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An identifier is an important key in mapping program elements onto domain knowledge for the purpose of program comprehension. Therefore, if identifiers in a program have inappropriate names, developers can waste a lot of time trying to understand the program. This paper proposes a method for extracting and gathering verb-object (V-O) relations, as good examples of naming, from source code written...
Software component retrieval systems are widely used to retrieve reusable software components. This paper proposes recommendation system integrated into software component retrieval system based on collaborative filtering. Our system uses browsing history to recommend relevant components to users. We also conducted a case study using programming tasks and found that our system enables users to efficiently...
Visualizing an execution trace of an object-oriented system as sequence diagrams is effective to understand the behavior of the system. To support developers to understand concrete interaction among classes, our tool named OGAN extracts sequence diagrams representing interaction scenarios for a pair of classes specified by a user. OGAN classifies objects into groups based on their neighbor classes...
A coding pattern is a frequent sequence of method calls and control statements to implement a particular behavior. Coding patterns include copy-and-pasted code, crosscutting concerns and implementation idioms. Duplicated code fragments and crosscutting concerns that spread across modules are problematic in software maintenance. In this paper, we propose a sequential pattern mining approach to capture...
A software component graph, where a node represents a component and an edge represents a use-relation between components, is widely used for analysis methods of software engineering. It is said that a graph is characterized by its degree distribution. In this paper, we investigate software component graphs composed of Java classes, to seek whether the degree distribution follows so-called the power-law,...
Alias analysis is a method for extracting sets of expressions which may possibly refer to the same memory locations during program execution. Although many researchers have already proposed analysis methods for the purpose of program optimization, difficulties still remain in applying such methods to practical software engineering tools in the sense of precision, extensibility and scalability. Focusing...
Generally, code clones are regarded as one of the factors that make software maintenance more difficult. A code clone is a set of source code fragments identical or similar to each other from the viewpoint of software maintainability, code clones should be removed. However, sometimes there are dependency relations among each of which belong to the different code clone, and it is advisable to refactor...
Function point analysis (FPA) was proposed to help measure the functionality of software systems. It is used to estimate the effort required for the software development. However, it has been reported that since function point measurement involves judgment on the part of the measurer, differences for the same product may occur even in the same organization. Also, if an organization tries to introduce...
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