Monthly Archives: January 2015

My recent work in Recommendation System

Need time to write up.


Yelp is an online urban guide that helps people find recommended destinations based on the informed opinions and reviews of a community.

Goal: the high level goal of this project is to apply existing built-in PredictionIO engines to a new domain and new dataset.

For this project you will build a restaurant recommendation engine (see Yelp) using built-in Item Recommendation engine and the Yelp dataset.


Yelp dataset via Kaggle –

Demo link:


i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>

Deep Learning + NLP (PFIの勉強会)

  1. Deep Learning とは?
    • Neural Network (input, hidden, output) の拡張: hidden layers >= 2(階層を増やす)
    • Hidden layers:
      • Deep Brief Network
      • Convolutional Neural Network (image recognition)
      • Stacked Auto Encoder
      • Recursive NN
      • Recurrence NN
    • 画像認識精度アップ、音声認識、薬物の活性の推測
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