Problem Statement

Design a self-driving car system focusing on its perception component (semantic image segmentation in particular)

Problem Statement

Given a text and knowledge base, find all the entity mentions in the text(Recognize) and then link them to the corresponding correct entry in the knowledge base(Disambiguate).

Problem Statement

• How would you build an ML system to predict the probability of engagement for Ads?
  • Search engine
  • Social media platforms

Problem Statement

Display media recommendations for a specific user. Type of user feedback includes explicit and implicit feedbacks. The implicit feedback allows collecting a large amount of training data.

Problem Statement

Design a Twitter with 500 million daily active users feed system that will show the most relevant tweets for a user based on their social graph.

Clarifications/Functional Requirements

• Scope: general search or specialized search? web search or search on social media platform?
• Freshness: real-time search means incorporating trending queries and sources
• Personalization: logged-in user or not, location, search history

Key challenages: maximize relevance while minimize latency

Nonfunctional requirements

• Scale: number of websites? QPS (queries per second)?