"Because the world doesn't have single knowledge graph that you can learn and use in all situations."
The logical way to overcome this via a "data first" brute force approach is to build personalized knowledge graphs of every potential customer. Which is in effect what every statistically sophisticated large business is attempting.
The logical way to overcome this via a "data first" brute force approach is to build personalized knowledge graphs of every potential customer. Which is in effect what every statistically sophisticated large business is attempting.