Journal
DATA & KNOWLEDGE ENGINEERING
Volume 37, Issue 3, Pages 243-266Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0169-023X(01)00008-8
Keywords
Web log mining; path traversal; graph model
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In data models that have graph representations, users navigate following the links of the graph structure. Conducting data mining on collected information about user accesses in such models, involves the determination of frequently occurring access sequences. In this paper, the problem of finding traversal patterns from such collections is examined. The determination of patterns is based on the graph structure of the model. For this purpose, three algorithms, one which is level-wise with respect to the lengths of the patterns and two which are not are presented. Additionally, we consider the fact that accesses within patterns may be interleaved with random accesses due to navigational purposes. The definition of the pattern type generalizes existing ones in order to take into account this fact. The performance of all algorithms and their sensitivity to several parameters is examined experimentally. (C) 2001 Elsevier Science B.V. All rights reserved.
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