1. Facebook is making an Alexa rival for its Portal and Oculus

2. Crowdsourcing, AI go together in battle against lung cance

3. Amazon Go, Cafe X show a future of retail automation

4. Uber vs. Lyft: How the rivals approach cloud, AI

1. Why Walmart's new robots won't kill jobs

2. The rise of voice technology

3. How AI is impacting the future of smartphone photography

4. What the Galaxy Fold phone issues say about Samsung