On partially blind multihead finite automata

被引:7
作者
Lbarra, OH [1 ]
Ravikumar, B
机构
[1] Univ Calif Santa Barbara, Dept Comp Sci, Santa Barbara, CA 93106 USA
[2] Sonoma State Univ, Dept Comp Sci, Rohnert Pk, CA 94928 USA
基金
美国国家科学基金会;
关键词
blind head; finite automaton; probabilistic automaton; counter machine; semilinear language;
D O I
10.1016/j.tcs.2006.01.030
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
This work is concerned with 1-way multihead finite automata (FA), both deterministic, and nondeterministic, in which the symbol under only one head controls its move. We call such a FA a partially blind multihead FA. We show some results regarding the decision problems and closure properties of blind multihead DFA and NFA. We also compare these devices with 1-way NFA augmented by reversal bounded counters. Finally, we also present some results regarding the simulation of a partially blind DFA and NFA by a probabilistic finite automaton. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:190 / 199
页数:10
相关论文
共 18 条
[1]  
ALUR R, 1998, 6 ACM S FDN SOFTW EN, P175
[2]  
[Anonymous], 1981, LECT NOTES COMPUTER
[3]   REVERSAL-BOUNDED MULTIPUSHDOWN MACHINES [J].
BAKER, BS ;
BOOK, RV .
JOURNAL OF COMPUTER AND SYSTEM SCIENCES, 1974, 8 (03) :315-332
[4]   ON A COMPLEXITY HIERARCHY BETWEEN L AND NL [J].
CHO, S ;
HUYNH, DT .
INFORMATION PROCESSING LETTERS, 1988, 29 (04) :177-182
[5]  
Dang Z, 2004, LECT NOTES COMPUT SC, V3328, P198
[6]  
DWORK C, 1989, P 30 ANN S FOUND COM, P480
[7]  
Greibach S. A., 1978, Theoretical Computer Science, V7, P311, DOI 10.1016/0304-3975(78)90020-8
[8]  
Greibach S. A., 1976, Theoretical Computer Science, V1, P269, DOI 10.1016/0304-3975(76)90072-4
[9]   MULTI-TAPE AND MULTI-HEAD PUSHDOWN AUTOMATA [J].
HARRISON, MA ;
IBARRA, OH .
INFORMATION AND CONTROL, 1968, 13 (05) :433-&
[10]  
Hopcroft J., 1979, INTRO AUTOMATA FORMA