When correcting a fault, adding a new concept or feature, or adapting a system to conform to a new platform, software engineers must first find the relevant parts of the code that correspond to a particular change. Th...When correcting a fault, adding a new concept or feature, or adapting a system to conform to a new platform, software engineers must first find the relevant parts of the code that correspond to a particular change. This is termed as concept or feature location process. Several techniques have been introduced which automate some or all of the process of concept location. Those techniques rely heavily on code comprehension as it is considered a prerequisite when attempting to maintain any software system. It provides a comprehensive overview of large body work which is beneficial to researchers and practitioners. This paper presents an overview of code comprehension categorization and consequence. A systematic literature survey of concept location enhancement techniques is also presented. Moreover, the paper presents an overview of the role of concept location in program comprehension and maintenance and discusses information retrieval techniques to advance concept location.展开更多
空间聚类一直是空间数据挖掘研究的热点之一。现有的聚类方法大都局限于根据空间位置来进行空间聚类的,忽略了空间对象的专题属性,从而导致空间聚类结果有时完全不符合人的空间认知,缺乏合理的解释。为此,综合考虑空间对象的位置和专题...空间聚类一直是空间数据挖掘研究的热点之一。现有的聚类方法大都局限于根据空间位置来进行空间聚类的,忽略了空间对象的专题属性,从而导致空间聚类结果有时完全不符合人的空间认知,缺乏合理的解释。为此,综合考虑空间对象的位置和专题属性,提出了一种基于概念格的空间聚类(Concept Lattices Based SpatialCluster,CLBSC)方法。该方法通过构建多维专题属性的概念格,简化了空间聚类计算。最后,通过两组实验对CLBSC算法进行了验证分析,研究结果表明:所提出的CLBSC算法是一种具有高可靠性和抗噪性的空间聚类算法。展开更多
San Jiao is one of the most controversial concepts in traditional Chinese medicine.With the changes of history,the concept of San Jiao was developed into another concept,"Location San Jiao",on the basis of&q...San Jiao is one of the most controversial concepts in traditional Chinese medicine.With the changes of history,the concept of San Jiao was developed into another concept,"Location San Jiao",on the basis of"Liu Fu San Jiao".However,the appearance of"Location San Jiao"makes the concept of San Jiao more complicated and controversial.This paper will explore from the origin of"Location San Jiao",analyze the origin of its argument,and discuss the problems in it,so as to preliminarily clarify the connotation of San Jiao conception.Through investigation,it is found that the"Location San Jiao"is actually the dissimilation of"Liu Fu San Jiao",and the three parts of"Liu Fu San Jiao"should be divided by functional features rather than anatomical structure.展开更多
文摘When correcting a fault, adding a new concept or feature, or adapting a system to conform to a new platform, software engineers must first find the relevant parts of the code that correspond to a particular change. This is termed as concept or feature location process. Several techniques have been introduced which automate some or all of the process of concept location. Those techniques rely heavily on code comprehension as it is considered a prerequisite when attempting to maintain any software system. It provides a comprehensive overview of large body work which is beneficial to researchers and practitioners. This paper presents an overview of code comprehension categorization and consequence. A systematic literature survey of concept location enhancement techniques is also presented. Moreover, the paper presents an overview of the role of concept location in program comprehension and maintenance and discusses information retrieval techniques to advance concept location.
文摘空间聚类一直是空间数据挖掘研究的热点之一。现有的聚类方法大都局限于根据空间位置来进行空间聚类的,忽略了空间对象的专题属性,从而导致空间聚类结果有时完全不符合人的空间认知,缺乏合理的解释。为此,综合考虑空间对象的位置和专题属性,提出了一种基于概念格的空间聚类(Concept Lattices Based SpatialCluster,CLBSC)方法。该方法通过构建多维专题属性的概念格,简化了空间聚类计算。最后,通过两组实验对CLBSC算法进行了验证分析,研究结果表明:所提出的CLBSC算法是一种具有高可靠性和抗噪性的空间聚类算法。
文摘San Jiao is one of the most controversial concepts in traditional Chinese medicine.With the changes of history,the concept of San Jiao was developed into another concept,"Location San Jiao",on the basis of"Liu Fu San Jiao".However,the appearance of"Location San Jiao"makes the concept of San Jiao more complicated and controversial.This paper will explore from the origin of"Location San Jiao",analyze the origin of its argument,and discuss the problems in it,so as to preliminarily clarify the connotation of San Jiao conception.Through investigation,it is found that the"Location San Jiao"is actually the dissimilation of"Liu Fu San Jiao",and the three parts of"Liu Fu San Jiao"should be divided by functional features rather than anatomical structure.