JP2019164182A - Character evaluation program, character evaluation method, and character evaluation device - Google Patents

Abstract

To provide a character evaluation program or the like capable of improving the convenience.SOLUTION: A character evaluation device 10 includes: a problem presentation unit 21 for presenting a problem; an acquisition unit 22 for acquiring input information showing at least one or more handwritten characters input by a user with respect to the problem presented by a problem presentation unit 21; and a control execution unit 23 that executes the evaluation of the input information on the basis of the comparison between the character and stroke count recognized on the basis of the input information acquired by the acquisition unit 22 and correct character and stroke count, and executes different control in response to the stroke count of the recognized character.SELECTED DRAWING: Figure 2

Description

  The present disclosure relates to a character evaluation program, a character evaluation method, and a character evaluation device that evaluate a character input by a user.

  In recent years, devices and programs for evaluating characters input by users such as kanji, alphabet, hiragana, and katakaka have become widespread.

  For example, Patent Document 1 recognizes a character handwritten on the touch panel, compares the recognized handwritten character with a model character, and writes the handwritten character in the order and final writing (stop, splash, pay). The handwritten character evaluation apparatus which evaluates is disclosed. This device acquires temporal changes in the operation position and writing pressure, and determines whether the stroke order and final writing are accurate while counting the number of strokes. In addition, this apparatus executes character recognition processing when an instruction operation indicating that the input of handwritten characters has been completed is received from the user.

JP 2013-130678 A

  The handwritten character evaluation device disclosed in Patent Document 1 counts the number of strokes of input handwritten characters. The number of strokes counted is used to evaluate the stroke order and final stroke. The counted number of strokes is not subject to evaluation. When evaluating only with the stroke order and the final writing, there is a possibility that handwritten characters may be erroneously recognized depending on the writing method. On the other hand, if the number of strokes is set as the evaluation target, it is considered that the evaluation accuracy can be improved.

  Also, with this device, the user cannot obtain an evaluation result unless performing an instruction operation indicating that the input of handwritten characters is completed, and cannot proceed to the next problem. Thus, in the handwritten character evaluation device disclosed in Patent Document 1, there is a possibility that an increase in operation load or erroneous recognition may occur, which is inconvenient for the user.

  By the way, it is not the evaluation method which compares a handwritten character with a model character like patent document 1, but the evaluation which extracts the character similar to a handwritten character as a candidate of a handwritten character from the character database in which several characters are registered. The method is known. A program for executing such evaluation is referred to as a handwritten character recognition engine (handwritten character recognition module). A character database is also called a dictionary.

  In a character evaluation device that uses a handwritten character recognition engine, when extracting a character similar to a user's handwritten character, a character different from an actual handwritten character may be extracted. Therefore, even if the handwritten character is actually correct, there is a possibility that it is determined as an error. Further, even if the handwritten character is actually an error, there is a possibility that it is determined to be correct. If there is no remedy for such erroneous recognition, it is inconvenient for the user.

  Therefore, in view of such circumstances, it is an object of the present disclosure to provide a character evaluation program that can improve convenience.

  A character evaluation program according to an embodiment of the present disclosure includes one or a plurality of computers, a problem presenting unit that presents a problem, and at least one handwritten character input by a user with respect to the problem presented by the problem presenting unit The acquisition means for acquiring the input information indicating the character, the number of strokes recognized based on the input information acquired by the acquisition means, the evaluation of the input information based on the comparison of the correct character and stroke number, and the number of recognized strokes It is made to function as a control execution means for executing different control in response.

  The character evaluation method according to an embodiment of the present disclosure is a character evaluation method realized by executing a predetermined computer-readable instruction by one or a plurality of processors, and presents a problem. An acquisition step for acquiring input information indicating at least one handwritten character input by the user for the problem presented in the problem presentation step, and a character and stroke count recognized based on the input information acquired in the acquisition step And a control execution step in which input information is evaluated based on the comparison between the correct character and the number of strokes, and different control is performed according to the recognized number of strokes.

  In addition, the character evaluation device according to an embodiment of the present disclosure includes a problem presentation unit that presents a problem, and input information that indicates at least one handwritten character input by the user with respect to the problem presented by the problem presentation unit The input unit evaluates the input information based on the comparison between the acquisition unit that acquires the character, the number of strokes recognized based on the input information acquired by the acquisition unit, and the correct character and the number of strokes, and differs depending on the recognized number of strokes And a control execution unit that executes control.

  According to the present disclosure, it is possible to provide a character evaluation program or the like that can improve convenience.

It is a block diagram showing an example of composition of a character evaluation device concerning one embodiment of this indication. It is a block diagram which shows an example of the function of the character evaluation apparatus which concerns on one Embodiment. It is a figure which shows an example of the display screen of the character evaluation apparatus which concerns on one Embodiment. It is a figure which shows the 1st example of the display screen of the state (before execution of evaluation) in which the handwritten character was input in the display screen of FIG. It is a figure which shows the 1st example of the display screen of the state (after execution of evaluation) in which the handwritten character was input in the display screen of FIG. It is a figure which shows the 2nd example of the display screen of the state (after execution of evaluation) in which the handwritten character was input in the display screen of FIG. It is a figure which shows an example of the display screen after changing from FIG. It is a figure which shows an example (at the time of correct answer) of the display screen after changing from FIG. It is a figure which shows an example (at the time of incorrect answer) of the display screen after changing from FIG. It is a figure which shows the 3rd example of the display screen of the state (after execution of evaluation) in which the handwritten character was input in the display screen of FIG. It is a figure which shows an example of the display screen after changing from FIG. It is a figure which shows the 4th example of the display screen of the state (after execution of evaluation) in which the handwritten character was input in the display screen of FIG. It is a figure which shows an example of the display screen after changing from FIG. It is a figure which shows an example of the display screen after changing from FIG. It is a flowchart which shows an example of the control processing of the character evaluation apparatus which concerns on one Embodiment.

  Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Note that the embodiments described below do not unduly limit the content of the present disclosure described in the claims. In addition, all the components shown in the embodiments are not necessarily essential components of the present disclosure. In the following description, common constituent elements are denoted by the same reference numerals.

(Embodiment)
FIG. 1 is a block diagram illustrating an example of a configuration of a character evaluation device 10 according to an embodiment. The character evaluation device 10 provides a learning environment to the user who operates the character evaluation device 10, and supports the user's learning. Note that the character evaluation device 10 is not a device that supports learning, but may be a device that automatically scores and evaluates characters (input information) input by handwriting by character recognition, stroke number recognition, and the like. .

<Configuration of character evaluation device>
The character evaluation device 10 is configured as a computer. The character evaluation device 10 is, for example, a smartphone or a tablet terminal. The character evaluation device 10 includes a CPU (processor) 11, a main memory 12, a user I / F 13, a communication I / F 14, and an external memory 15. The CPU 11, main memory 12, user I / F 13, communication I / F 14, and external memory 15 are electrically connected to each other via a bus 16.

  The CPU 11 loads various programs from the external memory 15 into the main memory 12 and executes instructions included in the loaded programs. The main memory 12 is used for storing a program executed by the CPU 11, and is constituted by, for example, a DRAM.

  The user I / F 13 is a user interface including, for example, an information input device that receives information input by the user and an information output device that outputs information from the CPU 11. An information input device is provided with any one or more of an operation button, a pointing device, a touch panel, etc., for example. The operation button may be a physically installed button or a virtually installed button (for example, a specific display area on the touch panel). The information output device includes, for example, a display device that displays text, images, and the like based on information output from the CPU 11, and a speaker device that outputs sound based on information output from the CPU 11.

  Note that the user I / F 13 may not be integrated with the character evaluation device 10. For example, the user I / F 13 may be a separate device from the character evaluation device 10 and may be configured to communicate with the character evaluation device 10 in a wired or wireless manner. Further, the user I / F 13 may be configured by a plurality of devices. For example, the information input device and the information output device may be independent devices.

  The communication I / F 14 is a communication interface implemented as hardware, firmware, communication software such as a TCP / IP driver or a PPP driver, or a combination thereof. The character evaluation device 10 is configured to be able to communicate with an external device via the communication I / F 14. The character evaluation device 10 may be configured not to include the communication I / F 14.

  The external memory 15 is configured by, for example, a magnetic disk drive, a flash memory, or the like. The external memory 15 stores various programs and various data for providing a user with a character learning environment. Various programs include a character evaluation program, a handwritten character recognition engine, and the like. Various data includes problem information, input information, correct answer information, evaluation results, and the like.

  Various programs may be stored in the external memory 15 in advance, or may be acquired by the character evaluation device 10 communicating with the external device via the communication I / F 14 and stored in the external memory 15. .

  Further, in the present embodiment, a case where all of various programs and various data are stored in the external memory 15 and the character evaluation apparatus 10 provides a learning environment offline will be described as an example. However, all or some of various programs and various data may be stored in an external device. For example, the character evaluation device 10 may be configured to provide a learning environment offline by communicating with the server device storing the character recognition engine via the communication I / F 14.

  Here, the function of the character evaluation apparatus 10 having the above configuration will be described. FIG. 2 is a block diagram illustrating an example of functions of the character evaluation device 10.

  The character evaluation device 10 includes a problem presentation unit 21 that presents a problem, an acquisition unit 22 that acquires input information input by a user, a control execution unit 23 that executes evaluation of input information, and a memory that stores various pieces of information. Part 24.

  These functions are realized by the hardware such as the CPU 11, the main memory 12, the user I / F 13, and the external memory 15 operating in cooperation. For example, the CPU 11 executes a program including at least a part of each module corresponding to each function of the problem presentation unit 21, the acquisition unit 22, and the control execution unit 23, and stores various information in the external memory 15. Is realized.

  The storage unit 24 is realized by, for example, the external memory 15. The storage unit 24 includes a problem information storage unit 31 that stores problem information related to a problem, an input information storage unit 32 that stores input information acquired by the acquisition unit 22, a correct information storage unit 33 that stores correct information, and various types of information. It has the program memory | storage part 34 which memorize | stores a program, and the evaluation result memory | storage part 35 which memorize | stores the evaluation result by the control execution part 23. FIG.

  The problem presentation unit 21 presents a problem based on the problem information stored in the problem information storage unit 31. For example, the problem presentation unit 21 outputs sound to the speaker device of the user I / F 13 or displays text, an image, or the like on the display device according to the problem information.

  The problem information is information indicating a problem related to a character and causing the user to answer with a handwritten character. In the present embodiment, the character to be answered by the user is a single kanji character. However, the characters to be answered by the user are not limited to this. For example, the problem information may be a problem of kanji to be answered including a idiom of a plurality of characters and a sending kana. The number of characters to be answered may be two or more, and is not limited to Japanese kanji, but may be Korean characters, traditional characters, simplified characters, alphabet, hiragana, katakana, or the like.

  The acquisition unit 22 acquires input information indicating at least one or more handwritten characters input by the user with respect to the problem presented by the problem presentation unit 21. The handwritten character may be recognized, for example, by detecting that the user moves a finger or an electronic pen on the touch panel of the information input device of the user I / F 13 or detects an image drawn by a pointing device. May be recognized. The recognized handwritten character and the number of strokes thereof are acquired as input information. The input information storage unit 32 of the storage unit 24 stores the input information acquired by the acquisition unit 22 in a predetermined case. The predetermined case is, for example, a case where answers to a plurality of problems are comprehensively evaluated.

  The control execution unit 23 executes evaluation of the input information acquired by the acquisition unit 22. Specifically, the control execution unit 23 evaluates the input information based on a comparison between the character and stroke number recognized based on the input information and the correct character and stroke count indicated by the correct answer information.

  The character recognized based on the input information may be a single character or a plurality of characters. The plurality of characters are character candidates recognized as answers, and are referred to as a recognized character set in the present disclosure. On the other hand, the number of strokes recognized based on the input information is the number of input strokes when the user writes handwritten characters, and is specified as one value.

  The correct answer information is information indicating the correct answer and explanation for each question, and includes information indicating the correct answer and the number of strokes. The correct answer information is stored in the correct answer information storage unit 33, and the control execution unit 23 reads and compares the correct answer information when evaluating the input information.

  Moreover, the control execution part 23 performs different control according to the number of strokes recognized based on input information. This control includes, for example, an evaluation timing control that executes evaluation at different timings according to the number of recognized strokes, and an output control that displays different screens or outputs different evaluation results according to the recognized number of strokes. And are included.

<Evaluation timing control>
Here, the evaluation timing control will be described. When the number of strokes recognized based on the input information is less than the number of correct character strokes, the control execution unit 23 sets the time counted after the user's input operation is lost (input operation interruption time) as the first handwriting standby mode. When time elapses, input information is evaluated. In addition, when the number of strokes recognized based on the input information is equal to or greater than the number of correct character strokes, the control execution unit 23 counts the time counted after the user's input operation is lost (input operation interruption time) as a second value. When the handwriting standby time has elapsed, the input information is evaluated.

  The input operation interruption time is a time counted from when the user performs an operation of writing a handwritten character as an answer to the problem and stops the operation. There are two patterns of the interruption time: a time that has elapsed since the user interrupted the answer and a time that has elapsed since the user ended the answer. However, the control execution unit 23 estimates that the user's answer has ended when the interruption time has passed the first handwriting standby time or the second handwriting standby time. That is, the control execution unit 23 determines the end of the answer and the interruption of the answer based on the length of the interruption time.

  The first handwriting standby time is set to be longer than the second handwriting standby time. The first handwriting standby time and the second handwriting standby time may be fixed at a predetermined time, or may be set at an arbitrary time upon receiving a setting change by the user. For example, the first handwriting standby time is set to 2 seconds, and the second handwriting standby time is set to 1 second.

  According to this configuration, the evaluation is automatically executed when the first handwriting standby time or the second handwriting standby time has elapsed. In this case, the user does not need to perform an instruction operation indicating completion of input after inputting handwritten characters. Therefore, the operation burden on the user is reduced.

  In addition, according to this configuration, when the user is in the middle of input, the evaluation is executed after waiting for a while, whereas when the user has completed the input, the evaluation can be executed promptly. Therefore, it is possible to reduce the possibility that the input is interrupted or automatically evaluated although the user is in the middle of input. In addition, when the user has completed the input, since the evaluation is made promptly, the user can smoothly advance the learning.

  The output control described later requires a process of extracting a recognized character set, but the above evaluation timing control can be applied even when the character evaluation device 10 does not perform a process of extracting a recognized character set. It is.

<Output control>
Here, output control will be described. The control execution unit 23 extracts a plurality of character candidates similar to the handwritten character indicated by the input information from the handwritten character recognition engine as a recognized character set. The handwritten character recognition engine performs a character recognition process on the handwritten character indicated by the input information by a known technique such as shape recognition. Since the accuracy of handwritten character recognition is not necessarily high, a plurality of character candidates are output together with the likelihood. The control execution unit 23 extracts a predetermined number as a recognized character set from the highest likelihood among the character candidates output by the handwritten character recognition engine. The predetermined number is, for example, eight.

  The control execution unit 23 outputs an evaluation result indicating that the answer is correct when the correct character is included in the extracted recognized character set and the stroke number recognized based on the input information matches the stroke number of the correct character. . Here, the reason why the character is determined to be correct when the extracted recognized character set includes the correct character is because the accuracy of handwritten character recognition is not necessarily high as described above. Evaluation can be made stricter by reducing the number of characters to be extracted as a recognized character set. On the other hand, the control execution unit 23 outputs an evaluation result indicating that the number of strokes is incorrect when the extracted recognized character set includes a correct character and the recognized number of strokes does not match the number of strokes of the correct character. The evaluation result output by the control execution unit 23 may be displayed on the display device of the information output device of the user I / F 13 or may be output as audio from the speaker device of the information output device of the user I / F 13. .

  In the case where the correct character is included in the extracted recognized character set and the recognized number of strokes does not match the number of correct character strokes, and the case where the recognized character set does not include the correct character, the control execution unit 23 Further, a reception screen for receiving a display operation for displaying answer options is output. While the reception screen is displayed on the display device of the information output device of the user I / F 13, the control execution unit 23 receives a display operation.

  When the display operation is accepted, the control execution unit 23 outputs a plurality of characters in the recognized character set as answer options, and outputs an evaluation result when the character selected by the user in the answer options is set as an answer. The number of answer options may be a predetermined number or may be a number set by the user. In the following description, a case where the number of answer options is set to 8 will be described.

  Even if the correct character is not included in the extracted recognized character set, the control execution unit 23 adds the correct character to the answer option if the recognized number of strokes satisfies a predetermined number of strokes. . For example, normally, eight characters in the recognized character set are the answer options, but when adding correct characters to the answer options, there are a total of eight characters of seven characters in the recognized character set and one correct character. It becomes an answer option.

  The correct character added to the answer option is inserted at a random display position or selection number of the answer option. By such an adding method, it is possible to prevent the user from specifying the answer option corresponding to the correct character only by the arrangement position or the selection number.

  The predetermined stroke number condition is the number of strokes within the allowable error range for the number of strokes of the correct character. The allowable error is, for example, a natural number immediately above the value obtained by multiplying the number of strokes of the correct character by 0.15. The allowable error may be set and changed by the user.

<Example of display screen>
Hereinafter, a specific example of a display screen displayed on the user I / F 13 by the control execution unit 23 will be described with reference to FIGS. In the following example, the recognized character set is the top eight characters having the highest similarity. If any of these 8 characters is correct, the handwritten character is determined as the correct character. The allowable error is set to a natural number immediately above the value obtained by multiplying the number of strokes of the correct character by 0.15.

  The display screen shown in FIG. 3 shows an example of a display screen in which a problem is presented by the problem presentation unit 21 and the user has not yet input a handwritten character. In the area A1 at the top of the screen, a button B1 for returning to the previous question, a text indicating the title “Practice 5”, and a button B2 for displaying an answer are displayed. In the area A2, the content of the problem is displayed. This problem is a problem of handwriting input of the kanji character “quake”, which applies to the portion of ○, in the sentence “house strong against ground ○”. In this example, the problem presentation unit 21 presents the problem content by displaying it on the display screen, but the present invention is not limited to this. For example, the problem presentation unit 21 may present the content of the problem by causing the speaker device to output a message indicating the content of the problem.

  The area A3 is an area for the user to input characters by handwriting. A button B3 for erasing handwritten characters is displayed at the lower right of the area A3. When this button B3 is clicked or tapped, the handwritten character is erased and the user can rewrite the character. In the area A4, nothing is displayed at this stage.

  FIG. 4 shows a first example of a display screen in a state where the user has input handwritten characters (before execution of evaluation) for the problem presented by the problem presentation unit 21. In this example, the user has handwritten input the correct answer “Shake” with the correct number of strokes (15 strokes).

  In this case, the control execution unit 23 determines that a correct character is included in the extracted recognized character set, and determines that the handwritten character is a correct character. In addition, the control execution unit 23 determines that the number of strokes of the handwritten character is the same as the number of strokes of the correct character. Therefore, when the second handwriting standby time has elapsed since the user's input operation has disappeared, the control execution unit 23 executes evaluation of input information. As a result, a transition is made to the display screen shown in FIG.

  The display screen shown in FIG. 5 indicates that the evaluation result is correct. In this embodiment, when the evaluation result is correct, a circle is displayed in the center of the area A3. In this example, the handwritten character is the correct character, and the number of strokes is also the correct number of strokes. In this case, in FIG. 5 and FIG. 4, the correct character “quake” is displayed with an underline in the portion that is indicated by ◯ in the area A <b> 2 of FIG. 3 and FIG. 4. In addition, the correct character “shake” is also displayed in the upper right part of the area A3.

  As shown in FIG. 5, the display screen indicating that the evaluation result is correct is displayed for a predetermined time, and thereafter, the screen automatically changes to a screen indicating the next problem. The screen showing the next problem is basically the same as FIG. 3 except that the question sentence is replaced. In this case, instead of a screen showing the next question, the screen may be changed to a screen showing questions and answers, explanations, total scores, and the like.

  FIG. 6 shows a second example of the display screen in a state where the user inputs handwritten characters (after execution of evaluation) for the problem presented by the problem presentation unit 21. In addition, the display screen before execution of evaluation differs from the display screen of FIG. 4 only in handwritten characters, and is basically the same.

  In this example, the user inputs the correct letter “quake” by handwriting. In addition, the correct character “Shiki” is included in the eight characters of the recognized character set. However, the number of strokes is smaller than the correct number of strokes (15 strokes) (14 strokes). This number of strokes satisfies a predetermined number of strokes condition.

  In this case, the control execution unit 23 determines that a correct character is included in the extracted recognized character set, and determines that the handwritten character is a correct character. On the other hand, the control execution unit 23 determines that the number of strokes of handwritten characters is less than the number of strokes of correct characters. For this reason, the control execution unit 23 evaluates the input information when the interruption time of the user's input operation has passed the first handwriting standby time. As a result, the display screen shown in FIG. 6 is displayed.

  The display screen shown in FIG. 6 indicates that the evaluation result indicates that the number of strokes of handwritten characters is incorrect. In this case, in FIG. 6 and FIG. 4, the correct character “quake” is displayed with an underline in the portion that is indicated by ◯ in the area A <b> 2 of FIG. 3 and FIG. 4. However, in the upper right part of the area A3, x is displayed superimposed on the number of strokes. This indicates that the number of strokes is incorrect.

  In the area A4, a button B4 to which a character to select a written character from candidates is added is displayed. This button B4 is a button for displaying answer options. When the user taps or clicks the button B4, the display transitions to the display screen shown in FIG.

  On the display screen shown in FIG. 7, a plurality of buttons B5 which are answer options are displayed in a region A4. These are 8 characters that indicate the extracted recognition character set, and each of “zero”, “seismic”, “thunder”, “cloud”, “ambience”, “曾”, “den”, “葵” It is a character. When the user selects any one of these, an evaluation result when the answer option is set as an answer is displayed.

  For example, if the user selects the button B5 indicating “quake” which is a correct character, the screen transitions to the display screen shown in FIG. 8, and a display screen indicating that the evaluation result is correct is displayed. On the other hand, when the user selects the button B5 indicating “zero” which is not the correct character, the screen transitions to the display screen shown in FIG. 9, and a display screen indicating that the evaluation result is incorrect is displayed. In the case of an incorrect answer, the selected character “zero” is displayed with an underline in the area A2. Further, in the upper right part of the area A3, x is displayed superimposed on the selected character “zero”.

  FIG. 10 shows a third example of the display screen in a state where the user inputs handwritten characters (after execution of evaluation) for the problem presented by the problem presentation unit 21. In addition, the display screen before execution of evaluation differs from the display screen of FIG. 4 only in handwritten characters, and is basically the same.

  In this example, the user inputs the character “heart”, which is an incorrect answer, by handwriting. Further, since the similarity between the “heart” input by handwriting and the correct character “shake” is low, the correct character “shake” is not included in the eight characters of the recognized character set. The number of strokes is smaller than the correct number of strokes (15 strokes) (4 strokes). The number of strokes does not satisfy a predetermined stroke number condition.

  In this case, the control execution unit 23 determines that the correct character is not included in the extracted recognized character set and determines that the handwritten character is an incorrect character. Further, the control execution unit 23 determines that the number of strokes of handwritten characters is less than the number of strokes of correct characters. For this reason, the control execution unit 23 evaluates the input information when the interruption time of the user's input operation has passed the first handwriting standby time. As a result, the display screen shown in FIG. 10 is displayed.

  The display screen illustrated in FIG. 10 indicates that the evaluation result indicates that the number of strokes of handwritten characters is incorrect. In this case, in FIG. 10, the incorrect character “heart” recognized based on the user input information is displayed with an underline in the portion that is indicated by ◯ in the area A <b> 2 of FIGS. 3 and 4. Further, in the upper right part of the area A3, x is displayed superimposed on the incorrect character “heart” recognized based on the user input information.

  In the area A4, a button B4 to which a character to select a written character from candidates is added is displayed. This button B4 is a button for displaying answer options. When the user taps or clicks the button B4, the display transitions to the display screen shown in FIG.

  In the display screen shown in FIG. 11, a plurality of buttons B5 as answer options are displayed in the area A4. These are 8 characters indicating the extracted recognition character set, which are “heart”, “necessary”, “屯”, “core”, “response”, “public”, “four”, “buddha”, respectively. It is a character. These eight letters do not include the correct letter “Shiki”. When the user selects any one of these, an evaluation result when the answer option is an answer is displayed. However, the evaluation result of the incorrect answer is displayed no matter which answer option is selected by the user. On the display screen as shown in FIGS. 10 and 11, the user may rewrite the handwritten character by clicking or tapping the button B3 in the area A3, or may further rewrite in the area A3. Good.

  FIG. 12 shows a fourth example of a display screen in a state where the user inputs handwritten characters (after execution of evaluation) for the problem presented by the problem presentation unit 21. In addition, the display screen before execution of evaluation differs from the display screen of FIG. 4 only in handwritten characters, and is basically the same.

  In this example, the user inputs the correct letter “quake” by handwriting. However, the handwritten character is not recognized correctly, and the character “zero”, which is an incorrect answer, is recognized. Since “Shin” and “Zero” have low similarity, the correct character “Shin” is not included in the 8 characters of the recognized character set. However, the number of strokes recognized based on the input information is smaller than the correct number of strokes (15 strokes) (13 strokes). This number of strokes satisfies a predetermined number of strokes condition.

  In this case, the control execution unit 23 determines that the correct character is not included in the extracted recognized character set. Further, the control execution unit 23 determines that the number of strokes of handwritten characters is less than the number of strokes of correct characters. For this reason, the control execution unit 23 evaluates the input information when the interruption time of the user's input operation has passed the first handwriting standby time. As a result, the display screen shown in FIG. 12 is displayed.

  The display screen shown in FIG. 12 indicates that the handwritten character is the character “zero” which is an incorrect answer. In this case, in FIG. 12, the incorrect answer character “zero” is displayed with an underline in the portion that is indicated by ◯ in the area A <b> 2 of FIGS. 3 and 4. In the upper right part of the area A3, x is displayed superimposed on the incorrect answer character “zero”.

  In the area A4, a button B4 to which a character to select a written character from candidates is added is displayed. This button B4 is a button for displaying answer options. When the user taps or clicks the button B4, the display transitions to the display screen shown in FIG.

  In the display screen shown in FIG. 13, a plurality of buttons B5 that are answer options are displayed in a region A4. These are 8 characters in which 1 character out of 8 characters indicating the extracted recognized character set is replaced with the correct character “quake”, “cloud”, “atmosphere”, “lightning”, “zero”, It is the letters “quake”, “曾”, “den”, “葵”. In addition, the correct letter “quake” is placed at a random position. When the user selects any one of these, an evaluation result when the answer option is an answer is displayed.

  For example, when the user selects the button B5 indicating the correct character “quake”, the screen transitions to the display screen shown in FIG. 14, and a display screen indicating that the evaluation result is correct is displayed. On the other hand, when the user selects the button B5 indicating “zero” which is not a correct character, a display screen (not shown) indicating that the evaluation result is incorrect is displayed.

<Process flow>
Hereinafter, an example of a control process executed by the character evaluation apparatus 10 will be described with reference to FIG. This process is executed for each problem. In this example, it is assumed that there is no cancellation of processing or rewriting of handwritten characters by the user.

  First, the problem presentation unit 21 of the character evaluation device 10 presents a problem to the user (step S101). Thereby, for example, the display screen shown in FIG. 3 is displayed. The acquisition unit 22 acquires input information indicating handwritten characters input by the user (step S102). The control execution unit 23 recognizes the number of strokes based on the input information for the evaluation timing control (step S103).

  Here, the control execution unit 23 determines whether it is the evaluation timing (step S104). Specifically, the control execution unit 23 determines whether it is the evaluation timing based on whether the interruption time of the user's input operation has passed a predetermined time. The predetermined time differs depending on the comparison between the recognized number of strokes and the number of strokes of the correct character, and is the first handwriting standby time or the second handwriting standby time.

  If it is determined that it is not the evaluation timing (step S104; N), the control execution unit 23 returns to step S102 and continues to acquire the input information and recognize the number of strokes based on the input information. On the other hand, when it is determined that it is the evaluation timing (step S104; Y), the control execution unit 23 executes evaluation of the input information (step S105).

  In this case, the control execution unit 23 displays a display screen after execution of the evaluation (step S106). The display screen after execution of evaluation varies depending on the evaluation of input information. For example, the display screen of any of FIGS. 5, 6, 10, and 12 is displayed.

  Here, the control execution unit 23 determines whether or not there is a transition of the display screen (step S107). For example, on the display screen shown in FIG. 5, there is no transition of the display screen by a user operation. In this case, it is determined that there is no transition of the display screen (step S107; Y).

  On the other hand, on the display screen shown in FIGS. 6, 10, and 12, a button B4 for displaying answer options is displayed. In this case, the user may change the display screen with the button B4. In this case, it is determined that there is a transition of the display screen (step S107; N). If it is determined that there is a display screen transition, the control execution unit 23 displays the answer options and accepts the user's selection (step S108). In this case, the control execution unit 23 recognizes that the selected answer option is the input information indicating the user's answer, and returns to step S105 to execute the evaluation of the input information again.

  Since the character evaluation device 10 according to the present embodiment also evaluates the number of strokes of handwritten characters (strictly, the number of input strokes), the evaluation accuracy can be improved. In addition, the character evaluation device 10 automatically performs evaluation at the timing when the interruption time of the input operation has passed the first handwriting standby time or the second handwriting standby time. In this case, the user does not need to perform an instruction operation indicating that the input of handwritten characters has been completed. Therefore, it is possible to reduce the operation burden on the user. Further, even if erroneous recognition occurs, a remedy is provided to the user in order to display answer options. Therefore, according to the character evaluation device 10 according to the present embodiment, user convenience can be improved.

  As shown in FIGS. 6, 10, and 12, the character evaluation device 10 displays a button B <b> 4 for displaying answer options. That is, the character evaluation device 10 does not automatically display the answer options, but displays the answer options only when the user performs an operation to display the answer options. Accordingly, it is possible to prevent answer options that can be hints from being displayed against the user's intention.

  This is the end of the description of the embodiment. However, the above embodiment is merely an example. Therefore, the specific configuration of the character evaluation device 10, the contents of the control processing, and the like are not limited to those described in the above embodiment. Hereinafter, modifications of the embodiment will be described.

(Modification)
In the above embodiment, the flow of processing has been described as an example. However, the processing flow is not limited to that described in the above embodiment. The order and contents of the processing can be changed as appropriate. For example, in the control process shown in FIG. 15, the order of the processes may be changed, or any of the processes may be omitted.

  Moreover, the character evaluation apparatus 10 which concerns on this indication may implement | achieve the function, for example, when a computer runs a program irrespective of the said apparatus. A program (character evaluation program) for realizing the functions of the character evaluation device 10 is a USB (Universal Serial Bus) memory, a CD-ROM (Compact Disc-Read Only Memory), a DVD (Digital Versatile Disc), an HDD (Hard Disc). Drive) or a computer-readable recording medium, or may be downloaded to a computer via a network.

  The character evaluation program may be a program for realizing the functions of the character evaluation device 10 by cooperating a plurality of computers. That is, the character evaluation device 10 may be composed of a plurality of devices.

  The preferred embodiments of the present disclosure have been described above. However, the present disclosure is not limited to the specific embodiments, and the present disclosure includes the invention described in the claims and an equivalent scope thereof. It is. In addition, the configurations of the devices described in the above embodiments and modifications can be combined as appropriate as long as there is no technical contradiction.

DESCRIPTION OF SYMBOLS 10 ... Character evaluation apparatus, 11 ... CPU, 12 ... Main memory, 13 ... User I / F, 14 ... Communication I / F, 15 ... External memory, 21 ... Problem presentation part, 22 ... Acquisition part, 23 ... Control execution part 24 storage unit

A character evaluation program according to an embodiment of the present disclosure includes one or a plurality of computers, a problem presenting unit that presents a problem, and at least one handwritten character input by a user with respect to the problem presented by the problem presenting unit Acquisition means for acquiring the input information indicating the input information, evaluation of the input information based on a comparison between the character and stroke number recognized based on the input information acquired by the acquisition means and the correct character and stroke number, and a handwritten character recognition engine When a plurality of character candidates similar to the handwritten character indicated by the input information are extracted as a recognized character set, a plurality of characters are output as answer choices, and the recognized character set does not include a correct character even, if recognized strokes are predetermined number of strokes condition is satisfied, the control execution means for adding the correct characters to answer options function as, of That.

The character evaluation method according to an embodiment of the present disclosure is a character evaluation method realized by executing a predetermined computer-readable instruction by one or a plurality of processors, and presents a problem. An acquisition step for acquiring input information indicating at least one handwritten character input by the user for the problem presented in the problem presentation step, and a character and stroke count recognized based on the input information acquired in the acquisition step The input information is evaluated based on the comparison between the correct character and the number of strokes, and a plurality of character candidates similar to the handwritten character indicated by the input information are extracted from the handwritten character recognition engine as a recognized character set. Multiple characters are output as answer options, and even if the recognized character set does not include the correct character And when strokes are predetermined number of strokes condition is satisfied, characterized in that it comprises a control execution step of adding correct characters answer options, a.

In addition, the character evaluation device according to an embodiment of the present disclosure includes a problem presentation unit that presents a problem, and input information that indicates at least one handwritten character input by the user with respect to the problem presented by the problem presentation unit The input unit evaluates the input information based on the comparison of the character and stroke number recognized based on the input information acquired by the acquisition unit and the correct character and stroke number, and receives input information from the handwritten character recognition engine. Even if a plurality of character candidates similar to the handwritten character indicated by are extracted as a recognized character set, a plurality of characters of the recognized character set are output as answer options, and the correct character is not included in the recognized character set A control execution unit that adds a correct character to the answer choice when the recognized number of strokes satisfies a predetermined number of strokes condition .

Claims (8)

One or more computers,
Problem presentation means for presenting problems,
Acquisition means for acquiring input information indicating at least one handwritten character input by the user for the problem presented by the problem presentation means;
The input information is evaluated based on the comparison between the character and stroke number recognized based on the input information acquired by the acquisition means and the correct character and stroke number, and different control is performed according to the recognized stroke number. Control execution means,
Character evaluation program to function as The control execution means includes
When the recognized number of strokes is less than the number of strokes of the correct character, when the interruption time of the user's input operation has passed the first handwriting standby time, the input information is evaluated,
If the recognized number of strokes is equal to or greater than the number of strokes of the correct character, when the interruption time of the user's input operation has passed the second handwriting standby time, the input information is evaluated,
The first handwriting standby time is longer than the second handwriting standby time,
The character evaluation program according to claim 1, wherein: The control execution means includes
Extracting a plurality of character candidates similar to the handwritten character indicated by the input information from a handwritten character recognition engine as a recognized character set;
If the recognized character set includes a correct character and the recognized stroke number matches the stroke number of the correct character, an evaluation result indicating that it is a correct answer is output,
When the correct character is included in the recognized character set and the recognized stroke number does not match the stroke number of the correct character, an evaluation result indicating that the stroke number is incorrect is output.
The character evaluation program according to claim 1 or 2, characterized by the above-mentioned. The control execution means includes
In the case where the correct character is included in the recognized character set and the recognized number of strokes does not match the number of strokes of the correct character, and the case where the correct character is not included in the recognized character set Output a reception screen that accepts display operations to display
When the display operation is accepted, a plurality of characters in the recognized character set are output as the answer choices, and an evaluation result when a character selected by the user in the answer choices is output is output.
The character evaluation program according to claim 3, wherein: The control execution means includes
Even if the correct character is not included in the recognized character set, if the recognized stroke number satisfies a predetermined stroke number condition, the correct character is added to the answer option.
The character evaluation program according to claim 4, wherein: The predetermined number of strokes condition is a number of strokes within an allowable error range for the number of strokes of the correct character.
The character evaluation program according to claim 5. A character evaluation method realized by one or more processors executing predetermined computer-readable instructions,
A problem presentation step to present the problem;
An acquisition step of acquiring input information indicating at least one handwritten character input by the user with respect to the problem presented in the problem presentation step;
The input information is evaluated based on the comparison between the character and stroke number recognized based on the input information acquired in the acquisition step and the correct character and stroke number, and different control is performed according to the recognized stroke number. A control execution step;
The character evaluation method characterized by including. A problem presentation section for presenting problems,
An acquisition unit for acquiring input information indicating at least one handwritten character input by the user for the problem presented by the problem presentation unit;
The input unit evaluates the input information based on the comparison between the character and stroke number recognized based on the input information acquired by the acquisition unit and the correct character and stroke number, and executes different control depending on the recognized stroke number. A control execution unit;
A character evaluation apparatus comprising: