On behaviors of an Abstract Chemistiry

我的主要研究兴趣是发现自然界中“无中生有”的等级结构的计算原理，如生命系统、自组织等，其中最具挑战性的课题之一是发现生命系统的计算原理。为了寻求原理，我们使用人工化学作为“试验床”。“人工化学是复杂系统和人工生命的一个新的研究领域。我们提出并研究了一个抽象化学系统--多集抽象重写系统（ABSTRewritingSystemonMultiSets，ARMS）.在该系统中，分子对应于“符号”，它们根据预先定义的反应规则相互反应。我们证实它可以模拟真实的生物化学反应中的现象，如“Belouzov-Zhabotinsky反应（BZ-反应）”（BZ-反应是一种自发的化学振荡，被认为是生物化学体系的基本机理之一）。我们还在系统内部引入了“膜结构”，发现出现了类似原始细胞的人工细胞。该模型与分子计算的一个计算模型P系统密切相关。并将该模型应用于一个生态系统的分析。

My main research interest is to discover computational principle of emerging hierarchical structure "out of nothing" in nature such as living systems, self-organization and so on. One of the most challenging theme is to discover the computational principle of living systems. To seek the principle we use Artificial Chemistries as a "test bed." Artificial Chemistry is a new research field of Complex System and Artificial life. We have proposed and investigated an abstract chemical system, Abstract Rewriting System on MultiSets (ARMS). In the system, molecules correspond to "symbols" and they react to each other according to reaction rules which are defined in advance. We confirmed that it can simulate phenomenon that we will find in real bio-chemical reactions such as "Belouzov-Zhabotinsky reaction (BZ-reaction)" (BZ-reaction is spontaneous chemical oscillation, which is considered as one of the basic mechanisms in bio-chemical system). We also introduced "membrane structure" inside the system, and found that proto-cell like artiricial cells emerge. This model is closely related to a computiong model of the molecular computing, P Systems. Furtermore, we used this model to analyze an ecological system.