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Our research group at Nagoya Institute of Technology is developing “MMDAgent” as a voice interaction toolkit. Using MMDAgent, system developers can create various speech dialogue contents. When developers create voice interaction contents, it is important to consider user needs. Therefore, an approach is necessary to elicit preference information of the user. In this paper, we propose a method to...
Recorded provenance facilitates reproducible science. Provenance metadata can help determine how data were possibly transformed, processed, and derived from original sources. While provenance is crucial for verification and validation, there remains the issue of the granularity — detail at which provenance data must be provided to a user, especially for conducting reproducible science. When data are...
Modern OSS projects have adopted Git to manage versions of their source code and GitHub for hosting their Git repositories. GitHub provides a characteristic feature notably pull request, and many projects adopt pull-based development model by using it. This development model offers an opportunity to review the source code before merging it into the mainstream. Getting acceptance of the pull request,...
We improve the best previously-known lower bound on the size of largest homometric sets in sparse diameter-two graphs. Along with the proof, we provide a method for constructing the desired homometric sets. We also study outerplanar graphs and show how to construct homometric sets in a given outerplanar graph of the size at least clogn, where n is the number of vertices in the graph, and c a positive...
Specifying and analysing non-functional properties (NFPs) is essential for driving architectural decisions and validating composite service designs. Only where NFPs have been specified can we choose between services with similar functionality that would better satisfy our non-functional requirements. Meanwhile, incorporating provenance functionality into service-oriented systems' design is becoming...
This paper proposes a concept for refactoring an edit history of source code and a technique for its automation. The aim of our history refactoring is to improve the clarity and usefulness of the history without changing its overall effect. We have defined primitive history refactorings including their preconditions and procedures, and large refactorings composed of these primitives. Moreover, we...
We mined the issue database of GNOME to assess how issues are handled. How many issues are submitted and resolved? Does the backlog grow or decrease? How fast are issues resolved? Does issue resolution speed increase or decrease over time? In which subproject are issues handled most efficiently? To answer such questions, we apply several visualization and quantification instruments to the raw issue...
It has been previously argued that science and engineering undergraduate students can benefit greatly from learning the history of their discipline. In order to successfully enhance learning by introducing history into undergraduate curriculum, it would be desirable to assess what the current educational uses of history are and to understand the needs and perceptions of teachers. Nevertheless, to...
Automated techniques to optimize feature descriptor weights and select optimum feature descriptor subset are desirable as a way to enhance the performance of content based image retrieval system. In our system, all the MPEG-7 image feature descriptors including color descriptors, texture descriptors and shape descriptors are used to represent low-level image features. We use a real coded chromosome...
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