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Development of distance recognition using an ocellus camera for an autonomous personal robot

Development of distance recognition using an ocellus camera ...

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作者： Kinoshita, Tomoyuki Hayashi, Eiji Department of Mechanical Information Science and Technology Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka-City Fukuoka Prefecture Japan

ISBN: (纸本)9784990288020

We are attempting to develop an autonomous personal robot that has the ability to perform practical tasks in a human living environment by using information derived from sensors. When a robot operates in a human environment, the issue of safety must be considered in regard to its autonomous movement. Thus, robots absolutely require systems that can recognize the external world and perform correct driving control. We have thus developed a navigation system for an autonomous robot. The system requires only image data captured by an ocellus CCD camera. In this system, we allow the robot to search for obstacles present on the floor. Then, the robot obtains distance recognition necessary for evasion of the object, including data of the obstacle's width, height, and depth by calculating the angles of images taken by the CCD camera. We applied the system to a robot in an indoor environment and evaluated its performance, and we consider the resulting problems in the discussion of our experimental results. ©ISAROB 2008.

关键词： Robots

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Development of an autonomous-drive personal robot: An object recognition system using a database

Development of an autonomous-drive personal robot: An object...

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作者： Moritaka, Yuki Hayashi, Eiji Department of Mechanical Information Science and Technology Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka City Fukuoka Prefecture Japan

ISBN: (纸本)9784990288020

We are developing an autonomous personal robot with the ability to perform practical tasks in a human environment based on information derived from image sensors and a knowledge database. In its adjustment to a human environment, it is very important for the robot to identify specific objects. We have thus developed an object recognition system that allows the autonomous robot to identify objects within its environment. The system requires only image data captured by an ocellus CCD camera. This object recognition system is composed of a shape recognition system and a color recognition system. In the shape recognition system, an object is identified based on its distinctive shape. The color recognition system identifies the object based on its color information. Here we explain the algorithm used for the object search and the method for processing images. In addition we describe the result of an experiment done to evaluate the system as it performed an object search. ©ISAROB 2008.

关键词： Object recognition

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A rule-based approach for availability of Web service

A rule-based approach for availability of Web service

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IEEE International Conference on Web Services, ICWS 2008

作者： Liang, Qianhui Althea Lam, Herman Narupiyakul, Lalita Hung, Patrick C.K. School of Information Systems Singapore Management University Singapore Singapore Department of Electrical and Computer Engineering University of Florida United States Faculty of Business and IT University of Ontario Institute of Technology Canada

ISBN: (纸本)9780769533100

Sustainable success of service oriented applications relies on capabilities to manage possible service failures. To substitute a failed service with some other equivalent service is unavoidable in recovering a suspended application due to failure of a constituent service. In this paper, we report a rule-based approach to Web service substitution in order to secure availability of services. Availability provides delivery assurance for each Web service so that Simple Object Access Protocol (SOAP) messages cannot be lost undetectably, especially in a Web service composition. The rides are written in Semantic Web Rule Language. The rules are a formal representation of a categorization-based scheme to identify exchangeable Web services. This scheme not only tackles the issue of heterogeneity of domain ontology in describing the Web services, it also adapts itself by learning newly discovered ontology instances. A technical framework of Web service substitution using rule based deduction is demonstrated. Experiments on service substitution based on the proposed framework achieve a best precision of 85%. © 2008 IEEE.

关键词： Web services

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A new algorithm for the classification of earthquake damages in structures

A new algorithm for the classification of earthquake damages...

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5th IASTED International Conference on Signal Processing, Pattern Recognition, and Applications, SPPRA 2008

作者： Alvanitopoulos, P. Andreadis, I. Elenas, A. Laboratory of Electronics Section of Electronics and Information Systems Technology Department of Electrical and Computer Engineering Democritus University of Thrace GR - 67100 Xanthi Greece Institute of Structural Mechanics and Earthquake Engineering Department of Civil Engineering Democritus University of Thrace GR - 67100 Xanthi Greece

ISBN: (纸本)9780889867178

It is well-known that the natural phenomenon of an earthquake is unpredictable both in time and intensity. Consequently, the damages on human constructions produced by an earthquake are also unpredictable. The aim of this paper is to classify the structural and architectural damages suffered after an earthquake. The interest is obvious for several reasons such as public safety, economical recourses management, infrastructure and urban planning. In this paper a new classification method based on artificial neural networks is proposed. A set of 200 accelerograms were used. Two artificial neural networks, one for each type of damages, have been proposed. The neural network is a Back Propagation one with a supervised learning scheme for the training process. Correct classification rates up to 94.5% and 93.5% for the structural and architectural damages, respectively, are achieved.

关键词： Neural networks

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Achieving compelling student comprehension of complex information structures for both on-site and on-line courses

Achieving compelling student comprehension of complex inform...

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2008 ASEE Annual Conference and Exposition

作者： Uhlig, Ronald Farahani, Alireza Viswanathan, Shekar Evans, Howard Sotelo, Mark National University Department of Computer Science and Information Systems School of Engineering and Technology National University Wireless Communications for the Master ot Science in Wireless Communications Program International Telecommunications Academy School of Engineering and Technology Department of Applied Engineering Lead Faculty for Engineering Management and Homeland Security and Safety Engineering Academic Computing for National University

Teaching engineering and technology subjects involves conveying understanding of abstract information structures and processes such as complex telecommunications protocols, complex mathematical concepts, and data structures. These are multidimensional and can be difficult to grasp quickly. Supported by a Hewlett-Packard (HP) technology for Teaching grant, the School of engineering and technology at National University has embarked on a project to enable students to grasp these complex concepts more quickly and easily, using continuous dialog among students and instructors as the structures are first introduced and then examined from multiple perspectives through real-time interaction among students, small groups, and instructors. HP Wireless Tablet PCs are used to discuss and experiment with diagrams and processes in realtime. This allows combining lectures and problem-solving sessions into a single class session. Our hypothesis is that: 1) an in-depth learning of theory is accomplished, and 2) student engagement is enhanced. Presentation of theory by the instructor is integrated with application while the theory is still in the student's short-term memory. Students no longer have to wait for a separate session such as a recitation session to apply the concepts. This approach often takes less time. In addition to accelerating the learning process, expert instructors find this approach more rewarding as students grasp new concepts more quickly. Analysis of data captured from both students and instructors are presented to support our hypotheses, and our results are compared with similar research carried out by other universities. In addition, the level of interaction enabled by the use of HP Tablets in on-line classes is discussed. The best teaching tools available in existing on-line teaching platforms are compared with the additional tools available in on-site courses when every student has a wireless Tablet PC and specific recommendations are made to on-line teachi

关键词： Students

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A Comparative Evaluation of State-of-the-Art Approaches for Web Service Composition

A Comparative Evaluation of State-of-the-Art Approaches for ...

引用

International Conference on Software engineering Advances (ICSEA)

作者： Sayed Gholam Hassan Tabatabaei Wan Mohd Nasir Wan Kadir Suhaimi Ibrahim Department of Software Engineering Faculty of Computer Science and Information Systems University of Technology Joho Malaysia

In today's Web environment, many enterprises decide to implement and publish their applications on the Internet using Web services technology. In many cases, a single service is not sufficient to fulfill the user's request. To solve this problem, services should be combined together. Therefore, composition of Web services is one of the recent critical issues. A number of approaches have been presented, to tackle this problem. In this paper, we categorize these approaches into four categories (workflow-based, AI-planning based, syntactic-based, and semantic-based). Then, we compare these approaches based on some criteria (like QoS, scalability, and correctness). Investigation of that classification will help researchers who are working on service composition to deliver more applicable solutions.

关键词： Web services Software engineering Web and internet services computer science information systems Turing machines Application software Scalability Software systems Software design

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Evaluating a Mobile Emergency Response System

Evaluating a Mobile Emergency Response System

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14th International Workshop of Groupware

作者： Sapateiro, Claudio Antunes, Pedro Zurita, Gustavo Vogt, Rodrigo Baloian, Nelson Systems and Informatics Department Superior School of Technology Polytechnic Institute of Setúbal Portugal Department of Informatics Faculty of Sciences University of Lisbon Portugal Management Control and Information Systems Department Business School Universidad de Chile Chile Computer Science Department Engineering School Universidad de Chile Chile

ISBN: (纸本)9783540928300

Existing information systems often lack support to crisis and emergency situations. In such scenarios, the involved actors often engage in ad hoc collaborations necessary to understand and respond to the emerging events. We propose a collaboration model and a prototype aiming to improve the consistency and effectiveness of emergent work activities. Our approach defends the requirement to construct shared situation awareness (SA). To support SA, we developed a collaborative artifact named situation matrixes (SM), which relates different situation dimensions (SD) of the crisis/emergency scenario. A method was also developed to construct and evaluate concrete SM and SD. This method was applied in two organizations' IT service desk teams, which often have to deal with emergency situations. The target organizations found our approach very relevant in organizing their response to emergencies.

关键词： Emergency services

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An evaluation of current approaches for Web service composition

An evaluation of current approaches for Web service composit...

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International Symposium on information technology, ITSim

Since many organizations recently decide to implement and publish their applications over Internet, the number of Web services has dramatically increased. In many cases, a single service is not sufficient to respond to the user’s request. In order to tackle this problem, services have to be combined together. Therefore, composition of Web services is one of the recent critical issues. Several approaches have been presented, to tackle this problem. In this paper, we classify these approaches into four categories namely Workflow-based, AI-planning based, Syntactic-based, and Ontology-based. Then, we describe and compare these approaches using some criteria (like QoS, scalability, and correctness). The overall results indicate that some AI-planning and Ontology based approaches like HTN-DL and WSMO satisfy most of the criteria.

关键词： Web services Planning Ontologies Calculus OWL Semantic web Protocols

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Semantic Web Service Discovery and Composition Based on AI Planning and Web Service Modeling Ontology

Semantic Web Service Discovery and Composition Based on AI P...

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IEEE Asia-Pacific Conference on Services Computing (APSCC)

Web services are the preferred standards-based way to realize service oriented architecture (SOA) computing. A problem that has become one of the recent critical issues is automated composition of Web services. A number of approaches have been proposed to resolve the problem. However, discovery and composition of Web services have been neglected by majority of those approaches. In this paper, we propose an approach called AIMO, based on AI-planning and Web service modeling ontology (WSMO), which are adapted and extended to tackle the mentioned problem. Moreover, we propose a translator to provide interaction between WSMO and AI-planning. We start with presenting the AIMO architecture which shows all components of the proposed approach. Finally, a simple case study is designed to test some components of AIMO. The preliminary results of the test demonstrate that our approach provides an applicable solution.

关键词： Semantic Web Artificial intelligence Web services Ontologies Service oriented architecture Testing Process planning Software systems XML Software engineering

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A method of reliability assessment based on deterministic chaos theory for an open source software

A method of reliability assessment based on deterministic ch...

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2nd IEEE International Conference on Secure System Integration and Reliability Improvement, SSIRI 2008

作者： Tamura, Yoshinobu Yamada, Shigeru Department of Computer Science Faculty of Applied Information Science Hiroshima Institute of Technology Miyake 2-1-1 Saeki-ku Hiroshima-shi 731-5193 Japan Department of Social Systems Engineering Faculty of Engineering Tottori University Minami 4-101 Koyama Tottori-shi 680-8552 Japan

ISBN: (纸本)9780769532660

Open source software which serve as key components of critical infrastructures in the social life are still ever-expanding now. We focus on the quality problems of open source software developed under open source project. In case of considering the effect of the debugging process in the development of a method of reliability assessment for open source project, it is necessary to grasp the deeply-intertwined factors, such as programming path, size of each component, skill of fault reporters, and so on. Considering from a point of view of the software reliability growth model, it is difficult to cover the software fault-report phenomena on the bug tracking system of open source software. We propose a new approach to software reliability assessment based on deterministic chaos theory. Also, we analyze actual software fault count data to show numerical examples of software reliability assessment for the open source software. © 2008 IEEE.

关键词： Open source software

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