user can supplement the preposition phrase co-occurrence information that is lacking in the co-occurrence information list, and by performing the supplement, the translation accuracy is further improved, and a unique expression for each user is provided. The translation accuracy is improved in accordance with. In the present embodiment, the source language is exemplified as English and the target language is exemplified as Japanese, but the source language and the target language are not limited to these.

(Embodiment 2) FIG. 5 is a functional block diagram of a machine translation apparatus according to Embodiment 2 of the present invention. In FIG. 5, the components described in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. According to the present embodiment, in the machine translation apparatus according to the first embodiment, a function of generating preposition phrase co-occurrence information from a source language sentence (usage information additional sentence) in which a preposition of a preposition phrase is attached with additional information regarding preposition phrase usage. By providing the co-occurrence information creating unit 401 having the above, the operability of the user in the preposition phrase co-occurrence information registration operation is improved.

An apparatus block diagram of the machine translation apparatus according to the present embodiment has the form shown in FIG. In this device, the input unit 100 is realized by the input device 301, the co-occurrence information storage unit 103 is realized by the storage device 303,
Co-occurrence word extraction unit 102 / co-occurrence information search unit 104 / co-occurrence information registration unit 105 / translation unit 106 / co-occurrence information creation unit 401
The control unit 108 is realized by the CPU 302 and the output unit 1
07 is realized by the output device 304.

In this embodiment, the CPU 302
Performs various controls by executing a control program stored in a storage device 303 such as a ROM in advance. The control program is stored in a computer-readable recording medium (for example, a CD-ROM). In such a form, the CPU 302
The control program is read from a recording medium via a reading device 305 (for example, a CD-ROM drive), and the read control program is loaded into a storage device 303 such as a RAM or a hard disk, and then the control program is executed. With such an embodiment, the present invention can be easily realized by a general-purpose computer.

[0033] For example, when a user writes an English sentence "I saw chicks in
When the preposition phrase co-occurrence information “see, chick, in nest, adjective usage” relating to the preposition phrase “in the nest.” of the nest. is to be registered in the user co-occurrence information list 103b, first, it is registered in the input unit 100. The function selection instruction 2b is input, and then the usage information addition sentence 6 “I saw chicks ppn ＾ int
henest. " Here, “ppn ＾” is additional information to be added to the preposition of the preposition phrase in the adjective usage, and “ppv
“＾” indicates additional information to be added to the preposition of the preposition phrase in the adverb usage. The control unit 108 enters a registration operation state when the registration function selection instruction 2b is received from the input unit 100, and then receives the usage information additional sentence 6 and, upon receipt of the usage information addition sentence 6, transmits it to the co-occurrence information creation unit 201
To obtain prepositional phrase co-occurrence information 5. Co-occurrence information creation unit 40
1 receives the usage information addition sentence 6 and extracts a qualified word of the preposition phrase of the adverbial usage, a qualified word of the preposition phrase of the prepositional phrase usage, a preposition of the preposition phrase, and a main noun of the preposition phrase. If each extracted word is inflected, it is returned to the original form, if it is plural, it is returned to the singular, the preposition phrase usage is determined from the additional information, the preposition phrase co-occurrence information 5 is created, and the return. Finally, the control unit 108 sends the preposition phrase co-occurrence information 5 to the co-occurrence information registration unit 105 and registers it in the user co-occurrence information list 103b.

As described above, according to the present embodiment, the co-occurrence information creating unit 4 for creating co-occurrence information from the usage information additional sentence
01, the preposition phrase co-occurrence is extracted from the original sentence, the extracted preposition phrase co-occurrence is converted from the inflected form or plural form to the singular original form, and the preposition phrase co-occurrence information 5 is extracted. It is possible to automate the creation and the operability of the user when registering the prepositional phrase co-occurrence information is improved. In the present embodiment, the source language is exemplified as English and the target language is exemplified as Japanese, but the source language and the target language are not limited to these.

(Embodiment 3) FIG. 6 is a functional block diagram of a machine translation apparatus according to Embodiment 3 of the present invention. In FIG. 6, the components described in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, a co-occurrence information temporary storage unit 501 that temporarily stores prepositional phrase co-occurrence information of an original sentence and a usage of a preposition phrase are changed by a user's change instruction in the machine translation apparatus of the first embodiment. The usage changing unit 502, a display unit 107a having a display surface 107b for displaying information as one of the output units, and an instruction unit 1 for specifying a specific position on the display surface 107b as one of the input units
By providing 00a, the operability of the user in the prepositional phrase co-occurrence information registration operation is improved.

FIG. 7 is a device block diagram of a machine translation device according to the third embodiment of the present invention.

In FIG. 7, the same reference numerals are given to the devices described in the first embodiment, and the description is omitted. 301
A pointing device a is one of the input devices, and is configured by a pointing device such as a mouse, a touch panel, and a trackball. A display device 304a is one of the output devices, and includes a display and the like. A reading device 305 includes one or more combinations of a floppy disk drive, a CD-ROM drive, a magnetic tape reader, and the like. Reference numeral 306 denotes a recording medium that can be read by the reading device 305, and includes a floppy disk, a CD-ROM, a magnetic tape, and the like.

The input unit 100 is realized by the input device 301, and the instruction unit 100a is realized by the instruction device 301a, and the co-occurrence information storage unit 103 and the co-occurrence information temporary storage unit 501 are used.
Is realized by the storage device 303, and the co-occurrence word extraction unit 102
A co-occurrence information search unit 104; a co-occurrence information registration unit 105; a translation unit 106; a usage change unit 502;
02, and the display unit 107a includes a display device 304
a, and the output unit 107 is realized by the output device 304.

In the present embodiment, the CPU 302
Performs various controls by executing a control program stored in a storage device 303 such as a ROM in advance. The control program is stored in a computer-readable recording medium (for example, a CD-ROM). In such a form, the CPU 302
The control program is read from a recording medium via a reading device 305 (for example, a CD-ROM drive), and the read control program is loaded into a storage device 303 such as a RAM or a hard disk, and then the control program is executed. With such an embodiment, the present invention can be easily realized by a general-purpose computer.

Hereinafter, the operation of the machine translation apparatus according to the present embodiment will be described. First, the user enters the input unit 10
Enter the original sentence 1 you want to translate into 0. When receiving the original sentence 1 from the input unit 100, the control unit 108 sends the original sentence 1 to the co-occurrence word extraction unit 102, and extracts the preposition phrase co-occurrence word 3 from the original sentence 1. Next, the control unit 108 sends the preposition phrase co-occurrence word 3 to the co-occurrence information search unit 104, and extracts the preposition phrase co-occurrence word 3 from the common co-occurrence information list 103a and the user co-occurrence information list 103b.
Is retrieved and extracted. Next, the control unit 108 sends the preposition phrase co-occurrence information 3a and the original sentence 1 to the translating unit 106, and obtains the translated sentence 4 of the target language. Next, the control unit 108 displays the original sentence 1 and the translated sentence 4 on the display unit 107a.
To display the translated sentence 4. When the user reads the displayed translation result and determines that there is a possibility that the usage of the preposition phrase is incorrect, the user designates the preposition of the corresponding preposition phrase displayed on the display surface 107b by the instruction unit 100a. . The control unit 108 controls the indication unit 100a on the display surface 107b.
The preposition phrase co-occurrence information 7 of the preposition phrase displayed at the position indicated by the above is read out from the co-occurrence information temporary storage unit 501,
The display unit 107 displays the current usage of the preposition phrase and other usages.
Display in a. The user instructs the display part of the preposition phrase usage that seems to be correct by the instruction unit 100a. The control unit 108 reads the preposition phrase usage 8 displayed at the position indicated by the instruction unit 100a, sends the preposition phrase co-occurrence information 7 and the preposition phrase usage 8 to the usage change unit 502, and reads the preposition phrase co-occurrence information 7 The preposition phrase usage is changed to the preposition phrase usage 8, and the changed preposition phrase co-occurrence information 7a is stored in the co-occurrence information registration unit 105.
To the user co-occurrence information list 103b,
And the preposition phrase co-occurrence information 7a to the translation unit 106, and the translated sentence 4a translated by the preposition phrase usage 8 specified by the user.
Is acquired and the translated sentence 4a is sent to the display unit 107a for display.

For example, when a mouse is used as the instruction unit 100a and a display is used as the display unit 107a, the operation of registering the preposition phrase co-occurrence information is as follows. First, when the original sentence 1 is input, translation is performed. As shown in FIG. 8, the corresponding sentences of the original sentence 1 and the translated sentence 4 are displayed side by side for easy understanding. When the user reads the translation result displayed and determines that the usage of the preposition phrase may be incorrect, the user moves the mouse cursor to the preposition of the corresponding preposition phrase displayed on the display, and Click the mouse button. The control unit 108 controls the mouse 10
When a mouse event is received from 0a, the preposition phrase co-occurrence information 7 of the preposition phrase displayed at the position of the mouse cursor is read from the co-occurrence information temporary storage unit 501, and the usage of the preposition phrase is displayed on the display (FIG. 9). reference). The user moves the mouse cursor to the position of the preposition phrase usage that seems to be correct and clicks the mouse button (FIG. 10).
reference). The control unit reads the preposition phrase usage 8 displayed at the position of the mouse cursor, sends the preposition phrase co-occurrence information 7 and the preposition phrase usage 8 to the usage change unit, and converts the preposition phrase usage of the preposition phrase co-occurrence information 7 to the preposition phrase usage. 8 and sends the changed preposition phrase co-occurrence information 7a to the co-occurrence information registration unit 105 to register it in the user co-occurrence information list 103b, and sends the original text 1 and the preposition phrase co-occurrence information 7a to the translation unit 106 for use. The translated sentence 4a translated by the preposition phrase usage 8 specified by the person,
The translated sentence 4a is displayed on the display (see FIG. 11).

As described above, according to the present embodiment, the instructing unit 100 a and the output unit 107 are one of the input units 100.
The display unit 107a and the co-occurrence information temporary storage unit 50
1 and the usage change unit 502, the operation of registering the preposition phrase co-occurrence information in the user co-occurrence information list is simplified, and the operability of the user at the time of registering the preposition phrase co-occurrence information is improved. In this embodiment, the source language is English,
Although the target language is exemplified as Japanese, the source language and the target language are not limited to these.

[0043]

As described above, according to the machine translation device of the first aspect, the machine translation device translates a source language sentence into a target language sentence, and relates to a destination of a preposition phrase in the source language. A common co-occurrence information list for storing prepositional phrase co-occurrence information,
An additional registrable user co-occurrence information list that stores prepositional phrase co-occurrence information related to the destination of prepositional phrases in the source language registered by the user, and a co-occurrence that registers prepositional phrase co-occurrence information in the user co-occurrence information list An information registration unit, a co-occurrence word extraction unit that extracts a preposition phrase co-occurrence word relating to a destination of a preposition phrase in the source language of the source language, and a preposition phrase co-occurrence information corresponding to the preposition phrase co-occurrence information from the co-occurrence information list By providing a co-occurrence information search unit for searching and a translating unit for translating the original text by determining the qualifying phrase of the preposition phrase based on the preposition phrase co-occurrence information, the ambiguity of the modification destination of the preposition phrase is eliminated and translation is performed. The accuracy is improved, and the user can supplement the preposition phrase co-occurrence information that is lacking in the co-occurrence information list, and by performing the supplement, the translation accuracy is further improved, and the expression is unique to each user. Correspondence improves translation accuracy Advantageous effect that can be obtained.

According to a second aspect of the present invention, there is provided a machine translation apparatus according to the first aspect, further comprising a co-occurrence information creating unit for creating preposition phrase co-occurrence information from the usage information additional sentence of the source language. Therefore, when registering the prepositional phrase co-occurrence information in the user co-occurrence information list, extraction of the prepositional phrase co-occurrence word from the original sentence, and singular original form from the inflected form or plural form of each extracted prepositional phrase co-occurrence word And the creation of prepositional phrase co-occurrence information can be automated, and an advantageous effect that user operability at the time of registration of prepositional phrase co-occurrence information is improved is obtained.

According to a third aspect of the present invention, there is provided the machine translation apparatus according to the first aspect, further comprising: a display unit having a display surface for displaying information; and an instruction unit for designating a specific position on the display surface. A co-occurrence information temporary storage unit that temporarily stores preposition phrase co-occurrence information, and a usage changing unit that changes the usage of the preposition phrase according to a user's instruction to change the usage of the preposition phrase. When the co-occurrence information is registered in the user co-occurrence information list, the operation of registering the prepositional phrase co-occurrence information in the user co-occurrence information list is simplified, and the operability of the user when registering the prepositional phrase co-occurrence information is improved. The advantageous effect described above can be obtained.

According to a fourth aspect of the present invention, there is provided a machine translation method for translating a source language sentence into a target language sentence, comprising: A co-occurrence word extraction process for extracting phrase co-occurrence words, a pre-prepared common co-occurrence information list storing preposition phrase co-occurrence information related to the destination of the preposition phrase in the source language, and the source language registered by the user A co-occurrence information search process for searching for a preposition / phrase co-occurrence information corresponding to a preposition / phrase co-occurrence word from an additionally-registerable user co-occurrence information list in which preposition / phrase co-occurrence information relating to a destination of a preposition / phrase is stored; The translation process of determining the qualifying phrase of the preposition phrase based on the preposition phrase co-occurrence information and translating the original text, thereby eliminating the ambiguity of the modification destination of the preposition phrase and improving the translation accuracy. Is obtained.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a machine translation device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an internal state of a co-occurrence information list according to the first embodiment of the present invention.

FIG. 3 is a device block diagram of a machine translation device according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a prepositional phrase co-occurrence information input screen according to the first embodiment of the present invention;

FIG. 5 is a functional block diagram of a machine translation device according to a second embodiment of the present invention.

FIG. 6 is a functional block diagram of a machine translation device according to a third embodiment of the present invention.

FIG. 7 is a device block diagram of a machine translation device according to a third embodiment of the present invention.

FIG. 8 is a diagram showing a translation result display screen according to the third embodiment of the present invention.

FIG. 9 is a diagram showing a preposition phrase usage display screen according to Embodiment 3 of the present invention.

FIG. 10 is a diagram showing a preposition phrase usage change instruction display screen according to the third embodiment of the present invention.

FIG. 11 is a diagram showing a display screen after a change of prepositional phrase usage according to Embodiment 3 of the present invention.

[Explanation of symbols]

 Reference Signs List 100 input unit 100a instruction unit 102 co-occurrence word extraction unit 103 co-occurrence information storage unit 103a common co-occurrence information list 103b user co-occurrence information list 104 co-occurrence information search unit 105 co-occurrence information registration unit 106 translation unit 107 output unit 107a display Unit 108 control unit 301 input device 301a pointing device 302 CPU 303 storage device 304 output device 304a display device 305 reading device 306 recording medium 501 co-occurrence information temporary storage unit 502 usage change unit

Claims (4)

[Claims] 1. A machine translator for translating a source language sentence into a target language sentence, comprising: a common co-occurrence information list storing preposition phrase co-occurrence information relating to a destination of a preposition phrase in the source language; An additional registrable user co-occurrence information list that stores preposition phrase co-occurrence information related to the destination of the prepositional phrase in the source language registered by the co-occurrence information that registers prepositional phrase co-occurrence information in the user co-occurrence information list A registration unit, a co-occurrence word extraction unit for extracting a preposition phrase co-occurrence word relating to a destination of a preposition phrase in the source sentence of the source language, and a co-occurrence information list of preposition phrase co-occurrence information corresponding to the preposition phrase co-occurrence word A machine translation apparatus comprising: a co-occurrence information search unit that searches for a pre-phrase phrase from a search term; and a translation unit that determines a qualified phrase related to the preposition phrase based on the preposition phrase co-occurrence information and translates an original sentence. 2. The machine translation apparatus according to claim 1, further comprising a co-occurrence information creating unit for creating preposition phrase co-occurrence information from the usage information additional sentence of the source language. 3. A display unit having a display surface for displaying information,
An instruction unit for indicating a specific position on the display surface; a co-occurrence information temporary storage unit for temporarily storing the preposition phrase co-occurrence information; and a usage of the preposition phrase according to a user's instruction to change the preposition phrase usage. 2. The machine translation device according to claim 1, further comprising a usage changing unit that changes the translation. 4. A machine translation method for translating a source language sentence into a target language sentence, comprising: a co-occurrence word extraction step of extracting a preposition phrase co-occurrence word relating to a destination of a preposition phrase in the source language original sentence; A pre-prepared common co-occurrence information list that stores prepositional phrase co-occurrence information relating to the source language preposition phrase and the preposition phrase co-occurrence information relating to the source language preposition phrase that is registered by the user are stored. A co-occurrence information search step of searching for a preposition phrase co-occurrence information corresponding to the preposition phrase co-occurrence word from the additionally registered user co-occurrence information list, and a subject of the preposition phrase according to the preposition phrase co-occurrence information. A translation process for determining a modifier and translating the original text.