1. Freebase
2. Google news personalization
3. A Caputo E Ali and S Lawless. 2017. Entity Attribute Ranking Using Learning to Rank. http://ceur-ws.org/Vol-1883/paper_10.pdf. CEUR 1883(2017). A Caputo E Ali and S Lawless. 2017. Entity Attribute Ranking Using Learning to Rank. http://ceur-ws.org/Vol-1883/paper_10.pdf. CEUR 1883(2017).
4. Personalized news recommendation with context trees