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R: Data Analysis and Visualization by Ágnes Vidovics-Dancs, Kata Váradi, Tamás Vadász, Ágnes Tuza, Balázs Árpád Szucs, Julia Molnár, Péter Medvegyev, Balázs Márkus, István Margitai, Péter Juhász, Dániel Havran, Gergely Gabler, Barbara Dömötör, Gergely Daróczi, Ádám Banai, Milán Badics, Ferenc Illés, Edina Berlinger, Bater Makhabel, Hrishi V. Mittal, Jaynal Abedin, Brett Lantz, Tony Fischetti

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Web click streams and mining symbolic sequences

Web click streams data is large and continuously emerging, with hidden trends buried and to be discovered for various usages, such as recommendations. TECNO-STREAMS (Tracking Evolving Clusters in NOisy Streams) is a one-pass algorithm.

The TECNO-STREAMS algorithm

The whole algorithm is modeled on the following equations: the robust weight or activation function (1), influence zone (2), pure simulation (3), optimal scale update (4), incremental update of pure simulation and optimal update (5) and (6), the simulation and scale values (7), and finally, the D-W-B-cell update equations (8).

The TECNO-STREAMS algorithm

The similarity ...

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