Title: Parallel parsing on a one-way linear array of finite-state machines
Abstract: Efficient parallel algorithms for some parsing problems are presented. These problems include the parsing of linear context-free languages, languages accepted by nondeterministic one-counter automata, and transductions defined by a special class of two-tape nondeterministic finite-state transducers. The model of parallel computation is a one-way linear array of identical finite-state machines. The data movement in the array is one-way, from left to right. For inputs of length n, the array uses n nodes, but the design of the node (finite-state machine) is independent of n. Our algorithms can actually produce a parse, i.e., a sequence of rules (moves) that generates (accepts) an input, in linear time. When only a no/yes answer is required, the parsing problem becomes a recognition problem. The best serial (RAM) algorithms for the corresponding recognition problems take O(n2/log2n) time and space. Previous parallel algorithms for the recognition problems run in linear time on a one-way linear array of finite-state machines.
Publication Year: 1989
Publication Date: 1989-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 2
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