JP2016187166A - Nuisance phone call detection device, nuisance phone call detection method and nuisance phone call detection program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nuisance phone call detection device capable of preventing erroneous detection.SOLUTION: A terminal apparatus 100 has a registration section 140 that, when receiving a registration request of a new phone number, registers the phone number in a telephone directory table 110a while associating with a registration date. The terminal apparatus 100 also has an evaluation value calculation section 160 that, when the lapsed days from the registration date have exceed a threshold level, sets the weight of the newly registered phone number to an infinitely small value; to thereby eliminate the same from evaluation object of nuisance phone calls.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a nuisance call detection device and the like.

  Telephone frauds such as wire fraud and ole fraud using terminals such as mobile phones are rampant. Recently, the technique has become more sophisticated. For example, there is a technique in which a telephone call “Renew because the phone number has changed” is made in advance and the phone number is updated, and then fraud is performed later. This telephone call is called an appointment call.

  The following conventional technologies exist as countermeasures against ole fraud using the above appointment phone. For example, such conventional technology calculates a weight based on the elapsed date from the phone number update date to the first incoming call, and calculates an evaluation value that combines this weight with the analysis result of the call voice. It is determined whether or not there is.

  For example, according to the conventional technology, the date closer to the renewal date is more likely to cause telephone fraud, so the greater the number of days since the renewal date, the smaller the weight and the less likely it is a telephone fraud To do. In the prior art, for a newly registered telephone number, it is determined whether or not it is a telephone fraud using a certain weight, not limited to the date elapsed from the registered date of registration.

JP 2013-157923 A JP 2012-070218 A JP 2007-139864 A

  However, the above-described conventional technology has a problem that it is not possible to suppress erroneous detection of annoying calls.

  In general, when a user registers a new phone number in the phone book, after telling his / her phone number to the other party, he / she calls his / her mobile phone and calls the incoming phone number. A method of registering in a book is widely used. That is, the newly registered telephone number is often the telephone number of a user's acquaintance, and is likely to be a safe telephone number.

  Here, in the above-described conventional technology, a newly registered phone number is not limited to the date that has elapsed since the registration date, and it is determined whether the phone number is a fraudulent phone call using a certain weight. For this reason, there is a case where a nuisance call is erroneously detected because a certain weight is used even though the phone number is clearly safe.

  In one aspect, an object of the present invention is to provide a nuisance call detection device, a nuisance call detection method, and a nuisance call detection program that can suppress erroneous detection of a nuisance call.

  In the first plan, the nuisance call detection device includes a registration unit and an evaluation unit. When the registration unit receives a registration request for a new telephone number, the registration unit registers the telephone number and the registration date in association with each other in the table. When the evaluation unit detects a telephone number that has passed a predetermined number of days from the registration date based on the table and the current date, the evaluation unit excludes the telephone with the detected telephone number from the evaluation target of the nuisance call. Give a good evaluation value.

  It is possible to suppress false detection of unwanted calls.

FIG. 1 is a diagram illustrating a configuration of a system according to the present embodiment. FIG. 2 is a functional block diagram illustrating the configuration of the terminal device according to the present embodiment. FIG. 3 is a diagram illustrating an example of the data structure of the telephone directory table. FIG. 4 is a diagram illustrating an example of a data structure of the weight determination information. FIG. 5 is a functional block diagram illustrating the configuration of the server according to the present embodiment. FIG. 6 is a diagram illustrating an example of cumulative frequency distribution information. FIG. 7 is a diagram illustrating an example of the data structure of the update information. FIG. 8 is a flowchart illustrating the processing procedure of the terminal device according to the present embodiment. FIG. 9 is a diagram illustrating an example of a computer that executes a nuisance call detection program.

  Hereinafter, a nuisance call detection device, a nuisance call detection method, and a nuisance call detection program according to the present application will be described with reference to the accompanying drawings. Note that this embodiment does not limit the disclosed technology. Each embodiment can be appropriately combined within a range in which processing contents are not contradictory.

  FIG. 1 is a diagram illustrating a configuration of a system according to the present embodiment. As shown in FIG. 1, this system includes terminal devices 100 a, 100 b, 100 c and a server 200. The terminal devices 100a to 100c and the server 200 are connected to each other via the network 50.

  Here, the terminal devices 100a to 100c are shown as an example, but the system according to the present embodiment may include other terminal devices. Hereinafter, the terminal devices 100 a to 100 c are collectively referred to as the terminal device 100 as appropriate. The terminal device 100 is an example of a nuisance call detection device.

  The terminal device 100 is a device that allows a user to select and input a telephone number of a contact to connect a telephone line with another terminal device and perform a voice call between users. It is. When the terminal device 100 receives an incoming call from another terminal device, the terminal device 100 connects a telephone line between the partner terminal device and the terminal device 100. The terminal device 100 corresponds to, for example, a mobile phone, a smartphone, a telephone, a tablet terminal having a telephone function, a PC (Personal Computer), and the like.

  Further, when receiving an incoming call from another terminal device, the terminal device 100 analyzes the other party's call voice to calculate an evaluation value, and determines whether the call is a nuisance call based on the evaluation value. . Such an evaluation value is a value obtained by adding the value obtained from the analysis of the call voice and the weight according to the number of days elapsed from the date when the telephone number is newly registered or updated. The terminal device 100 determines that the call is a nuisance call when the evaluation value is equal to or greater than a predetermined threshold. For example, the terminal device 100 determines that the call from the telephone number is not annoying as the number of days elapsed from the date of newly registering the telephone number increases.

  If the terminal device 100 determines that the call is a nuisance call, the terminal device 100 warns the user. If the terminal device 100 determines that the call is a nuisance call, the terminal device 100 notifies the server 200 of the phone number of the phone determined to be a nuisance call and information on the number of days that have elapsed since the phone number was registered. .

  The server 200 collects information on whether or not the telephone number of the telephone determined to be a nuisance call has been updated from each terminal device 100 and information on the number of days elapsed until the first nuisance call is received. Device. Based on the relationship between the number of days elapsed and the number of nuisance calls, the server 200 determines a weight according to the number of days used when each terminal device 100 calculates an evaluation value, and each terminal device 100 Notify

  Next, the configuration of the terminal device 100 shown in FIG. 1 will be described. FIG. 2 is a functional block diagram illustrating the configuration of the terminal device according to the present embodiment. As shown in FIG. 2, the terminal device 100 includes a storage unit 110, a call voice acquisition unit 120, a telephone number acquisition unit 130, a registration unit 140, a weight determination unit 150, an evaluation value calculation unit 160, The determination unit 170, the warning unit 180, and the update unit 190 are included. For example, the weight determination unit 150, the evaluation value calculation unit 160, and the determination unit 170 correspond to the evaluation unit.

  The storage unit 110 includes a telephone directory table 110a and weight determination information 110b. For example, the storage unit 110 corresponds to a storage device such as a semiconductor memory element such as a random access memory (RAM), a read only memory (ROM), and a flash memory.

  The phone book table 110a is a table that holds information on telephone numbers of contacts. FIG. 3 is a diagram illustrating an example of the data structure of the telephone directory table. As shown in FIG. 3, the telephone directory table 110a associates a contact address, a telephone number, a registration date, and an update date. The contact indicates the name of the contact. The telephone number is a telephone number corresponding to the contact address. The registration date indicates the date when the telephone number is newly registered. The update date indicates the date on which the telephone number is updated. When a telephone number is newly registered and the telephone number has not been updated, the update date is blank. The latest telephone number corresponding to the contact address is registered as the telephone number of the telephone book table 110a. The phone book table 110a is periodically compared with information registered in the phone book application that the terminal device 100 has in advance, and the date when the difference is found may be set as the registration date or the update date. Good.

  For example, for the contact “Taro Fujitsu”, the telephone number “123-456-789” is newly registered as “March 20, 2015”, and if the telephone number has not been updated thereafter, FIG. The record shown in the first line is registered.

  For example, after registering a new phone number “January 23, 2015” for the contact “Fujitsu Jiro”, the phone number is changed to “123-456-788” on “February 22, 2015”. When updated, the record shown in the second line in FIG. 3 is registered.

  Returning to the description of FIG. The weight determination information 110b is information used for determining the weight. Such weights are used when calculating an evaluation value to be described later. FIG. 4 is a diagram illustrating an example of a data structure of the weight determination information. In the example illustrated in FIG. 4, a line segment 60a is a line segment indicating the relationship between the number of days elapsed from the update date to the current date and the weight. The line segment 60b is a line segment indicating the relationship between the number of days elapsed from the registration date to the current date and the weight.

  For example, as will be described later, for a telephone number that is newly registered and not updated thereafter, the weight is specified based on the line segment 60b. On the other hand, for the telephone numbers newly registered and subsequently updated, the weight is specified based on the line segment 60a. As shown in FIG. 4, since the weight corresponding to the number of elapsed days is larger in the line segment 60a than in the line segment 60b, the updated telephone number is more than the newly registered telephone number. It becomes easy to be determined as a nuisance call.

  Returning to the description of FIG. The call voice acquisition unit 120 has a telephone line connected between the terminal device 100 and another terminal device, and a call between the first user of the terminal device 100 and the second user of the other terminal device has started. In this case, the processing unit acquires the call voice of the second user. The call voice acquisition unit 120 outputs information on the call voice of the second user to the evaluation value calculation unit 160.

  When a telephone line is connected between the terminal device 100 and another terminal device, the telephone number acquisition unit 130 acquires the telephone number of the other terminal device, and uses the acquired telephone number as the weight determination unit 150 and It is a processing unit that outputs to the determination unit 170. When the other terminal device is set to non-notify telephone number, the fact that the telephone number is not notified is output to the weight determination unit 150.

  In addition, the telephone number acquisition unit 130 receives a new registration request for telephone numbers or a request for updating telephone numbers. When the telephone number acquisition unit 130 receives a new registration request, the telephone number acquisition unit 130 outputs information on the telephone number for new registration to the registration unit 140. The information on the telephone number for new registration includes information on the contact information and the telephone number for new registration. The telephone number acquisition unit 130 may acquire a telephone number to be newly registered from an input unit (not shown), or may acquire a telephone number received from another terminal device as a telephone number to be newly registered. .

  When receiving an update request, the telephone number acquisition unit 130 outputs information on the telephone number to be updated to the registration unit 140. The telephone number information to be updated includes contact information and updated telephone number information. The telephone number acquisition unit 130 may acquire a telephone number to be updated from an input unit (not shown), or may acquire a telephone number received from another terminal device as a telephone number to be updated.

  The registration unit 140 is a processing unit that registers telephone number information in the telephone directory table 110a. A process when the registration unit 140 acquires information on a telephone number to be newly registered from the telephone number acquisition unit 130 will be described. The registration unit 140 registers the contact information, the telephone number, and the registration date in the telephone book table 110a in association with each other. The registration unit 140 acquires the current date from the timer and sets the acquired date as the registration date.

  Next, processing when the registration unit 140 acquires information on the telephone number to be updated from the telephone number acquisition unit 130 will be described. The registration unit 140 searches the telephone directory table 110a for a record having the same contact as the contact included in the updated telephone number information. The registration unit 140 updates the previous telephone number for the retrieved record with the telephone number to be updated, and registers the update date. The registration unit 140 acquires the current date from the timer and sets the acquired date as the update date.

  The weight determination unit 150 is a processing unit that determines the weight corresponding to the telephone number based on the weight determination information 110b. The weight determination unit 150 outputs the determined weight information to the evaluation value calculation unit 160. Hereinafter, processing of the weight determination unit 150 will be described.

  When the weight determination unit 150 acquires the telephone number information from the telephone number acquisition unit 130, the weight determination unit 150 compares the acquired telephone number with the telephone number table 110a, and the acquired telephone number is a newly registered telephone number. Or the updated telephone number. When the same telephone number as the acquired telephone number is registered in the telephone book table 110a, the registration date is set, and the update date is blank, the weight determination unit 150 newly registers the telephone number. It is determined that the received telephone number.

  When the same phone number as the acquired phone number is registered in the phone book table 110a and the update date is set, the weight determination unit 150 is the updated phone number. Is determined.

  Next, a process in which the weight determination unit 150 determines the weight of a newly registered telephone number will be described. The weight determination unit 150 acquires the current date from the timer, and specifies the number of days from the registration date of the telephone number to the current date as the elapsed days. The weight determination unit 150 determines the weight of the newly registered telephone number by comparing the line segment 60b of the weight determination information 110b shown in FIG. 4 with the elapsed days. For example, the weight is “0.5” when the number of elapsed days is from 0 to 4 days. When the number of elapsed days exceeds 4, the weight gradually decreases, and when the number of elapsed days exceeds 6, the weight becomes zero.

  A process in which the weight determination unit 150 determines the weight of the updated telephone number will be described. The weight determination unit 150 acquires the current date from the timer, and specifies the number of days from the telephone number update date to the current date as the number of elapsed days. The weight determination unit 150 determines the weight of the updated telephone number by comparing the line segment 60a of the weight determination information 110b shown in FIG. 4 with the elapsed days. For example, the weight is “1.0” when the number of elapsed days is from 0 to 4 days. When the number of elapsed days exceeds 4, the weight gradually decreases, and when the number of elapsed days exceeds 8, the weight becomes zero.

  By the way, when the telephone number is not notified or the telephone number does not exist in the telephone book table 110a, the weight determination unit 150 determines the weight of the telephone number as “1.0”. The weight value can be appropriately changed by the administrator.

  The evaluation value calculation unit 160 is a processing unit that calculates an evaluation value. The evaluation value calculation unit 160 acquires call voice information from the call voice acquisition unit 120, and compares the call voice with a table in which predetermined keywords and scores are associated with each other, thereby calculating an evaluation value. Although illustration is omitted here, the keywords included in the table include various keywords that are often used in nuisance calls such as “Oleore” and “Transfer”.

  The evaluation value calculation unit 160 calculates an evaluation value by accumulating the points associated with the keyword every time the keyword included in the call voice and the keyword in the table are hit. The evaluation value calculation unit 160 corrects the evaluation value based on the weight after calculating the evaluation value using the table. For example, the evaluation value calculation unit 160 corrects the evaluation value based on Expression (1). The evaluation value calculation unit 160 outputs the corrected evaluation value information to the determination unit 170.

  Evaluation value after correction = Evaluation value before correction × Weight (1)

  In this embodiment, the evaluation value calculation unit 160 uses only the call voice of the second user, but is not limited to the call voice of the second user, only the call voice of the first user, and A method of determining a nuisance call using a call voice in which a call voice of the first user and a call voice of the second user are mixed may be used.

  Note that, for a newly registered telephone number, when the number of days elapsed from the registration date exceeds the first number of days, the weight is 0, so the evaluation value after correction is 0. For this reason, the newly registered telephone number is excluded from the evaluation target of the nuisance call when the number of days elapsed from the registration date exceeds the first number of days. In this example, the weight is set to 0 when the number of days elapsed from the registration date exceeds the first number of days. However, a small value other than 0 may be entered.

  Further, for the updated telephone number, when the number of days elapsed from the update date exceeds the second number of days, the weight is 0, so the evaluation value after correction is 0. The second number of days is larger than the first number of days. For this reason, the updated telephone number is excluded from the evaluation target of the nuisance call when the number of days elapsed from the update date exceeds the second number of days. In this example, the weight is set to 0 when the number of days elapsed from the update date exceeds the second number of days, but a small value other than 0 may be entered.

  The determination unit 170 is a processing unit that determines whether a call from another terminal device is a nuisance call. For example, the determination unit 170 acquires the corrected evaluation value from the evaluation value calculation unit 160, compares the evaluation value with a predetermined threshold value, and when the evaluation value is equal to or greater than the predetermined threshold value, another terminal device It is determined that the call from is a nuisance call. If the determination unit 170 determines that the call from another terminal device is a nuisance call, the determination unit 170 outputs a warning output request to the warning unit 180.

  If the determination unit 170 determines that the call from another terminal device is a nuisance call, the determination unit 170 generates nuisance call information and notifies the server 200 of the nuisance call information. Such nuisance call information includes whether or not the telephone number of another terminal device is updated and the number of days elapsed. The determination unit 170 acquires the telephone number of the other terminal device from the telephone number acquisition unit 130 and the presence / absence of the update of the telephone number of the other terminal device from the weight determination unit 150, respectively. Also, the determination unit 170 specifies the elapsed days of the telephone numbers of other terminal devices by performing the same process as the above-described process of determining the elapsed days of the telephone numbers by the weight determination unit 150.

  The warning unit 180 is a processing unit that issues a warning to the user of the terminal device 100 when a warning output request is received from the determination unit 170. The warning unit 180 may issue a warning by voice or display a warning on a display.

  The update unit 190 is a processing unit that updates the weight determination information with the received update information when the update information of the weight determination information is received from the server 200.

  Next, the configuration of the server 200 shown in FIG. 1 will be described. FIG. 5 is a functional block diagram illustrating the configuration of the server according to the present embodiment. As illustrated in FIG. 5, the server 200 includes a communication unit 210, a storage unit 220, and a control unit 230.

  The communication unit 210 is a processing unit that performs data communication with the terminal device 100 or another external device. A control unit 230 described below exchanges data with the terminal device 100 via the communication unit 210. The communication unit 210 corresponds to a communication device, for example.

  The storage unit 220 includes a nuisance call information DB 220a. The storage unit 220 corresponds to a storage device such as a semiconductor memory element such as a RAM, a ROM, or a flash memory.

  The nuisance call information DB 220a is information for storing the nuisance call information transmitted from each terminal device 100. As described above, the nuisance call information transmitted from each terminal apparatus 100 includes information on whether or not the telephone number of the terminal apparatus that has been determined to be a nuisance call has been updated, and information on the number of elapsed days. Including.

  The control unit 230 includes an acquisition unit 231 and an update information generation unit 232. The control unit 230 corresponds to, for example, an integrated device such as an application specific integrated circuit (ASIC) or a field programmable gate array (FPGA). The control unit 230 corresponds to an electronic circuit such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit).

  The acquisition unit 231 is a processing unit that acquires nuisance call information from each terminal device 100. The acquisition unit 231 registers the acquired nuisance call information in the nuisance call information DB 220a.

  The update information generation unit 232 is a processing unit that generates update information of the weight determination information based on the nuisance call information DB 220a. Hereinafter, an example of processing of the update information generation unit 232 will be described. The update information generation unit 232 generates cumulative frequency distribution information obtained by counting the elapsed days and the number of nuisance calls based on the nuisance call information DB 220a for each of the registration date and the update date.

  FIG. 6 is a diagram illustrating an example of cumulative frequency distribution information. The shaded bar graph in FIG. 6 shows the relationship between the number of days elapsed from the registration date of the newly registered phone number and the number of nuisance calls. The white bar graph in FIG. 6 shows the relationship between the number of days elapsed from the update date of the updated phone number and the number of nuisance calls. Here, as an example, the number of nuisance calls is expressed as cumulative frequency.

  The update information generation unit 232 generates cumulative distribution information based on a predetermined number or more of nuisance call information, and then generates update information based on the cumulative distribution information. For example, the update information generation unit 232 normalizes so that the weight of the elapsed days with the maximum cumulative frequency is “1.0”, so that the relationship between the elapsed days from the registration date and the weight, and the update date The relationship between the number of days elapsed since and the weight is obtained, and update information is generated.

  FIG. 7 is a diagram illustrating an example of the data structure of the update information. In the example illustrated in FIG. 7, the line segment 70a is a line segment indicating the relationship between the number of days elapsed from the update date and the weight. The line segment 70b is a line segment indicating the relationship between the number of days elapsed from the registration date and the weight. For example, since the cumulative frequency of the white bar graph with the elapsed days “1” shown in FIG. 6 is maximized, the weight of the elapsed days “1” of the line segment 70a is “1.0”. The update information generation unit 232 transmits the generated update information to each terminal device 100, and updates the weight determination information 110b with the update information.

  Next, a processing procedure of the terminal device 100 according to the present embodiment will be described. FIG. 8 is a flowchart illustrating the processing procedure of the terminal device according to the present embodiment. As shown in FIG. 8, when a call is started by a user (step S101), the terminal device 100 determines whether or not the telephone number of another terminal device is not notified (step S102).

  If the telephone number is not notified (Yes at Step S102), the weight determination unit 150 of the terminal device 100 proceeds to Step S106. On the other hand, when the telephone number is not non-notified (step S102, No), the telephone number acquisition unit 130 of the terminal apparatus 100 acquires the telephone number of another terminal apparatus (step S103).

  The weight determination unit 150 compares the telephone book table 110a with the acquired telephone number (step S104), and determines whether or not a telephone number is registered in the telephone book table 110a (step S105). If the telephone number is not registered in the telephone book table 110a (No at Step S105), the weight determining unit 150 sets the weight to “1.0” (Step S106), and proceeds to Step S108.

  On the other hand, when the telephone number is registered in the telephone directory table 110a (Yes in step S105), the weight determination unit 150 distinguishes whether the telephone number is newly registered or updated and the process progresses. The weight is determined based on the number of days (step S107). The evaluation value calculation unit 160 of the terminal device 100 calculates an evaluation value based on the call voice and the weight (step S108).

  The determination unit 170 of the terminal device 100 determines whether or not the evaluation value is greater than or equal to a threshold value (step S109). If the evaluation value is greater than or equal to the threshold (Yes at Step S109), the determination unit 170 causes the warning unit 180 to output a warning (Step S110). On the other hand, the determination part 170 complete | finishes a process, when an evaluation value is less than a threshold value (step S109, No).

  Next, effects of the terminal device 100 according to the present embodiment will be described. When the terminal device 100 receives a registration request for a new telephone number, the terminal apparatus 100 registers the telephone number and the registration date in association with each other in the telephone book table 110a. Then, when the number of days elapsed from the registration date is equal to or greater than the threshold, the terminal device 100 sets the weight of the newly registered phone number to 0, thereby excluding it from the evaluation target for the nuisance call. For this reason, it is possible to suppress erroneous detection of annoying calls.

  When receiving an update request for a telephone number registered in the telephone book table 110a, the terminal device 100 updates the telephone number that is the target of the update request, and registers the update date of the updated telephone number. Then, when the number of days elapsed from the update date is equal to or greater than the threshold, the terminal device 100 sets the weight of the updated phone number to 0, thereby excluding it from the evaluation target for the nuisance call. In addition, the threshold value compared with the elapsed days from the update date is larger than the elapsed days from the registration date. Also, the terminal device 100 evaluates that a telephone call with a newly registered telephone number out of telephone numbers registered in the telephone directory table 110a is a nuisance call, rather than a telephone with a newly registered telephone number. Make it lower. For this reason, while adjusting the telephone with the updated telephone number more than the newly registered telephone number to be judged as a nuisance telephone call, even if the updated telephone number is safe, the nuisance telephone call Can be excluded from the evaluation target.

  The terminal device 100 updates the weight determination information 110b based on the update information transmitted from the server 200. For this reason, since the evaluation value of the nuisance call for the telephone by the telephone number can be corrected based on the latest tendency of the nuisance call, the detection accuracy of the nuisance call can be improved. In this embodiment, the case where the server 200 generates update information has been described as an example. However, the terminal device 100 may have the processing function of the server 200 that generates update information.

  By the way, the weight determination unit 150 of the terminal device 100 according to the present embodiment calculates the weight based on the number of days elapsed, but is not limited thereto, and corrects the weight according to the number of calls. May be. For example, the registration unit 140 registers the telephone number and the number of calls received from the telephone number in the telephone book table 110a in association with each other, and the weight determination unit 150 uses the number of calls as a basis. The weight may be specified.

  For example, after determining the weight based on the elapsed days, the weight determination unit 150 corrects the weight based on, for example, Expression (2), as described above. Α in Expression (2) is a value that is appropriately set by the user. When the corrected weight is less than the predetermined weight, the weight determination unit 150 determines a preset minimum weight as the corrected weight. This means that if the phone number belongs to a close friend, the number of calls will increase, which is clearly considered safe, while fraudulent calls can sometimes come in again and again. Therefore, leave the minimum weight.

  Weight after correction = weight−α × number of calls (2)

  Next, an example of a computer that executes a nuisance call detection program that realizes the same function as the terminal device shown in the above embodiment will be described. FIG. 9 is a diagram illustrating an example of a computer that executes a nuisance call detection program.

  As illustrated in FIG. 9, the computer 300 includes a CPU 301 that executes various arithmetic processes, an input device 302 that receives input of data from a user, and a display 303. The computer 300 also includes a reading device 304 that reads a program or the like from a storage medium, and an interface device 305 that exchanges data with other computers via a network. The computer 300 also includes a RAM 306 that temporarily stores various types of information and a storage device 307. The devices 301 to 307 are connected to the bus 308.

  The storage device 307 includes, for example, a registration program 307a and an evaluation program 307b. The CPU 301 reads the registration program 307 a and the evaluation program 307 b and expands them in the RAM 306. The registration program 307a functions as a registration process 306a. The evaluation program 307b functions as an evaluation process 306b.

  The process of the registration process 306a corresponds to the process of the registration unit 140. The process of the evaluation process 306b corresponds to the processes of the weight determination unit 150, the evaluation value calculation unit 160, and the determination unit 170.

  Note that the registration program 307a and the evaluation program 307b are not necessarily stored in the storage device 307 from the beginning. For example, each program is stored in a “portable physical medium” such as a flexible disk (FD), a CD-ROM, a DVD disk, a magneto-optical disk, and an IC card inserted into the computer 300. Then, the computer 300 may read and execute the registration program 307a and the evaluation program 307b from these.

  The following supplementary notes are further disclosed with respect to the embodiments including the above examples.

(Appendix 1) When a registration request for a new telephone number is received, a registration unit that registers the telephone number and the registration date in association with each other in a table;
Based on the table and the current date, when a telephone number that has passed a predetermined number of days from the registration date is detected, an evaluation that excludes a telephone call with the detected telephone number from the evaluation target of the nuisance call An nuisance call detection device comprising: an evaluation unit that provides a value.

(Additional remark 2) The said evaluation part counts the frequency | count of the telephone call by the telephone number registered into the said table, and reduces the evaluation that the telephone by the said telephone number is a nuisance call with the increase in the said telephone number of times. The nuisance call detection device according to appendix 1, wherein

(Additional remark 3) When the said registration part receives the update request | requirement of the said telephone number, the telephone number used as the object of the update request registered into the said table is updated, and the update date of the updated telephone number is stored in the said table. And when the evaluation unit detects a telephone number that has passed more than the predetermined number of days from the renewal date, the evaluation unit excludes a telephone call with the detected telephone number from an evaluation target of the nuisance call. The nuisance call detection device according to appendix 1 or 2, characterized by the above.

(Additional remark 4) The said evaluation part evaluates that it is a nuisance call with respect to the telephone by the telephone number newly registered rather than the telephone by the updated telephone number among the telephone numbers registered into the said table. The nuisance call detection device according to supplementary note 3, wherein the nuisance call detection device is lower.

(Additional remark 5) The said evaluation part correct | amends evaluation of the nuisance call with respect to the telephone by the telephone number registered in the said table based on the information of the number of days from the said registration date to the day which detected the nuisance call first. The nuisance call detection device according to Supplementary Note 1, which is characterized by the following.

(Additional remark 6) The said evaluation part correct | amends evaluation of the nuisance call with respect to the telephone by the telephone number updated to the said table based on the information of the number of days from the said update date to the date which detected the nuisance call first. The nuisance call detection device according to Supplementary Note 1, which is characterized by the following.

(Appendix 7) A method for detecting annoying calls executed by a computer,
When a registration request for a new telephone number is received, the telephone number and the registration date are associated with each other and registered in the table,
Based on the table and the current date, when a telephone number that has passed a predetermined number of days from the registration date is detected, an evaluation that excludes a telephone call with the detected telephone number from the evaluation target of the nuisance call A method of detecting a nuisance call, characterized by executing a process of giving a value.

(Supplementary Note 8) Counting the number of calls by the telephone number registered in the table, and further executing a process of reducing the evaluation that the telephone by the telephone number is a nuisance call as the number of calls increases The nuisance call detection method according to appendix 7, wherein

(Additional remark 9) When the update process of the said telephone number is received, the said process to register updates the telephone number used as the object of the update request registered into the said table, and the update date of the updated telephone number is said table In the case of detecting a telephone number that has passed more than the predetermined number of days from the renewal date, the process of excluding it from the renewal date excludes the telephone with the detected telephone number from the evaluation target of the nuisance call The nuisance call detection method according to appendix 7 or 8, wherein

(Additional remark 10) The process which lowers evaluation that it is a nuisance call with respect to the telephone by the telephone number newly registered among the telephone numbers registered into the said table than the telephone by the updated telephone number The nuisance call detection method according to appendix 9, further comprising:

(Additional remark 11) Based on the information of the number of days from the registration date to the date when the first nuisance call was detected, the process of correcting the evaluation of the nuisance call for the telephone by the telephone number registered in the table is further executed. The nuisance call detection method according to appendix 7, which is a feature.

(Additional remark 12) Based on the information of the number of days from the said update date to the date which detected the junk call for the first time, the process which corrects the evaluation of the junk call with respect to the telephone by the telephone number updated to the said table is further performed The nuisance call detection method according to appendix 7, which is a feature.

(Supplementary note 13)
When a registration request for a new telephone number is received, the telephone number and the registration date are associated with each other and registered in the table,
Based on the table and the current date, when a telephone number that has passed a predetermined number of days from the registration date is detected, an evaluation that excludes a telephone call with the detected telephone number from the evaluation target of the nuisance call A program for detecting a nuisance call characterized in that a process for giving a value is executed.

(Supplementary Note 14) Counting the number of calls by the telephone number registered in the table, and further executing a process of reducing the evaluation that the telephone by the telephone number is a nuisance call as the number of calls increases The nuisance call detection program according to supplementary note 13, characterized by:

(Additional remark 15) When the update process of the said telephone number is received, the said process to register updates the telephone number used as the object of the update request registered in the said table, and the update date of the updated telephone number is said table In the case of detecting a telephone number that has passed more than the predetermined number of days from the renewal date, the process of excluding it from the renewal date excludes the telephone with the detected telephone number from the evaluation target of the nuisance call The nuisance call detection program according to appendix 13 or 14, characterized in that:

(Supplementary Note 16) A process for lowering the evaluation that the telephone number is newly registered among the telephone numbers registered in the table as a nuisance call with respect to the telephone with the newly registered telephone number. The nuisance call detection program according to supplementary note 15, further executed.

(Additional remark 17) Based on the information of the number of days from the said registration date to the date when the first nuisance call was detected, the process which corrects the evaluation of the nuisance call with respect to the telephone by the telephone number registered in the said table is further performed. 14. The nuisance call detection program according to appendix 13, which is a feature.

(Additional remark 18) Based on the information of the number of days from the update date to the date when the first nuisance call was detected, the process of correcting the evaluation of the nuisance call for the telephone with the telephone number updated in the table is further executed. 14. The nuisance call detection program according to appendix 13, which is a feature.

DESCRIPTION OF SYMBOLS 50 Network 100a, 100b, 100c Terminal device 110 Storage part 120 Call voice acquisition part 130 Telephone number acquisition part 140 Registration part 150 Weight determination part 160 Evaluation value calculation part 170 Determination part 180 Warning part 190 Update part 200 Server 210 Communication part 220 Storage Department 220a Nuisance call information DB
230 Control Unit 231 Acquisition Unit 232 Update Information Generation Unit 300 Computer 301 CPU
302 Input device 303 Display 304 Reading device 305 Interface device 306 RAM
306a Registration process 306b Evaluation process 307 Storage device 307a Registration program 307b Evaluation program 308 Bus

Claims (8)

A registration unit that registers the telephone number and the registration date in association with each other when a registration request for a new telephone number is received;
Based on the table and the current date, when a telephone number that has passed a predetermined number of days from the registration date is detected, an evaluation that excludes a telephone call with the detected telephone number from the evaluation target of the nuisance call An nuisance call detection device comprising: an evaluation unit that provides a value.   The evaluation unit counts the number of calls by the telephone number registered in the table, and reduces the evaluation that the call by the telephone number is a nuisance call as the number of calls increases. The nuisance call detection device according to claim 1.   When the registration unit receives the update request for the telephone number, the registration unit updates the telephone number that is the target of the update request registered in the table, registers the update date of the updated telephone number in the table, and When the evaluation unit detects a telephone number that has exceeded the predetermined number of days since the update date, the evaluation unit gives an evaluation value that excludes a telephone call with the detected telephone number from the evaluation target of the nuisance call The nuisance call detection device according to claim 1 or 2.   The evaluation unit lowers the evaluation that a telephone with a newly registered telephone number is a nuisance telephone than a telephone with an updated telephone number among telephone numbers registered in the table. The nuisance call detection device according to claim 3.   The evaluation unit corrects an evaluation of a nuisance call for a call by a telephone number registered in the table based on information on a number of days from the registration date to a date when a nuisance call is first detected. Item 2. The nuisance call detection device according to item 1.   The evaluation unit corrects an evaluation of a nuisance call for a call with a telephone number updated in the table based on information on a number of days from the update date to a date when a nuisance call is first detected. Item 2. The nuisance call detection device according to item 1. An annoying phone call detection method executed by a computer,
When a registration request for a new telephone number is received, the telephone number and the registration date are associated with each other and registered in the table,
Based on the table and the current date, when a telephone number that has passed a predetermined number of days from the registration date is detected, an evaluation that excludes a telephone call with the detected telephone number from the evaluation target of the nuisance call A method of detecting a nuisance call, characterized by executing a process of giving a value. On the computer,
When a registration request for a new telephone number is received, the telephone number and the registration date are associated with each other and registered in the table,
Based on the table and the current date, when a telephone number that has passed a predetermined number of days from the registration date is detected, an evaluation that excludes a telephone call with the detected telephone number from the evaluation target of the nuisance call A program for detecting a nuisance call characterized in that a process for giving a value is executed.

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