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This paper proposes a self-adaptive interactive navigation tool (SAINT), which is tailored for cloud-based vehicular traffic optimization in road networks. The legacy navigation systems make vehicles navigate toward their destination less effectively with individually optimal navigation paths rather than network-wide optimal navigation paths, particularly during rush hours. To the best of our knowledge,...
From regression tests, developers seek to determine not only the existence of faults, but also failure information such as what test cases failed. Failure information can assist in identifying suspicious modules or functions in order to fix the detected faults. In continuous integration environments, this can also help managers of the source code repository address unexpected situations caused by...
A bug report is mainly used to find a fault location in software maintenance. It contains several fields such as summary, description, status and version. The description field includes detail scenario and stack traces if exceptional messages are presented. Recently researchers have proposed several approaches for automatic bug localization by using information retrieval and data mining. We propose...
This paper proposes a Safety-Aware Navigation App for pedestrian protection app in vehicular networks. This application gives a collision warning to both vehicles and pedestrians. This application realizes a mobile computing service for the road safety where vehicles themselves or mobile devices (e.g., smartphones and tablets of drivers or passengers in vehicles) play a role of both cloud server and...
This paper proposes the design of Vehicular Cyber-Physical Systems (called VCPS) for smart road services in vehicular networks. Our VCPS realizes mobile cloud computing services where vehicles themselves or mobile devices (e.g., smartphones and tablets of drivers or passengers in vehicles) play a role of both cloud server and cloud client. First, this paper describes the architecture of vehicular...
Fault localization is an essential step for debugging, even though it is still tedious and time-consuming activity. Many researchers tried to find a good way for it for decades. Many solutions proposed by them have different performance, such as correctness, code coverage, and etc. However there are few attempts to compare those solutions in an objective way. It makes software testers confuse to choose...
Agile development methods are being recognized as popular and efficient approaches to the development of software systems that have features such as a short delivery period and unclear requirements. They emphasize customer satisfaction, fast response to changes, and release in less time. According to a recent survey, SCRUM is one of the most popular methods that are currently being used. Some backlogs,...
Smart Home Service Robot(S-HSR) is a robot used for household chores on behalf of human. Human desires to get free of household affairs have increased the necessity of S-HSR. In the near future, every home will at least possess and use more than one S-HSR[1].
The problem of system complexity has recently attracted much attention. The self-healing system that is considered as a novel solution is one of the autonomic computing methodologies. It automatically recognizes faulty states of the system and provides the ability of self recovery without human intervention. There have been plenty of studies on monitoring methodologies from both inside or outside...
Map data generation in geographic information system is based on large amount of realistic data and therefore requires a lot of time and money to create and change the data. In this study, to overcome such problems, we suggested a real-time map creation system with high accuracy using a few user GPS(Global Position System) trace data. The system enables efficient and economical road map creation in...
Since the computer era began, companies built various information systems in order to increase efficiency and fulfill the customer requirement. While the number of systems doubled, the number of interfaces linking the systems increased and the interface type became various. Accordingly, the management of interface became a big challenge. This paper suggests SOA as system interface and a step-by-step...
This work concerns the development of a fault model of sensor for detecting and isolating sensor, actuator, and various faults in USNs (Ubiquitous Sensor Network). USN are developed to create relationships between humans, objects and computers in various fields. A management research of sensor nodes is very important because the ubiquitous sensor network has the numerous sensor nodes. However, Self-healing...
As the amount of available information on the Internet has become huge, it has become increasingly difficult for users to find information that is relevant to their needs. This has necessitated automated tools that can help users find information they need quickly and easily. In this paper, we propose a methodology for automatically finding topics of interest to users through related subWebs (subdirectories...
The computing environment of today is very complex. Research that endows a system with a self-healing ability that recognizes problems arising in a target system is valuable. However, most of the existing research shows that self-healing development environments need much effort and time to analyze and model constraints. Thus, in order to these problems, this paper proposes a reconfiguration framework...
An amount of information on the Web has been increased explosively with the growth of information technology. In the area of electronic commerce, the recommender systems that provide personalized content are crucial research issue. The analysis of efficient user preference is important for improving the recommendation accuracy. Existing recommendation system has used implicit feedback for analyzing...
As the rapid evolvement of distributed computing system, the requirements imposed on problem determination techniques are increased to help system control and manage in high levels of automated ways, which represents the capability of self-healing. Many artificial intelligent approaches are widely used in the fields of fault managements. In this paper, we propose an approach to fault management for...
It is an important issue for software architects to estimate the performance of software in the early stage of development process due to the needs to verify QoS. Queueing network model is a very useful tool to analyze the performance of a system from abstract model. In this paper, we propose a transformation technique from UML into queueing network model. This approach avoids the need for a prototype...
In maintenance, the lack of documentation leads to high costs of reverse engineering. Generally, design-pattern is a reusable solution to a commonly occurring problem in software design. If design-patterns could be captured and reused in reverse engineering, the reverse engineering would be very helpful those who develops and maintains software. So there have been many attempts to detect design-patterns...
In ubiquitous environments, which involve an even greater number of computing devices, with more informal modes of operation, this type of problem have rather serious consequences. In order to solve these problems when they arise, effective reliable systems are required. Also, system management is changing from a conventional central administration, to autonomic computing. However, most existing research...
Semantic Web Recommender Systems is more complex than traditional Recommender System in that it raises many new issues such as user profiling, navigation pattern. Semantic Web based Recommender Service aims at combining the two fastdeveloping research areas Semantic Web and User XQuery. Nevertheless, as the number of web pages increases rapidity, the problem of the information overload becomes increasingly...
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