{"blocks": [{"key": "59eedafc", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "5c4110ed", "text": "Airport surge pricing push notifications: deciding which drivers to notify when supply < demand", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "96e16f4a", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "e0e9e8f7", "text": "How would you design a push-notification ranking system that determines how many drivers to target and which drivers to include when airport surge pricing occurs? Why could a simple distance-radius rule perform poorly, and what improvements would you propose? Besides ETA, which additional features or metrics would you engineer to decide whether to send a notification? If neighborhood supply-demand imbalance may be predictive, how would you detect whether a region is imbalanced enough to trigger a notification?", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "a0524936", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "45550db0", "text": "Discuss feature engineering, predictive modeling, supply-demand signals, real-time data, model evaluation.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}