A Higher Order Mining Approach for the Analysis of Real-World Datasets

Shahrooz Abghari, Veselka Boeva, Jens Brage and Håkan Grahn
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Shahrooz Abghari: Department of Computer Science, Blekinge Institute of Technology, SE-371 79 Karlskrona, Sweden
Veselka Boeva: Department of Computer Science, Blekinge Institute of Technology, SE-371 79 Karlskrona, Sweden
Jens Brage: NODA Intelligent Systems AB, SE-374 35 Karlshamn, Sweden
Håkan Grahn: Department of Computer Science, Blekinge Institute of Technology, SE-371 79 Karlskrona, Sweden

Energies, 2020, vol. 13, issue 21, 1-23

Abstract: In this study, we propose a higher order mining approach that can be used for the analysis of real-world datasets. The approach can be used to monitor and identify the deviating operational behaviour of the studied phenomenon in the absence of prior knowledge about the data. The proposed approach consists of several different data analysis techniques, such as sequential pattern mining, clustering analysis, consensus clustering and the minimum spanning tree (MST). Initially, a clustering analysis is performed on the extracted patterns to model the behavioural modes of the studied phenomenon for a given time interval. The generated clustering models, which correspond to every two consecutive time intervals, can further be assessed to determine changes in the monitored behaviour. In cases in which significant differences are observed, further analysis is performed by integrating the generated models into a consensus clustering and applying an MST to identify deviating behaviours. The validity and potential of the proposed approach is demonstrated on a real-world dataset originating from a network of district heating (DH) substations. The obtained results show that our approach is capable of detecting deviating and sub-optimal behaviours of DH substations.

Keywords: outlier detection; fault detection; higher order mining; clustering analysis; minimum spanning tree; data mining; district heating substations (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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