This repository contains past problem sets used for Preferred Networks and Preferred Infrastructure internship coding tasks. The overview of the problems is as follows.
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2017(PFN, English/Japanese) :
- Machine learning and mathematics - Reinforcement learning, Cartpole, Cross Entropy Method.
- Front-end - Creation of search UI.
- Back-end - Implementation of 'ls' command.
- Chip
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2016(PFN/PFI, Japanese only) : Unsupervised learning. Auto-encoder and its extension.
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2015(PFN/PFI, Japanese only) : Supervised learning. Data preprocessing, perceptron, ZCA Whitening, and its extension.
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2014(PFI, Japanese only) : Template matching.
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2013(PFI, Japanese only) : Search algorithms on random graphs.
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2012(PFI, Japanese only) : String processing. Generalized word chain game.
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2011(PFI, Japanese only) : String processing. Palindrome.