Big Data Projects
Free CFA Level II lesson in Quantitative Methods. 14 min read, ~2,084 words.
Data types: structured (fixed relational schema), semi-structured (tags but flexible, e.g. JSON, XML), unstructured (no fixed format, e.g. text, images, audio). Big data = volume, velocity, variety, veracity; unstructured data dominates by volume. Data preparation (wrangling) consumes 60-80% of project effort: cleaning, transforming, restructuring. Listwise deletion is safe only when...
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What this lesson covers
- Content
- Example 1
- Example 2
- Common Mistakes
- Check Your Understanding
- Exam Shortcuts
Learning objectives
- big data projects
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