I am a research scientist with broad interests in practical and theoretical machine learning. My work on large scale learning and stochastic gradient algorithms has received attention in the recent years. I am also known for the DjVu document compression system. I joined Facebook AI Research in March 2015.
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Why settle for 60000 MNIST training examples when you can have one trillion?
The MNIST8M dataset was generated using the elastic deformation code originally written for (Loosli, Canu, and Bottou, 2007). Unfortunately the original MNIST8M files were accidentally deleted from the NEC servers a couple weeks ago. Instead of regenerating the files, I have repackaged the generation code in a convenient form. You can now generate arbitrary amounts of pseudo-random MNIST training examples. You can even use this code to generate your training data on the fly. We call this the infinite MNIST dataset.
Our paper “Counterfactual Reasoning and Learning Systems: The Example of Computational Advertising” has appeared in JMLR. This paper takes the example of ad placement to illustrate how one can leverage causal inference to understand the behavior of complex learning systems interacting with their environment and predict the consequences of changes to the system. Such predictions allow both humans and algorithms to select changes that improve both the short-term and long-term performance. In particular, the paper demonstrates the connection between the classic explore–exploit and correlation–causation issues in machine learning and statistics.
Nips just took place near Lake Tahoe. Many people have written how things are changing in machine learning. There also were many interesting papers and invited talks. Thanks to the program chairs Max and Zoubin for producing this exciting conference program. Thanks to the workshop chairs Rich Caruana and Gunnar Rätsch for the stimulating workshops. Thanks to Terry Sejnowsky for creating NIPS, and special thanks to Mary-Ellen Perry without whom nothing would happen.
The report “Counterfactual Reasoning and Learning Systems” shows how to leverage causal inference to understand the behavior of complex learning systems interacting with their environment and predict the consequences of changes to the system. Such predictions allow both humans and algorithms to select changes that improve both the short-term and long-term performance of such systems. This work is illustrated by experiments carried out on the ad placement system associated with the Bing search engine.