Yasuhiro Yamamoto

Position Paper for Hypertext01 WS on Spatial Hypertext Spatial Positioning as a Representation that Helps us Think (2009)

Kumiyo Nakakoji, Yasuhiro Yamamoto

Our research focuses on the design of interactive systems that support early stages of creative design tasks. Externalization plays a critical role especially in the early stages of design. For...

STYLES OF PARTICIPATION AND ENGAGEMENT IN COLLECTIVE SOUND PERFORMANCE PROJECTS (2008)

Kazuhiro Jo, Yasuhiro Yamamoto, Kumiyo Nakakoji

The SINE WAVE ORCHESTRA (SWO) is a collaborative sound performance project that has been actively performing for the past several years. The basic idea is that each participant plays a sine wave, and...

ART-SHTA: A Tool for Sculptural Hypertext Authoring (2008)

Yasuhiro Yamamoto, Kumiyo Nakakoji, Atsushi Aoki

The ART-SHTA (Sculptural HyperText Authoring) tool supports information and concept structuring for analytical and scholarly compositional tasks. ART-SHTA employs three hypertext techniques:...

Ultraviolet divergences of flavor changing amplitudes in the littlest Higgs model with T-parity (2008)

Goto, Toru, Okada, Yasuhiro, Yamamoto, Yasuhiro

Flavor changing neutral current processes are studied in the littlest Higgs model with T-parity. It is found that the logarithmic divergence reported earlier in Z boson flavor changing processes is...

ARTICLE IN PRESS (2008)

Yasuhiro Yamamoto, Kumiyo Nakakoji

www.elsevier.com/locate/ijhcs Interaction design of tools for fostering creativity in the early stages of information design

A Conceptual Framework for Learning Experience Design (2008)

Kumiyo Nakakoji, Kazuaki Yamada, Yasuhiro Yamamoto, Masayasu Morita

This paper describes our approach of utilizing a computational environment to apply a learner’s learning process as a first class object. With this approach, the learner’s learning process can be...

The Landscape of Time-based Visual Presentation Primitives for Richer Video Experience (2008)

Yasuhiro Yamamoto, Kumiyo Nakakoji, Akio Takashima

Abstract. As technology advances, we have increasingly more opportunities to use video for our knowledge work, such as monitoring events, reflecting on physical performances, learning subject matter,...

ARTWare: A Component Library for Building Domain-Oriented Authoring Environments (2008)

Yasuhiro Yamamoto

Building interactive systems using multimedia objects requires a wide range of knowledge including knowledge about 3D objects, graphics, movies, sound, and how to design user interface. We have built...

Use-Centric Information Re-presentation for Creative Knowledge Work (2008)

Tomohiro Oda, Yasuhiro Yamamoto, Kumiyo Nakakoji

This paper presents an approach that supports creative knowledge work by re-presenting information that the user has previously used. The Phantasmic Shadows system uses a set of presently used...

Atrogin-1 ubiquitin ligase is upregulated by doxorubicin via p38-MAP kinase in cardiac myocytes (2008)

Yamamoto, Yasuhiro, Hoshino, Yuki, Ito, Takashi, Nariai, Tetsuro, Mohri, Tomomi, Obana, Masanori, ...

Aims Doxorubicin (DOX) is one of the most effective anti-neoplastic agents; however, its clinical use is limited by drug-induced cardiomyopathy. The molecular mechanisms responsible for this toxicity...

Primary Extraskeletal Ewing Sarcoma of the Thoracic Spinal Epidural Space: A Case Report (2007)

Yasuhiro Yamamoto, Osuke Washimi, Daisuke Ishimura, Harumoto Yamada, Makoto Kuroda, Masatake Matsubara, ...

Cases of extraskeletal Ewing sarcoma (EES) originating primarily within the spinal epidural space, are very rare and have a very poor prognosis. There is no standard therapy for this disease. We...

Functional evaluation of lung by Xe-133 lung ventilation scintigraphy before and after lung volume reduction surgery (LVRS) in patients with pulmonary emphysema. (2006)

Kurose, Taichi, Okumura, Yoshihiro, Sato, Shuhei, Yamamoto, Yasuhiro, Akaki, Shiro, Takeda, Yoshihiro, ...

We evaluated the respiratory functions of patients with pulmonary emphysema who underwent lung volume reduction surgery (LVRS) by the mean transit time (MTT) with Xe-133 lung ventilation...

Differentiation of thyroid nodules using Tl-201 scintigraphy quantitative analysis and fine-needle aspiration biopsy. (2006)

Yamamoto, Yasuhiro, Okumura, Yoshihiro, Sato, Shuhei, Maki, Kumi, Mukai, Takashi, Mifune, Hirofumi, ...

We studied the differentiation of thyroid nodules using fine-needle aspiration biopsy (FNA) and Tl-201 scintigraphy quantitative analysis. One-hundred and thirty-one thyroid nodules were examined: 83...

ART019: A Time-Based Sketchbook Interface (2006)

Yasuhiro Yamamoto, Kumiyo Nakakoji, Yoshiyuki Nishinaka, Mitsuhiro Asada

Sketching has been regarded as a primary means of externalization for creative processes in the early stages of design. Existing sketchbook interfaces have primarily used two notions in their...

A History-Centric Approach for Enhancing Web Browsing Experiences (2006)

Yoshinari Shirai, Yasuhiro Yamamoto, Kumiyo Nakakoji

Browsing Web pages, which plays an important part of our daily creative knowledge work, often includes purposefully revisiting pages we have browsed before. Many of the existing tools and approaches...

Interacting with Interaction Histories in a History-Enriched Environment (2005)

Yoshinari Shirai, Kumiyo Nakakoji, Yasuhiro Yamamoto

A ubiquitous computing environment would capture a large amount of interaction histories of objects in the environment over a long period of time, such interaction histories serve as a valuable...

STAT3 mediates cardioprotection against ischemia/reperfusion injury through metallothionein induction in the heart (2005)

Oshima, Yuichi, Fujio, Yasushi, Nakanishi, Tsuyoshi, Itoh, Norio, Yamamoto, Yasuhiro, Negoro, Shinji, ...

Objective: Activation of signal transducer and activator of transcription 3 (STAT3) was reported to be correlated with myocardial protection against ischemia/reperfusion (I/R) injury in ischemic...

Organic Perspectives of Knowledge Management: Knowledge Evolution through a Cycle of Knowledge Liquidization and Crystallization (2004)

Knowledge Liquidization, Koichi Hori, Kumiyo Nakakoji, Yasuhiro Yamamoto, Jonathan Ostwald

Abstract: Our research on knowledge management is rooted in the community perspective. We believe that knowledge systems should serve primarily to help people create and share new knowledge. But we...

Organic Perspectives of Knowledge Management: Knowledge Evolution through a Cycle of Knowledge Liquidization and Crystallization (2004)

Knowledge Liquidization, Koichi Hori, Kumiyo Nakakoji, Yasuhiro Yamamoto, Jonathan Ostwald

Abstract: Our research on knowledge management is rooted in the community perspective. We believe that knowledge systems should serve primarily to help people create and share new knowledge. But we...

A Model and a Tool for Active Watching: Knowledge Construction through Interacting with Video (2004)

Akio Takashima, Yasuhiro Yamamoto, Kumiyo Nakakoji

We view knowledge construction as a dynamic process by which people interact with external representations. This paper focuses on the knowledge construction process when interacting with video, such...

Toward a Taxonomy of Interaction Design Techniques for Externalising in Creative Work (2003)

Kumiyo Nakakoji, Yasuhiro Yamamoto

Externalizing, the act of creating and modifying an external representation, plays a crucial role in creative design work. Whether a tool supports externalizing in a designer’s desirable manner...

Organic Perspectives of Knowledge Management (2003)

Jonathan Ostwald, Koichi Hori, Kumiyo Nakakoji, Yasuhiro Yamamoto

The contribution of the paper is a framework for integrating organization and community perspectives on knowledge management and its computational support. Our research on knowledge management is...

Interaction design as a collective creative process (2002)

Kumiyo Nakakoji, Yasuhiro Yamamoto

This paper reports our case study on an ongoing interaction-design-centered software development project (ART project) viewed as an evolutionary collective creative process. In this project, a visual...

Evolution patterns of open-source software systems and communities (2002)

Kumiyo Nakakoji, Yasuhiro Yamamoto

Open-Source Software (OSS) development is regarded as a successful model of encouraging “natural product evolution”. To understand how this “natural product evolution ” happens, we have...

Visual Interaction Design for Tools to Think with: Interactive Systems for Designing Linear Information (2002)

Yasuhiro Yamamoto, Kumiyo Nakakoji, Atsushi Aoki

We have developed a series of tools, which use spatial positioning of objects as a means of externalizations in designing linear information. They include a tool for collage-style writing, a tool for...

Spatial Hypertext for Linear-Information Authoring (2002)

Yasuhiro Yamamoto, Kumiyo Nakakoji, Atsushi Aoki

We have developed a series of spatial hypertext systems that support early stages of linear-information authoring, such as paper writing and movie editing. They are designed based on the ART...

Evolution patterns of open-source software systems and communities (2002)

Kumiyo Nakakoji, Yasuhiro Yamamoto

Open-Source Software (OSS) development is regarded as a successful model of encouraging “natural product evolution”. To understand how this “natural product evolution ” happens, we have...

Cognitive Effects of Animated Visualization in Exploratory Visual Data Analysis (2001)

Kumiyo Nakakoji, Akio Takashima, Yasuhiro Yamamoto

The goal of this research is to study the role and effects of the use of animated information visualization in early stages of exploratory data analysis tasks. Despite the existence of a large body...

What Does the Representation Talk Back to You (2001)

Kumiyo Nakakoji, Yasuhiro Yamamoto

Our research goal is to support designers with interactive systems by exploring the relationship among representations, their meanings, and their effects. This paper first outlines ART (Amplifying...

Time-ART: A tool for segmenting and annotating multimedia data in early stages of exploratory analysis (2001)

Yasuhiro Yamamoto, Atsushi Aoki, Kumiyo Nakakoji

Time-ART is a tool that helps a user in conducting empirical multimedia (video/sound) data analysis as an exploratory iterative process. Time-ART helps a user in (1) identifying seemingly interesting...

Cognitive Effects of Animated Visualization in Exploratory Visual Data Analysis (2001)

Kumiyo Nakakoji, Akio Takashima, Yasuhiro Yamamoto

The goal of this research is to study the role and effects of the use of animated information visualization in early stages of exploratory data analysis tasks. Despite the existence of a large body...

Hands-on representations in a two-dimensional space for early stages of design (2000)

Yasuhiro Yamamoto, Kumiyo Nakakoji, Shingo Takada

In design, problem analysis is as important as solution synthesis. Strategic knowledge is required not only for constructing a solution but also for framing a problem. While externalized...

Two-dimensional positioning as a means to represent strategic knowledge in design. Strategic Knowledge and Concept Formation (SKCF (1999)

Kumiyo Nakakoji, Yasuhiro Yamamoto, Shingo Takada

ABSTRACT In design activities such as writing and programming, problem analysis (identifying what should be constructed) and solution synthesis (how they should be integrated) depend on each other....

A Framework that Supports Collective Creativity in Design using Visual Images (1999)

Kumiyo Nakakoji, Yasuhiro Yamamoto, Masao Ohira

The goal of our research is to develop computer systems that support designers' collective creativity; such systems support individual creative aspects in design through the use of...

SRA Inc. (1141)

Kumiyo Nakakoji, Yasuhiro Yamamoto, Shingo Takada, Brent N. Reeves

In the realm of computer support for design, developers have focused primarily on power and expressiveness that are important in framing a design solution. They assume that design is a series of...

SRA Inc. (1141)

Kumiyo Nakakoji, Yasuhiro Yamamoto, Shingo Takada, Brent N. Reeves

In the realm of computer support for design, developers have focused primarily on power and expressiveness that are important in framing a design solution. They assume that design is a series of...