Faculty Profiles - OHIRA Masao

Misc - OHIRA Masao

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Analysis of Network in an OSS Community with Multiple Sub Communities

伊原彰紀, 大平雅雄, 松本真佑, 亀井靖高, 松本健一

情報処理学会シンポジウムシリーズ(CD-ROM) 2008 ( 1 ) 2008

OSSプロジェクトにおける障害に関する情報共有の分析

伊原彰紀, 亀井靖高, 大平雅雄, まつ本真佑, 松本健一

情報処理学会関西支部支部大会講演論文集 2008 2008

Inter-Community Betweenness: Metrics for Measuring Coordination Quality in OSS Development

前島弘敬, 柗本真佑, 亀井靖高, 柿元健, 大西洋司, 大平雅雄, 松本健一

ワークショップ2007 （GN Workshop 2007) 論文集 2007 71 - 76 2007.11

A Method for Activity Prediction using Cluster Analysis on Email Threads

大蔵君治, 大西洋司, 川口真司, 大平雅雄, 飯田元, 松本健一

電子情報通信学会技術研究報告 ( The Institute of Electronics, Information and Communication Engineers ) 107 ( 275(SS2007 30-37) ) 41 - 46 2007.10

In open-source software (OSS) development, activity is one of important factors which affect quality of software products. Various development tools' logs have been used to analyze certain OSS projects because of the lack of development documents in OSS projects. However, it is difficult to analyze OSS projects in common since tools used in software development vary from project to project. In this paper, we focus on mailing lists (MLs) that are used in most OSS projects, and propose a method for activity prediction based on in co-occurrence of developers in MLs. From the result of our experiment, we confirmed that co-occurrence of developers affected the activity in OSS projects.

Analysis of Coordinators in an OSS Community with Multiple Sub Communities

伊原彰紀, 前島弘敬, まつ本真佑, 亀井靖高, 大平雅雄, 松本健一

情報処理学会シンポジウム論文集 2007 ( 11 ) 2007

OSSコミュニティにおける共同作業プロセス理解のための中心性分析

大平雅雄

情報処理学会シンポジウムグループウェアとネットワークサービスワークショップ2007論文集, Nov. 2007 7 - 12 2007

Effects of Visualizing Coauthor Relationships as a Tree-Map in Face-to-face Communication

栗山進, 大平雅雄, 湯浅直弘, 松本健一

情報処理学会研究報告 ( Information Processing Society of Japan (IPSJ) ) 2006 ( 105(HI-120) ) 29 - 35 2006.09

We have been developing SCACS (a Social Context-Aware Communication System) that supports informal communications among researchers in academic conferences and workshops through visualizing coauthor relationships as a Tree-Map weighted by number of coauthored papers. This paper reports the results of a case study to investigate effects of visualizing coauthor relationships as a Tree-Map. 15 researchers participated in the case study and talked each other with handouts that imitate the SCACS's visualization. From the results of the case study, we found that the participants used visualized coauthor relationships for presuming social information of conversational partner, such as sociality, affiliation, official position and so forth.

産官学連携における参加者の興味についての対応分析

大杉直樹, 大平雅雄, 松村知子, 森崎修司, 玉田春昭, 松本健一

情報科学技術フォーラム ( Forum on Information Technology ) FIT 2006 313 - 315 2006.08

ソフトウェア要求抽出における異分野コラボレーションの分析

田中秀一郎, 大平雅雄, 松本健一

情報科学技術フォーラム ( Forum on Information Technology ) FIT 2006 ( 3 ) 473 - 476 2006.08

Social Context‐aware Information System:初対面時の「きまずさ」解消を目的とした実空間ソーシャルネットワーキングシステム

栗山進, 大平雅雄, 井垣宏, 大杉直樹, 松本健一

情報処理学会シンポジウム論文集 2006 ( 4 ) 195 - 196 2006.03

Second international workshop on supporting knowledge collaboration in software development (KCSD2006)

Yunwen Ye, Masao Ohira

ASE 2006: 21ST IEEE INTERNATIONAL CONFERENCE ON AUTOMATED SOFTWARE ENGINEERING, PROCEEDINGS ( IEEE COMPUTER SOC ) 376 - 376 2006

DOI

Applying an Intercultural Collaboration Support Tool to Software Requirements Elicitation Meetings

つじ明憲, 小山裕典, 大平雅雄, 松本健一

電子情報通信学会技術研究報告 ( The Institute of Electronics, Information and Communication Engineers ) 105 ( 490(SS2005 55-62) ) 31 - 36 2005.12

One of the biggest challenges in requirements engineering is to resolve the issue that customers cannot explicitly represent their ambiguous and implicit requirements to analysts and then such the requirements would remain during subsequence phases. This paper describes and discusses the experiments in which we applied an intercultural collaboration support tool called EVIDII (an Environment for VIsualizing Differences of Individual Impressions) to requirements elicitation meetings. From the results of the experiments, we have found that the requirements elicitation process in meetings with EVIDII could be improved because of augmented completeness of checking explicit requirements and increased opportunities of finding implicit requirements, comparing with traditional requirements elicitation meetings.

A Self-Motivation Measurement Method Focusing on the Learner's Emotional Aspect in a Programming Class

HAMADA Minako, TAMADA Haruaki, NAKAMICHI Noboru, TAKEMURA Yasuhiro, OHIRA Masao, BARKER Michael

IEICE technical report. Education technology ( The Institute of Electronics, Information and Communication Engineers ) 105 ( 298 ) 29 - 34 2005.09

In a practical training course of programming, teachers need students to understand training contents within a limited semester. Because students need not only to take a training course but to learn it by themselves in order to better understand programming, teachers have to lead self-motivated leaning of students by changing the level and pace of the training. However, it is difficult to grasp students' self-motivation objectively. The goal of this study is to construct a method for measuring students' self-motivation. Focusing on emotional aspects of students in a programming training course, we have found that the correlation between the intensity of the four kinds of emotions and the possibility of self-motivated learning occurred.

An Information Exploration Model based on Eye Movements during Browsing Web Pages

Toda Koji, Nakamichi Noboru, Shima Kazuyuki, Ohira Masao, Sakai Makoto, Matsumoto Kenichi

情報処理学会研究報告. HI, ヒューマンインタフェース研究会報告 ( Information Processing Society of Japan (IPSJ) ) 2005 ( 52 ) 35 - 42 2005.05

Although the data such as visit time and mouse movements has been used for evaluating web usability, these data is difficult to be used for detecting a specific location where usability problems exist. In this paper, we have conducted an experiment to study users' information exploration activities during browsing web pages by measuring eye movements. From the results of data analysis, we have found that if users' eye fixation time was short, users were exploring a location of information. And we have found that if users' eye fixation time was long, users were judging whether the information users found was the information they wanted. Using such the results, we propose an information exploration model based on eye movements during browsing web pages. We expect that the proposed model enables to detect a specific location including web usability problems.

Analysis of program comprehension that has effects on the code review achievement

栗山進, 大平雅雄, 門田暁人, 松本健一

電子情報通信学会技術研究報告 ( The Institute of Electronics, Information and Communication Engineers ) 104 ( 571(SS2004 50-55) ) 17 - 22 2005.01

The goal of this study is to analyze the relationship between the level of program comprehension and the bug detection rate in a code review process. We examined the reviewer's comprehension level of a program after the review process was held by the reviewer. As a results of examinations, we have found that the bug detection rate correlated with the comprehension level of data structure and its manipulation while it did not correlated with the comprehension level of logic and interface. We also found the program comprehension was a necessary condition for detecting bugs.

Empirical Project Monitor: A System that Automatically Collects and Analyzes Quantitative Development Data toward Process Improvement

大平雅雄, 横森励士, 阪井誠, 松本健一, 井上克郎, 鳥居宏次

電子情報通信学会技術研究報告 ( The Institute of Electronics, Information and Communication Engineers ) 103 ( 708(SS2003 46-50) ) 13 - 18 2004.03

In recent years, improvement of software process is increasingly gaining attention. However, its practice is not easy because of difficulties of data collection and utilization of collected data. In this paper, we introduce Empirical Project Monitor (EPM), which is an automatic data collection and analysis system to support software process improvement. Collecting data from common tools used in software development, EPM analyzes the data automatically and provides graphical results. EPM assists and facilitates coherent data collection which is a difficult task in practice.

対面異文化間コミュニケーションにおける相互理解構築とアイデア創発の支援に関する研究(知識情報インフラストラクチャ)(<特集>人工知能分野における博士論文)

大平雅雄, 奈良先端科学技術大学院大学情報科学研究科情報処理学専攻:(現)奈良先端科学技術大学院大学産官学

人工知能学会誌 = Journal of Japanese Society for Artificial Intelligence 19 ( 1 ) 99 - 99 2004.01

本論文は,異文化に属する者どうしのグループミーティングにおける協調作業を,対面コミュニケーションにおける相互理解の構築と,異文化間コミュニケーションによるアイディア創発という同時進行する二つのプロセスとして捉え,それぞれのプロセスを支援するための理論的枠組みの構築と,二つのプロセスを統合的に支援する計算機システムの設計について論じるものである.本論文は8章からなる.第1章の序論に続き,第2章では,協調作業における対面異文化間コミュニケーションの目的と必要性を述べるとともに,相互理解の構築とアイディア創発を円滑に行うための課題を述べる.第3章では,(1)ブレークダウンに着目した,対面コミュニケーションにおける知識共有と相互理解構築プロセスのモデル,(2)境界オブジェクトの役割に着目した,異文化間コミュニケーションをアイディア創発手段とするための方法論,をそれぞれ構築し理論的枠組みとする.第4章では,二つの理論的枠組みを統合するための手法として「アソシエーション」の利用を提案する.第5章では,構築したEVIDII(an Environment for VIsualizing Differences of Individual Impressions)システムの詳細,第6章では,利用観察実験とプロトコル分析の結果からEVIDIIの有用性を明らかにする.第7章では,分析結果に基づき対面異文化間コミュニケーション支援環境について考察するとともに,今後の課題と展望について述べる.最後に第8章において,本論文を総括する.

Communication Errors as Opportunities for Shared Understanding in Intercultural Collaboration

安岡美佳, 中小路久美代, 大平雅雄, 石田亨, 野村早恵子

情報処理学会研究報告ヒューマンコンピュータインタラクション（HCI） 2003 ( 47 ) 47 - 54 2003.05

本稿は，自動翻訳機能を備えた電子掲示板を介し，異文化間ソフトウェア開発プロジェクトでおこなわれたコミュニケーションデータを分析した成果を報告するものである．異文化協調作業でコミュニケーションエラーがどのように認識され，どのように修復されたかを見つけ出し，異文化協調作業におけるコミュニケーションのモデルを構築することを目的としている．コミュニケーションデータを用いた事例の分析をおこなった結果，コミュニケーションエラーの発生から，エラーの認識，エラーの修復，そして共有理解へつながる共通のコミュニケーションの流れが観察された．このモデルにおいて，コミュニケーションエラーの認識と修復の過程は，共有理解を構築するための要件であることが確認された．This paper suggests a model for intercultural communication that focuses on clarifying how the communication errors are recognized, and then repaired, by analyzing communication data collected in the Intercultural Collaboration Experiment (ICE). In ICE, participants collaborated via Bulletin Board System equipped with the machine translation mechanism. We have observed cases where communication errors ended up with shared understanding among participants though error realizations and repairs. This shows that the process of realization and repairs are one of the requirements for shared understanding.

Horizontal vs. Vertical Shared Information Space: A Study of Influences on Communications during Using the EVIDII System

大平雅雄, 中小路久美代, 松下光範, 大和田龍夫, 桑原和宏

情報処理学会研究報告ヒューマンコンピュータインタラクション（HCI） 2002 ( 76 ) 47 - 54 2002.08

我々はこれまで，画像に対する個々人のイメージの差異を可視化することによって少人数での対面コミュニケーションにおける相互理解を支援するEVIDIIシステムを開発してきた．本論文では，システム使用時に共有情報空間として用いるデバイスがコミュニケーションに与える影響を，垂直設置型ディスプレイと水平設置囲み型ディスプレイとの比較対照実験から考察する．水平型共有情報空間を使用した場合には，指示語やジェスチャを使いながらコミュニケーションを巧みに調整し議論を行っている様子が観察された．一方垂直型では，発言の重複が生じるという状況が多発したが，デザインラショナルの分野において重要とされるarticulation（言葉の明示的な発言）を水平型よりも多く行っている様子が観察された．We have developed the EVIDII system that supports mutual understanding among people in face-to-face small group meetings through visualizing differences of individual impressions of images. This paper describes a comparative study that we have conducted to investigate effects of properties of devices used as shared information space have on communications during the use of EVIDII. In case of using a horizontal shared information space, users were able to communicate each other naturally using demonstrative words such as "this" and "that", and gestures. In case of using a vertical shared information space, users tend to begin to speak simultaneously but tend to articulate what they thought.

INTERACT2001 Doctoral Consortium参加報告

大平雅雄

情報処理学会研究報告. CVIM, [コンピュータビジョンとイメージメディア] ( 一般社団法人情報処理学会 ) 2001 ( 87 ) ii 2001.09

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