Information and Communication Sciences

Kawabata Ryo

  (川端 亮)

Profile Information

Affiliation
Associate Professor, Faculty of Science and Technology, Department of Information and Communication Sciences, Sophia University
(Concurrent)Director Education and Research Center for Information Science
Degree
学士(工学)(上智大学)
修士(工学)(上智大学)
博士(工学)(上智大学)

Contact information
r-kawabasophia.ac.jp
Researcher number
30306980
J-GLOBAL ID
200901082077014300
researchmap Member ID
1000260129

(Subject of research)
Study on Domain Analysis and Prototyping


Research Interests

 2

Papers

 77

Misc.

 28
  • YAGAME Tadashi, TAKAHASHI Hiroshi, KAWABATA Ryo, ITOH Kiyoshi
    IEICE technical report, 108(384) 55-60, Nov 20, 2009  
    STD (State Transition Diagram) is used to analyze the system from "state" and "transition" perspective. But, the existent STD can't describe concepts such as states of two or more personnel, synchronization between personnel and time advance which are necessary to model the collaborative systems. This paper proposes Timed STDs with the three concepts, and models the collaborative systems with this diagram. And the authors developed the simulator to show an animation of transition and synchronization and to analyze the performance parameters such as utilization.
  • KATOH Junya, KAWABATA Ryo, ITOH Kiyoshi
    IEICE technical report, 108(384) 19-24, Nov 20, 2009  
    The development of Ontology for Domains and Inter-Domains is considered from the viewpoint of Component and Task. Therefore, the recycling method of described Ontology and the description method of reusable Ontology are examined. The Ontology of Trust of Work is described as an example of the described Ontology. Task Ontology is described along the case grammar and the commitment network. Component Ontology is extracted from Task Ontology, and the relation of the component is described. This description method and the recycling method were implemented with Excel VBA.
  • ITOH Atsushi, KAWABATA Ryo, ITOH Kiyoshi
    IEICE technical report, 107(429) 37-42, Nov, 2008  
    In this study, we propose the system for the allocation of personnel to multiple projects. Execution of multiple projects often requires the same personnel at the same time interval. This can create conflicts, leading to unexpected delays in the completion of the projects. So far, project manager solves such problems by changing parameters such as the number of workers and the deadline. But it needs more cost. Therefore, the system uses the "task fragmentation" method to solve such problems without changing those parameters. This method gives the project manager greater flexibility in allocating the personnel needed for multiple projects. With this method, multiple projects can be run on a desirable schedule and completed before the deadlines.
  • YAGAME Tadashi, KAWABATA Ryo, ITOH Kiyoshi
    IEICE technical report, 108(157) 13-18, Jul 17, 2008  
    The authors translated diagrams for System analysis and design to Prolog formed description, and developed the method for Reuse diagrams. As a method to search reusable diagrams, the authors developed the search method with diagram's structure. The search method is not only adaptable to identical type of diagrams but different type of diagrams. The authors developed conversion method for different type of diagrams.

Books and Other Publications

 8

Presentations

 43

Research Projects

 1

Other

 6
  • Apr, 2007
    機械工学科の情報リテラシ演習,プログラミング演習において,C言語のプログラミング演習を行っている.2007年度から,プログラミングの環境(エディタ,コンパイラ)を,UNIXから,Windows上のものに変更した.この結果,以前と比べ,操作に関する質問が減り,プログラミングそのものについての質問が多くを占めた.多くの学生は,演習問題の数を多くこなしていた.
  • Apr, 2007
    システム情報処理の講義において,グループで演習をさせている.これまでの科目にはない種類の内容であり,議論しながら進めることで,手つかずで停滞することがないようになる.教員とTAも話に加わっている.
  • Apr, 2002
    プログラミングは,記述したことが動きとして見えるのは,画面に見えていることだけだが,実際には目に見えない部分を想像し理解できていないといけない.特に複雑かつ重要なものについて,パワーポイントのアニメーションでこれを説明する教材を作成し,Webからリンクすることで,理解できるまで何度でも確認できるようにしている.
  • Apr, 1998
    毎回,講義の最後にその回で学んだことを理解し定着させることができるよう,同様の問題を多く用意し解かせている.
  • Apr, 1998
    すべての講義・演習のレポートは,電子メールで提出させている.図,表なども活用し,わかりやすいものを作るように指導している.