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Stefan Otte - On Bandits, Bayes, and swipes: gamification of search

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Published on Jul 26, 2017

Description
The talk will show how to use active learning to work with Small Data. Active learning is an underappreciated subfield of ML where the algorithm actively gathers labeled data, e.g. it can query the user for the most informative data. I will discuss the basics of active learning theory, and look at a case study showing how to use active learning and tailor it to a practical problem.

Abstract
The first part of the talk is about active learning:

-What is it?
-How does it work?
-What are the different flavours of active learning?
-Does it help me solve my problem?
The second part presents a case study where we developed an engaging and fun way to search for your dream car.

The case study - uses an intuitive interface (swipes), - actively and efficiently explores and learns the user's preferences (with multi-armed bandits, an active learning algorithm), - incorporates priors (clustering and Bayes to avoid popularity biases) - is scalable.

The talk is less about specific tools and libs - even though everything was done with python’s usual suspects (numpy, scipy, sklearn, flask, etc.) - but how to make active learning work for you.

www.pydata.org

PyData is an educational program of NumFOCUS, a 501(c)3 non-profit organization in the United States. PyData provides a forum for the international community of users and developers of data analysis tools to share ideas and learn from each other. The global PyData network promotes discussion of best practices, new approaches, and emerging technologies for data management, processing, analytics, and visualization. PyData communities approach data science using many languages, including (but not limited to) Python, Julia, and R.

PyData conferences aim to be accessible and community-driven, with novice to advanced level presentations. PyData tutorials and talks bring attendees the latest project features along with cutting-edge use cases.

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