Anomalous pattern detection

The second approach uses the pattern library in an inverse fashion, meaning that the library encodes only positive patterns marked with green plus signs in the following image. When an observed behavior (blue circle) cannot be matched against the library, it is considered anomalous:

Anomalous pattern detection

This approach requires us to model only what we have seen in the past, that is, normal patterns. If we return to the doctor example, the main reason we visited the doctor in the first place was because we did not feel fine. Our perceived state of feelings (for example, headache, sore skin) did not match our usual feelings, therefore, we decided ...

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