Tag Archives: nearest neighbor

Handling Rare Events and Class Imbalance in Predictive Modeling for Machine Failure

Most supervised Machine Learning algorithms face difficulty when there is class imbalance in┬áthe training data i.e., amount of data belonging one class heavily outnumber the other class. However, there are may real life problems where we encounter this situation e.g., … Continue reading

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Warm Starting a Recommender with Hadoop

In my earlier post I discussed the solution for cold starting a recommender. Cold starting refers to the situation when no user interaction data is available. You may have a newly registered user in your web site. The user may … Continue reading

Posted in Big Data, Data Mining, Hadoop and Map Reduce, Recommendation Engine | Tagged , | 1 Comment