Wakayama University Academic Repository
Not a member yet
6193 research outputs found
Sort by
ソウカン カンケイ ノ コウリツテキ ナ カイシャク オ シエン スル タメ ノ チエン ソウカン ブンセキ シュホウ ノ カクチョウ : プロジェクト カンリ エノ カツヨウ ニ ムケタ テキヨウ ジッケン
No full text多様化するソフトウェア開発プロジェクトを効果的に管理するためには，プロジェクト固有のソフトウェア進化に関する知識が必要となる．遅延相関分析は，時間的な遅延を挟んで現れるメトリクス間の相関関係を求めることができる，探索的な知識抽出アプローチであり，オープンソースソフトウェアのリポジトリに対する適用が報告されている．しかしながら，プロジェクト管理への活用のためには，大量に抽出される相関関係を精査し，意味のある知見を抽出するコストが課題となる．本稿では，遅延相関の各係数に注目したヒューリスティックスによる絞り込みと，元の時系列データにおいてよくあてはまる区間の特定および可視化手法を提案する．また，オープンソースソフトウェアおよび組込み製品ソフトウェアへ適用することで，提案手法が遅延相関分析を用いた効率的なリポジトリ分析に寄与することを示した．Understanding project-specific software evolution is essential for managing various software development projects. An exploratory approach to open source software (OSS) repository analysis using time-delayed correlation analysis (DCA), an extension of correlation analysis that considers a time delay between any pair of metrics, is reported previously. In this paper, we propose heuristic-based filtering using the coefficients of DCA and visualization of time-series metric values with the most explainable periods for effective and efficient inspection of DCA result. In addition, we conduct case studies using an OSS repository and an industrial embedded product software repository. As a result, we show that the proposed approach contributes to effective repository analysis using DCA
Twitter ジョウ デ タスウ ノ テイセイ ジョウホウ ガ ハッシン サレル リュウゲン ノ トクチョウ ブンセキ
No full textマイクロブログサービスの1つであるTwitterでは，正しい情報だけでなく，流言を含む情報も発信されることがある．流言には社会的混乱を引き起こすような内容のものがあり，流言が広がりにくい仕組みを作る必要がある．そこで本研究では，真偽が不明，または真偽が人々に疑われている情報を流言と定義し，Twitter上で多数の訂正情報が発信される流言の特徴を分析する．分析の結果，Twitter上で多数の訂正情報が発信される流言の特徴として以下の3点を明らかにした．(1)訂正ツイートの多さは，流言ツイートの多さを必ずしも反映しない．(2)流言ツイートと訂正ツイートのバーストのタイミングには，差がほとんどみられず，両者ともに短期的に収束する傾向がある．(3)今回分析した8つの流言については，いずれも流言ツイートの発生は単発的かつ短期収束傾向がある．一方，訂正ツイートの推移に関しては，その対象となる流言ツイートのTwitter上での拡散数により，傾向が変わる可能性がある．Twitter, a microblogging service, transmits not only correct information, but also sometimes transmits information that contains rumors. Some of these rumors may cause social confusion. Hence, it is necessary that a system is created to prevent the spread of such rumors. In this study, the meaning of “rumor” is defined as information of which truth or falsity is unknown or suspicious. Further, the characteristics of the “rumors” being transmitted extensively on Twitter are analyzed. The results reveal three features of such “rumors” in which a large amount of correction information is transmitted on Twitter: (1) The number of correction tweets does not necessarily reflect the number of rumor tweets. (2) There is almost no difference in the burst timing between the rumor tweet and the correction tweet, and both tend to converge in the short term. (3) In all of the eight rumors analyzed in this study, the occurrence of the rumor tweet tended to be one-shot and converged in a short period of time. On the other hand, regarding the trend of the correction tweet, the trend can change depending on the number of the rumor tweet spread on Twitter
Methodological Analysis and Consideration on Practical Research in Special Needs Education Through an Analysis of Research Papers Published in the Japanese Journal of Special Education
No full textThe purpose of this study was to analyze “practical research” published in “the Japanese Journal of Special Education,” and to consider strategies to compile various practices in various fields including educational environments into a paper not only as practical report but also as practical research supported by theoretical considerations based on hypotheses and evidence, looking back on the past and aiming at new deepening of the “practical research” in the “Japanese Journal of Special Education.” Based on the analyses, we summarized and discussed the practical research as follows ： an “experimental” approach using the single subject design based on methodologies which enable to focus on variables and show certain quantitative evidence in practices, and a “naturalistic” approach in which various and multi-layered factors existing in daily events are explained by descriptive data
Lesson Practice of Disaster Prevention Learning Using a Postcard-Newspaper
Get PDF最近、異常気象や地震など人々に強く影響をおよぼす自然現象が多く起きている。今回、防災意識を向上させ、災害を減らすことを目的に「はがき新聞」を用いた防災学習を試みた。この授業実践により、災害を身近なこととしてとらえることができ、防災対応力を高められることがわかった。We performed the education of disaster prevention for abnormal weather and earthquake writing newspaper of postcard size. From this practical education, it was clear that junior high school students could easily recognize disaster in our life and acquire strong consciousness for disaster prevention
The Landscape of Wooburn and its Heritage
Get PDFThe term “Ferme Ornée,” meaning an ornamental farm, is coined by a garden theorist Stephen Switzer, who defines the key aspect of this style of garden design, drawing on Horace, as utile dulti, or mingling of pleasure with productivity. Itʼs a space of bucolic ideal influenced by a reinterpretation of the classéical world of Georgics by another Roman poet Virgil. The first and a prototypal “Ferme Ornée” is Wooburn Farm in Surrey which was laid out by Philip Southcote in 1734-35, and then not a few “Ferme Ornée” had appeared from the mid-18th Century. But the agricultural revolution and the French Revolution uncovered their fictionality, and they gradually declined and began to be replaced by Model Farms. Although in the 1790s Wooburn was transferred to a practical scientific farm, it has established no small influence on modern gardens and farms. This paper discusses first the details of Southcoteʼs Wooburn, and then, focusing on the relation between pleasure and productivity, examines the heritage of this “Ferme Ornée” to later periods
