We conceptualize knowledge as an intellectual infrastructure that helps to maximize efficiency from the viewpoint of ecosystems. The knowledge ecosystem includes people and organizations that participate in the production, distribution, and consumption of this knowledge and information, as well as interactions between participants. We built the agent-based computational model of the ecosystem and induced seven key revitalization conditions from the perspective of complexity science and ecosystem management. We analyzed the effects of these conditions on the knowledge ecosystem based by the simulation of the agent-based model. Our results suggest that the proper implementation of seven revitalization conditions, focusing on the recovery of the positive feedback loop in the knowledge ecosystem, is crucial for sustainable development.

抄録全体を表示

Creating new content based on existing original work is becoming popular especially among amateur

. Such new content is called derivative work and can be transformed into the next new derivative work. Such derivative work creation is called “N-th order derivative creation.” Although derivative creation is popular, the reason an individual derivative work was created is not observable. To infer the factors that trigger derivative work creation, we have proposed a model that incorporates three factors: (1) original work's attractiveness, (2) original work's popularity, and (3) derivative work's popularity. Based on this model, in this paper, we describe a public web service for browsing derivation factors called Songrium Derivation Factor Analysis. Our service is implemented by applying our model to original works and derivative works uploaded to a video sharing service. Songrium Derivation Factor Analysis provides various visualization functions: Original Works Map, Derivation Tree, Popularity Influence Transition Graph, Creator Distribution Map, and Creator Profile. By displaying such information when users browse and watch videos, we aim to enable them to find new content and understand the N-th order derivative creation activity at a deeper level.

抄録全体を表示

This study explored the story themes conveyed in temples built in the late Ming and early Qing dynasties (1604-1822 AD). In total, 19 temples and 628 story themes were investigated. Content analysis was adopted to compare and contrast the narrative structure of novels and that of the images decorating the temples; in addition, sample analysis was performed using the narrative structure, story element, main patron deity, and story theme. The results are as follows: 1) Temple primarily selected Romance of the Three Kingdoms for the story theme. 2) Temple selected chapters from Romance of the Three Kingdoms and Apotheosis of Heroes and predominantly adopted the midpoint in Act II that resembling the three-act structure in Western tradition. 3) The background of the main patron deity and the story theme selection for a temple were correlated.

抄録全体を表示

For amateur

, it has been becoming popular to create new content based on existing original work: such new content is called derivative work. We know that derivative creation is popular, but why are individual derivative works created? Although there are several factors that inspire the creation of derivative works, such factors cannot usually be observed on the Web. In this paper, we propose a model for inferring latent factors from sequences of derivative work posting events. We assume a sequence to be a stochastic process incorporating the following three factors: (1) the original work's attractiveness, (2) the original work's popularity, and (3) the derivative work's popularity. To characterize content popularity, we use content ranking data and incorporate rank-biased popularity based on the ' browsing behaviors. Our main contributions are three-fold. First, to the best of our knowledge, this is the first study modeling derivative creation activity. Second, by using real-world datasets of music-related derivative work creation, we conducted quantitative experiments and showed the effectiveness of adopting all three factors to model derivative creation activity and considering ' browsing behaviors in terms of the negative logarithm of the likelihood for test data. Third, we carried out qualitative experiments and showed that our model is useful in analyzing following aspects: (1) derivative creation activity in terms of category characteristics, (2) temporal development of factors that trigger derivative work posting events, (3) creator characteristics, (4) N-th order derivative creation process, and (5) original work ranking.

抄録全体を表示

 The objective of this study was to evaluate the efficacy of the Integrating the Healthcare Enterprise (IHE) Echocardiography profile in an environment that included legacy information systems. For this study, we developed an Ultrasound Image and Report Management System that was capable of supporting the IHE echocardiography profile. We then implemented this system at the real clinical environment and integrated it with the existing legacy hospital information system, department system, and picture archive and communication system (PACS). A gateway interface was used to convert the proprietary protocol and data from the legacy systems to support the standard HL7 data format and DICOM connectivity used in newer systems. After a year of operation, we evaluated the efficacy of IHE connectivity by collecting questionnaires and performing interviews to compare system performance before and after the integration. The assessment showed that IHE connectivity provided greater accuracy for measurement data as well as for patient and examination information on the report. The conclusion was that IHE connectivity is effective in environments that mix new standards-based systems with existing legacy information systems.

抄録全体を表示

本研究は,大阪市北区扇町周辺のクリエイター及び関連企業のネットワークを,「バズbuzz」と紐帯の強さの観点から検討することを目的として行った.クリエイターは,案件ごとに制作プロセス内の位置や外注先を柔軟に変えている.彼らの取引ネットワークの多くは,近畿圏という地理的範囲内で形成されている.特に,クリエイター同士の取引ネットワークは,クライアントとのそれに比べて濃密な意思疎通が必要であるため,相対的に狭い地理的範囲で形成されやすい.また,クリエイターは,リスクを回避するために既存の人脈を通じて新たな取引関係を形成することが多い.さらに,ネットワークを形成する契機は,その種類ごとに地理的な差異が存在する.一方,非取引ネットワークは,取引を前提としない対面接触の場を通じて醸成されるが,そうしたコミュニケーションを通じて,異分野のクリエイターとの協業や,暗黙知の共有,クリエイター間での相互触発,クリエイターに関する評価などが行われている.その一方で,非取引ネットワークは,クリエイター自身が評価され選別される場であるともいえる.クリエイターのネットワークは,「バズ」が有効に機能し,強い紐帯のみならず弱い紐帯を通じて取引関係を拡大しているといえる.したがって,クリエイターがネットワークを拡大する利点は大きく,これが扇町周辺にクリエイターを集中させる要因になっていると考えられる.

抄録全体を表示

The major purpose of this research is to compare the focus points on “kawaii character” between manga

and readers. In order to find that what does manga focus on when they create “kawaii characters”, we interviewed 6 manga who are excel at “kawaii characters”. And for the readers, we conducted a survey using the Chi-squared test to find out which part of the characters is the readers most focus on when they judge a character as “kawaii character”. Through the research, we found that when manga create “kawaii characters”, they often pay more attention to the characteristic of the characters as the readers often focus on the characters’ faces when they judge a character as “kawaii character”.

抄録全体を表示

The Tohoku Reconstruction & Disaster Risk Reduction (DRR) Pavilion at the Third UN World Conference on Disaster Risk Reduction was designed to provide information on and ideas about the great East Japan earthquake (GEJE) disaster and the reconstruction efforts and lessons learned from it. Disseminating information on disaster and reconstruction is essential to achieving DRR by multistakeholders through sharing knowledge such as objective perspectives, the historical background of disaster responses and the reality of reconstruction. The pavilion’s original production structure lacked a scheme unifying strong regional institutions such as the International Research Institute of Disaster Science and local creative talent. The original pavilion proposal also did not convey the disaster’s multiple facets. The Sendai School of Design (SSD) served as an intermediate platform for unifying academic knowledge, regional creative professionals and local bodies. The SSD designed and produced a pavilion for the diverse visitors from different backgrounds, literacy, experience and language with the local oriented production structure for dissemination directed by T. Iwasawa with the supervision by Y. Onoda. Effective dissemination enhances awareness and helps promote the DRR and implement reconstruction through the sharing of information. The local oriented production structure proved to effectively organize local power and knowledge for this purpose.

抄録全体を表示

Preparing Future Faculty (PFF) programs, designed for graduate students aspiring to become faculty members, have been started with the objective of helping students acquire practical teaching knowledge and skills in Japan. In order to provide graduate students with additional opportunities to reflect on the comprehensive activities associated with their teaching, research, and career paths, this study develops a Graduate Student Academic Portfolio (GSAP). The GSAP contains a document that summarizes a student's activities, accomplishments, and future goals, together with any necessary support materials, in a manner that is easily understood by third parties. Further, in a workshop designed to help students create a GSAP, seven graduate students participated and created their own portfolios. Following the workshop, questionnaires were distributed to the participants, who commented on and evaluated the workshop and GSAP creation process very positively. These responses suggest that the GSAP can serve as an effective tool for reflection in PFF programs.

抄録全体を表示

This study proposes acknowledging that open collaboration as the one of design activities and that the open collaboration has different features compared to the conventional, ownership-based designing activities. Initially, the cases of open collaboration projects were collected and they were divided into 3 types based on their commonalities. Among Competitive type, Hierarchical type, and Heterogeneous type, founded Heterogeneous type is the most similar to the solution generation process of conventional design activity, and thus chose it as the main object of this research. The grounded theory method, a qualitative approach, has been employed to analyze the context in which the selected 1,065 game creature designs of Spore was created by the participants of Sporepedia, as it corresponds to Heterogeneous type. The following elements turned out to be the key factors through which the participants acquire design activity: Unlimited copy and modification; the influence of "celebrities" who improve the level of design quality and participation; and collaborative activities, such as creature contest.

抄録全体を表示

The coupling of perception and action means that action depends on perception and, at the same time, facilitates perception. This paper deals with the mechanism of ' coupling of perception and action during creation process. Three topics are picked up: (a) ' action should be motivated by the theme of a system with the aim of perceiving beauty, such as a design idea; (b) in order to the theme optimally, should keep on self-generating the valuation standard for beauty; (c) self-generating of the valuation standard emerges from a simultaneous solving process of forward-inverse problem, which is analogous to feedback-error-learning process directed by tentative design.

抄録全体を表示

In photo-based line drawing rendering, existing algorithms often rely on edge information, leading to rendering that neglects the line density in real line drawings. This study proposes a Line Generative Adversarial Network (LineGAN) model to transform photos into manga-style line drawings by emphasizing line densities while minimizing the influence of edge information, resulting in more realistic line drawings. The LineGAN model coordinates global structure and local detail features, considering the spatial position and inter-channel contributions. This approach helps us to finely control the generation of lines, resulting in more artistic and expressive manga line effects. In addition, we collected an aligned dataset and developed two data-driven tools for creating interactive line drawings. Experiments have proven that LineGAN can produce superior manga line drawings compared to existing methods. Consequently, our model offers artists and designers an effective approach to craft high-quality manga-style line drawings.

抄録全体を表示

This paper describes a web database system that stores specific human emotional motion data sets for 3D CG short animation. An evaluation of sample 3D CG animation movies produced by two with and without the proposed database showed the following results: (1) production time is drastically reduced to less than one-fifth of the conventional production time by using the developed system, and (2) the coincidence ratio between the creator's intended emotional motion and the audience's impression was more than 80%, which indicates that the proposed system generates good nonverbal communication in 3D CG animation.

抄録全体を表示

創作者は表現したいものをいかに伝えるかに想いを巡らせ，創作物を創っている．その過程には，対象とするテーマだけではなく，創作者個人の感性や体験，表現材料や技法の工夫など，多くの要素が存在する．創作現場には情報技術の進化が関わっているが，分野が発展したことで生まれる新たな研究が人が創る過程にどう関わるのか，未来の表現がどう変容するのか，本稿では表題のセッションに関わる研究とその展望について述べる．

抄録全体を表示

Layout of digital comic applications (apps) can be broadly classified into horizontal scrolling and vertical scrolling in Japan. In this study, a questionnaire survey was conducted on digital comic reading activities and layout preferences in digital comics. Regarding the apps layout, vertical scrolling accounted for 58% in apps associated with Korean webtoon apps. On the other hand, horizontal scrolling layout accounted for 95% in apps associated with a Japanese publishing company. The results of the survey showed that paper-based comic was the most preferred, followed by apps and e-books. The horizontal scrolling layout was most preferred while using digital comic apps. Regarding the readability of the apps, more respondents indicated that horizontal scrolling layout with a single-page was easier to read than that with a double-page and vertical scroll layout.

抄録全体を表示