JPH07200568A - Character processor - Google Patents

Abstract

(57) [Summary] [Purpose] To automatically specify only the necessary technical terms corresponding to the field being input, and suppress the use of unnecessary technical word dictionaries that do not correspond to the field being input. [Structure] This device includes a word dictionary that stores a general word that does not have a specific usage area and a technical word that is used only in a specific field, and specifies whether to convert the technical word. The word dictionary conversion designation means, the input means, and the field of the input document are determined, and the technical word corresponding to the document field to which the text input by the technical word dictionary conversion designation means belongs is specified, and the input text belongs. A field determination means that suppresses the use of a technical word dictionary that does not correspond to the document field and a conversion means that does not perform priority processing when a word belonging to a field is not a specified technical word when preferentially converted. Have.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character processing device for processing Japanese, and more particularly to kana-kanji conversion.

[0002]

2. Description of the Related Art Conventionally, in inputting Japanese, kana-kanji conversion is performed using a word dictionary that stores word readings, notations, and parts of speech. Various methods have been proposed and realized in order to improve the hit rate (conversion rate) of kana-kanji conversion. One of the attempts is field priority conversion processing in which the field of the document being input is specified and homophones are selected according to the field. According to this field priority processing, for example, when it is determined that the field being input is the "medicine" field, "cold" is prioritized over "wind" and "doctor" is prioritized over "stone". can do. Further, it is possible to use it for field priority processing by using a specialized word dictionary with a higher degree of specialization.

[0003]

However, in the field-priority conversion process in which conventional technical terms are used in combination, it is entirely up to the operator whether or not to use the technical terms, and depending on the contents of various documents created, There was the complexity of having to switch the technical language dictionary to be used.

If all the technical terms are always available, the unrelated technical terms may be used depending on the document field to be created. Therefore, in the relevant document area:
Unsuitable terminology is converted and conversion efficiency deteriorates. If all the technical words are not used, even the technical words corresponding to the created document field are not converted, and the conversion efficiency is deteriorated.

[0005] Further, technical terms that are not suitable for the relevant document field are converted, and analysis processing is performed using useless words, thereby increasing conversion processing time and obtaining good input and conversion response performance. I couldn't.

Furthermore, in the conventional field priority conversion processing,
Since no distinction was made between general words and jargon words, jargon words that belong to the same field are prioritized like common words, which is efficient for general operators who do not have knowledge of jargon words. I couldn't say. For example, "medicine"
When it is presumed that it is a document in the field, when you type "kenkyu", medical terms such as "eyelid bulb" and "tendon arch", which are generally difficult to say, are commonly used. Will be converted with priority over.

The present invention has been made in view of the above points, and its purpose is to determine the field of an input document and automatically specify only the necessary technical words corresponding to the field being input. , In order to suppress the use of unnecessary technical term dictionaries that do not correspond to the field you are inputting, and even for words that belong to the same field, you must distinguish between general words and technical words, and the technical words must be specified by the operator. For example, it is to provide a character processing device that does not perform priority conversion depending on the field.

[0008]

In order to achieve the above object, the present invention distinguishes between a general word having no specific usage area and a technical word used only in a specific field while reading a word. On the other hand, a word dictionary storing information of the word including a notation character string, a technical word dictionary conversion designating means for designating whether or not to convert to a technical word stored in the word dictionary, and a word dictionary Inputting means for inputting the reading, field determining means for determining the document field to which the sentence input by the input means belongs, and reading of the word input by the inputting means are designated by the technical word dictionary conversion designating means. And a field priority conversion means for preferentially converting to a word belonging to the field determined by the field determination means, and the field determination means, Through the writing conversion specification unit, characterized by specifying a technical term corresponding to the document Field of the inputted sentence.

Further, in a preferred aspect of the present invention, the field determining means uses all the technical word dictionaries that do not correspond to the document field to which the input sentence belongs via the technical word dictionary conversion designating means. Can be suppressed.

Further, in another aspect of the present invention, preferably, the field priority conversion means specifies the word belonging to the field determined by the field determination means by the technical word dictionary conversion designation means. It can be characterized in that the prioritized conversion according to the field is not performed in the case of a technical term that has not been written.

[0011]

According to the present invention, an operator is suitable for a document field to be input without designating whether or not to use the technical term dictionary.
It is possible to use a technical term, and it is possible to suppress the use of the technical term when inputting a document having irrelevant contents. Therefore, it is possible to prevent the conversion of highly specialized words, which are rare in general, when inputting documents in unrelated fields, and reduce the number of words to be analyzed for conversion, which shortens the response time and improves the operation. The property is also improved.

[0012]

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

FIG. 1 is a block diagram showing an example of the overall configuration of the character processing apparatus of the present invention. In the configuration shown, C
The PU is a microprocessor, performs arithmetic operations for character processing, logical judgments, etc., and controls each component connected to these buses via an address bus AB, a control bus CB, and a data bus DB. Address bus A
B transfers an address signal indicating a component to be controlled by the microprocessor CPU. The control bus CB transfers and applies a control signal of each constituent element to be controlled by the microprocessor CPU.
The data bus DB transfers data between the constituent devices.

The ROM is a read-only fixed memory (read-only memory). PA is a program area in which control procedures by the microprocessor CPU, which will be described later with reference to FIGS. 7 to 12, are stored.

The RAM is a writable random access memory having a structure of 1 word 16 bits, and is used for temporary storage of various data from each constituent element. DIC
Is a word dictionary for performing Kana-Kanji conversion. TBU
F is a document buffer, which is a memory for storing the document information input from the keyboard KB. YBUF is an input reading buffer memory for storing readings input from the keyboard KB. WBUF is a search result storage buffer memory that temporarily stores the search results of the word dictionary DIC. DBPOOL is a homophone pool that stores candidates for kana-kanji conversion.

BFLG is a designated technical word dictionary flag for designating conversion of a word to which technical word information is added among words converted to the word dictionary DIC. The BTBL is a field correspondence table stored by associating a field to be preferentially converted with a technical word dictionary corresponding to the field, and a counter that accumulates a threshold value used for switching the technical word dictionary and the priority state of the field. The memory is also associated and stored.

The KB is a keyboard, which is provided with various character input keys such as alphabet keys, hiragana keys, katakana keys, and various fan cushion keys such as conversion keys for instructing conversion. In FIG. 1, YOM
I is a key for inputting a reading, CON is a conversion instruction key for converting the input reading (hereinafter referred to as a conversion key), and NXT is a next candidate conversion for changing a conversion candidate and converting it to a next candidate. An instruction key (hereinafter referred to as a next candidate conversion key) and SEL are selection keys for instructing to fix the current homophone display candidate and learn the candidate notation at the same time. Further, MDC is a medical dictionary designation key for designating conversion of a medical field technical term stored in the word dictionary DIC.

DISK is an external memory for storing a fixed form document. The created document is stored, and the stored document is called when necessary by an instruction of the keyboard KB.

CR is a cursor register. The microprocessor CPU can read and write the contents of the cursor register CR. CRT controller CRT described later
C displays the cursor at the position on the display device CRT with respect to the address stored in the cursor register CR. DBUF is a display buffer memory that stores patterns such as document information stored in the document buffer TBUF.
The CRT controller CRTC plays a role of displaying the contents stored in the cursor register CR and the buffer DBUF on the display CRT. The CRT is a display device using a cathode ray tube or the like, and the display of the dot configuration pattern and the cursor on the display device CRT is controlled by the CRT controller CRTC.

Further, CG is a character generator, which stores a pattern of characters and symbols to be displayed on the display device CRT.

In the character processing device of one embodiment of the present invention comprising the above-described components, the character processing device operates in response to various inputs from the keyboard KB, and the keyboard K
When the input from B is supplied, first, an interrupt signal is sent to the microprocessor CPU, the microprocessor CPU reads out various control signals stored in the memory ROM, and according to the control signals, various types of control signals are read out. Control is performed.

FIG. 2 shows an example in which Kanji conversion is executed in the apparatus of the present embodiment having the above-mentioned configuration, in comparison with the conventional example.
And with reference to FIG. 3, it demonstrates below.

FIG. 2 (a) shows the display state of the display device CRT when a sentence is input halfway. In the figure, (j) indicates a cursor.

In this state, "ke", "n", "ki",
When the characters "yu", "u", "de", and "ha" are input, the display state of the display device CRT becomes as shown in (b). In this figure, the underline indicated by (k) indicates a state in which the kana-kanji conversion result has not been determined.

From the display state of FIG. 2B, the conversion key C
When ON is input, kana-kanji conversion is executed on the input character string. In the conventional field word priority conversion, when it is determined from the state of the input document that the input field is the "medicine" field, the words in the "medical" field are unconditionally prioritized, so that FIG. As described above, the highly specialized medical term "eyelid bulb" is converted with priority over general "research".

On the other hand, according to the present invention, even if the input field is determined to be the "medical" field, only the specialized field designated by the operator is subject to the field word priority conversion. It can be converted to "research" as in (d) of 2.

Further, in FIG. 3 (e), by inputting the medical dictionary designation key MDC, it is possible to give an instruction to apply the target of the field word priority conversion to the technical words in the field of "medical". (1) in the figure of (f) of FIG. 3 is currently "medicine"
It is a mode display showing that the field technical term dictionary can be converted. When a document similar to that shown in FIG. 2 (b) is input while the “medical” field technical dictionary is convertible, and similarly converted to “Kenkyu de”, as shown in FIG. 3 (i). This time, as a result of the field priority word conversion, the term "eyelid ball", which is a technical term in the medical field, is output with priority over "research".

FIG. 4 shows an example of the word dictionary DIC in the character processing apparatus according to the embodiment of the present invention. In FIG.
YM is the reading of words, HK is the notation of words, GI is the part of speech, FQ is the frequency value, SP is information about whether it is a general word or a technical word, and CT is a field where words are often used. The CF stores the degree of ease of use (also referred to as the certainty factor) in the field in a fixed-length record format. In this figure, for example, “eyelid ball” is a medical term with a frequency of 2 and is registered in the medical field with a certainty factor of 5.

FIG. 5 shows an example of the designated technical term dictionary flag BFLG in the character processing apparatus according to the embodiment of the present invention. This flag BFLG is 1 bit for 1 technical term dictionary,
Set whether to convert or not. In the illustrated state of the figure, only the "medical" technical word having a bit value of 1 is converted in the technical word dictionary.

FIG. 6 shows an example of the field correspondence table BTBL in the character processing apparatus of one embodiment of the present invention. In FIG. 6, CAT stores the priority conversion processing field. S
GM is an integrated index value indicating the state of the priority conversion processing field, and every time a word corresponding to the field is selected, CF in the word dictionary DIC (ease of use in the field)
Is added up according to the value of, and when a word belonging to a field other than the field is selected, the word is subtracted. SHL is a threshold value for determining whether or not the technical term dictionary corresponding to the field can be used. If the value of the SGM (integrated index value) is large from this threshold value, the corresponding technical term dictionary is used. Operate to be possible. SPD1, SPD2
SPD3 is a technical term dictionary type corresponding to the field and is 3
It is possible to store even seeds. In the illustration of FIG.
If the integrated value SGM in the medical / health / medical fields exceeds the threshold value SHL, the medical term and the biological term operate so as to be usable.

The operation of the above embodiment will be described below with reference to FIGS.
It will be described in accordance with the flowchart of.

FIG. 7 is a flow chart showing the overall operation of the character processing device of one embodiment of the present invention. First, S7-
At 1, a key is pressed from the keyboard KB and an interrupt occurs. When a key is input, the key is discriminated in S7-2, and depending on the type of key, S7-3, S
7-4, S7-5, S7-6, S7-7, S7-8.

S7-3 is a process when the reading input key YOMI is pressed, and the code of the pressed reading is stored in the input reading buffer memory YBUF.

S7-4 is a process when the conversion key CON is pressed, and the character string which is input in S7-3 and stored in the input reading buffer memory YBUF and which is the target of kana-kanji conversion is kanji. And output to the output buffer.

Step S7-5 is the processing when the next candidate conversion key NXT is pressed, and another candidate of the same word in the output buffer output in step S7-4 is displayed.

Step S7-6 is a process when the selection key SEL is pressed, and the homophone in the output buffer displayed on the screen of the display device CRT is fixed, and the fixed character string is documented (TBUF). Output inside. Further, the field of the input document is determined from the information of the field of the selected word, and the availability of the corresponding technical term dictionary is determined.

Step S7-7 is a process when the medical dictionary designation key (also referred to as a medical technical term dictionary designation key) MDC is pressed, and the designated technical term dictionary flag (special term dictionary conversion) corresponding to the designated technical term dictionary. Also called designated flag) BF
Set the bit value of LG to 1.

S7-8 is YOMI, CON, NXT,
This is a process when a key other than SEL and MDC (for example, a key used for document editing such as a cursor movement key) is pressed, and is a process generally performed in a character processing device of the same type, and is known. The details will not be described.

S7-9 is a display process for displaying the changed part as a result of the above process. This is a widely-used process of reading one character of data in a document (TBUF), developing it into a pattern, and outputting it to the display buffer memory DBUF.

FIG. 8 is a flow chart showing the conversion process of S7-4 of FIG. 7 in detail. First, in step S8-1, the word dictionary DIC is searched for a character string to be subjected to Kana-Kanji conversion that has been segmented and input in phrase units, and stored in the search result storage buffer memory WBUF. Then S
In 8-2, only candidates that are recognized as phrases from the word dictionary search result (WBUF) are output to the homophone pool DBPOOL as candidates for output of Kana-Kanji conversion. This process is a process generally performed in a character processing device of the same type and is well known, so a detailed description thereof will be omitted.

Next, in step S8-3, for the analysis result output to the homophone pool DBPOOL in step S8-2, kana-kanji conversion is performed from words that match the field of the input document or candidates for which words have been learned. Determines the first candidate of.

Subsequently, in S8-4, the output of the Kana-Kanji conversion stored in the output buffer is displayed. This process is a process generally performed in a character processing device of the same type and is well known, so a detailed description thereof will be omitted.

FIG. 9 is a flow chart showing in detail the dictionary search process of S8-1 of FIG. First, in step S9-1, the word dictionary DIC is searched for with the reading characters of the words input in a divided manner and stored in the buffer memory YBUF. In the next step S9-2, it is determined whether or not a word corresponding to the reading character has been searched. If no more words are found, the process is immediately terminated. If found, the process proceeds to S9-3, refers to the data item SP of the word dictionary DIC, and if it is a general word (that is, not a technical word), it is stored in the word search result storage buffer memory WBUF in S9-5. Store search results. If it is not a general word (that is, it is one of the technical words), it is determined in S9-4 whether it is a usable technical word.

In S9-4, the technical word type indicating which technical word is indicated by the SP of the data item of the word dictionary DIC in FIG. 4 is the designated technical word dictionary flag BFLG.
It is determined whether the corresponding bit information is set. If the searched technical word is not usable in the designated technical word dictionary flag BFLG, it is not stored in the search result buffer memory WBUF and S9-
At 6, the next word is searched. Specified technical language dictionary flag B
If the searched technical term is available in the FLG, the search result buffer memory WBUF is determined in S9-5.
After storing the search result in, the next word is searched in S9-6. When all the words corresponding to the input buffer YBUF have been searched, it is determined in S9-2 that no more words are found, and this processing ends.

FIG. 10 is a flow chart showing in detail the first candidate determination processing of S8-3 of FIG. First, S10
In -1, all Kana-Kanji conversion candidate words stored in the homophone pool DBPOOL are checked to see if they match the input field. If all are checked, the word cannot be determined by matching the field. As
In S10-4, it is checked whether or not there is a learned word, and if there is a learned word, the word is decided and the process is terminated.

If all the fields have not been checked in S10-1, it is determined in S10-2 whether or not the word has field information that matches the input field. If the fields match, the field can be determined. Then, the word is determined as the first candidate, and the process ends. If not, S10-3
Go to and check the next candidate word in the homophone pool DBPOOL.

The determination as to whether or not it matches the input field is performed as follows. Of the word information stored in the homophone pool DBPOOL, the field CT and the certainty factor CF, which are the data items in the word dictionary DIC of FIG. 4, are referred to.
Field integration index value SG of the field correspondence table BTBL in FIG.
Among fields where CAT and CT match where M is not 0,
The candidate word in the homonym pool DBPOOL that maximizes the product of the SGM value and the CF value is determined.

FIG. 11 is a flow chart showing in detail the selection processing of S7-6 of FIG. First, in S11-1, the field of the input document is determined from the field information of the selected word. The field determination is performed as follows. Of the candidate words stored in the homophone pool DBPOOL, the field correspondence table BTB corresponding to the field information CT of the selected word
The value of the certainty factor CF is added to the integrated index value SGM of L,
A constant value (2 in this embodiment) is subtracted from the integrated index value SGM of the unsupported field. After the field determination processing, field-specific technical term dictionary setting processing is executed.

In the next field-specific technical word dictionary setting process in S11-2, the available technical word dictionary corresponding to the field that has reached the field integration index value of a certain level or higher is set to a usable state.

Subsequently, in the learning process of S11-3, the selected word is learned, and the priority of the subsequent conversion of the word is increased. This process is a well-known process that has been conventionally performed in a character processing device of the same type. After this learning process is completed, a confirmation process for confirming a homonym is performed in S11-4.

The learning process is to update the learning data corresponding to the word existing in the dictionary or the registered word, and is a process generally performed in the character processing device of the same kind, and is well known, and therefore, in particular, Not detailed.

FIG. 12 is a flow chart showing in detail the input field determination processing of S11-2 of FIG. First, S1
In step 2-1, all the bit information of the technical word dictionary designation flag BFLG is set to 0 in order to disable all the technical word dictionaries.
Set to. Field correspondence table BT in the next S12-2
It is determined whether or not all fields stored in the BL have been processed, and if all fields have been processed, this process ends.

If all fields are not processed, S12-
If the result of subtracting the value of the technical term use threshold value SHL from the value of the input field integration index value SGM of the field correspondence table BTBL in 3 is negative, that is, this field integration index value SGM
Means that the threshold value for the use of technical terms has not reached the threshold. In this case, the processing of the next field is performed in S12-5.

If the above subtraction result is non-negative (not negative), it is judged that this field integration index value has reached the threshold value at which a technical term can be used, and in the next step S12-4, the technical field corresponding to this field is specialized. The word dictionary is SPD1, which is the field correspondence table BTBL.
It is acquired from SPD2 and SPD3, and each technical term dictionary is designated. The corresponding bit information of the technical term dictionary flag BFLG is set to 1
And set it to the usable state. After that, the process of the next field is performed in S12-5, and then the process returns to S12-2.

(Other Embodiments) In the above description, the general word and the technical word are mixed in the same fixed length dictionary so as to be distinguished by the identification information. However, the general word dictionary and the technical word dictionary are different from each other. By dividing the dictionary itself into, it is possible to further improve the response performance in the dictionary search processing.

Further, in the above description, in determining whether to use the technical term dictionary, a threshold value for determining whether to use the technical term is set as a constant for each field, and it is determined whether or not the threshold value is exceeded. However, a prominent field may be sought in each field and a technical term corresponding to the prominent field may be designated. The prominent field has a high degree of field bias depending on the content of the document being created, and can be obtained as follows, for example. In S10-3 in FIG. 10, the sum and average of the integrated index values SGM of all fields are obtained, and the difference (that is, deviation) from the average for each field is calculated. Σ is the square root of the mean of the sum of squares of each deviation (ie, the standard deviation of the writing document field)
Then, it is possible to determine whether to use the technical term dictionary by checking whether or not the field has a field integration index value of + Nσ (N is a positive constant).

[0057]

As described above, according to the present invention, since the operator can use the jargon suitable for the field of the input document without designating the jargon by himself or herself, the conversion efficiency is improved. Therefore, the operability can be improved.

Further, according to the present invention, the operator can use a technical word suitable for the input document field without designating whether to use the technical word dictionary by himself or herself. It is possible to suppress the use of technical terms when inputting a document. Therefore, it is possible to prevent the conversion of highly specialized words, which are rare in general, when inputting documents in unrelated fields, and reduce the number of words to be analyzed for conversion, which shortens the response time and improves the operation. The property is also improved.

Further, according to the present invention, since the field priority conversion is performed within the range of the technical words designated by the operator, words having high specialization and which are rare in general are given first priority to the operator who does not desire the conversion. It is possible to build a kana-kanji conversion device that is not converted by the method, is suitable for the input field, and is suitable for the operator's word usage level.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of a character processing device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a comparison between a conventional kana-kanji conversion example and an execution example of kana-kanji conversion of the present invention.

FIG. 3 is a diagram showing a continuation of an execution example of kana-kanji conversion according to the present invention.

FIG. 4 is a diagram showing an example of a configuration of a word dictionary DIC in the character processing device of the exemplary embodiment of the present invention.

FIG. 5 is a diagram showing an example of a structure of a technical term conversion designation flag BFLG in the character processing device of one embodiment of the present invention.

FIG. 6 is a diagram showing an example of a configuration of a field correspondence table BTBL in the character processing device according to the embodiment of the present invention.

FIG. 7 is a flowchart showing an example of the processing procedure of the entire operation of one embodiment of the present invention.

FIG. 8 is a flowchart showing an example of a processing procedure of the entire kana-kanji conversion according to the embodiment of the present invention.

FIG. 9 is a flowchart showing an example of a dictionary search procedure in the Kana-Kanji conversion processing according to the embodiment of the present invention.

FIG. 10 is a flowchart showing an example of a first candidate determination procedure in the kana-kanji conversion processing according to the embodiment of the present invention.

FIG. 11 is a flowchart showing an example of a processing procedure of selection processing according to an embodiment of the present invention.

FIG. 12 is a flowchart showing an example of a field-specific technical term dictionary setting process procedure in the selection process according to the embodiment of the present invention.

[Explanation of symbols]

 CPU Microprocessor ROM Read-only fixed memory (read-only memory) RAM Random access memory DIC Word dictionary TBUF Document buffer YBUF Input reading buffer / memory WBUF Search result storage buffer / memory DBPOOL Homophone pool BFLG designated specialized word dictionary flag BTBL Field compatible Table KB Keyboard YOMI Reading input key CON Conversion designation key NXT Next candidate conversion designation key SEL selection key MDC Medical dictionary designation key DISK External memory CR cursor register CRT display device CRTC CRT controller DBUF Display buffer memory CG Character generator

(72) Inventor Hideyasu Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Shuichi Morisawa 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Daiki Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Hitoshi Haruri 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) ) Inventor Chika Kogusu 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Mayumi Morita 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Sakakibara Atsushi 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Mariko Akiba 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (3)

[Claims] 1. A word for reading a word, which includes a written character string, is stored while distinguishing a general word having no specific usage area from a technical word used only in a specific field. A word dictionary, a technical word dictionary conversion designating means for designating whether or not to convert into a technical word stored in the word dictionary, an input means for inputting a reading of a word, and an input by the input means. A field determining unit that determines a document field to which a sentence belongs, and a reading of a word input by the input unit, searching only a technical word and a general word specified by the technical word dictionary conversion specifying unit, and the field And a field priority conversion means for preferentially converting words belonging to the field judged by the judgment means, wherein the field judgment means belongs to the input sentence through the technical word dictionary conversion designation means. Character processing apparatus according to claim that you specify a technical term that corresponds to the document field. 2. The field determining means suppresses the use of all the technical word dictionaries that do not correspond to the document field to which the input sentence belongs via the technical word dictionary conversion designating means. The character processing device according to 1. 3. The field priority conversion means, when a word belonging to a field determined by the field determination means, is a technical word which is not specified by the technical word dictionary conversion specifying means. The character processing device according to claim 1, wherein the priority conversion according to the field is not performed.