1. Deepak Agarwal and Bee-Chung Chen. 2009. Regression-based latent factor models. In KDD. 19--28. 10.1145/1557019.1557029 Deepak Agarwal and Bee-Chung Chen. 2009. Regression-based latent factor models. In KDD. 19--28. 10.1145/1557019.1557029
2. Xavier Amatriain. 2012. Building industrial-scale real-world recommender systems RecSys. 7--8. 10.1145/2365952.2365958 Xavier Amatriain. 2012. Building industrial-scale real-world recommender systems RecSys. 7--8. 10.1145/2365952.2365958
3. George Anders. 2017. Alexa Understand Me. https://www.technologyreview.com/s/608571/alexa-understand-me/. Accessed: 2017--10--25. George Anders. 2017. Alexa Understand Me. https://www.technologyreview.com/s/608571/alexa-understand-me/. Accessed: 2017--10--25.
4. Query Recommendation Using Query Logs in Search Engines