Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/37253
Title: Evaluating time series similarity using concept-based models
Authors: Jastrzebska, Agnieszka
NAPOLES RUIZ, Gonzalo 
Salgueiro, Yamisleydi
VANHOOF, Koen 
Issue Date: 2022
Publisher: ELSEVIER
Source: Knowledge-based Systems, 238 , (Art N° 107811)
Abstract: Time series similarity evaluation is a crucial processing task performed either as a stand-alone action or as a part of extensive data analysis schemes. Among essential procedures that rely on measuring time series similarity, we find time series clustering and classification. While the similarity of regular (not temporal) data frames is studied extensively, there are not many methods that account for the time flow. In particular, there is a need for methods that are easy to interpret by a human being. In this paper, we present a concept-based approach for time series similarity evaluation. Firstly, a global model describing a given dataset of time series (made of two or more time series) is built. Then, for each time series in the dataset, we create the corresponding local model. Comparing time series is performed with the aid of their local models instead of raw time series values. In the paper, the described processing scheme is implemented using fuzzy sets representing concepts. The proposed approach has been applied to the task of time series classification, yielding highly satisfactory results.& nbsp;(c) 2021 Elsevier B.V. All rights reserved.
Notes: Jastrzebska, A (corresponding author), Warsaw Univ Technol, Fac Math & Informat Sci, Warsaw, Poland.
A.Jastrzebska@mini.pw.edu.pl
Keywords: Time series;Concept-based model;Similarity;Time series clustering;Time series classification;Fuzzy models
Document URI: http://hdl.handle.net/1942/37253
ISSN: 0950-7051
e-ISSN: 1872-7409
DOI: 10.1016/j.knosys.2021.107811
ISI #: WOS:000779180700021
Rights: 2021 Elsevier B.V. All rights reserved.
Category: A1
Type: Journal Contribution
Validations: ecoom 2023
Appears in Collections:Research publications

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