Powering the Future - 立命館大学

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Ritsumeikan University College of Information Science and Engineering Department of Computer Science Research/Development Areas Information Technology for a Barrierfree Information Age Research/Development Areas High-performance, Highreliability Software Systems Professor / Hideto IKEDA Cyberspace technology creates a virtual space on a network so that remote users can communicate and collaborate as if they were all near each other. Recent advances in virtual reality technology have enabled systems that enable physically distant users to look and sound as though they occupy the same space, but there are still barriers to natural language-based communication that haven’t been overcome. The Cyberspace Laboratory is attempting to create a multilingual cyberspace by fusing today’s computer graphics technologies with natural language processing technology. The Lab is researching and developing multilingual systems that use these technologies (such as multilingual newspapers, chat, e-learning and dictionaries), along with ways to access the systems from mobile terminals such as iPhones. As an added benefi t, these systems are environmentally-friendly types that will help protect the environment. Professor / Yoshitoshi KUNIEDA, Lecturer / Hiroaki KUWABARA Focusing on the system programs that form the core of computer systems, the High Performance Computing Software System Laboratory is working on several research approaches to increase overall computer system performance, efficiency, and functionality. The Lab’s specifi c system software research and development work on these objectives is always oriented toward what is feasible and practical. This work currently includes: 1. Researching and developing ways to increase the execution speed and utility of advanced parallel processing/distributed processing methods such as Cloud Computing; 2. Researching concrete system software approaches to creating safe and secure systems highly resistant to ‘Impersonation Attacks’ and ‘Process Hijacking’ (two of the major insidious software cracking techniques); 3. A software engineering approach to creating highly reliable software, through both theoretical and applied research on areas such as program analysis, model checking, concurrent computation models and type theory. Research/Development Areas Next-generation Software Development Environments Research/Development Areas Software Revolution Using Cutting-Edge System Software Professor / Katsuhisa MARUYAMA The Lab explores principles and methods for easier and faster software creation and maintenance, and researches ways of creating environments to aid software development that incorporate these principles and methods. Areas the Lab is working on include: 1. Creating tool platforms that facilitate the creation of software development support tools 2. Creating ways of tracking the evolution of a software application by analyzing the application’s development history and creating a visual representation of its structure and behavior 3. Ways of automating the refactoring process (used to improve the maintenance ease and security of software) that only reconfigure the software’s internal structures, without changing its external behavior The Lab also works on research designed to promote the formation of a web-based community centered on the construction and program code of software development environments that make active use of web technology. Associate Professor / Koichi MOURI We research system software, centering on operating systems (OS) and virtual machine monitors (VMM). System software is software that controls the core of computer systems, and so its power is paramount. Currently, even given the security holes in various applications, we are developing a new OS that prevents personal information leaks. Further, malignant software called malware (computer viruses, etc.) is spreading throughout the world. New types of malware appear every day, and so it is important to analyze its nature and create countermeasures. In some cases however, malware in recent years have functions to prevent themselves from being analyzed. Currently, we are developing VMM to enable malware analysis. Further, we are also developing real time VMM to enable multiple embedded systems to be collected as one. Warns about vulnerabilities created when making program revisions Program creation screen Revised code Old code Security warning ■A prototype software development tool the Lab developed to detect fragile code 35 Ritsumeikan University Powering the Future
Research/Development Areas Integration of Real World with Information Space Research/Development Areas Technology Used to Define Software Requirements Professor / Nobuhiko NISHIO, Associate Professor / Eric COOPER Integration of the Real World with Information Spaces We are researching and developing technology that is fundamental to providing services that integrate the real world with information spaces, amidst the ubiquity of countless computers and networks in our surrounding environment. Collaboration of Smart Phones in “the Cloud” We are researching and developing core technology to provide diverse services suited to each user’s situation by combining “the Cloud” with smart phones equipped with multiple sensors and 3G constant connections. We are investigating technologies that infer the near future by extreme data mining of the sensing data stored in personal activity histories and by automatic lifelog generation. Real World Oriented CMS We are researching and developing a new type of CMS (content management system) comprised of servers that intensively manage and mine information linked to anything and everything in the real world. The system clients we are developing integrate the CMS information with Google Street View and panoramic views of the Umeda underground, using our own photographic footage. We are also developing panoramic viewers that operate independently and research technology to make spatially and temporally relevant recommendations based on information mining in both of these dimensions. Professor / Atsushi OHNISHI The Software Engineering Laboratory researches methods of eliciting software requirements from clients or users, of analyzing the elicited results, of creating specifications from the elicited results, and of managing the specifications of such requirements (Software requirements are the information used to specify the functions, performance, design constraints and so on required for the software to be developed.) Among other things, the Lab is working on the research projects below. Using scenarios to help elicit requirements To find problems in functions and user interfaces, the Lab develops scenario languages and uses scenarios to express the behavior of software and users. This research work includes changing scenario points of view, generating scenarios from normal scenarios, generating scenarios by replacing parts of existing scenarios, and ways of assisting scenario classification. Using ontology requirements to help elicit requirements To assist software analysts without domain-specific knowledge who need to elicit requirements, the Lab prepares domainspecific knowledge in the form of ontology requirements. The Lab also researches ways of compiling the elicited results into semi-formol Japanese requirements specifications. College of I nformation Science and Engineering Research/Development Areas 1. Operating Systems 2. Database Systems 3. Computer Networks Professor / Eiji OKUBO, Lecturer / Yusuke YOKOTA The Computer Software Laboratory carries out system software research on areas such as operating systems, database systems, distributed systems and computer networks. The Lab’s research centers around platform software supporting ubiquitous computing environments such as network servers, embedded systems, personal sensing and multimedia systems. The Lab’s recent work has focused on sensor networks comprised of large numbers of sensor devices with wireless communication functions. Sensor networks are designed to perform intelligent and sophisticated tasks using sensor nodes that coordinate their operations by continually adjusting to each other. The Lab researches technology used to construct sensor network systems, sensor database systems and P2P (peer-topeer) data storage systems-systems with demanding restrictions on areas such as computing capacity and power usage. Research/Development Areas Computer Systems Professor / Shigeru OYANAGI The Computer System Laboratory researches and develops hardware and software designed to boost the performance of the computer systems that make the information age possible. Some of the Lab’s current research areas are: Superscalar processors Research on the elemental technology needed to improve the performance of superscalar processors Superscalar processors are a type that can execute multiple commands simultaneously. Improving their performance will require a reduction in command interdependence and an increase in the number of commands that can execute in parallel. Multicore chips Researching and developing networks-on-chips that guarantee real-time communication while minimizing communication lags This R&D work is designed to maximize the performance of multicore chips. Multicore chips are the result of improvements in LSI integration that enable systems to be implemented as multiple cores mounted on a single chip. Data mining Research on algorithms that extract characteristics from large volumes of data rapidly and precisely Data mining is a technology used to extract patterns and information hidden in large volumes of data. 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Powering the Future - 立命館大学

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