Joho Chishiki Gakkaishi
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Volume 24 , Issue 3
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Special Issue : Scientific Data and Mashup Technologies
  • [in Japanese]
    Volume 24 (2014) Issue 3 Pages 253
    Released: December 31, 2014
    JOURNALS FREE ACCESS
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  • Hiroko KINUTANI, Toshiyuki SHIMIZU, Masatoshi YOSHIKAWA, Masaru KITSUR ...
    Volume 24 (2014) Issue 3 Pages 254-274
    Released: December 31, 2014
    JOURNALS FREE ACCESS
     Our project, the DIAS (Data Integration and Analysis System) started in 2006, has a purpose of constructing data infrastructure that can integrate earth observation data, numerical model outputs, and socio-economic data effectively. From October 2010, we have released research data and research result data in the DIAS. The 4-years increased amount of released data have improved the environment that we provide research data to the people not related to our project. Limited term project is difficult to continue to release research data in a sustained manner. It is necessary to establish a management system for long-term research data in anticipation that the DIAS is transferred to the long-term operational system in the future. In this paper, we describe the current status of the DIAS data release, and discuss the issues for sustainable maintenance of data and metadata in the DIAS.
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  • Ken T. Murata, Hidenobu Watanabe, Kentaro Ukawa, Kazuya Muranaga, Yuta ...
    Volume 24 (2014) Issue 3 Pages 275-290
    Released: December 31, 2014
    JOURNALS FREE ACCESS
     In many scientific fields, most data are digitized and handled on computers and networks. The data files are getting larger in size and numbers. Science clouds, which are equipped with both flexibility and specialty applicable for countless scientific studies, are believed to play important roles as an infrastructure of big-data sciences and inter-disciplinary studies. The NICT Science Cloud is designed to work with functions of data crawling and transfer, data preservation and management, and data processing and visualization. We have developed applications, tools, systems and services designed for these three functions (especially for Earth and space environmental sciences) installed on the NICT Science Cloud. By applying these functions to each science project, researchers are able to advance their studies. In this paper, we first introduce the NICT Science Cloud. We next report our 2-years operations of the cloud system based on several fact data. Finally, results of research works using the cloud system are discussed with focusing on how we effectively take advantage of a cloud system on research works in various fields.
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  • Hidenobu WATANABE, Sen UENO, Ken. T. MURATA
    Volume 24 (2014) Issue 3 Pages 291-296
    Released: December 31, 2014
    JOURNALS FREE ACCESS
     A web application is important technology as a user interface of open scientific data, but it is required to develop without vulnerability. NICT is also required to a framework which enables to develop a secure webapplication even if a client does not have enough development skills or specialized knowledge. This paper reports about the proposed method for cooperation with as ecure webapplication development to a client in general competitive bidding.
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  • Ken T. Murata, Kentaro Ukawa, Kazuya Muranaga, Yutaka Suzuki, Hidenobu ...
    Volume 24 (2014) Issue 3 Pages 297-320
    Released: December 31, 2014
    JOURNALS FREE ACCESS
     In 2008, the International Council for Science (ICSU) established the World Data System (WDS) to ensure the long-term stewardship and provision of quality-assessed data and data services to the international science community and other stakeholders. One of the objectives of the WDS is to support and make progress of interdisciplinary and cross-over studies data analyses covering a variety of research fields. In 2010, the NICT Science Cloud, which is one of the projects of the National Institute of Information and Communications Technology (NICT), has initiated a sub-project to realize the WDS's concept of the interdisciplinary data activity. In this paper, we demonstrate potential capability of our Web application for interdisciplinary data analysis, which is now operated on the NICT Science Cloud. In the initial stage of the system development, we constructed a basic concept and an initial design of the Web application, taking into account our long-term experiences in data-oriented activities under the WDC (World Data Center) system of the ICSU, which was an ICSU's data program operated from 1957 to 2008, preceded the WDS. Based on our design, we have implemented the Web application for data plots on the basis of the HTML5 and the Ajax technologies. Data plots can be previewed on the Web application with higher usability and better handleability than those of traditional data-plot tools developed for multiple-datasets. We finally discuss feasibility and potential usefulness of the Web application for future interdisciplinary data–analysis activities of the WDS.
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