Improved DFA algorithm based on multi-dimensional finite automata by ONGYang-yang G, IUQin-rang L, ANGZhen-xi Y, HAOXiang-yu S, INGChi-qiang X, IAOHui-juan J, ENGZhi-bin P

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Novel NFA engine construction method of regular expressions by Mao-hua JING, Yi-xian YANG, Tao WANG, Yang XIN

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States constrain-based algorithm for large scale regular expression matching by Wei HE, Yun-fei GUO, Hong-chao HU

“…By analysis of state explosion in deterministic finite automata DFA,a novel algorithm Group²-DFA based on state constrains was proposed to reduce the memory usage.With the state constrains,states in NFA were classified into several groups.Group²-DFA introduces two-level classification and merges NFA and DFA together to a hybrid FA construction.The experiments show that Group²-DFA can reduce memory usage efficiently and keep high throughput with a small increase of memory reading time.With 300 regex rules,Group²-DFA can cut 75% states and achieve 1Gbps throughput.…”
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HybridFA:a memory reduction technique for the AC automata based on statistics by Gang XIONG, Hui-min HE, Jing YU, Yan-bing LIU, Li GUO

“…Despite the fast speed in multiple string matching tasks,the advanced Aho-Corasick(AC) automata wastes storage memory to a great extent.Study indicated that the automata states have specific statistical access characteristics in practice.Accordingly,a series of algorithms based on statistical characteristics for building hybrid finite automata,named HybridFA,are proposed.This work completes partial states of the AC automata according to different features,including access frequency,state hierarchy,and combined characteristics respectively.Experimental results on the real-world datasets like Snort,ClamAV,and URL show that the storage space of HybridAC is reduced to less than 5% of the space cost by the advanced AC automata.Furthermore,HybridFA based on combined characteristics achieves the superior performance on matching speed and robustness comparing to other proposed algorithms.…”
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Forced motion control of a mobile robot by T. Yu. Kim, R. A. Prakapovich, A. A. Lobatiy

“…The method of the theory of optimal control according to the criterion of maximum speed, the wave algorithm for finding the shortest path, the method of finite automata for relay control of the acceleration of movement are used.Results. …”
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