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Clustering and Semi-Supervised Classification for Clickstream Data via Mixture Models

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(2018)cite arxiv:1802.04849.

Abstract

Finite mixture models have been used for unsupervised learning for over 60 years, and their use within the semi-supervised paradigm is becoming more commonplace. Clickstream data is one of the various emerging data types that demands particular attention because there is a notable paucity of statistical learning approaches currently available. A mixture of first order continuous time Markov models is introduced for unsupervised and semi-supervised learning of clickstream data. This approach assumes continuous time, which distinguishes it from existing mixture model-based approaches; practically, this allows account to be taken of the amount of time each user spends on each website. The approach is evaluated, and compared to the discrete time approach, using simulated and real data.

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