# Problem types - spotting something unusual ## Definition ### [[Nexus - Google Analytics Certificate Course|Google Analytics Certificate]] >[! Definition] >Identifying data that is different than from the norm. ## Example problem statements _How can we avoid future instances of fraudulent activity? _ - Data: historical transaction, balanced data set by oversampling and/or synthetic data. - Approach: unusual things are unusual. Thus there might not be too many facts that exist in a dataset as examples of the unusual data. Key here is to define some known unusual activity and make a balanced data set in the process phase while keeping all things fair. ## Related [[Problem types]] ## Resources ## Flashcards Identifying data that is different than from the norm. @@@ [[Problem types - spotting something unusual]] <!--SR:!2024-11-28,16,290!2024-11-11,4,270-->