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Machine Learning in the MAIL.RU Advertising System

TalkinRussianat HighLoad++ 2014 · 2014-10-31..11-01· [machine-learning, data-engineering]
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slides:none on file

MAIL.RU’s advertising system uses machine learning on clickstream data stored in HDFS (about 100K records/sec) to train classifiers that segment Internet users. Features are represented with a high-dimensional sparse bag-of-words model, and dimensionality reduction via Latent Dirichlet Allocation (LDA) is applied, which in some cases also provides topic modeling of the feature distribution.

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