Travelling Salesman Problem(TSP) is a classical optimization problem and it is one of a class of NP-Problem.The purposes of this work is to apply data mining methodologies to explore the patterns in data generated by ...Travelling Salesman Problem(TSP) is a classical optimization problem and it is one of a class of NP-Problem.The purposes of this work is to apply data mining methodologies to explore the patterns in data generated by an Ant Colony Algorithm(ACA) performing a searching operation and to develop a rule set searcher which approximates the ACA′s searcher.An attribute-oriented induction methodology was used to explore the relationship between an operations′ sequence and its attributes and a set of rules has been developed.At the end of this paper,the experimental results have shown that the proposed approach has good performance with respect to the quality of solution and the speed of computation.展开更多
森林景观是以森林生态系统为主体而构成的景观，其分类是确定景观构成要素及空间分布格局（陆元昌等，2005）。但景观异质性依时间和空间尺度变化而存在差异，在大尺度下空间变异中的“噪声”成分在另一种较小尺度下表现为“结构性”成...森林景观是以森林生态系统为主体而构成的景观，其分类是确定景观构成要素及空间分布格局（陆元昌等，2005）。但景观异质性依时间和空间尺度变化而存在差异，在大尺度下空间变异中的“噪声”成分在另一种较小尺度下表现为“结构性”成分，一个景观单元在小尺度上呈现异质性（邬建国，2000），而在大尺度上可能具有均质性（赵玉涛等，2002）。不同尺度景观要素具有不同程度均质性（Goberna et al．，2007）。森林景观分类是一个基于土地利用类型、植被和环境条件等因素而将其划分为多级分类体系的科学过程（朱耀军等，2011）。因此，森林景观分类具有尺度特性，不同尺度下森林景观分类的构成要素及构成要素等级不同。展开更多
文摘Travelling Salesman Problem(TSP) is a classical optimization problem and it is one of a class of NP-Problem.The purposes of this work is to apply data mining methodologies to explore the patterns in data generated by an Ant Colony Algorithm(ACA) performing a searching operation and to develop a rule set searcher which approximates the ACA′s searcher.An attribute-oriented induction methodology was used to explore the relationship between an operations′ sequence and its attributes and a set of rules has been developed.At the end of this paper,the experimental results have shown that the proposed approach has good performance with respect to the quality of solution and the speed of computation.
文摘森林景观是以森林生态系统为主体而构成的景观，其分类是确定景观构成要素及空间分布格局（陆元昌等，2005）。但景观异质性依时间和空间尺度变化而存在差异，在大尺度下空间变异中的“噪声”成分在另一种较小尺度下表现为“结构性”成分，一个景观单元在小尺度上呈现异质性（邬建国，2000），而在大尺度上可能具有均质性（赵玉涛等，2002）。不同尺度景观要素具有不同程度均质性（Goberna et al．，2007）。森林景观分类是一个基于土地利用类型、植被和环境条件等因素而将其划分为多级分类体系的科学过程（朱耀军等，2011）。因此，森林景观分类具有尺度特性，不同尺度下森林景观分类的构成要素及构成要素等级不同。
