2011 IEEE International Conference on Service-Oriented Computing and Applications (SOCA)

As the Web has evolved, web-based capabilities or web services have become a significant aspect of day-to-day routines for businesses and individuals, alike. Interactions with the Web and its services represent a significant portion of overall global power consumption. With the current national emphasis on sustainable resources and energy-efficiency, it is paramount that web processes be efficient... View full abstract»

The use of scientific knowledge on waste wood management is the main factor that facilitates the responsible use of recovered wood respecting the environment. Nowadays, numerous scientific results are generated and published by universities and research institutions; but small quantities are exploited by nonscientific people. This problem is due to the difficulty of transfer and assimilation of th... View full abstract»

As the climate change problem becoming an increasingly important global issue, tracking, analyzing and reducing Green House Gas (GHG) emissions at individual user and household level has attracted wide attention. In this paper, we will introduce our approach of building flexible personal carbon footprint calculation platform that can serve as a platform for automatic generation of various carbon f... View full abstract»

Smart grid systems have been actively discussed to realize a sustainable and a low-carbon society that efficiently consumes electric power and to introduce photovoltaic power generation, i.e., renewable energy or electric vehicles. In this study, we focus on the smart meter system based on an agent model to manage electric power use in residential homes with which solar panels and a storage batter... View full abstract»

Social networking sites like Facebook, twitter, and myspace are becoming overwhelmingly powerful media in today's world. Facebook has 500 million active users and twitter has 190 million visitors per month and increasing each second. On the other hand number of smart phone users has crossed 45 millions. Now we are focusing on building an application that will connect these two revolutionary sphere... View full abstract»

Context-aware services concern with reasoning about surrounding context and adapting services accordingly have attracted much research attention during recent years, whereas the relation between context-aware service evolution and requirements evolution has not caught many researchers' eye. Conventionally, requirements engineering particularly focuses on users' needs, we argue though that develope... View full abstract»

SNS services using the Internet are more popular than ever. In particular, new services using photos and location information such as `Instagram' and `Foursqaure' have recently appeared. However, there is no service that allows users to browse to activities and post information about their current location easily. Therefore, we have developed a participatory system with a high regard for location ... View full abstract»

Cyber-Physical Systems (CPS) consist of distributed computation interconnected by computer networks that monitor and control switched physical entities interconnected by physical infrastructures. Finding a common semantic among these diverse components that facilitates system synthesis, verification, and monitoring is a significant challenge of a CPS research program. In the emerging smart grid, f... View full abstract»

The localization systems using Time Difference of Arrival (TDoA) of ultrasonic and RF signals are hard to be used in practical settings because of line-of-sight limitation of the ultrasonic signal. Overcoming this limitation, novel multi-lateration method that explicitly exploiting the ultrasonic reflections was proposed. This paper verifies the proposed method by testing in the actual practical s... View full abstract»

In recent years, physical sensor devices are used in many different applications, such as: Internet of Things (IoT), military, vehicle system, etc. Sensor devices are widely utilized in the real world so that a large-scale process becomes an important issue in such a cyber physical system. Large scale cyber physical system (LCPS) must have enough computing power for processing all real-time sensed... View full abstract»

The paper discusses how we need to design our daily environments that various computing facilities are embodied. These computer-enhanced environments become more and more virtual, and may lose the reality. Therefore, it is important to take into account how to recover the reality of the virtualized real world. If not, a user may not be able to find the right semantics of the environments, and lose... View full abstract»

The constantly increasing scale of sensor network deployments has brought up a number of resource utilization, communication, and computation issues. In this paper we present a model-driven tiered architecture that allows us to address some of those challenges. Preliminary results show that this architecture could save more than 90% of the original data communication. View full abstract»

Simulation methods are widely used when designing complex systems to reduce the development effort and cost. Especially when designing cyber-physical systems (CPSs), the importance of the simulation grows bigger and bigger. To simulate CPSs precisely, a holistic simulator is needed considering cyber and physical systems as a whole. In this paper, we clarify the limitations of the existing simulati... View full abstract»

This paper presents a study on building intelligent middleware on wireless sensor network (WSN) for large-scale cyber-physical systems (LCPS). A large portion of WSN projects has focused on low-level algorithms such as routing, MAC layers, and data aggregation. At a higher level, various WSN applications with specific target environments have been developed and deployed. Most applications are buil... View full abstract»

In this paper, we consider multiple robot display formation such that when users give a sequence of images as input, a large number of robots construct a sequence of formations to visualize the input images collectively. Users perceive a higher quality of responsiveness when robots respond to users' input in a more prompt and/or regular manner. A key problem in multiple robot display is trajectory... View full abstract»

Cyber-Physical Systems (CPS) are integrations of computation and physical processes. The powerful processors and variety of sensors equipped in mobile Internet devices can be leveraged to build cyber-physical applications that collect sensor data from the real world and communicate it back to services for processing and aggregation. In this paper, we present a design of a framework which can provi... View full abstract»

Cloud computing and SaaS (Software-as-a-Service) received significant attention recently. Testing SaaS applications is important because many mission-critical applications will be deployed on the cloud. However, to the best of our knowledge, testing framework designed specifically for SaaS applications is not developed. The issue of testing the scalability of SaaS applications remains untouched. T... View full abstract»

A general service-oriented control system for machine automation is introduced, as an alternative to proprietary, closed solutions. The proposed platform emphasizes interoperability and introduces some novel approaches in the machine control domain, such as the usage of peer-to-peer networking with distributed service composition. As a proof of concept, the platform was applied to convert a group ... View full abstract»

Cloud computing and Software-as-a-Service (SaaS) are being widely applied. In the near future, there will be many cloud services providing similar services. One of the issues is to dispatch service requests to available services dynamically so that service requests can be served in the most effective and efficient way. This paper proposes an algorithm that efficiently serves requests for services ... View full abstract»

Reservation-based scheduling has been proved to be an effective solution for serving virtual machines when some kind of real-time guarantees are required. However, the virtualisation mechanism and the algorithm used for implementing CPU reservations might have a large impact on the guarantees provided to tasks running inside the VMs. This paper presents an experimental evaluation of some different... View full abstract»

Energy efficiency is becoming a very important concern for Cloud Computing environments. These are normally composed of large and power consuming data centers to provide the required elasticity and scalability to their customers. In this context, many efforts have been developed to balance the loads at host level. However, determining how to maximize the resources utilization at Virtual Machine (V... View full abstract»