JP2806352B2 - Dictionary maintenance equipment for machine translation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to the field of natural language processing,
In particular, the present invention relates to a translation dictionary maintenance device for machine translation.

[0002]

2. Description of the Related Art Maintenance of translation dictionaries is indispensable for improving the accuracy of machine translation, and various dictionary maintenance devices have been proposed as tools therefor.

For example, from Nikkei McGraw-Hill, Showa 60
For example, in the case of registering the word “communicator” in a dictionary for a machine translation system that translates Japanese into English, the pages 146 to 151 of “Nikkei Electronics” issued on December 2, 2013 The translation "Commu
A device has been proposed that, when "nicator" is input, the system asks for information necessary for translation, such as its part of speech, and if a user selects a menu in a form that answers the question, a dictionary of unknown words can be registered.

In Japanese Patent Application No. 4-42367, a test original text is machine-translated using a translation dictionary, and bilingual information including the obtained translated text is analyzed to extract syntax pattern information. The extracted syntax pattern information is presented to the user to be corrected as necessary, the corrected syntax pattern information is analyzed, and the content is reflected in the translation dictionary, so that the user can display the syntax displayed on the display. An apparatus has been proposed in which dictionary information reflecting the contents can be registered simply by making necessary corrections to the sentence pattern, translated word, and translated sentence in the pattern information.

[0005]

As described above, various devices have been conventionally proposed to assist the user in maintaining the translation dictionary. However, all of the devices are one-way translation from language A to language B. It was a technology related to translation dictionaries. However, in recent years, due to the large size of the dictionary and the diversification of languages for machine translation, translation dictionaries from language A to language B and translations from language B to language A There is a need for a technology that can efficiently maintain a plurality of dictionaries, such as a dictionary for use.

It is an object of the present invention to provide a machine translation dictionary maintenance device capable of efficiently maintaining a plurality of translation dictionaries having different source and target languages.

In the past, words handled by dictionaries were mainly word-based, but due to the development of more practical systems in recent years, words such as phrase-based words composed of a plurality of words have become more complex. It is also required to handle vocabulary with a simple structure.

It is another object of the present invention to provide a machine translation dictionary maintenance apparatus capable of efficiently registering and managing phrases in a phrase unit including a plurality of words.

[0009]

SUMMARY OF THE INVENTION According to the present invention, there is provided a machine translation dictionary maintenance apparatus comprising: a first dictionary unit for translating a first language into a second language, and vice versa; An apparatus for maintaining a second dictionary unit for translation, wherein the dictionary information including a headword of a first language and a translated word of a second language input from an input unit is registered in the first dictionary unit. A first dictionary registration unit, and a search unit that searches the dictionary information of the second dictionary unit related to the dictionary information registered in the first dictionary unit by the first dictionary registration unit and displays the dictionary information on the display unit; Registering dictionary information including the input headword of the second language and the translation of the first language in the second dictionary unit;
Dictionary registration means , wherein the second dictionary registration means is
Dictionary information registered in the first dictionary unit by first dictionary registration means
The dictionary information having the translated word in it as a headword is stored in the second dictionary.
Search and display from the section to find such dictionary information
If not, the first dictionary registering means sets the first dictionary
That have a headword in the dictionary information registered as a translation
A structure for searching and displaying book information from the second dictionary unit.
Characterized in that it.

[0010]

[0011]

In the machine translation dictionary maintenance apparatus having the above-described configuration, the user uses the first dictionary registration unit to store the dictionary including the first language headword and the second language translation in the first dictionary section. When the information is registered, the second dictionary registration unit searches for the dictionary information of the second dictionary unit related to the dictionary information registered in the first dictionary unit, displays the dictionary information on the display unit, and inputs the dictionary information from the input unit. By registering dictionary information including a headword in the second language and a translation in the first language in the second dictionary unit,
At the same time that the dictionary information is registered in the translation dictionary from the first language to the second language, reference to the corresponding dictionary information of the translation dictionary from the second language to the first language, which is a language pair in the opposite direction, is performed. It is possible, and if necessary, the dictionary information of the translation dictionary in the reverse direction can be updated. As a result, a plurality of different translation dictionaries for symmetrically translating the source language and the target language can be updated at the same timing, and the quality of both translations is improved uniformly.

[0013] Further, the machine translation dictionary maintenance device of the present invention provides a first translation machine for translating from a first language to a second language.
An apparatus for maintaining a dictionary section and, conversely, a second dictionary section for translating from a second language to a first language, comprising a headword for the first language and a translated word for the second language input from the input means. A first dictionary registration unit for registering dictionary information including the following in the first dictionary unit, dividing a word in a phrase unit including a plurality of words into words, and identifying a word serving as a search key from the words A word recognition unit that searches for dictionary information having a translation word in the dictionary information registered in the first dictionary unit as a headword from the second dictionary unit and displays the dictionary information on the display unit; If such dictionary information cannot be found, the dictionary information containing all of the key words of the search returned by passing the translated words in the dictionary information to the word recognition means in one headword is stored in the second dictionary. Section and display it on the display means, and Wherein the dictionary information containing the headword second language input from the input means and a translation of the first language second
And a second dictionary registering means for registering in the dictionary section.

[0014] Further, the second dictionary registering means, when the dictionary information including all the key words of the search returned from the word recognition means in one headword cannot be found,
The first dictionary registering unit stores dictionary information having a headword in the dictionary information registered in the first dictionary unit as a translation word in the second dictionary unit.
It is characterized in that it has a configuration for searching and displaying from the dictionary section.

In the machine translation dictionary maintenance apparatus having such a configuration, the user uses the first dictionary registration unit to store the dictionary containing the first language headword and the second language translation in the first dictionary section. When the information is registered, the second dictionary registration unit first searches the second dictionary unit for dictionary information having a translation word in the dictionary information registered in the first dictionary unit as a headword, and displays the dictionary information on the display unit. When such dictionary information cannot be found, the dictionary information including all of the key words of the search returned by passing the translated word in the dictionary information to the word recognition means in one entry word from the second dictionary unit. Search and display on display means. For example, when dictionary information including a headword "tall" and a translation word "tall" is registered in the first dictionary section,
If there is no dictionary information with “tall” as a headword in the second dictionary part, “tall” is divided into words “tall”, “no”, and “tall” by word recognition means. At the same time, for example, "tall" and "high" are identified as the key words of the search from the words, and the second dictionary registration means stores the dictionary information having the headword including both "tall" and "high" in the second dictionary. To search from the dictionary part, if dictionary information having “tall”, which is a variant of “tall”, as a headword is registered in the second dictionary part, it is searched and displayed. For this reason, the correspondence of the different notations among a plurality of translation dictionaries becomes clear, and it is easy to match the notation of one dictionary part and to incorporate the other notation into both, and it is possible to use the phrase unit vocabulary. Different notations can be registered and managed efficiently.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention. The machine translation dictionary maintenance apparatus according to the present embodiment includes a first dictionary unit 2 that is a machine translation dictionary for translating from language A to language B, and a conversely, a translation unit for translating from language B to language A. An apparatus for efficiently maintaining a second dictionary unit 3 which is a machine translation dictionary, including an input unit 1 such as a keyboard for receiving various instructions and character string inputs from a user, and information to be presented to the user. A display means 5 such as a CRT or the like, which displays information, and exchanges various instructions and data with the user via the input means 1 and the display means 5 to perform maintenance work of the first dictionary unit 2 and the second dictionary unit 3 And a dictionary maintenance unit 4.

The dictionary maintenance unit 4 includes an input unit 1
A first dictionary registration unit 41 for registering information necessary for machine translation in the first dictionary unit 2 in accordance with the update data input from
The first dictionary registration unit 41 searches the dictionary contents of the second dictionary unit 3 related to the information registered in the first dictionary unit 2 and displays the contents.
And registers information necessary for machine translation in the second dictionary unit 3 in accordance with the update data input from the input means 1.
Dictionary registration means 42.

FIG. 2 is a flowchart showing an example of the processing of the dictionary maintenance section 4 in the embodiment of FIG.
It is composed of step1 to step7. Where s
Steps 1 and 7 correspond to steps executed by the first dictionary registration unit 41, and steps 2 to 5 correspond to steps executed by the second dictionary registration unit 42, respectively.

The operation of the embodiment shown in FIG. 1 will be described below with reference to the processing flow shown in FIG. In the following, an example will be described in which the first dictionary unit 2 is a dictionary for a machine translation system that translates from English to Japanese, and the second dictionary unit 3 is a similar dictionary that translates from Japanese to English. I do. Of course, it goes without saying that the dictionary targeted by the present invention is not limited to only these languages.

The display means 5 is provided by the first dictionary registration means 41.
When the user inputs information necessary for translation, such as a headword to be registered in the first dictionary unit 2 and a corresponding translation word, from the input unit 1 on the registration screen displayed in the dictionary maintenance unit 4, It is transmitted to the first dictionary registration means 41. The first dictionary registration unit 41 receives the information from the input unit 1, and based on the information, registers the headword and the corresponding translation and information necessary for translation in the first dictionary unit 2 (step 1).

FIG. 3 is a display example of a registration screen displayed on the display means 5 by the first dictionary registration means 41. The user needs to input a headword "tall" and a corresponding word "tall" and translate it. Each part of speech is input as important information. In this display example, the “registration mode” at the lower right of the display screen indicates that the input by the user on this screen is reflected in the registration in the dictionary unit, and is selected by the user in advance. is there. In FIG. 3, “new” and “overwrite” are buttons for instructing whether to newly register the dictionary content edited by the user in the first dictionary unit 2 or to overwrite the original dictionary content.

FIG. 4 shows an example of the logical structure of the first dictionary unit 2 after the first dictionary registration unit 41 registers necessary information in the first dictionary unit 2 according to the registration screen of FIG. , The headword "tall" and the corresponding translation "tall"
Is registered. In FIG. 4, “entry word 1”, “translation word 1”, “translation word n”, etc.
Represents any headword or translation.

When the first dictionary registration means 41 completes the registration processing to the first dictionary section 2, the information registered this time is transmitted to the second dictionary registration means 42. In this embodiment, a pair of a headword and its translation is transmitted. If the headword has a plurality of translations, one of the translations is selected and a pair of the translation and the headword is transmitted.

The second dictionary registration means 42 searches the dictionary contents of the second dictionary section 3 related to the transmitted information. One of the features of this embodiment is that a pair of a headword of language A and a translated word of language B registered in the first dictionary unit 2 for translation from language A to language B is used as a search for related information. Language A from B
It is to check whether or not it is registered as a headword of language B and a translation of language A in the second dictionary unit 3 for translation into language. Therefore, in step 2, first, the second dictionary registration unit 42 checks whether or not the translated word registered in the first dictionary unit 2 is registered in the second dictionary unit 3 as a headword. For example, when the registration as shown in FIG. 4 is performed for the first dictionary unit 2, the second dictionary registration unit 42 determines that “tall” registered as a translation in the first dictionary unit 2 (2) It is searched whether or not it is registered as a headword of the dictionary unit 3.

FIG. 5 shows an example of the logical structure of the second dictionary unit 3. As described above, when the headword “tall” and the corresponding translation 1 are registered in the second dictionary unit 3, the second dictionary registration unit 42 reads the dictionary content including the corresponding headword and its translation. Is read, and the process proceeds to step 3. On the other hand, if there is no corresponding headword, step 6
Proceed to. The description of step 6 will be described later.

In step 3, the second dictionary registration means 42
Displays on the display 5 the dictionary contents such as the searched headword and its translation.

FIG. 6 shows a display example in step 3. In this example, the translated word "high" and each part of speech are displayed for the headword "tall". FIG.
In the "display mode" at the lower right of the display screen means that the input of the character string by the user is not accepted,
When the process proceeds from step 2 to step 3, this mode is automatically set.

Next, the second dictionary registration means 42 executes step 3
The user is asked whether to correct or add a translation to the dictionary content displayed in (4). The user checks the displayed dictionary contents and issues an instruction if correction or additional registration is necessary. When correcting or adding a translation, the user changes the “display mode” in FIG. 6 to the “registration mode”.
Switch to As a result, the process proceeds to step 5.
On the other hand, if no correction or additional registration is performed, another key operation is performed, and the process proceeds to step 7.

As described above, the user determines whether to make corrections or additional registrations. This is because language B, which is appropriate as a translation for language A, is not always appropriate as a headword corresponding to language A.

It should be noted that the term "additional registration" includes a case where a headword and a translated word are completely newly registered. In the above example, it is of course possible to newly register “tall” as a headword of the second dictionary unit 3. As in the example of “tall”, when registering a phrase-based vocabulary composed of a plurality of words, it is necessary to first collect such vocabulary, but as shown in this embodiment, By comparing the correspondence between headwords and translated words in each dictionary that is intended for language pairs but aims to translate in the opposite direction, such a phrase-by-phrase word can also be obtained. The burden on the barrel user can be reduced.

Next, in step 5, the second dictionary registration means 4
Reference numeral 2 accepts an instruction from the user for the dictionary contents displayed in step 3, and corrects or additionally registers a translated word in the second dictionary unit 3.

FIG. 7 shows an example of a display on which the correction in step 5 has been performed. In FIG. 7, the mode is designated as “registration mode” by the user, and the translation “hig
"h" has been corrected to "tall". After such correction, if the user decides whether to register the dictionary content as a new heading or to update the original dictionary content, and presses a “new” button or an “overwrite” button, the second
The dictionary registration unit 42 updates the second dictionary unit 3 accordingly. Thereafter, the processing proceeds to step 7.

On the other hand, step 6 is a step that bears one of the features of the present embodiment, similarly to step 2. step
6, in the same way as in step 2, the second dictionary registration unit 42
Based on the information registered in the first dictionary unit 2 in step 1, the second
Search the dictionary section 3. The difference from step 2 is that
In p6, it is checked whether or not the headword registered in the first dictionary unit 2 is registered as a translated word in the second dictionary unit 3. In other words, the purpose of step 6 is to use the headword of language A in the first dictionary unit 2 as a search key, and to be symmetrical with the headword of language A and the translation of language B registered in the first dictionary unit 2. That is, a search is made from the second dictionary unit 3 for a headword of a certain language B and a translated word of the language A. Therefore, for example, in the case of the example of FIG. 3, it is searched whether or not “tall” registered as a headword in the first dictionary unit 2 exists in the translated word in the second dictionary unit 3.

FIG. 8 shows another example of the logical structure of the second dictionary unit 3. As described above, when the translated word “tall” is registered in the second dictionary unit 3 corresponding to a certain headword n,
The second dictionary registration means 42 reads out the dictionary contents such as the corresponding translated word "tall" and its headword n, and proceeds to step 3. On the other hand, if there is no corresponding translation, step
Proceed to 4.

In step 7, the control returns to the first dictionary registration means 41 again, and the first dictionary registration means 41 checks whether or not there is another translated word corresponding to the headword registered in the first dictionary section 2. If there is another translated word, the pair of the translated word and the headword is transmitted to the second dictionary registration unit 42. As a result, the process returns to step 2, and the above-described process is repeated. If there is no other translation, the registration work is terminated.

Returning to step 2 is a case where, in the present embodiment, a polysemy in which the headword to be registered and the corresponding translated word are not one-to-one is registered.

FIG. 9 shows an example of such a polysemy word registration screen. In FIG. 9, the headword “book” is stored in the first dictionary unit 2.
In contrast, two translations, a translation of “book” when it is used in a noun and a translation of “reserve” when it is used in a verb, are registered. In the case of such a polysemy registration,
First, step 2 to step 6 are executed for the pair of the headword "book" and the translated word "book" in the first dictionary unit 2, and in step 7, another translated word "reserve" is registered for "book". Then, the process returns to step 2 and the step “book” and “reserve”
The processing from p2 to step6 is performed again.
As described above, the present embodiment can cope with a case where the headword registered in the first dictionary unit 2 is a polysemous word.

FIG. 10 is a block diagram of another embodiment of the present invention, wherein a word recognition means 43 is added to the dictionary maintenance section 4 in the machine translation dictionary maintenance apparatus of the embodiment of FIG. The word recognition unit 43 divides the translated word registered in the first dictionary unit 2 by the first dictionary registration unit 41 into words, and recognizes a key word for search from the words, and searches the second dictionary unit 3 Second key as a key when searching dictionary contents
This is a means given to the dictionary registration means 42.

FIG. 11 is a flowchart showing an example of the processing of the dictionary maintenance unit 4 in the embodiment of FIG. 10, and step 8 is added to the flowchart of FIG. This step 8 is executed by the second dictionary registration means 42.

The operation of the embodiment shown in FIG. 10 will be described below with reference to the processing flow shown in FIG. Here, as in the previous embodiment, the first dictionary unit 2 is a dictionary for a machine translation system for translating from English to Japanese, and the second dictionary unit 3 is a similar dictionary for translating from Japanese to English. An example will be described.

The display means 5 is provided by the first dictionary registration means 41.
For example, as shown in FIG. 3 described above, the user needs to translate the headword “tall” that the user wants to register in the first dictionary unit 2 and the corresponding translated word “tall” as shown in FIG. When the appropriate information is input, the first dictionary registration unit 41
Registers the headword and the corresponding translated word and information necessary for translation in the first dictionary unit 2 based on it (step 1),
The pair of the headword “tall” and its translation “tall” is transmitted to the second dictionary registration unit 42, and the second dictionary registration unit 42 stores the “tall” registered as a translation in the first dictionary unit 2. A search is made as to whether the entry is registered as a headword in the second dictionary unit 3 (step 2). Up to this point, it is the same as the embodiment shown in FIG. In step 2, as a result of the search,
The operation after the corresponding headword is found is the same as that of the embodiment shown in FIG.

If no corresponding headword is found as a result of the search in step 2, in this embodiment, the process proceeds to step 8 before proceeding to step 6, as shown in FIG. s
In step 8, a search is performed to determine whether a translated word including a search key as a result of word recognition of the translated word transmitted from the first dictionary registration unit 41 is included in the headword of the second dictionary unit 3. Specifically, the following processing is performed.

First, the second dictionary registration unit 42 sends the translated word “tall” transmitted from the first dictionary registration unit 41 to the word recognition unit 43. The word recognition unit 43 divides the translated word using the Japanese portion of the second dictionary unit 3. In this case,
"Tall" means "tall" like "tall / no / tall",
It is divided into three words, "no" and "high." Next, the word recognition means 43 selects the second one of these “tall”, “no”, and “high”.
The independent words "tall" and "high" are recognized as keys to be searched as the headwords of the dictionary unit 3, and these are notified to the second dictionary registration unit 42 as search keys. The second dictionary registration unit 42 searches for a headword that includes both “back” and “high” in the headwords of the second dictionary unit 3. Then, if the corresponding headword is searched, the process proceeds to step 3, and if not, the process proceeds to step 6.

FIG. 12 shows the result of the search in step 8
11 is a display example of dictionary contents in step 3 when a corresponding headword is found in the dictionary unit 3. In FIG. 12, the dictionary contents of the headword "tall" including a combination of "tall" and "tall" are displayed. Thus st
By providing ep8, it is possible to search as a headword in the second dictionary unit 3 for the word "tall" which is considered to have almost the same content as the translated word "tall" itself registered in the first dictionary unit 2. . The user corrects the translated words and the like to the second dictionary unit 3 by correcting the dictionary contents displayed in step 3 in the processing of step 4 and step 5 in the same manner as in the previous embodiment. Can be.

Further, in this example, since a different notation of "tall" of "tall" was found, as shown in the example of the registration screen in FIG. "Tall" can be added to the word "tall". In FIG. 13,
“,” In the entry word column is used as a symbol that connects different notations of the entry word.

Further, based on the fact that "tall", which is a variant of "tall", has been registered in the second dictionary section 3, "tall" is added to the first dictionary section 2 accordingly. It is also possible to additionally register “tall”, which is a variant notation of “. FIG.
4 shows an example of the registration screen at that time, and the step is again performed.
1 to the first dictionary unit 2 and returns to the previous step.
The headword “tall” in the second dictionary unit 3 found in FIG. 8 is added as a translation of “tall”.

As described above, even in the case of a word composed of a plurality of words such as “tall”, it is more difficult to register in the second dictionary 3 or update the dictionary contents together with the registration in the first dictionary 2. Flexible and effective.

In step 8 of this embodiment, a combination of independent words is used as a search key after a translated word is divided into words. For example, the criterion for determining this search key is that only the grammatical central word is used as a search key. For example, it can be determined according to the criteria desired by the user.

FIG. 15 is a block diagram showing an example of a hardware configuration of a computer system for implementing the machine translation dictionary maintenance apparatus of the present invention. The computer system of this example includes a CPU 10, a memory 12, a dictionary maintenance memory 13, an input device 14, a first dictionary 15, a second dictionary 16, and a display 17 connected to a bus 11. . The input device 14 is a device such as a keyboard or a mouse, and corresponds to the input means 1 in FIGS. The display device 17 is a device such as a CRT display or the like, and corresponds to the display means 5 in FIGS. The first dictionary unit 15 and the second dictionary unit 16 correspond to the first dictionary unit 2 and the second dictionary unit 3 in FIGS. 1 and 10, respectively, and are stored in a magnetic disk device or the like. The memory 12 stores a system program such as an operating system and is used as a work area. The dictionary maintenance memory 13 is a memory for storing a program for causing the computer system to function as a machine translation dictionary maintenance device, and is configured by a floppy disk medium, a RAM card, a magnetic disk device, or the like.

The dictionary maintenance memory 13 is read by the CPU 10 with a program having a function corresponding to the dictionary maintenance section 4 in the embodiment of FIG. 1 or a program having a function corresponding to the dictionary maintenance section 4 in the embodiment of FIG. It is stored as a possible code.

[0052]

As described above, according to the present invention, the first
At the same time as registering the dictionary information in the dictionary for translation from the language to the second language, referencing the corresponding dictionary information of the dictionary for translation from the second language to the first language, which is a language pair in the opposite direction,
If necessary, the dictionary information of the dictionary in the opposite direction can be updated. This not only eliminates the need to individually update a plurality of translation dictionaries having the same language pair but different directions, but also improves the quality of translation because maintenance work can be performed while comparing both dictionary information. .

Further, according to the present invention, when registering a dictionary of phrases in units of phrases composed of a plurality of words and updating dictionary information, those words are divided into words, and a combination of search keys is selected from the divided words. To certify. This makes it possible to more flexibly and efficiently collect, register, and associate vocabulary in a phrase unit including a plurality of words.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a flowchart illustrating an example of processing of a dictionary maintenance unit in the embodiment of FIG.

FIG. 3 is a diagram showing a display example of a registration screen displayed on a display unit by a first dictionary registration unit.

FIG. 4 is a diagram illustrating an example of a logical structure of the first dictionary unit after the first dictionary registration unit registers necessary information in the first dictionary unit.

FIG. 5 is a diagram illustrating an example of a logical structure of a second dictionary unit.

FIG. 6 is a diagram showing a display example of dictionary information of a second dictionary unit as a search result of a second dictionary registration unit.

FIG. 7 is a diagram showing a display example in which dictionary information of a second dictionary section is modified.

FIG. 8 is a diagram showing another example of the logical structure of the second dictionary unit.

FIG. 9 is a diagram showing an example of a polysemy word registration screen.

FIG. 10 is a block diagram of another embodiment of the present invention.

FIG. 11 is a flowchart illustrating an example of processing of a dictionary maintenance unit in the embodiment of FIG.

FIG. 12 is a diagram illustrating an example of a display result when a headword including a search key as a result of word recognition of a translated word registered in the first dictionary unit is searched from the second dictionary unit;

FIG. 13 is a diagram showing an example of a registration screen for registering a headword with a different notation in a second dictionary unit.

FIG. 14 is a diagram illustrating an example of a registration screen for registering a translated word with a different notation in a first dictionary unit.

FIG. 15 is a block diagram illustrating an example of a hardware configuration of a computer system that implements the machine translation dictionary maintenance device of the present invention.

[Explanation of Signs] 1 ... Input means 2 ... First dictionary part 3 ... Second dictionary part 4 ... Dictionary maintenance part 41 ... First dictionary registration means 42 ... Second dictionary registration means 43 ... Word recognition means 5 ... Display means

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G06F 17/27-17/28

Claims (3)

(57) [Claims] An apparatus for maintaining a first dictionary unit for translating a first language into a second language and a second dictionary unit conversely for translating a second language into a first language. A first dictionary registration unit for registering dictionary information including a headword of the first language and a translation of the second language input from the input unit in the first dictionary unit; (1) searching for the dictionary information of the second dictionary unit related to the dictionary information registered in the first dictionary unit, displaying the dictionary information on a display unit, and searching for the second dictionary unit input from the input unit;
A second dictionary registration unit for registering dictionary information including a headword of a language and a translation of the first language in the second dictionary unit , wherein the second dictionary registration unit includes
The translated word in the dictionary information registered in the first dictionary section is used as a headword
Search and display the dictionary information stored in the second dictionary unit,
If such dictionary information cannot be found,
In the dictionary information registered in the first dictionary unit by the first dictionary registration unit
The dictionary information having the headword as a translation word in the second dictionary unit
A dictionary maintenance device for machine translation, characterized in that the dictionary maintenance device has a configuration for searching and displaying the dictionary. 2. An apparatus for maintaining a first dictionary for translating a first language into a second language and a second dictionary for conversely translating a second language into the first language. A first dictionary registration unit for registering dictionary information including a headword of the first language and a translated word of the second language input from the input unit in the first dictionary unit; and a phrase unit word comprising a plurality of words. Word recognition means for dividing a word into words and certifying a word serving as a search key from the word; and a translated word in the dictionary information registered in the first dictionary section by the first dictionary registration means as a headword. The dictionary information having the second
When a search is made from the dictionary section and the dictionary information is displayed on the display means, and no such dictionary information is found, the translated word in the dictionary information is passed to the word recognition means and becomes a search key to be returned. The dictionary information including all the words in one headword is searched from the second dictionary part and displayed on the display means, and the second language headword and the first language translation word inputted from the input means are searched. A dictionary maintenance device for machine translation, comprising: a second dictionary registration unit for registering dictionary information including the following in the second dictionary unit. 3. The method according to claim 1, wherein the second dictionary registration unit is configured to register the first dictionary when no dictionary information including all the search key words returned from the word recognition unit in one headword is found. 3. A machine translation system according to claim 2, wherein said means retrieves and displays, from said second dictionary section, dictionary information having a headword in said dictionary information registered in said first dictionary section as a translation. Dictionary maintenance device.