On Abrupt Changes of the Approximate and Sample Entropy Values in Supercomputer Power Consumption
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F21%3A10248388" target="_blank" >RIV/61989100:27740/21:10248388 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1742-6596/1730/1/012062" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/1730/1/012062</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/1730/1/012062" target="_blank" >10.1088/1742-6596/1730/1/012062</a>
Alternative languages
Result language
angličtina
Original language name
On Abrupt Changes of the Approximate and Sample Entropy Values in Supercomputer Power Consumption
Original language description
When calculating the Approximate Entropy (ApEn) and the Sample Entropy (SampEn) of a time series, representing the course of supercomputer power consumption, seemingly unexplained abrupt changes sometimes appear. These sudden changes occur when calculating the course of ApEn and SampEn values using a floating time window and can be manifested also in other discrete-valued time series, such as the development of prices on stock exchanges, time series from birth-death models, count-data time series, etc. These abrupt changes are not continuous and it is clear that they do not reflect real changes in the complexity degree of the analyzed time series. This can cause erroneous detection of a change in the degree of complexity of the time series, which can trigger a false alarm that something unusual is happening in the complex system being monitored (human brain, engine gearbox, financial market, supercomputer infrastructure, etc.). This work reveals in detail the mechanism of this phenomenon and also proposes measures to prevent its occurrence.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
<a href="/en/project/LM2018140" target="_blank" >LM2018140: e-Infrastructure CZ</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Journal of Physics: Conference Series. Volume 1730
ISBN
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ISSN
1742-6588
e-ISSN
1742-6596
Number of pages
9
Pages from-to
1-9
Publisher name
IOP Publishing
Place of publication
Bristol
Event location
Tinos
Event date
Sep 7, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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