Hiroaki Ogata

This paper describes a computer supported ubiquitous learning environment for language learning. This paper proposes two systems. The first is context-aware language-learning support system for Japanese polite expressions learning, which is called JAPELAS (Japanese polite expressions learning assisting system). This system provides learner the appropriate polite expressions deriving the learner's situation and personal information. The second system is called TANGO (Tag Added learNinG Objects) s

This paper describes a computer supported collaborative learning (CSCL) in a ubiquitous computing environment. In the environment called CLUE, the learners provide and share individual experience and interaction corpus and discuss about them. This paper focuses on the design, implementation, and evaluation of knowledge awareness map. The map visualizes the relationship between the shared knowledge and the current and past interactions of learners. The map plays a very important role for finding

This paper describes a computer supported ubiquitous learning (CSUL), called CLUE, the learners provide their own knowledge about the language learning in their everyday life, share them in the community and discuss about them. This paper focuses on knowledge awareness map and its design, implementation and evaluation. The map visualizes the relationship between the shared knowledge and the current and past interactions of learners. The map plays a very important role of finding peer helpers, an

This paper provides an overview of the Educational Big Data research project at Kyushu University, Japan. This project uses an e-book system called BookLooper. which allows students to browse e-books in Web browser, PC, mobile devices such as smartphone. This paper shows research issues in this project. Currently, about 2,700 first-year students are using the e-book system and approximately 2.2 million log data have been accumulated as of May 20, 2015. This paper describes why we introduce e-boo

Ubiquitous computing could help the organisation and the mediation of social interactions wherever and whenever these situations might occur. Using those technologies enables the learning environment to be embedded in real daily life. One of the most important ubiquitous technologies is the radio frequency identification (RFID) tag, which is very useful and efficient to realise ubiquitous computing, by mapping the real objects and the information into a virtual world. In the near future, RFID ta

This paper describes a Computer-Supported Mobile Learning (CSML) environment for language learning, called Language-learning Outside the Classroom with Handhelds (LOCH). In the environment, the teacher assigns field activities to the students, who go around the town to fulfil them and share their individual knowledge and experiences. The main aim of this project, called One-Day Trip with PDA, was to integrate the knowledge acquired in the classroom and the real needs of the students in their dai

This paper describes a computer supported collaborative learning (CSCL) in a ubiquitous computing environment. In the system called CLUE, the learners provide and share individual experience and interaction corpus and discuss about them. This paper focuses on the design, implementation, and evaluation of knowledge awareness map. The map visualises the relationship between the shared knowledge and the current and past interactions of learners. The map plays a very important role for finding peer

Knowledge awareness (KA) has been proposed to increase collaboration opportunities in an open ended and collaborative learning environment. To encourage collaboration, an individual user's agent called KA-Agent autonomously informs the learner about up-to-the-minute activities from other learners. For instance, a message might be "someone is looking at the same knowledge that you are looking at." Although this message, called active KA, is very useful to create real-ti

This paper describes a computer-assisted language learning (CALL) in a ubiquitous computing environment. The environment, called TANGO (Tag Added learNinG Objects) system, detects the objects around the learner using RFID (Radio Frequency Identification) tags, and provides the learner the right information for language learning. This system supports learning in daily life with PDA (personal digital assistant) beyond web based education with desktop computers. In the experiment, the learner playe

A Ubiquitous Learning Log (ULL) is defined as a digital record of what a learner has learned in daily life using ubiquitous computing technologies. In this paper, a project which developed a system called SCROLL (System for Capturing and Reusing Of Learning Log) is presented. The aim of developing SCROLL is to help learners record, organize, recall and evaluate ULLs. Using SCROLL, learners can not only receive personalized quizzes and answers to the questions, but also navigate and be aware of t

This paper proposes a personal learning assistant called LORAMS (Link of RFID and Movies System), which supports the learners with a system to share and reuse learning experience by linking movies and environmental objects. These movies are not only kind of classes' experiments but also daily experiences movies. Therefore, you can share these movies with other people. LORAMS can infer some contexts from objects around the learner and search for shared movies that match with the contexts. We thin

A PCR-based assay has been devised for the detection and semiquantitation of cells originating from a few donor hematopoietic stem cells (HSCs) in a background of recipient cells. Upon sequencing a segment of murine Y chromosome contained in the plasmid pY2, oligonucleotide primers were designed for specific amplification of the Y chromosome-restricted segment. The HSCs were isolated from the bone marrow of mice on day 4 following a single i.v. injection of 5-fluorouracil and were readily distin