• International Journal of Computer Science & Network Security
• /
• v.23 no.6
• /
• pp.147-154
• /
• 2023

Network intrusion refers to any unauthorized penetration or activity on a computer network. This upsets the confidentiality, integrity, and availability of the network system. One of the major threats to any system's availability is a Denial-of-Service (DoS) attack, which is intended to deny a legitimate user access to resources. Therefore, due to the complexity of DoS attacks, it is increasingly important to abstract and describe these attacks in a way that will be effectively detected. The automaton theory is used in this paper to implement a SYN Flood detection system based on Time-Dependent Finite Automata (TDFA).

• Journal of applied mathematics & informatics
• /
• v.42 no.3
• /
• pp.483-497
• /
• 2024

Isometric array grammar is one of the simplest model to generate picture languages, since both sides of its production rule have the same shape. In this paper, we have introduced isometric fuzzy regular array grammars to generate isometric fuzzy regular array languages and discussed its closure properties. Also, the relation between isometric fuzzy regular array grammar and boustrophedon fuzzy finite automata has been discussed. Moreover, we study the relation between two dimensional fuzzy regular grammars with returning fuzzy finite automata and boustrophedon fuzzy finite automata. Further, the hierarchy results of these three classes of languages have been discussed.

• Journal of the Chungcheong Mathematical Society
• /
• v.29 no.4
• /
• pp.553-563
• /
• 2016

We characterize periodicities of some characteristic matrices of cellular automata congured with rule 60 and intermediate boundary condition.

• Journal of the Chungcheong Mathematical Society
• /
• v.28 no.4
• /
• pp.545-551
• /
• 2015

We investigate periodicities of characteristic matrices of cellular automata configured with rule 60 and intermediate boundary condition.

• Proceedings of the Korea Society of Design Studies Conference
• /
• 2001.10a
• /
• pp.1.2-1
• /
• 2001

• Journal of the Chungcheong Mathematical Society
• /
• v.27 no.4
• /
• pp.543-551
• /
• 2014

We investigate periodicities of some hybrid cellular automata configured with rule 102 and 60 and null boundary condition.

• Journal of the Chungcheong Mathematical Society
• /
• v.21 no.4
• /
• pp.447-454
• /
• 2008

In this short note, we will point out and modify some logical errors in literatures about the theory of cellular automata.

• 한국ITS학회:학술대회논문집
• /
• 2002.11a
• /
• pp.181-184
• /
• 2002

• Journal of the Chungcheong Mathematical Society
• /
• v.31 no.4
• /
• pp.511-518
• /
• 2018

We investigate periodicities of some hybrid cellular automata configured with rule 60 and 102 and periodic boundary condition.

• Journal of the Chungcheong Mathematical Society
• /
• v.23 no.4
• /
• pp.785-791
• /
• 2010

In this note, we give a characterization of cycle lengths of uniform cellular automata configured with rules 60 or 102.