STATE COMPLEXITY AND APPROXIMATION

被引:2
作者
Gao, Yuan [1 ]
Yu, Sheng [1 ]
机构
[1] Univ Western Ontario, Dept Comp Sci, London, ON, Canada
关键词
Regular languages; state complexity; finite automata; undecidability; approximation; combined operations; 2 COMBINED OPERATIONS; TRANSITION COMPLEXITY; CATENATION; BOUNDS;
D O I
10.1142/S0129054112400461
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We discuss a number of essential questions concerning the state complexity research. The questions include why many basic problems were not studied earlier, whether there is a general algorithm for state complexity of combined operations, and whether there is a new and effective approach in this area of research. The concept of state complexity approximation is also discussed. We show that state complexity approximation can be used to obtain good results when the exact state complexities are difficult to find and when the exact state complexities are too complex to comprehend. We also list a number of questions for future research in this area.
引用
收藏
页码:1085 / 1098
页数:14
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