Finite Automata
What do you understand by the term Finite Automata ?
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Finite automata is a simple model of computation
It reads input from left to right, and one symbol at a time
It maintains state: The information regarding what seen so far (“memory”)
Begin with deterministic finite automata (DFA)
It can be described by two ways that is, by diagram or formally.
Define the term Regular expressions ?
How can we characterize DFA languages ?
Let α be a regular expression of length n. (a) Using procedures shown in class, if we convert α into a regular expression β such that L(β) = L(α). How long β might be? Give a reasonably tight upper bound.
Explain briefly NFA operation with example.
Define various Terminologies used in TOC ?
Give an algorithm that, given a grammar G = (V, Σ, R, S), decides whether the grammar G can derive the empty string.
Explain how light TP monitors allow distributed applications based on RPC to have transaction properties.
What is the formal definition of DFA ?
Proof the theorem that the class of regular languages is closed under union; that is, if L1 is recognized by a NFA and L2 is recognized by a NFA, then L1 υ L2 is recognized by a NFA as well.
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