Schlüter, Stephan and Kresoja, Milena (2019) Two preprocessing algorithms for climate time series. Journal of Applied Statistics. ISSN 0266-4763
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Abstract
We propose two preprocessing algorithms suitable for climate time series. The first algorithm detects outliers based on an autoregressive cost update mechanism. The second one is based on the wavelet transform, a methodfrom pattern recognition. In order to benchmark the algorithms’ performance we compare them to existing methods based on a synthetic data set. Eventually, for exemplary purposes, the proposed methods are applied to a data set of high-frequent temperature measurements from Novi Sad, Serbia. The results show that both methods together form a powerful tool for signal preprocessing: In case of solitary outliers the autoregressive cost update mechanism prevails, whereas the wavelet-based mechanism is the method of choice in the presence of multiple consecutive outliers.
Item Type: | Article |
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Additional Information: | COBISS.ID=512596066 |
Uncontrolled Keywords: | data preprocessing, outliers, temperature, wavelets |
Research Department: | Sustainable Development |
Depositing User: | Jelena Banovic |
Date Deposited: | 03 Feb 2020 10:09 |
Last Modified: | 31 Mar 2021 08:20 |
URI: | http://ebooks.ien.bg.ac.rs/id/eprint/1417 |
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