{"blocks": [{"key": "cd2a5c22", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "1d33e6b5", "text": "Ranking Facebook Groups posts in a user's Newsfeed", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "fb5e76be", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "7cb58081", "text": "Design a machine-learning model to recommend Facebook Groups posts in Newsfeed.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "ace9d2a5", "text": "What features, labels, model family, offline/online evaluation, and deployment considerations would you use?", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "22074bc1", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "510e8d84", "text": "Think engagement signals, embeddings, multi-task learning, A/B validation.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}