The impact of administrator working hours on the reliability of the Centre of Language Technology

• Autorzy: Walkowiak T. , Pol M.
• Języki publikacji: EN

Abstrakty

EN

The paper presents reliability analysis of CLARIN-PL Centre of Language Technology (CLT). The CLT is a Polish part of the language technology infrastructure developed by CLARIN project. The main goal of which is to support researchers in humanities and social sciences. The infrastructure is a complex computer system that enables combining language tools with language resources into processing chains. Authors present the system structure, analyse types of faults and define the CLT reliability model. The model takes into account the fact the time gap, between the failure and the repair of the system is not exponential since repair actions are taken only when administrators are at work (assuming that administrators are not working 24/7). The model is used to estimate reliability metrics (mean time and 90th percentile of relative down time and relative partial operational time) by a use of Monte-Carlo simulation. Moreover, analysis of possible improvement in the CLT organisation and its influence on the estimated metrics is given.

Słowa kluczowe

EN

reliability; repair time; working hours; language technology infrastructure; natural language processing; CLARIN-PL

• Wydawca: Polskie Towarzystwo Bezpieczeństwa i Niezawodności
• Czasopismo: Journal of Polish Safety and Reliability Association
• Rocznik: 2017
• Tom: Vol. 8, No. 1
• Strony: 167--174
• Opis fizyczny: Bibliogr. 16 poz., tab.

Twórcy

autor

Walkowiak T.

• Wroclaw University of Science and Technology, Faculty of Electronics, Poland

autor

Pol M.

• Wroclaw University of Science and Technology, Faculty of Computer Science and Management, Poland

Bibliografia

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• [13] Walkowiak, T. & Caban, D. (2015). Improvement of dependability of complex web based systems by service reconfiguration. Dependability Problems of Complex Information Systems. Advances in Intelligent Systems and Computing 307, 149-165.
• [14] Walkowiak, T. (2014). Simulation based availability assessment of services provided by web applications with realistic repair time. Eksploatacja i Niezawodnosc - Maintenance and Reliability. 16 (2), 341-346.
• [15] Walkowiak, T. (2014). Weekly availability changes of web applications implemented in virtualized environment. Nowakowski, T. et al. Safety and Reliability: Methodology and Applications, CRC Press.
• [16] Walkowiak, T. (2016). A repair time model of a web based system including administrator working hours. Journal of Polish Safety and Reliability Association, 7(1), 233-240.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).