What type of language is accepted by linear bounded automata?

For any linear-bounded grammar G there exists a linear- bounded automaton which accepts the language L(G) generated by G.

How is linear bounded different from automata?

An LBA differs from a Turing machine in that while the tape is initially considered to have unbounded length, only a finite contiguous portion of the tape, whose length is a linear function of the length of the initial input, can be accessed by the read/write head; hence the name linear bounded automaton.

How many tuples are used to define linear bound automata?

10 A nondeterministic linear bounded automaton (LBA) µ is a 5-tuple (A, Q, δ, q0,F) where the components are defined as fol- lows: A – The tape alphabet, defined as Σ ∪ {>, <, ⊔}. These extra symbols are the left and right end markers and empty symbol respectively.

How many tuples does LBA have?

6-tuple
1: a linear bounded automaton (LBA) A is a 6-tuple A = (S, _______, s0, R), where S (states) is a finite non empty set, _ (tape alphabet) is a finite non empty set, ______(input alphabet) is a non empty set, s0_S (start state), R _ S (recognizing or accepting states), and _: S_____p(S___{l, r}) is the next-move …

Which type of symbols contain in the stack of PDA?

The PDA has one state, but we allow multiple stack operations. The stack symbols are the terminals and nonterminals of the grammar. The designated starting stack symbol is the grammar start symbol. We’ll illustrate the algorithm with an example.

What is linear bound automata in TOC?

A linear bounded automaton is a multi-track non-deterministic Turing machine with a tape of some bounded finite length. Length = function (Length of the initial input string, constant c) Here, Memory information ≤ c × Input information. The computation is restricted to the constant bounded area.

What is a linear bounded automaton?

A linear bounded automaton is a multi-track non-deterministic Turing machine with a tape of some bounded finite length.

What is the difference between deterministic and undecidable linear bounded automata?

A deterministic linear bounded automaton is always context-sensitive and the linear bounded automaton with empty language is undecidable..

Are linear bounded automata context-sensitive?

Linear bounded automata are acceptors for the class of context-sensitive languages. The only restriction placed on grammars for such languages is that no production maps a string to a shorter string.

Why is the simplest automata not an adequate model of computation?

The simplest automata used for computation is a finite automaton. It can compute only very primitive functions; therefore, it is not an adequate computation model. In addition, a finite-state machine’s inability to generalize computations hinders its power.