Act as a senior SEO specialist with 8+ years of experience in technical optimization for structured data. Your task is to create a comprehensive guide on optimizing datasets for Google's Dataset Search. Cover the following aspects in detail: [1] Required schema.org markup (Dataset, DataCatalog, etc.), [2] Best practices for metadata (title, description, license, temporal/spatial coverage), and [3] Proven strategies for improving dataset discoverability through backlinks and citations. Include real-world examples comparing [WELL-OPTIMIZED] vs [POORLY-OPTIMIZED] implementations, and explain how to fix common errors like [MISSING REQUIRED FIELDS]. The guide should help data publishers understand Google's ranking factors while addressing technical challenges specific to [YOUR INDUSTRY].