The complexity of human performance variability on watch standing task

Waldemar Karwowski , David Kern , Atsuo Murata , Tareq Ahram , Edgar Gutierrez , Nabin Sapkota , Tadeusz Marek


The primary objective of this study was to examine the complexity of human temporal variability of topside roving watch task in naval operations concerning the reported times of ship status and to explore the potential presence of chaotic behavior and fractal properties of the reported log times. Topside rover reporting time intervals recorded in the deck logs of the USS Jason Dunham over the 2013-2015 period were analyzed to understand the underlying complexity of the watch standing task that is critical to the success of naval operations. The results on the 0-1 test, analysis of the largest Lyapunov exponents, as well the exploration of the fractal dimension and 1/f spectral analyses, showed that the fluctuation of standing watch time reports data exhibits chaotic and fractal system properties. The critical implications of the study findings for the human-centered design of complex systems were also discussed
Author Waldemar Karwowski
Waldemar Karwowski,,
, David Kern
David Kern,,
, Atsuo Murata
Atsuo Murata,,
, Tareq Ahram
Tareq Ahram,,
, Edgar Gutierrez
Edgar Gutierrez,,
, Nabin Sapkota
Nabin Sapkota,,
, Tadeusz Marek (Wydział Psychologii)
Tadeusz Marek,,
- Wydział Psychologii
Journal seriesApplied Ergonomics, ISSN 0003-6870, (N/A 100 pkt)
Issue year2019
Publication size in sheets0.5
Keywords in EnglishChaos; Complexity; Fractals; Human performance variability; Nonlinear systems dynamics; Watch standing task
ASJC Classification3612 Physical Therapy, Sports Therapy and Rehabilitation; 2700 General Medicine; 3307 Human Factors and Ergonomics
Languageen angielski
The complexity of human performance variability on watch standing task.pdf 1.92 MB
Additional file
Oświadczenie_T.Marek_The complexity.pdf 21.48 KB
Score (nominal)100
ScoreMinisterial score = 100.0, 15-10-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.662; WoS Impact Factor: 2017 = 2.435 (2) - 2017=2.663 (5)
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