CN108769933B - Multimedia message identification method and multimedia message identification system - Google Patents
Multimedia message identification method and multimedia message identification system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/12—Detection or prevention of fraud
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/60—Subscription-based services using application servers or record carriers, e.g. SIM application toolkits
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- H04W88/18—Service support devices; Network management devices
Abstract
The invention belongs to the technical field of communication, and particularly relates to a multimedia message identification method and a multimedia message identification system. The multimedia message identification method comprises the following steps: at least acquiring a multimedia message package of a multimedia message sending user number, a multimedia message sending and receiving total number, a multimedia message receiving place and a multimedia message sending use flow total number; calculating the suspected degree of the multimedia message sending user number according to the multimedia message package, the total number of the multimedia message sending and receiving, the multimedia message receiving place and the total number of the multimedia message sending use flow; judging a junk multimedia message according to the suspected degree of the multimedia message sending user number; and processing the multimedia message, namely intercepting the junk multimedia message, and sending the multimedia message which is excluded as the non-junk multimedia message to a receiving party. The multimedia message identification method and the multimedia message identification system can accurately and effectively identify the junk multimedia messages, thereby further improving the identification rate and suppressing the spreading of the junk multimedia messages to a certain extent.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a multimedia message identification method and a multimedia message identification system.
Background
With the development of mobile communication technology, smart phones are more and more popular, and according to the latest research report of Zenith in the United states, the number of global smart phone users will still steadily increase in 2018, wherein China is a countless user, and the number of smart phone users will reach 13 hundred million people and live in the first global place. Although the smart phone is fast and popular, people bring much convenience and rich life, new fraud means and opportunities are brought to fraud criminals, and the fraud criminals publicize illegal information such as false, advertisement and fraud by using mobile services such as telephone and short message. In recent years, spam multimedia messages have also become one of the toxicomas in society.
The multimedia message, i.e. multimedia information service, is characterized in that the multimedia message can transmit various multimedia formats such as characters, pictures, sounds and the like. With the development of network technology, the multimedia message service is rapidly developed, the multimedia message charge is lower and lower, and the multimedia messages in the domestic 4G package short color bag are only 5 cents/bar at present. The too low multimedia message charge is utilized by lawbreakers, and a large amount of garbage multimedia messages are sent to users, which brings huge loss to operators and users.
In the aspect of expression, the largest difference between the spam multimedia messages and the spam short messages is that fraud, pornography, harassment and other information is sent in the form of multimedia messages; however, the two are different in implementation principle, the short message is character information transmitted by using a No. 7 signaling network as a carrier, and the multimedia message is information transmitted by using a WAP wireless application protocol as a carrier, and technically, the short message and the multimedia message are completely irrelevant. Therefore, the current means of managing the spam short messages based on the keywords and the like cannot be applied to spam multimedia message management.
The excessive low multimedia message charge and the immaturity of the junk multimedia message treatment technology lead the complaint amount of the junk multimedia messages to rapidly rise in recent years, and bring huge economic loss to the society.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a multimedia message identification method and a multimedia message identification system aiming at the defects in the prior art, which can effectively identify junk multimedia messages and inhibit the spreading of the junk multimedia messages to a certain extent.
The technical scheme adopted for solving the technical problem of the invention is that the multimedia message identification method comprises the following steps:
at least acquiring a multimedia message package of a multimedia message sending user number, a multimedia message sending and receiving total number, a multimedia message receiving place and a multimedia message sending use flow total number;
calculating the suspected degree of the multimedia message sending user number according to the multimedia message package, the total number of the multimedia message sending and receiving, the multimedia message receiving place and the total number of the multimedia message sending use flow;
judging a junk multimedia message according to the suspected degree of the multimedia message sending user number;
and processing the multimedia message, namely intercepting the junk multimedia message, and sending the multimedia message which is excluded as the non-junk multimedia message to a receiving party.
Preferably, the steps of at least obtaining the multimedia message package of the multimedia message sending user number, the multimedia message sending and receiving total number, the multimedia message receiving place and the multimedia message sending use flow total number comprise:
collecting a short message detail list of a multimedia message sending user number, a multimedia message service ordering detail list and a payment detail list of a user;
extracting multimedia message package, multimedia message sending and receiving total number, multimedia message receiving place, total flow and total flow for sending multimedia message.
Preferably, the step of calculating the suspected degree of the multimedia message sending user number comprises the following steps:
calculating the multimedia message index, comprising the following steps: the multimedia message package result index, the quantity ratio index of the sent and received multimedia messages, the flow ratio index of the sent multimedia messages and the multimedia message distribution result index, wherein:
the result index of the multimedia message package is X1w1，X1As a result of the MMS package, w1The weight is indicated for the result of the multimedia message package;
the quantity ratio index of the sent and received multimedia messages is X2w2，X2Number ratio r of multimedia messages for transmission and reception1The result of the quantity ratio of the received and transmitted multimedia messages r compared with the quantity threshold value1Is the ratio of the total amount of transmitted multimedia messages to the total amount of received multimedia messages, w2The quantity ratio result index weight of the multimedia messages is sent and received;
the flow rate index of sending the multimedia message is X3w3，X3Traffic ratio r for sending multimedia messages2Sending a result of the flow rate of the multimedia message, r, compared to a flow threshold2The ratio of the total amount of traffic used for sending the multimedia message to the total amount of traffic used by all applications, w3The flow rate result index weight of the multimedia message is sent;
the multimedia message pervasion result index is X4w4，X4The result of the spread of the multimedia message, w, compared with the provincial and municipal thresholds at the receiving place of the multimedia message4Indicating the weight for the result of the spread of the multimedia message;
according to the multimedia message index, calculating the suspected degree of the junk multimedia message of the multimedia message sending user number, wherein:
the suspected degree of the garbage multimedia message is as follows:
wherein: each result Xi1 or 0, sum of weight values of each outcome index
t＝4。
Preferably, the method further comprises the steps of collecting a payment detailed list of the multimedia message sending user number and acquiring payment amount;
and, calculating the result index X of the payment record5w5，X5For recording the result of the payment, w5The weight is the result index of the payment record;
correspondingly, the suspected degree of the spam multimedia message is as follows:
payment record result X5Is 1 or 0; sum of weighted values of each outcome index
t＝5。
Preferably, the determining the spam multimedia message comprises:
analyzing the suspected degree D of the garbage multimedia message and a preset multimedia message difference threshold value Y, and calculating the difference E between the suspected degree D of the garbage multimedia message and the preset multimedia message difference threshold value Y to be | D-Y |;
judging E > Z1If yes, judging the multimedia message sent by the multimedia message sending user number as a garbage multimedia message for interception, otherwise, carrying out the next step, Z1Is a constant value;
further judge E > Z2If yes, the operator service transmission is enabledReminding information is sent by a receiver whether to receive the short message, otherwise, the receiver indicates to directly send the multimedia message, Z2Is a constant, and Z2＜Z1。
A multimedia message identification system comprises an acquisition unit, a calculation unit, a judgment unit and a processing unit, wherein:
the acquisition unit is used for at least acquiring a multimedia message package of a multimedia message sending user number, a multimedia message sending and receiving total number, a multimedia message receiving place and a multimedia message sending use flow total number;
the computing unit is used for computing the suspected degree of the multimedia message sending user number according to the multimedia message package, the total number of the multimedia message sending and receiving, the multimedia message receiving place and the total number of the multimedia message sending and receiving use flow;
the judgment unit is used for judging the junk multimedia message according to the suspected degree of the multimedia message sending user number;
the processing unit is used for processing the multimedia messages, intercepting the garbage multimedia messages and sending the multimedia messages excluded as the non-garbage multimedia messages to a receiving party.
Preferably, the acquiring unit includes an acquiring module and an extracting module, wherein:
the collection module is used for collecting a short message detail list of a multimedia message sending user number, a multimedia message service ordering detail list and a payment detail list of a user;
the extraction module is used for extracting the multimedia message package, the multimedia message sending and receiving total number, the multimedia message receiving place, the total flow and the total flow for sending the multimedia message.
Preferably, the computing unit comprises a multimedia message package result index module, a number ratio index module for sending and receiving multimedia messages, a flow ratio index module for sending multimedia messages, a multimedia message distribution result index module and a summarizing module, wherein:
in the multimedia message package result index module, the multimedia message package result index is X1w1，X1As a result of the MMS package, w1The weight is indicated for the result of the multimedia message package;
the number of the multimedia messages sent and received in the quantity ratio index module of the multimedia messages sent and receivedThe quantitative ratio index is X2w2，X2Number ratio r of multimedia messages for transmission and reception1The result of the quantity ratio of the received and transmitted multimedia messages r compared with the quantity threshold value1Is the ratio of the total amount of transmitted multimedia messages to the total amount of received multimedia messages, w2The quantity ratio result index weight of the multimedia messages is sent and received;
in the multimedia message sending flow ratio index module, the multimedia message sending flow ratio index is X3w3，X3Traffic ratio r for sending multimedia messages2Sending a result of the flow rate of the multimedia message, r, compared to a flow threshold2The ratio of the total amount of traffic used for sending the multimedia message to the total amount of traffic used by all applications, w3The flow rate result index weight of the multimedia message is sent;
in the multimedia message spreading result index module, the multimedia message spreading result index is X4w4，X4The result of the spread of the multimedia message, w, compared with the provincial and municipal thresholds at the receiving place of the multimedia message4Indicating the weight for the result of the spread of the multimedia message;
the summarizing module calculates the suspected degree of the junk multimedia messages of the multimedia message sending user numbers, wherein:
the suspected degree of the garbage multimedia message is as follows:
wherein: each result Xi1 or 0, sum of weight values of each outcome index
Preferably, the acquiring unit is further configured to acquire a payment detail sheet of the multimedia message sending user number and extract a payment amount;
the calculation unit also comprises a payment record result index module, wherein in the payment record result index module, a payment record result index X is calculated5w5，X5For recording the result of the payment, w5The weight is the result index of the payment record;
correspondingly, in the summarizing module,the suspected degree of the garbage multimedia message is as follows:
payment record result X5Is 1 or 0; sum of weighted values of each outcome index
Preferably, the judging unit includes a difference module and a comparing module, wherein:
the difference module is used for analyzing the suspected degree D of the garbage multimedia message and a preset multimedia message difference threshold value Y and calculating the difference E between the suspected degree D of the garbage multimedia message and the preset multimedia message difference threshold value Y as | D-Y |;
the comparison module is used for judging that E is more than Z1If yes, judging the multimedia message sent by the multimedia message sending user number as a garbage multimedia message for interception, otherwise, carrying out the next step, Z1Is a constant value;
and, further judging E > Z2If yes, the operator service sends the reminding information and the receiver sends the short message, otherwise, the receiver indicates to directly send the multimedia message, Z2Is a constant, and Z2＜Z1。
The invention has the beneficial effects that:
the multimedia message identification method and the multimedia message identification system can accurately and effectively identify the junk multimedia messages, thereby further improving the identification rate and suppressing the spreading of the junk multimedia messages to a certain extent.
Drawings
FIG. 1 is a flowchart of a multimedia message identification method in an embodiment of the present invention;
FIG. 2 is a flowchart of an embodiment of a multimedia message identification method according to the present invention;
FIG. 3 is a block diagram of a multimedia message recognition system according to an embodiment of the present invention;
in the drawings, wherein:
1-an acquisition unit; 2-a calculation unit; 3-a judging unit; 4-a processing unit.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the multimedia message identification method and the multimedia message identification system in further detail with reference to the accompanying drawings and the detailed description.
Example 1:
the embodiment provides a multimedia message identification method based on user behavior characteristic analysis and a corresponding multimedia message identification system, which can further improve the recognition rate of junk multimedia messages, thereby accurately and effectively identifying the junk multimedia messages and restraining the spreading of the junk multimedia messages to a certain extent.
As shown in fig. 1 and fig. 2, the multimedia message identification method includes the steps of:
step S1): at least obtaining the multimedia message package of the multimedia message sending user number, the multimedia message sending and receiving total number, the multimedia message receiving place and the total number of the multimedia message sending use flow.
In the step, in order to effectively, accurately and quickly identify the junk multimedia messages, the attribute analysis is carried out on the multimedia messages of the multimedia message sending user numbers so as to identify the junk multimedia messages. The method specifically comprises the steps of collecting data related to a multimedia message sending user number and the multimedia message, and preprocessing the data.
The operator collects the short message detail list, the multimedia message service ordering detail list and the payment detail list of the user, the short message detail list at least comprises a multimedia message sending user number, a multimedia message receiving user number and sending time, and the location of the multimedia message sending user number and the location of the multimedia message receiving user number (namely, the multimedia message receiving location) can be further obtained; the multimedia message service subscription detail list at least comprises a multimedia message package. In order to identify the junk multimedia messages, preprocessing the data, extracting fields such as multimedia message package, multimedia message sending and receiving total number, total flow amount, multimedia message sending use flow amount total number, payment amount and the like, preprocessing the data, and obtaining multimedia message information sent by a single sending user within a certain time period.
Preferably, in order to ensure the security of the personal information and data of the user, the method further comprises the step of carrying out encryption desensitization on the multimedia message receiving user number.
Step S2): and calculating the suspected degree of the multimedia message sending user number according to the multimedia message package, the total number of the multimedia message sending and receiving, the multimedia message receiving place and the total number of the multimedia message sending use flow.
The step of calculating the suspected degree of the multimedia message sending user number comprises the following steps: and calculating the multimedia message index, and calculating the suspected degree of the junk multimedia message of the multimedia message sending user number according to the multimedia message index. The multimedia message indexes comprise: the multimedia message package result index, the quantity ratio index of the sent and received multimedia messages, the flow ratio index of the sent multimedia messages and the multimedia message spreading result index, the following multimedia message index calculation processes all take a single sending user as a unit, and it should be understood that the following indexes are not calculated according to the time sequence.
(1) One reason for the large-range spread of the junk multimedia messages is that operators charge too low multimedia messages, so that the multimedia message package condition is one of the necessary indexes, firstly, whether the multimedia message service ordered by the multimedia message sending user contains a large number of multimedia message packages is judged, and the multimedia message package result is recorded as X1The weight of the MMS package result index is recorded as w1The result index of the multimedia message package is X1w1。
(2) And calculating the quantity ratio index of the sent and received multimedia messages according to the characteristic that the spam multimedia messages are sent in a large scale but received in a small quantity. Presetting a first time period T1(T1 is one hour for example), counting the total amount of multimedia messages sent by multimedia message sending user numbers and the total amount of received multimedia messages, and calculating the ratio r of the number of the sent multimedia messages to the number of the received multimedia messages1Comparison of r1And a preset number threshold value Y2The result of the quantity ratio of the multimedia messages sent and received is marked as X2The result index weight of the quantity ratio of the sent and received multimedia messages is recorded as w2The quantity ratio index of the sending and receiving multimedia messages is X2w2。
(3) Because the multimedia message uses the WAP wireless application protocol as a carrier to send information, namely uses flow to send information, the use condition of the flow is very important. Counting the total using flow of the multimedia message sent by the multimedia message sending user number and the total using flow of all the applications in the first time period T1, and calculating the flow ratio r of the multimedia message sent2Comparison of r2With a predetermined flow threshold value Y3And the result of the flow rate of the sent multimedia message is recorded as X3The result of the flow rate of the sending multimedia message indicatesThe mark weight is denoted as w3The flow rate index of sending the multimedia message is X3w3。
(4) According to the non-repeatability characteristic of the garbage multimedia messages, counting the number N of provinces and cities to which receivers of multimedia message sending users sending the multimedia messages in the first time period T1 belong, and comparing the N with a preset province and city threshold value Y4The result of the spread of multimedia message is marked as X4The color message spread result index weight is recorded as w4The multimedia message pervasion result index is X4w4。
Wherein the result data Xi(i 1-4) "yes" and "no" are non-quantization units, and X isiThe value corresponding to "yes" is 1, corresponding to "no" is 0. And (3) performing a large amount of random sampling on the normal multimedia message data by an operator, then calculating the average value of all the sampled data, finding out the maximum value in the sampled data, and calculating the average value between the average value and the maximum value of all the sampled data to serve as the final threshold value. T1 is generally used in a unit of 1 hour, and the smaller the time unit, the higher the accuracy, but the higher the complexity, so it can be flexibly set according to the accuracy requirement and the software and hardware environment, and it is not limited here.
In the step of calculating the suspected degree of the junk multimedia message of the multimedia message sending user number according to the multimedia message index, the suspected degree of the junk multimedia message of the multimedia message sending user number is calculated according to the following formula:
D＝∑Xiwi
wherein, the sum of the weight values of all indexes
t＝4，wtotalShould be 1.
t is the total number of indexes, and the index weight w is due to the characteristics of provinces and cities of each province and cityiThe distribution can be performed according to the importance of the indexes in identifying the spam multimedia messages, and the weight of the indexes with higher importance can be distributed more (for example, 45 percent), but the indexes are distributed reasonably according to actual conditions. The specific method for weight distribution can be determined according to experimental junk multimedia message seed data.
Step S3): and judging the junk multimedia message according to the suspected degree of the multimedia message sending user number.
Firstly, analyzing the suspected degree D of the garbage multimedia message and a preset multimedia message difference threshold value Y, and calculating the difference E between the suspected degree D of the garbage multimedia message and the preset multimedia message difference threshold value Y to be | D-Y |;
then, E > Z is judged1(first threshold value Z)1A constant) is established, if so, the multimedia message sent by the multimedia message sending user number is judged to be a garbage multimedia message for interception, otherwise, the next step is carried out;
further, E > Z2(second threshold value Z)2Is a constant, and Z2＜Z1) If yes, the operator service sends the reminding information and the receiver sends whether to receive the short message, otherwise, the operator service indicates to directly send the multimedia message.
Preferably, the hesitation time period T2 may be preset for the receiving party to consider whether to receive the multimedia message, and if the receiving party does not receive the notification that the user does not receive the multimedia message during the hesitation time period T2(T2 is, for example, 30 seconds), the receiving party sends the multimedia message; otherwise, intercepting the multimedia message.
Step S4): and processing the multimedia message, namely intercepting the junk multimedia message, and sending the multimedia message which is excluded as the non-junk multimedia message to a receiving party.
Correspondingly, the present embodiment further provides a multimedia message identification system, as shown in fig. 3, which includes an obtaining unit 1, a calculating unit 2, a determining unit 3, and a processing unit 4, wherein:
the acquisition unit 1 is used for at least acquiring a multimedia message package of a multimedia message sending user number, a multimedia message sending and receiving total number, a multimedia message receiving place and a multimedia message sending use flow total number;
the calculating unit 2 is used for calculating the suspected degree of the multimedia message sending user number according to the multimedia message package, the total number of the multimedia message sending and receiving, the multimedia message receiving place and the total number of the multimedia message sending and receiving use flow;
the judging unit 3 is used for judging the junk multimedia message according to the suspected degree of the multimedia message sending user number;
and the processing unit 4 is used for intercepting the junk multimedia messages or sending the multimedia messages excluded as the non-junk multimedia messages to a receiving party.
The acquisition unit 1 includes an acquisition module and an extraction module, wherein:
the collection module is used for collecting a short message detail list of a multimedia message sending user number, a multimedia message service ordering detail list and a payment detail list of a user;
and the extraction module is used for extracting the multimedia message package, the multimedia message sending and receiving total number, the multimedia message receiving place, the total flow and the total flow for sending the multimedia message related to the multimedia message.
The calculation unit 2 comprises a multimedia message package result index module, a quantity ratio index module for sending and receiving multimedia messages, a flow ratio index module for sending multimedia messages, a multimedia message distribution result index module and a summary module, wherein:
in the multimedia message package result index module, the multimedia message package result index is X1w1，X1As a result of the MMS package, w1The weight is indicated for the result of the multimedia message package;
in the quantity ratio index module of the sending and receiving multimedia messages, the quantity ratio index of the sending and receiving multimedia messages is X2w2，X2Number ratio r of multimedia messages for transmission and reception1The result of the quantity ratio of the received and transmitted multimedia messages r compared with the quantity threshold value1Is the ratio of the total amount of transmitted multimedia messages to the total amount of received multimedia messages, w2The quantity ratio result index weight of the multimedia messages is sent and received;
in the module for sending the multimedia message, the flow ratio index for sending the multimedia message is X3w3，X3Traffic ratio r for sending multimedia messages2Sending a result of the flow rate of the multimedia message, r, compared to a flow threshold2The ratio of the total amount of traffic used for sending the multimedia message to the total amount of traffic used by all applications, w3The flow rate result index weight of the multimedia message is sent;
in the multimedia message spreading result index module, the multimedia message spreading result index is X4w4，X4As a result of spreading the multimedia message, w4Indicating the weight for the result of the spread of the multimedia message;
the collection module is used for calculating the suspected degree of the junk multimedia messages of the multimedia message sending user numbers, wherein:
the suspected degree of the garbage multimedia message is as follows:
wherein: each result Xi1 or 0, sum of weight values of each outcome index
The judging unit 3 includes a difference module and a comparing module, wherein:
the difference module is used for analyzing the suspected degree D of the garbage multimedia message and a preset multimedia message difference threshold value Y and calculating the difference E between the suspected degree D of the garbage multimedia message and the preset multimedia message difference threshold value Y to be | D-Y |;
a comparison module for judging E > Z1If yes, judging the multimedia message sent by the multimedia message sending user number as a garbage multimedia message for interception, otherwise, carrying out the next step, Z1Is a constant value;
and, further judging E > Z2If yes, the operator service sends the reminding information and the receiver sends the short message, otherwise, the receiver indicates to directly send the multimedia message, Z2Is a constant, and Z2＜Z1。
Example 2:
the embodiment provides a multimedia message identification method based on user behavior characteristic analysis and a corresponding multimedia message identification system, which can further improve the recognition rate of junk multimedia messages, thereby accurately and effectively identifying the junk multimedia messages and restraining the spreading of the junk multimedia messages to a certain extent.
On the basis of the multimedia message recognition method based on user behavior feature analysis and the corresponding multimedia message recognition system in embodiment 1, in order to achieve a better effect, the embodiment further obtains a payment detail sheet of the sending user, wherein the payment detail sheet at least comprises payment amount and payment time.
Basically used for sending spam color according to the analysis of the situation of the spam color message complaint verification number provided by the Ministry of industry and correspondence, the Ministry of public Security and the likeAiming at the characteristic that the credit number has a high probability of having a high arrearage, in the multimedia message identification method, a third time period T3(T3 is 2 months for example) is preset, whether a multimedia message sending user arrearages or not and whether a payment record exists or not are judged, and if the arrearage exists, whether the arrearage is greater than an arrearage threshold Y or not is further judged5Recording the payment record result as X5The weight of the result index of the payment record is recorded as w5The result index of the payment record is X5w5。
Correspondingly, in the multimedia message identification system, the acquisition unit 1 is also used for acquiring a payment detailed list of a multimedia message sending user number and extracting payment amount;
the calculation unit 2 further comprises a payment record result index module, wherein the payment record result index module calculates a payment record result index X5w5，X5For recording the result of the payment, w5The weight is the result index of the payment record;
correspondingly, in the summarizing module, the suspected degree of the spam multimedia messages is as follows:
payment record result X5Is 1 or 0; sum of weighted values of each outcome index
Other steps in the lottery recognition method in this embodiment are the same as corresponding steps in the lottery recognition method in embodiment 1, and functions of other modules in the multimedia message recognition system are the same as those of corresponding modules in the lottery recognition system in embodiment 1, and detailed description is omitted here.
In the prior art, the method for treating the spam multimedia message generally comprises the steps of blacklist interception, character recognition technology interception and image recognition technology interception.
And the interception based on the blacklist is that the user self-defines the blacklist or the operator establishes the blacklist in the multimedia message center of the operator, and the multimedia message is intercepted according to the blacklist. The interception mode needs to establish a blacklist in advance, that is, at least the number for sending the spam multimedia message is sent to the user once, and the number can be put into the blacklist, which is contrary to a mechanism for putting the spam multimedia message in one time. The number sources of the operator blacklist are less, and certain problems also exist in reliability.
The method comprises the steps of intercepting a character recognition technology and an image recognition technology, wherein a keyword database or an image feature database is created in advance, then characters or image features contained in the multimedia message are extracted and matched or compared with the database or the feature database, and accordingly the junk multimedia message is recognized. At present, the character recognition technology and the image recognition technology are not mature, the actual use difficulty is high, the character recognition technology and the image recognition technology depend on a pre-established key word database and an image feature database to a certain extent, the databases are required to be updated continuously, the recognition rate is low, the multimedia message sending time is prolonged, and the development cost is increased.
Therefore, the junk multimedia message identification technology in the prior art can identify and intercept junk multimedia messages to a certain extent, but still cannot effectively contain the junk multimedia messages. The multimedia message identification method based on user behavior characteristic analysis and the corresponding multimedia message identification system provided by the invention can be used for counting and analyzing user behavior indexes such as multimedia message package, received multimedia message quantity, total flow, flow use condition, province of a receiver and the like of a user by acquiring the multimedia message detail list, payment detail list and multimedia message ordering detail list, and then comparing the calculation result with the predetermined threshold value to obtain a conclusion, so that the junk multimedia message can be accurately and effectively identified, the identification rate is further improved, and the spreading of the junk multimedia message is restrained to a certain extent.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (8)
1. A multimedia message identification method is characterized by comprising the following steps:
at least acquiring a multimedia message package of a multimedia message sending user number, a multimedia message sending and receiving total number, a multimedia message receiving place and a multimedia message sending use flow total number;
calculating the suspected degree of the multimedia message sending user number according to the multimedia message package, the total number of the multimedia message sending and receiving, the multimedia message receiving place and the total number of the multimedia message sending use flow;
judging a junk multimedia message according to the suspected degree of the multimedia message sending user number;
processing the multimedia message, including intercepting the garbage multimedia message and sending the multimedia message which is excluded as the non-garbage multimedia message to a receiver;
the step of calculating the suspected degree of the multimedia message sending user number comprises the following steps:
calculating the multimedia message index, comprising the following steps: the multimedia message package result index, the quantity ratio index of the sent and received multimedia messages, the flow ratio index of the sent multimedia messages and the multimedia message distribution result index, wherein:
the result index of the multimedia message package is X1w1，X1As a result of the MMS package, w1The weight is indicated for the result of the multimedia message package;
the quantity ratio index of the sent and received multimedia messages is X2w2，X2Number ratio r of multimedia messages for transmission and reception1The result of the quantity ratio of the received and transmitted multimedia messages r compared with the quantity threshold value1Is the ratio of the total amount of transmitted multimedia messages to the total amount of received multimedia messages, w2The quantity ratio result index weight of the multimedia messages is sent and received;
the flow rate index of sending the multimedia message is X3w3，X3Traffic ratio r for sending multimedia messages2Sending a result of the flow rate of the multimedia message, r, compared to a flow threshold2The ratio of the total amount of traffic used for sending the multimedia message to the total amount of traffic used by all applications, w3The flow rate result index weight of the multimedia message is sent;
the multimedia message pervasion result index is X4w4，X4The result of the spread of the multimedia message, w, compared with the provincial and municipal thresholds at the receiving place of the multimedia message4Indicating the weight for the result of the spread of the multimedia message;
according to the multimedia message index, calculating the suspected degree of the junk multimedia message of the multimedia message sending user number, wherein:
the suspected degree of the garbage multimedia message is as follows:
wherein: each result Xi1 or 0, sum of weight values of each outcome index
2. The multimedia message identification method of claim 1,
the steps of at least obtaining the multimedia message package of the multimedia message sending user number, the multimedia message sending and receiving total number, the multimedia message receiving place and the multimedia message sending use flow total number comprise:
collecting a short message detail list of a multimedia message sending user number, a multimedia message service ordering detail list and a payment detail list of a user;
extracting multimedia message package, multimedia message sending and receiving total number, multimedia message receiving place, total flow and total flow for sending multimedia message.
3. The multimedia message identification method of claim 1,
collecting a payment detailed list of a multimedia message sending user number and acquiring a payment amount;
and, calculating the result index X of the payment record5w5，X5For recording the result of the payment, w5The weight is the result index of the payment record;
correspondingly, the suspected degree of the spam multimedia message is as follows:
payment record result X5Is 1 or 0; sum of weighted values of each outcome index
4. The method of claim 1 or 3, wherein the determining spam multimedia messages comprises:
analyzing the suspected degree D of the garbage multimedia message and a preset multimedia message difference threshold value Y, and calculating the difference E between the suspected degree D of the garbage multimedia message and the preset multimedia message difference threshold value Y to be | D-Y |;
judging E > Z1If yes, judging the multimedia message sent by the multimedia message sending user number as a garbage multimedia message for interception, otherwise, carrying out the next step, Z1Is a constant value;
further judge E > Z2If yes, the operator service sends the reminding information and the receiver sends the short message, otherwise, the receiver indicates to directly send the multimedia message, Z2Is a constant, and Z2＜Z1。
5. A multimedia message identification system is characterized by comprising an acquisition unit, a calculation unit, a judgment unit and a processing unit, wherein:
the acquisition unit is used for at least acquiring a multimedia message package of a multimedia message sending user number, a multimedia message sending and receiving total number, a multimedia message receiving place and a multimedia message sending use flow total number;
the computing unit is used for computing the suspected degree of the multimedia message sending user number according to the multimedia message package, the total number of the multimedia message sending and receiving, the multimedia message receiving place and the total number of the multimedia message sending and receiving use flow;
the judgment unit is used for judging the junk multimedia message according to the suspected degree of the multimedia message sending user number;
the processing unit is used for processing the multimedia messages, intercepting the garbage multimedia messages and sending the multimedia messages excluded as the non-garbage multimedia messages to a receiving party;
the computing unit comprises a multimedia message package result index module, a quantity ratio index module for sending and receiving multimedia messages, a flow ratio index module for sending the multimedia messages, a multimedia message distribution result index module and a summarizing module, wherein:
in the multimedia message package result index module,the result index of the multimedia message package is X1w1，X1As a result of the MMS package, w1The weight is indicated for the result of the multimedia message package;
in the quantity ratio index module of the sending and receiving multimedia messages, the quantity ratio index of the sending and receiving multimedia messages is X2w2，X2Number ratio r of multimedia messages for transmission and reception1The result of the quantity ratio of the received and transmitted multimedia messages r compared with the quantity threshold value1Is the ratio of the total amount of transmitted multimedia messages to the total amount of received multimedia messages, w2The quantity ratio result index weight of the multimedia messages is sent and received;
in the multimedia message sending flow ratio index module, the multimedia message sending flow ratio index is X3w3，X3Traffic ratio r for sending multimedia messages2Sending a result of the flow rate of the multimedia message, r, compared to a flow threshold2The ratio of the total amount of traffic used for sending the multimedia message to the total amount of traffic used by all applications, w3The flow rate result index weight of the multimedia message is sent;
in the multimedia message spreading result index module, the multimedia message spreading result index is X4w4，X4The result of the spread of the multimedia message, w, compared with the provincial and municipal thresholds at the receiving place of the multimedia message4Indicating the weight for the result of the spread of the multimedia message;
the summarizing module calculates the suspected degree of the junk multimedia messages of the multimedia message sending user numbers, wherein:
the suspected degree of the garbage multimedia message is as follows:
wherein: each result Xi1 or 0, sum of weight values of each outcome index
6. The multimedia message identification system of claim 5, wherein the obtaining unit comprises an acquisition module and an extraction module, wherein:
the collection module is used for collecting a short message detail list of a multimedia message sending user number, a multimedia message service ordering detail list and a payment detail list of a user;
the extraction module is used for extracting the multimedia message package, the multimedia message sending and receiving total number, the multimedia message receiving place, the total flow and the total flow for sending the multimedia message.
7. The multimedia message identification system of claim 5,
the acquisition unit is also used for acquiring a payment detailed note of the multimedia message sending user number and extracting payment amount;
the calculation unit also comprises a payment record result index module, wherein in the payment record result index module, a payment record result index X is calculated5w5，X5For recording the result of the payment, w5The weight is the result index of the payment record;
correspondingly, in the summarizing module, the suspected degree of the spam multimedia messages is as follows:
payment record result X5Is 1 or 0; sum of weighted values of each outcome index
8. The multimedia message identification system of claim 5 or 7, wherein the judgment unit comprises a difference module and a comparison module, wherein:
the difference module is used for analyzing the suspected degree D of the garbage multimedia message and a preset multimedia message difference threshold value Y and calculating the difference E between the suspected degree D of the garbage multimedia message and the preset multimedia message difference threshold value Y as | D-Y |;
the comparison module is used for judging that E is more than Z1If yes, judging the multimedia message sent by the multimedia message sending user number as a garbage multimedia message for interception, otherwise, carrying out the next step, Z1Is a constant value;
and, further judgingE＞Z2If yes, the operator service sends the reminding information and the receiver sends the short message, otherwise, the receiver indicates to directly send the multimedia message, Z2Is a constant, and Z2＜Z1。
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