JP5029301B2 - Questioning apparatus and computer program - Google Patents

Description

  The present invention relates to a question extraction device that extracts a problem from a problem database in which problems related to kanji are recorded, and questions the extracted problem, and a computer program that implements the questioning device, and is particularly capable of learning practical kanji. The present invention relates to a question-taking apparatus and a computer program.

Various devices for supporting the learning of kanji are commercially available and widely used. For example, Patent Literature 1 discloses an electronic learning machine that specifies the difficulty level of a problem from past test results and questions kanji characters that match the level. Various questioning methods have also been proposed, such as giving priority to kanji that are easy to mistake statistically.
JP-A-63-137289

  However, the conventional question-taking devices such as the device disclosed in Patent Document 1 are merely for the purpose of increasing knowledge of kanji, and there is a problem that kanji that is highly practical for the user cannot be learned. .

  The present invention has been made in view of such circumstances, and by recording the Chinese characters input by the user and extracting the problems to be asked based on the recorded Chinese characters, the Chinese characters that are highly practical for the user are given priority. It is an object of the present invention to provide a question-taking device that can be learned quickly and a computer program for realizing the question-taking device.

The present application extracts a problem from a problem database in which problems related to kanji are recorded , and based on an indication of a position on the image displayed on the display means for displaying an image in a question-taking apparatus that questions the extracted problem Input means for receiving input of characters, and conversion means for converting the received characters into kanji based on the similarity between the locus of the position on the image instructed by the input means and kanji as conversion candidates ; And recording means for associating and recording the converted kanji and the similarity related to the conversion, and the problem from the problem database based on the kanji recorded in the recording means and the similarity associated with the kanji. Disclosed is a question-taking device comprising extraction means for extracting .

The present application further includes a related kanji database that records associated kanji in association with each other, and the extraction unit is configured to determine the problem based on the kanji recorded in the recording unit and the degree of similarity associated with the kanji. A question-taking device is disclosed in which a problem is extracted from a database, and a problem is extracted based on the kanji recorded in the related kanji database in association with the kanji recorded in the recording means .

The present application further includes a time measuring unit that measures a time from the start of the position instruction by the input unit to the completion of the conversion, and the recording unit records the measured time in association with the kanji converted by the conversion unit. The extraction device is configured to extract a problem based on a kanji and a time associated with the kanji .

The present application records a problem relating to kanji , a display means for displaying an image, an input means for accepting input of characters based on an indication of a position on the image displayed on the display means, a recording means for recording kanji. In a computer program that causes a computer provided with the problem database to extract a problem from the problem database and to ask the extracted problem, the position locus on the image instructed by the input means to the computer and a kanji that is a conversion candidate And a procedure for causing the recording means to record the kanji converted by the converting means for converting the received characters into kanji and the similarity related to the conversion, and recording the recording means on the recording means based on the obtained similarity associated with the kanji and該漢characters were, competent to execute a procedure for extracting the problem from the question database Disclose over data program.

In this application, questions are given based on the Chinese characters input by the user. For example, the user can focus on the Chinese characters that the user actually uses, and can preferentially learn kanji characters that are practical for the user. It is.

In the present application, it is possible to present not only a kanji actually input by the user but also a problem relating to a kanji based on a kanji related to the input kanji.

In the present application, it is possible to give questions based on kanji characters input by a function such as a handwriting input function using an input means such as a mouse.

In the present application, when inputting a kanji character using the handwriting recognition function, if a kanji character with a low similarity is input, it is considered that the memory about the kanji character is likely to be ambiguous. By adjusting, it is possible to give priority to questions of kanji.

In the present application, when inputting kanji using the handwriting recognition function, it is considered that the kanji that takes time to input is likely to be ambiguous, and for example, adjusting the frequency of extraction based on similarity Therefore, it is possible to focus on the kanji that you remember.

  The present application records, for example, kanji entered by the user using a function such as a kana-kanji conversion function in a recording means, and based on the recorded kanji, issues such as single kanji, idioms and sentences including the recorded kanji are given priority. For example, it is possible to focus on the kanji actually used by the user, and it is possible to preferentially learn kanji that is highly practical for the user. .

  This application is based not only on the kanji actually input by the user, but also on kanji such as easy-to-mistake kanji related to the input kanji by performing questions based on related kanji such as kanji with the same reading and similar shapes. It is possible to output a problem as well.

  The present application has an excellent effect that it is possible to give a question based on a Chinese character input by a function such as a handwriting input function for converting a locus designated by an input means such as a mouse into a Chinese character.

  This application is based on the similarity of kanji input using functions such as the handwriting input function or the time required for conversion, and by selecting the problem to be asked, the kanji with low similarity and the kanji that requires time to input Considers that the memory of the kanji is likely to be ambiguous, for example, by adjusting the frequency of extraction based on the similarity and time, it is possible to focus on the kanji that is profound, etc. Has an excellent effect.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a block diagram showing the hardware configuration of the question-taking apparatus according to the present invention. In FIG. 1, reference numeral 1 denotes a question-taking apparatus according to the present invention using a computer such as a personal computer. The questioning apparatus 1 includes a control unit 10 such as a CPU that controls the entire apparatus, a computer program 100 of the present invention, a CD-ROM drive that reads various information from a recording medium such as a CD-ROM that records various information such as data, and the like. Auxiliary storage unit 11, a recording unit 12 such as a hard disk for recording various information read by the auxiliary storage unit 11, and a storage unit 13 such as a RAM for temporarily storing information. Then, the computer program 100 recorded in the recording unit 12 is stored in the storage unit 13 and executed by the control of the control unit 10, whereby the computer operates as the questioning apparatus 1 of the present invention. The questioning apparatus 1 stores not only the computer program 100 of the present invention but also various programs such as word processor software and mail transmission / reception software.

  Furthermore, the questioning apparatus 1 includes a timekeeping unit 14 that measures time and time, a display unit 15 such as a monitor that displays an image, a first input unit 16 such as a keyboard, and a position on the image displayed on the display unit 15. And a second input unit 17 for instructing.

  FIG. 2 is a functional block diagram showing functions of the questioning apparatus 1 of the present invention. The question-taking device 1 of the present invention executes various computer programs such as the computer program 100 of the present invention in the control unit 10, thereby causing the control unit 10 to perform kana-kanji conversion means 10a, handwritten character recognition means 10b, converted kanji recording means. 10c, a problem generation unit 10d, a questioning unit 10e, a correct / incorrect determination unit 10f, and the like. The kana-kanji conversion unit 10a has a conversion dictionary related to kanji conversion, and has a function of converting “kana” input from the first input unit 16 into “kanji” by referring to the conversion dictionary. The handwritten character recognition unit 10 b has a function of converting the locus of the position on the image of the display unit 15 instructed by the second input unit 17 into “Kanji”. The conversion kanji recording unit 10c has a function of recording information on the kanji converted by the kana / kanji conversion unit 10a and the handwritten character recognition unit 10b in the recording unit 12. The problem generation unit 10d has a function of generating a question to be asked. The questioning means 10e has a function of giving a question generated by the problem generating means 10d. The correctness / incorrectness determination means 10f has a function of performing correctness / incorrectness determination of an answer to the question that has been presented.

  The question-taking apparatus 1 of the present invention executes various computer programs such as the computer program 100 of the present invention in the control unit 10, thereby converting a conversion kanji database (conversion kanji DB) 12 a and related information into the recording area of the recording unit 12. Various databases such as a kanji database (related kanji DB) 12b and a problem database (problem DB) 12c are generated, and a part of the recording area of the recording unit 12 is used as various databases. The conversion kanji database 12a is a database that records information about kanji by the conversion kanji recording means 10c. The related kanji database 12b is a database that records a group of kanji such as kanji with the same reading and similar shapes as related kanji. The problem database 12c is a database that records problems that are candidates for questions, and records various problems related to kanji, such as problems related to single kanji, problems related to idioms, and problems related to sentences including kanji.

  FIG. 3 is an explanatory diagram conceptually showing the recorded contents of the converted Kanji database 12a provided in the questioning apparatus 1 of the present invention. In the converted kanji database 12a, various information for each item such as kanji, reading, conversion time, conversion frequency, similarity, and conversion time is recorded as a record. In the kanji item, single kanji characters such as “dot” and idioms such as “today” are recorded. The single kanji includes a kanji used with a ending, such as a “good” stem portion “good”, which is a reading of “good”. In the item of reading, readings such as “Ten” and “Kyo” are recorded, and “Good”, which is a kanji reading, is recorded as “Yo”, which is a stem reading. By combining the items of kanji and the items of reading, the same kanji can be handled as different kanji depending on how to read sound reading, kanji reading, and the like. In addition, kanji such as “now” as a single kanji and “today” as a idiom can be handled as different kanji. In the item of conversion time, the date and time last converted by the kana-kanji conversion means 10a or the handwritten character recognition means 10b is recorded. In the item of conversion frequency, the number of times of conversion by the kana-kanji conversion means 10a or the handwritten character recognition means 10b, or the number of times of conversion during the most recent predetermined period, for example, three months is recorded. In the item of similarity, information indicating the similarity between the input locus and the converted kanji is recorded when the kanji conversion is performed by the handwritten character recognition unit 10b. In the conversion time item, when kanji conversion is performed by the handwritten character recognition means 10b, the time from the start of the position instruction by the second input unit 17, that is, from the start of writing to the completion of conversion is recorded.

  FIG. 4 is an explanatory diagram conceptually showing the recorded contents of the related Kanji database 12b provided in the questioning apparatus 1 of the present invention. The related kanji database 12b is a database that records a group in which each related kanji is associated as a group of kanji in record units. FIG. 4A shows a group of homophones with the same reading. For example, kanji such as “morning”, “hemp”, “shallow”, etc. are a group of kanji associated with the same reading “asa”. FIG. 4B shows a group of similar Kanji characters having similar shapes. For example, “eye”, “day”, and “field” are a group of kanji characters that are related as having similar shapes.

  FIG. 5 is an explanatory diagram conceptually showing the recorded contents of the problem database 12c provided in the questioning apparatus 1 of the present invention. In the problem database 12c, various information for each item such as a problem, a type, a difficulty level, and a question probability is recorded in units of records. In the problem item, various problems related to kanji such as problems related to single kanji, problems related to idioms, and problems related to sentences including kanji are recorded. In the type item, a question format of a question such as a “selection question” for selecting an answer such as a “reading” question, a “writing” question, and an answer such as the meaning of a kanji from the choices is recorded. In the item of difficulty level, information indicating the difficulty level such as “second grade” and “third grade” is recorded. Information indicating the probability of being selected as a question to be asked is recorded in the question probability item.

  Next, processing of the questioning apparatus 1 of the present invention will be described. FIG. 6 is a flowchart showing the first kanji recording process of the questioning apparatus 1 of the present invention. The first kanji recording process is a process of recording the kanji converted by the kana-kanji conversion means 10a. Under the control of the control unit 10 that executes the computer program 100, the question-taking apparatus 1 accepts input of characters input as kana from the first input unit 16 (S101), and the characters received by the kana-kanji conversion means 10a. Is converted into kanji (S102). As long as the process of steps S101 to S102 is in a state where the kana-kanji conversion means 10a is activated, various characters that can be input in Japanese such as word processor software and mail transmission / reception software recorded in the questioning apparatus 1 are available. It is executed in conjunction with a simple program. The character input as the kana in step S101 indicates not only the input of the kana itself but also the character input as the kana by the Romaji conversion. The conversion in step S102 indicates a state in which the converted kanji is selected from the conversion candidates and confirmed.

  Then, the questioning apparatus 1 records the kanji converted by the kana-kanji conversion means 10a in the converted kanji database 12a in step S102 by the process of the converted kanji recording means 10c based on the control of the control unit 10 (S103). In step S103, the kanji after conversion is confirmed, that is, the single kanji or idiom is recorded in the converted kanji database 12a, and information such as reading, conversion time, conversion frequency and the like related to the single kanji or idiom to be recorded is also recorded. As the conversion time, the date and time indicated by the timer 14 when the conversion is completed is used. In step S103, the question-taking apparatus 1 detects whether or not a kanji that is the same as the single kanji or idiom to be recorded is already recorded in the converted kanji database 12a, and if it is not recorded, When it is recorded in the converted kanji database 12a and it is detected that it has already been recorded, the conversion time and conversion frequency of the record in which the corresponding kanji is recorded are updated. When recording in step S103, the problem database 12c is referred to, and if the difficulty level of the kanji or idiom to be recorded is easier than the predetermined difficulty level, it may be excluded from the recording target. This is because Kanji characters with a high conversion frequency such as “I” and “Up” but with a low difficulty level are excluded from questions.

  The process of step S103 will be further described in detail. When the kanji converted in step S102 is a single kanji or idiom, the question-taking apparatus 1 records the converted kanji and idioms and information related to them in the converted kanji database 12a as processing in step S103. In step S102, when the character input as “Kyou is good weather” is converted by the sentence conversion function of the kana-kanji conversion means 10a as a sentence including kanji such as “Today is good weather”, the question-taking apparatus 1 As a process of step S103, the sentence before conversion “Kyo is good weather” and the post-conversion sentence “Today is good weather” are compared, and the conversion dictionary of the kana-kanji conversion means 10a or the process at the time of conversion is compared. Referring to "Kana / Tenki is [good / good] is [good / good]", a single kanji or idiom is associated with kana. At this time, characters that do not include kanji characters such as “ha” and “ga”, ending characters such as “i”, and various symbols including punctuation marks such as “.” Are not subject to association. Then, the question-taking apparatus 1 performs the single kanji character based on the data “[Today / Today] is [Good / Good]! [Weather / Tenki]” as the result of the associated processing as the processing of Step S103. Alternatively, idioms, associated readings, and information such as conversion time and conversion frequency are recorded in the converted kanji database 12a. In this way, the first kanji recording process is executed.

  FIG. 7 is a flowchart showing the second kanji recording process of the questioning apparatus 1 of the present invention. The second kanji recording process is a process of recording the kanji converted by the handwritten character recognition means 10b. The question-taking apparatus 1 receives an input from the second input unit 17 based on the control of the control unit 10 that executes the computer program 100 (S201), and converts the received input content into kanji by the handwritten character recognition unit 10b. (S202). If the processing of steps S201 to S202 is in a state where the handwritten character recognizing means 10b is activated, it is possible to input Japanese characters such as word processor software and mail transmission / reception software recorded in the questioning apparatus 1. It is executed in conjunction with various programs. The input from the second input unit 17 in step S201 is an input that designates an arbitrary position on an image such as a handwritten palette displayed on the display unit 15, and further moves the designated position. Then, the degree of similarity between the locus of the position on the image instructed by the second input unit 17 and the shape of the kanji as the conversion candidate is obtained, and the kanji whose similarity is equal to or greater than a predetermined value is used as the conversion candidate. The conversion process is performed by selecting and confirming the converted kanji from the conversion candidates.

  Then, the question answering apparatus 1 records the kanji converted by the handwritten character recognizing means 10b in the converted kanji database 12a in step S202 by the process of the converted kanji recording means 10c based on the control of the control unit 10 (S203). In step S203, the kanji after conversion is recorded in the converted kanji database 12a, and information such as reading, conversion time, conversion frequency, similarity, conversion time and the like related to the kanji to be recorded is also recorded. The similarity is the similarity between the locus and the determined kanji. The conversion time is the time required from the start of position indication by the second input unit 17 to the confirmation, and is measured by the time measuring unit 14. In the item of reading, a typical reading shown in the conversion dictionary of the kana-kanji conversion means 10a is recorded, but may be left blank. In this way, the second kanji recording process is executed.

  The first kanji recording process and the second kanji recording process described above are processes for linking the conversion process by the kana-kanji conversion unit 10a and the handwritten character recognition unit 10b with the question function of the present application. Execution is started or stopped by the user performing a predetermined operation such as the above instruction.

  In addition, in the first kanji recording process and the second kanji recording process, when the number of records related to kanji recorded in the converted kanji database 12a exceeds a predetermined number, for example, a record with an old conversion time based on the conversion time and the conversion frequency. You may make it delete in order.

  FIG. 8 is a flowchart showing the questioning process of the questioning device 1 of the present invention. The questioning process is a process in which the program module such as the question generating means 10d, the questioning means 10e, etc. functions and issues a problem relating to kanji when the user's operation designates execution of a function that questions a problem related to kanji. is there. Based on the control of the control unit 10 that executes the computer program 100, the questioning apparatus 1 extracts kanji, that is, single kanji and idioms, recorded in the converted kanji database 12a by the problem generating means 10d (S301). The related kanji related to the extracted kanji is extracted from the related kanji database 12b (S302). In step S302, it is determined whether or not a record indicating the group including the kanji extracted in step S301, particularly a single kanji, is recorded in the related kanji database 12b. This is a process of extracting a group of included kanji as related kanji. By extracting not only the kanji extracted in step S301 but also related kanji in step S302, it becomes possible to widen the width of the kanji to be asked.

  The question-taking apparatus 1 extracts a problem from the problem database 12c based on the kanji extracted in step S301 and the related kanji extracted in step S302 by the process of the problem generating unit 10d based on the control of the control unit 10 (S303). ). In step S303, the question-taking apparatus 1 extracts a problem selected according to the question probability using, for example, a random number from a plurality of questions recorded in the question database 12c. Among the recorded problems, for the problem including the kanji extracted in step S301 and the related kanji extracted in step S302, a probability changing process for increasing the questioning probability is executed as a pre-process. By executing the probability changing process, the problem including the kanji extracted in step S301 or the related kanji extracted in step S302 is extracted with priority over the problem not including these. Further, the problem may be extracted after changing the question probability based on the similarity recorded in the converted kanji database 12a. In other words, a kanji with low similarity can be given priority to the kanji that is memorized by determining that the memory of the kanji is ambiguous and raising the question probability. Furthermore, the question may be extracted after changing the question probability based on the conversion time recorded in the conversion kanji database 12a. That is, a kanji that takes time to input can be focused on the kanji that is prone to remember by determining that the memory about the kanji is ambiguous and increasing the appearance probability. In addition, the question probability may be changed according to the conversion time, the conversion frequency, etc., and the problem of “writing” is extracted based on the kanji recorded by the kanji recording first process, and the kanji recording second process is executed. It is possible to set as appropriate, such as extracting a “reading” problem based on the recorded Chinese characters. Furthermore, it is also possible to use existing techniques such as preferential extraction of kanji, which is generally regarded as easy to be mistaken, and preferential extraction of kanji that have been erroneously answered in the past.

  Then, the questioning apparatus 1 generates a question to be asked based on the extracted problem by the processing of the problem generating unit 10d based on the control of the control unit 10 (S304), and issues the generated problem by the processing of the questioning unit 10e. (S305). The question in step S305 is executed by displaying the generated problem on the display unit 15. The question processing is executed in this way.

  FIG. 9 is a flowchart showing answer acceptance and determination processing of the questioning apparatus 1 of the present invention. The answer acceptance and determination process is a process of accepting an answer to a question given by the questioning process and determining whether the accepted answer is correct or incorrect. The question-taking apparatus 1 accepts an answer to the given question from the first input unit 16 and / or the second input unit 17 through the processing of the correctness determination means 10f based on the control of the control unit 10 that executes the computer program 100 (S401). ), The correctness / incorrectness of the accepted answer is determined (S402), and the determination result is displayed on the display unit 15 (S403). The reception in step S401 is executed by an appropriate method for receiving inputs such as a kana input from the first input unit 16 and a trajectory of the indicated position from the second input unit 17 in accordance with the question contents and format. In addition, the process which receives an answer according to the question content and the format is executed by diverting a process using a publicly known technique that has already been disclosed or implemented. In this way, answer reception and determination processing is executed.

  The above embodiment shows a part of an infinite number of embodiments of the present invention, and the present invention is not limited to this, and can be developed in various methods that reflect the contents of kanji conversion in the questions. Is possible. Further, as shown in the above-described embodiment, the computer program of the present invention is executed on a server machine that can be accessed from one or a plurality of client machines, instead of using a single computer that starts as a stand-alone device as a question-taking device. It is possible to develop in various forms such as taking questions based on the conversion results of a plurality of users.

  Regarding the above embodiment, the following additional notes are disclosed.

(Appendix 1)
In a question-taking device that extracts problems from a problem database that records problems related to kanji,
Input means for accepting input of characters;
Conversion means for converting received characters into kanji;
A recording means for recording the converted kanji,
An extraction device comprising: extraction means for extracting a problem from the problem database based on kanji recorded in the recording means.

(Appendix 2)
2. The questioning apparatus according to claim 1, wherein the extraction unit extracts a problem including the kanji recorded in the recording unit in preference to a problem not including the recorded kanji. .

(Appendix 3)
3. The question-taking apparatus according to appendix 1 or appendix 2, wherein the problem database records at least one of a problem related to single kanji, a problem related to idioms, and a problem related to sentences including kanji as problems related to kanji.

(Appendix 4)
A related kanji database that records each kanji in association with each other is further provided.
The extraction means extracts the problem based on the kanji recorded in the related kanji database in association with the kanji recorded in the recording means. The questioning device according to any one of the above.

(Appendix 5)
5. The question-taking apparatus according to appendix 4, wherein the related kanji database records kanji with the same reading and / or similar kanji as related kanji.

(Appendix 6)
It further comprises display means for displaying an image,
The input means is adapted to indicate a position on the image displayed on the display means,
Any one of the appendix 1 to the appendix 5 characterized in that the conversion means performs conversion based on the similarity between the locus of the position on the image instructed by the input means and the kanji as the conversion candidate. The questioning device described in Crab.

(Appendix 7)
The recording means is configured to record the similarity related to the conversion in association with the kanji,
The question-taking apparatus according to appendix 6, wherein the extraction unit extracts a problem based on a kanji and a similarity associated with the kanji.

(Appendix 8)
Further comprising time measuring means for measuring the time from the start of position indication by the input means to the completion of conversion,
The recording means is configured to record the measured time in association with the kanji converted by the conversion means,
8. The question-taking apparatus according to appendix 6 or appendix 7, wherein the extraction unit extracts a problem based on a kanji and a time associated with the kanji.

(Appendix 9)
In a computer program that causes a computer having an input means for accepting input and a problem database that records problems related to kanji to extract problems from the problem database,
On the computer,
A procedure for recording the kanji converted by the conversion means for converting the characters received by the input means to kanji;
A computer program for executing a procedure for extracting a problem from the problem database based on a recorded Chinese character.

It is a block diagram which shows the hardware constitutions of the question-taking apparatus of this invention. It is a functional block diagram which shows the function of the question-taking apparatus of this invention. It is explanatory drawing which shows notionally the recording content of the conversion Kanji database with which the questioning device of this invention is provided. It is explanatory drawing which shows notionally the recording content of the related kanji database with which the question-taking apparatus of this invention is provided. It is explanatory drawing which shows notionally the recording content of the problem database with which the questioning device of this invention is provided. It is a flowchart which shows the Chinese character recording 1st process of the question-taking apparatus of this invention. It is a flowchart which shows the 2nd kanji recording process of the question-taking apparatus of this invention. It is a flowchart which shows the question processing of the questioning device of this invention. It is a flowchart which shows the answer reception and determination processing of the question-taking apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Questioning apparatus 10 Control part 11 Auxiliary storage part 12 Recording part 13 Storage part 14 Timekeeping part 15 Display part 16 1st input part 17 2nd input part 10a Kana-kanji conversion means 10b Handwritten character recognition means 10c Conversion kanji recording means 10d Problem generation means 10e Questioning means 10f Correct / incorrect determination means 12a Conversion Kanji database 12b Related Kanji database 12c Problem database

Claims (4)

In a question-taking device that extracts problems from a problem database that records problems related to kanji,
Display means for displaying an image;
An input means for receiving an input of characters based on an instruction of a position on the image displayed on the display means ;
Conversion means for converting received characters into kanji based on the similarity between the locus of the position on the image instructed by the input means and kanji as a conversion candidate ;
A recording means for recording the converted kanji and the similarity related to the conversion in association with each other ;
A question-taking apparatus comprising: extraction means for extracting a problem from the problem database based on the kanji recorded in the recording means and the similarity associated with the kanji. A related kanji database that records each kanji in association with each other is further provided.
The extraction means extracts a problem from the problem database based on the kanji recorded in the recording means and the similarity associated with the kanji, and further associates with the kanji recorded in the recording means The question-taking apparatus according to claim 1, wherein a question is extracted based on kanji recorded in a related kanji database. Further comprising time measuring means for measuring the time from the start of position indication by the input means to the completion of conversion,
The recording means is configured to record the measured time in association with the kanji converted by the conversion means,
Said extraction means, based on the time associated with the Kanji and該漢shaped, question apparatus according to claim 1 or claim 2, characterized in that are the manner to extract the problem. Display means for displaying an image, input means for accepting input of characters based on an indication of a position on the image displayed on the display means, recording means for recording kanji, and a problem database in which problems relating to kanji are recorded In a computer program that causes a computer comprising
On the computer,
Based on the similarity between the locus of the position on the image instructed by the input means and the kanji as a conversion candidate , the kanji converted by the conversion means for converting the received character into kanji and the similarity related to the conversion A procedure for associating the degree with the recording means ,
A computer program for executing a procedure for extracting a problem from the problem database based on a Chinese character recorded in the recording means and a similarity associated with the Chinese character .

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