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Dive into the research topics where Hiroaki Kaminaga is active.

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Featured researches published by Hiroaki Kaminaga.


ieee international conference on progress in informatics and computing | 2015

Methods for extracting the polish contexts in research document creation

Ryo Onuma; Hiroki Nakayama; Shuhei Abe; Hiroaki Kaminaga; Youzou Miyadera; Shoichi Nakamura

Intellectual document creation and its polish represent an important phase in research activities. This kind of documenting consists of multiple tasks. Such combined documenting involves the contexts in their processes of polish. Polish contexts are often valuable hints that can be utilized for later work. However, it is difficult for most users, especially research beginners, to manage the polish contexts and satisfactorily utilize them. This research was aimed at developing methods for extracting the contexts and organizing them so that users could easily reflect on the contexts. A method for extracting important portions of the generated context information network is also proposed. The effectiveness and features of the proposed methods are discussed based on the results obtained from experiments.


dependable autonomic and secure computing | 2015

Graph Grammar for the Research Information Collection Method According to Research Activities

Youzou Miyadera; Chiaki Murakami; Koichi Anada; Yasuhiko Morimoto; Shoichi Nakamura; Hiroaki Kaminaga; Takeo Yaku

To share information more effectively in a laboratory, this study develops a method to collect and visualize research documents as well as research activities efficiently without exception. First, this paper introduces a research information relation graph that reflects research activities that obtain information. Furthermore, this paper makes research activities modeled as productions that help to generate the graph and defines the graph grammar, which generates a research information relation graph, by using the production. It is expected that conducting research in accordance with this grammar can reduce the burden of laboratory members in making research information graphs and make information sharing easy by visualizing both research documents and the context information. Customizing the graph grammar in accordance with a particular scenario and applying this method to various scenarios can make it easy to realize a system for collecting and sharing research information in different research fields.


international conference on computer sciences and convergence information technology | 2009

Development of a Topic-Centered Adaptive Document Management System

Shoishi Nakamura; Saori Chiba; Hiroaki Kaminaga; Setsuo Yokoyama; Youzou Miyadera

Skillful management of the various types of documents used in intelligent activities and their efficient utilization are important. However, most available systems target only a single type of document (e-mails, Web pages, etc.) or are not adaptive enough. A more promising approach is topic-centered document management. A topic-centered document management system is described that changes its own functions and interfaces adaptively.


Procedia Computer Science | 2015

Hybrid Analysis of Audience Gaze and Slide Construction to Obtain the Clues for Improving Presentations

Tomohiro Funayama; Hiroki Nakayama; Ryo Onuma; Hiroaki Kaminaga; Youzou Miyadera; Shoichi Nakamura

Abstract The aim of this research is to develop a novel mechanism for finding clues to improve presentations and providing them to its author. Promising approach is extracting the defect portions of slides by analyzing the multiple familiar sources that have been overlooked. This paper describes an overview of the hybrid analysis of audience gaze and characteristics of slide construction.


international conference for internet technology and secured transactions | 2013

Methods for strategic accumulation of context information in research activities

Ryo Onuma; Hiroki Nakayama; Hiroaki Kaminaga; Yasuhiko Morimoto; Youzou Miyadera; Shoichi Nakamura

Research activities normally consist of numerous works such as paper composition, discussions and surveys of literature. It is important for smooth accomplishment of research to strategically accumulate the context information (i.e. processes of the work, methods and results) and to skillfully utilize them. However, it is difficult to accumulate relevant context information since most automatic methods target only the specific work and/or researchers tend to selectively use different applications suitable for each purpose. This research aims to develop methods of organizing context information across the different styles of information and applications. This paper outlines methods to strategically accumulate context information and to organize it. Moreover, it describes an experiment using test-case data and discusses the effectiveness of the methods in light of the results.


international conference for internet technology and secured transactions | 2013

Extraction methods of e-mail discussion processes considering diversity of description granularity and their complicated relationships

Hiroki Nakayama; Ryo Onuma; Hiroaki Kaminaga; Youzou Miyadera; Setsuo Yokoyama; Shoichi Nakamura

Discussion using e-mail is frequently conducted in intelligent works such as research activity. It is important but generally difficult to successfully grasp the processes of the discussions and their results. There exist descriptions of diverse particle sizes in actual discussion using e-mail. This feature brings about the difficulty in grasping the discussion processes in addition to basic features such as increase of number of e-mails. Although there have been some research projects which aim at extraction of discussion processes, these existing methods have not consider the diversity of description granularity. This research has aimed to develop a support system for extracting discussion processes and their visualization. This paper mainly describes methods for extracting the discussion processes considering the diversity of description granularity and complicated connections between them. This paper also describes the overview of target service and the outline of support system.


international conference on knowledge based and intelligent information and engineering systems | 2009

Algorithms for Extracting Topic across Different Types of Documents

Shoichi Nakamura; Saori Chiba; Hirokazu Shirai; Hiroaki Kaminaga; Setsuo Yokoyama; Youzou Miyadera

Clever management of the various types of documents used in intelligent activities and their efficient utilization are important. However, most available methods target only a single type of document (e-mails, Web pages, etc.). A more promising approach is topic-centered document management. Algorithms are described for extracting topics across various of types of documents. Moreover, a topic-centered document management system is described that is based on grouping by topics.


Proceedings of the 2017 International Conference on Computer Science and Artificial Intelligence | 2017

Analyzation of Relationships among Search Queries for Extracting the Complicated Contexts in Web Exploration

Shoichi Nakamura; Takuya Matsumoto; Hiroki Nakayama; Ryo Onuma; Hiroaki Kaminaga; Youzou Miyadera

Complicated Web exploration involving trial and error is quite important in intellectual creative activities. To successfully conduct such exploration, each user needs to satisfactorily understand the results and circumstances (i.e., contexts) of his/her own exploration. However, the contexts are difficult for a user to understand since queries and the pages obtained with them increase rapidly as exploration progresses. In this research, we were aiming at developing methods for visualizing the contexts so that a user can easily understand them. This paper mainly describes methods for clustering queries and extracting the transitions of search queries by analyzing the relationships between the clusters of queries. Moreover, this paper also describes a prototype of context map with some screenshots.


international conference for internet technology and secured transactions | 2016

Learning History Transition Graphs for understanding the programming learning situations

Hiroki Nakayama; Shoichi Nakamura; Kaname Nozaki; Yasuhiko Morimoto; Hiroaki Kaminaga; Youzou Miyadera

This research project aims at enabling easier understanding of a learning situation on the basis of a students learning process (compile error history) in programming exercise currently conducted at universities. We express transition of learning history of a student in graph form of time series (we call it Learning History Transition Graph (LHTG)). Facilitators or a learner can refer to an LHTG along with additional information regarding the learner. Moreover, this paper describes a prototype of the support system for grasping the learning situation introducing LHTG along with the flow of our support. Application of this system enables a novel learning support with an emphasis on context.


international conference for internet technology and secured transactions | 2016

Dynamically visualizing the relationships between Web pages depending on user's search viewpoints

Daisuke Arakawa; Hiroki Nakayama; Ryo Onuma; Hiroaki Kaminaga; Youzou Miyadera; Shoichi Nakamura

Opportunities of continuous Web exploration with trial and error have been increased in intellectual creative activities such as research work and PBL. However, it is often difficult to pick up useful pages. In such exploration, information that a user particularly needs and his/her viewpoints changes in accordance with progress of the work and trial and error in it. Therefore, it is important but difficult to understand the relationships between obtained pages and to examine the promising information based on the latest perspectives. We aimed to develop the mechanism for dynamic visualization of the relationships between the pages. This paper mainly describes the outline of our dynamic visualization and methods for extracting the relationships between the pages using focused page of a user as a base point.

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Atsuo Hazeyama

Tokyo Gakugei University

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