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Tuesday, November 10 • 11:30am - 12:00pm
Quora: Machine learning algorithms to grow the world's knowledge - Xavier Amatriain

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At Quora our mission is to “share and grow the world's knowledge”. We want to do this by getting the right questions to the right people to answer them, but also by getting the existing answers to people who are interested in them. In order to accomplish this we need to build a complex ecosystem where we value issues such as content quality, engagement, demand, interests, or reputation. It is not possible to build a system like this unless most of the process are highly automated and scalable. We are fortunate though to have lots of very good quality data on which to build machine learning solutions that can help address all of the previous requirements.

In this talk I will describe some interesting uses of machine learning at Quora that range from different recommendation approaches such as personalized ranking to classifiers built to detect duplicate questions or spam. I will describe some of the modeling and feature engineering approaches that go into building these systems. I will also share some of the challenges faced when building such a large-scale knowledge base of human-generated knowledge.

Speakers
avatar for Xavier Amatriain

Xavier Amatriain

VP of Engineering, Quora
Xavier Amatriain is VP of Engineering at Quora, where he leads the team building the best source of knowledge in the Internet. With over 50 publications in different fields, Xavier is best known for his work on Machine Learning in general, and Recommender Systems in particular. Before Quora, he was Research/Engineering Director at Netflix, where he led the team building the famous Netflix Recommendation algorithms. Previously, Xavier was also... Read More →


Tuesday November 10, 2015 11:30am - 12:00pm
Erdos Stage