Abnormality detecting apparatus for communication terminal and abnormality detecting method for communication terminal
First Claim
1. An abnormality detection apparatus for communication terminal, comprising:
- a pattern model storage unit configured to store behavior pattern models as a probabilistic model of transition relations of events relevant to operations and calls on a communication terminal, the behavior pattern models include a normal behavior pattern model that represents normal behavior of a user, and an abnormal behavior pattern model that is constructed with events extracted from the normal behavior pattern as factors of a higher degree of abnormality;
a terminal information obtaining unit configured to detect terminal information about the operations and the calls on the communication terminal;
a pattern determination unit configured to determine whether or not a current behavior pattern is a normal behavior pattern by comparing the terminal information detected by the terminal information obtaining unit with the behavior pattern models stored in the pattern model storage unit, wherein the abnormal behavior pattern model is used when the communication terminal is engaged with a call; and
a warning generation unit configured to output predetermined warning information to the communication terminal when the pattern determination unit determines that the terminal information detected by the terminal information obtaining unit is not within a normal behavior pattern.
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Accused Products
Abstract
An abnormality detection apparatus for communication terminal that detects an abnormality based on terminal information regarding operations and callings on the communication terminal, and an abnormality detection method are provided to prevent frauds using communication terminals such as a telephone set. A abnormality detection apparatus for communication terminal, including: a pattern model storage unit configured to store behavior pattern models as a probabilistic model of transition relations of events relevant to operations and calls on a communication terminal; a terminal information obtaining unit configured to detect terminal information about the operations and the calls on the communication terminal; a pattern determination unit configured to determine whether or not a current behavior pattern is a normal behavior pattern by comparing the terminal information detected by the terminal information obtaining unit with the behavior pattern models stored in the pattern model storage unit; and a warning generation unit configured to output predetermined warning information when the pattern determination unit determines that the terminal information detected by the terminal information obtaining unit is not within a normal behavior pattern.
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Citations
11 Claims
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1. An abnormality detection apparatus for communication terminal, comprising:
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a pattern model storage unit configured to store behavior pattern models as a probabilistic model of transition relations of events relevant to operations and calls on a communication terminal, the behavior pattern models include a normal behavior pattern model that represents normal behavior of a user, and an abnormal behavior pattern model that is constructed with events extracted from the normal behavior pattern as factors of a higher degree of abnormality; a terminal information obtaining unit configured to detect terminal information about the operations and the calls on the communication terminal; a pattern determination unit configured to determine whether or not a current behavior pattern is a normal behavior pattern by comparing the terminal information detected by the terminal information obtaining unit with the behavior pattern models stored in the pattern model storage unit, wherein the abnormal behavior pattern model is used when the communication terminal is engaged with a call; and a warning generation unit configured to output predetermined warning information to the communication terminal when the pattern determination unit determines that the terminal information detected by the terminal information obtaining unit is not within a normal behavior pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9)
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8. An abnormality detection method for communication terminal for causing a computer and a cell-phone to function as an abnormality detection apparatus, the method comprising:
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storing behavior pattern models as a probabilistic model of transition relations of events relevant to operations and calls on a communication terminal into a predetermined storage area, the behavior pattern models include a normal behavior pattern model that represents normal behavior of a user, and an abnormal behavior pattern model that is constructed with events extracted from the normal behavior pattern as factors of a higher degree of abnormality; detecting terminal information about the operations and the calls on the communication terminal; determining whether or not a current behavior pattern is a normal behavior pattern by comparing the detected terminal information with the behavior pattern models stored in the storage area, wherein the abnormal behavior pattern model is used when the communication terminal is engaged with a call; and outputting warning information to the communication terminal when the terminal information is not within a normal behavior pattern. - View Dependent Claims (10, 11)
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Specification