Write the code in python programming for the below problem. Introduction One useful data point in detecting fraud is the account history of a customer. For an account, we receive notification of purchases and, sometimes, reports of fraud. Typically, a prior report of fraud for an account would increase the perceived risk of fraud on future transactions. Similarly, a history of non-fraudulent purchases for an account would decrease the risk of fraud. A credit card holder has 90 days to report any fraudulent transactions with the card. So if an account has purchases over 90 days old and no reports of fraud, we assume that these older purchases were not-fraudulent. Problem Description The purpose of this programming problem is to determine the status of a customer account history at the time a new purchase is made. The input is a sequence of customer account events, in chronological order. Each event has three fields, all of which are of string type ,, For example: 2015-01-01,joe@signifyd.com,PURCHASE 2015-02-01,fraudster@fraud.com,FRAUD_REPORT There are two event types: 1. PURCHASE - indicates a purchase by this customer account on the specified date. 2. FRAUD_REPORT - indicates we received a report of fraud associated with this customer account. The specified date is that date that we received the report, not the date the fraud was committed. For each eventPURCHASE, we are interested in a summary of the customer account history based on prior events. The summary consists of the date of the summary, the customer account id, and a status. There are four possible values for the status of the customer account history: 1. NO_HISTORY - there are no prior events for this customer account 2. FRAUD_HISTORY - we have at least one event FRAUD_REPORT for this customer account. 3. GOOD_HISTORY- customer account has no FRAUD_REPORTs and at least one prior that PURCHASEis more than 90 days old. 4. UNCONFIRMED_HISTORY - customer account has no FRAUD_REPORTs and at least one priorPURCHASE but no PURCHASEs over 90 days old. For accounts with FRAUD_HISTORY, GOOD_HISTORY, and UNCONFIRMED_HISTORY, the status also contains a count of relevant events. ● FRAUD_HISTORY - count of FRAUD_REPORTs ● GOOD_HISTORY - count of priorsPURCHASE over 90 days old ● UNCONFIRMED_HISTORY- count of prior purchases. The output is expected to be in the same order as the input. Sample Input and Output For the following input: 2015-01-01,joe@signifyd.com,PURCHASE 2015-02-01,fraudster@fraud.com,FRAUD_REPORT 2015-02-03,fraudster@fraud.com,FRAUD_REPORT 2015-02-10,joe@signifyd.com,PURCHASE 2015-02-14,fraudster@fraud.com,PURCHASE 2015-03-15,joe@signifyd.com,PURCHASE 2015-05-01,joe@signifyd.com,PURCHASE 2015-10-01,joe@signifyd.com,PURCHASE The following output is expected. 2015-01-01,joe@signifyd.com,NO_HISTORY 2015-02-10,joe@signifyd.com,UNCONFIRMED_HISTORY:1 2015-02-14,fraudster@fraud.com,FRAUD_HISTORY:2 2015-03-15,joe@signifyd.com,UNCONFIRMED_HISTORY:2 2015-05-01,joe@signifyd.com,GOOD_HISTORY:1 2015-10-01,joe@signifyd.com,GOOD_HISTORY:4
Write the code in python programming for the below problem.
Introduction One useful data point in detecting fraud is the account history of a customer. For an account, we receive notification of purchases and, sometimes, reports of fraud. Typically, a prior report of fraud for an account would increase the perceived risk of fraud on future transactions. Similarly, a history of non-fraudulent purchases for an account would decrease the risk of fraud. A credit card holder has 90 days to report any fraudulent transactions with the card. So if an account has purchases over 90 days old and no reports of fraud, we assume that these older purchases were not-fraudulent.
Problem Description
The purpose of this programming problem is to determine the status of a customer account history at the time a new purchase is made. The input is a sequence of customer account events, in chronological order. Each event has three fields, all of which are of string type ,,
For example:
2015-01-01,joe@signifyd.com,PURCHASE
2015-02-01,fraudster@fraud.com,FRAUD_REPORT
There are two event types:
1. PURCHASE - indicates a purchase by this customer account on the specified date.
2. FRAUD_REPORT - indicates we received a report of fraud associated with this customer account. The specified date is that date that we received the report, not the date the fraud was committed. For each eventPURCHASE, we are interested in a summary of the customer account history based on prior events. The summary consists of the date of the summary, the customer account id, and a status. There are four possible values for the status of the customer account history:
1. NO_HISTORY - there are no prior events for this customer account
2. FRAUD_HISTORY - we have at least one event FRAUD_REPORT for this customer account.
3. GOOD_HISTORY- customer account has no FRAUD_REPORTs and at least one prior that PURCHASEis more than 90 days old.
4. UNCONFIRMED_HISTORY - customer account has no FRAUD_REPORTs and at least one priorPURCHASE but no PURCHASEs over 90 days old. For accounts with FRAUD_HISTORY, GOOD_HISTORY, and UNCONFIRMED_HISTORY, the status also contains a count of relevant events.
● FRAUD_HISTORY - count of FRAUD_REPORTs
● GOOD_HISTORY - count of priorsPURCHASE over 90 days old
● UNCONFIRMED_HISTORY- count of prior purchases. The output is expected to be in the same order as the input. Sample Input and Output For the following input:
2015-01-01,joe@signifyd.com,PURCHASE
2015-02-01,fraudster@fraud.com,FRAUD_REPORT
2015-02-03,fraudster@fraud.com,FRAUD_REPORT
2015-02-10,joe@signifyd.com,PURCHASE
2015-02-14,fraudster@fraud.com,PURCHASE
2015-03-15,joe@signifyd.com,PURCHASE
2015-05-01,joe@signifyd.com,PURCHASE
2015-10-01,joe@signifyd.com,PURCHASE
The following output is expected.
2015-01-01,joe@signifyd.com,NO_HISTORY
2015-02-10,joe@signifyd.com,UNCONFIRMED_HISTORY:1
2015-02-14,fraudster@fraud.com,FRAUD_HISTORY:2
2015-03-15,joe@signifyd.com,UNCONFIRMED_HISTORY:2
2015-05-01,joe@signifyd.com,GOOD_HISTORY:1
2015-10-01,joe@signifyd.com,GOOD_HISTORY:4
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
