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  • Blog Post: Co-occurrence Approach to an Item Based Recommender Update

    In a previous post I talked about a Co-occurrence Approach to an Item Based Recommender , that utilized the Math.Net Numerics library. Recently the Math.Net Numerics library was updated to version 2.3.0. With this version of the library I was able to update the code to more efficiently read the Sparse...
  • Blog Post: Co-occurrence Approach to an Item Based Recommender

    For a while I thought I would tackle the problem of creating an item-based recommender. Firstly I will start with a local variant before moving onto a MapReduce version. The current version of the code can be found at: http://code.msdn.microsoft.com/Co-occurrence-Approach-to-57027db7 The approach taken...
  • Blog Post: .Net Implementation of a Priority Queue (aka Heap)

    I thought I would take a break for a while from Hadoop and put together an F# .Net implementation of a Priority Queue; implemented using a heap data structure. Conceptually we can think of a heap as a balanced binary tree. The tree will have a root, and each node can have up to two children; a left and...
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