If I had to rebuild my data portfolio from scratch this weekend, here’s the exact 4 datasets I’d steal
1️⃣ NYC 311 Service Requests (9M+ rows)
Skill: Data cleaning + time-series
2️⃣ Yelp Open Reviews
Skill: NLP sentiment analysis
3️⃣ Spotify Tracks & Audio Features
Skill: Feature engineering + clustering
4️⃣ LendingClub Loan Stats
Skill: Imbalanced classification
Pick one, scope a 6-hour mini-project.
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