Question
A bank notices unusual activity in a customer’s
account, such as multiple large withdrawals in a short period. What is the most appropriate technique to detect fraud in such cases?Solution
Anomaly detection identifies data points that deviate significantly from the norm. In fraud detection, it flags unusual transactions, such as large withdrawals or geographically improbable activity, for further investigation. Techniques like isolation forests or Z-scores are commonly used. Option A : Logistic regression predicts binary outcomes but isn’t specialized for anomalies. Option C : Clustering groups similar data but doesn’t detect deviations effectively. Option D : Decision trees classify data but are not optimal for real-time anomaly detection. Option E : A/B testing is unrelated to fraud detection.
'A $ B' means 'A is the mother of B'. 'A % B' means 'A is the wife of B'. 'A @ B' means 'A is the sister of B'. 'A # B' means 'A is the son of B'. If I ...
In expression ‘G $ H & I @ J # K % L $ M & N’ who is the only daughter of I?
P + Q means ‘P is the brother of Q’, P - Q means ‘P is the daughter of Q’, P ÷ Q means ‘P is the husband of Q’, P × Q means ‘P is the so...
How is H related to M?
If J & I @ H + G is true then, how is G related to J?
If F & G $ I @ H % J is true then how is F related to J?
'A # B' means 'A is the husband of B'. 'A @ B' means 'A is the mother of B'. 'A & B' means 'A is the sister of B'. 'A $ B' means 'A is the child of B'. ...
Statements : X = E > U, T ≥ V > W, E > W = U
Conclusions : I. T >U II. X ≥ V
Which of the following can be the correct conclusion drawn from the expression?
‘R + S % T $ U @ V’?
A # B means ‘A is the brother of B’
A @ B means ‘A is the daughter of B’
A & B means ‘A is the husband of B’
A % B ...
