{'fraction_non_alphanumeric': 0.01675485008818342, 'fraction_numerical': 0.001763668430335097, 'mean_word_length': 5.376404494382022, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
KALASHNIKOV MEMORIAL SEMINAR On Multi-State Reliability Systems 1

In complex systems with controllable reliability any complete system failure does not occur suddenly but usually is a result of accumulation of a sequence of many gradual failures. It stimulates consideration of systems with gradual failures of different types, or multi-state reliability systems (for an extensive recent bibliography, see please, [1]. In this paper we propose a general approach to describe, model and evaluate the most common reliability characteristics of complex hierarchical systems with various types of gradual failures. Such failures may change the state of the system and the quality of its operation, but do not necessarily lead to complete system failure. The reliability of the system is partially controllable and in the case of detection of some failure it is repaired. We deal with probabilistic aspects of modeling system reliability and focus on both of its common characteristics, steady state probabilities and reliability function. We omit structural properties of the system, because it requests the concrete model investigation.