A method for detecting international theft
An international and algorithmic technology, applied in the information field, can solve problems such as disrupting social order, economic loss of users, and high international call charges for telephone users, so as to reduce the incidence rate and the workload of manual review, reduce the incidence rate, and avoid economic problems. loss effect
Active Publication Date: 2021-11-30
上海欣方智能系统有限公司 +1
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Problems solved by technology
[0002] With the development of communication technology, more and more criminals use software and hardware to steal user communication numbers to call foreign charging platforms through communication technology, so that many phone users will generate abnormally high international call charges, not only to Users have brought economic losses and disrupted the normal social order
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0029] Such as figure 1 As shown, a method for detecting international piracy, comprising the following steps:
[0030] S1: Read data: extract the original CDR data of international outgoing calls from the informix database;
[0031] S2: Feature engineering: Preliminary screening of the above original CDR bill data and obtaining call behavior features;
[0032] S3: Model detection: Use the isolated forest algorithm and custom algorithm to comprehensively detect and judge whether there is fr...
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The invention discloses a method for detecting international fraudulent calls, which is characterized in that it comprises the following steps: S1: read data: extract the original CDR bill data of international outgoing calls from the informix database; S2: feature engineering: pair Preliminary screening of the above original CDR call list data to obtain call behavior characteristics; S3: Model detection: Use the isolated forest algorithm and custom algorithm to detect and judge whether there is fraudulent call behavior based on the number based on the call behavior characteristics; S4: Weighted summation judgment: The results of the isolation forest and the custom algorithm are weighted and summed. Each number corresponds to a threshold after being weighted. If it is greater than or equal to the threshold, it is an abnormal number, and if it is less than the threshold, it is a normal number. Beneficial effects of the present invention: the abnormal call detection method can effectively reduce the occurrence rate of international set settlement and the workload of manual review, thereby avoiding the user's economic loss to the greatest extent, reducing the occurrence rate of international set settlement, and providing telephone users with reliable Trusted calling service.
Description
technical field [0001] The invention relates to the field of information technology, in particular to a method for detecting international piracy. Background technique [0002] With the development of communication technology, more and more criminals use software and hardware to steal user communication numbers to call foreign charging platforms through communication technology, so that many phone users will generate abnormally high international call charges, not only to Users have brought economic losses and disturbed the normal social order. [0003] Telephone users hope to have a safe call environment to reduce and eliminate the occurrence of international piracy; national security departments, public security and other government departments, and telecom operators also hope to crack down on set settlement behaviors through technical means, so as to provide the public with a safe and credible call environment. Contents of the invention [0004] Aiming at the problems...
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IPC IPC(8): H04W12/126H04W12/128H04W24/08
CPCH04W12/12H04W24/08
Inventor 丁正顾晓东周红敏董伟卜小冲刘鑫
Owner 上海欣方智能系统有限公司