{"blocks": [{"key": "a1061070", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "af9e6e17", "text": "Building an automated house-price valuation service for a real-estate platform.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "6842333c", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "edd88597", "text": "Walk us through how you would design a home-price estimation model, covering: target metric definition, data collection, data splitting strategy, feature engineering, model selection, validation, deployment monitoring, and handling user complaints about prediction errors.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "fb93f542", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "c87238f0", "text": "Discuss hit-rate style metric, multi-year sale history, time-based or geo split, comparable sales & economic indicators as features, baseline linear → tree models, suburb-level monitoring, and clear communication with users.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}