Affirm数据相关面经_Affirm数据相关面试真题及高频题

1.Design a product

2.Checking Account for High school students

3.Character Appearance Count

4.Design a Hit Counter

5.Shortest Substring

6.Most Letter

7.Find the Company with the Highest Occurrence in Lists

8.Implement Incremental Decision Tree Growth

9.ML System Design for Real-Time Loan Approval/Rejection

10.Data Preprocessing Exercise

11.Merge Database Logs

12.CSV File Filtering and Optimization

13.Decision Tree Problem

14.Implement Decision Tree Methods

15.Most Frequent Word

16.XGBoost Hyperparameter Tuning

17.Handling Imbalanced Data

18.Define F1 Score

19.Explain ROC Curve

20.Unique Substring Identification

21.Find the Highest Frequency Word

22.Settling Out of Sync Balances

23.Calculating End of Day Balances

1. Design a product

Design a product to find doctors for people who are moving to a new city; assume you are a brand new startup

2. Checking Account for High school students

Checking Account for High school students

3. Character Appearance Count

How can you find the characters that appear the most times in a given text?

4. Design a Hit Counter

Design a hit counter which counts the number of hits received in the past 5 minutes. The counter should support two functions: hit(int timestamp), which records a hit at the given timestamp, and getHits(int timestamp), which returns the number of hits in the past 5 minutes. Discuss how to handle concurrent requests and optimize space and time complexity.

5. Shortest Substring

Given an input list of names, for each name, find the shortest substring that only appears in that name. For instance, with the input ['cheapair', 'cheapoair', 'peloton', 'pelican'], determine the shortest unique substring for each name.