In the context of computer science, „NBA“ typically refers to „Nondeterministic Büchi Automaton.“ An NBA is a theoretical model used in automata theory, which is a branch of computer science and formal language theory.
An NBA is a type of nondeterministic finite automaton (NFA) that is used to recognize omega-regular languages, which consist of infinite strings. The key feature of an NBA is that it has acceptance conditions based on sets of states, specifically Büchi acceptance conditions. An infinite input string is accepted by the NBA if there exists a run (a sequence of state transitions) such that at least one state from a set of designated accepting states is visited infinitely often during this run.
NBAs are instrumental in formal verification and model checking, where they are used to analyze systems that exhibit ongoing behavior, such as software programs and hardware circuits, inquiring whether they meet certain specifications over time.
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