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Congress on Evolutionary Computation

作者： Hirotaka Yamazaki Ivan Tanev Tomoyuki Hiroyasu Katsunori Shimohara Department of Knowledge Engineering and Computer Sciences Doshisha University Kyoto Japan Department of Information Systems Design Doshisha University Kyoto Japan

We present an approach for automated evolutionary design of the functionary of driving agent, able to operate a software model of fast running car. The objective of our work is to automatically discover a set of driving rules (if existent) that are general enough to be able to adequately control the car in all sections of predefined circuits. In order to evolve an agent with such capabilities, we propose an indirect, generative representation of the driving rules as algebraic functions of the features of the current surroundings of the car. These functions, when evaluated for the current surrounding of the car yield concrete values of the main attributes of the driving style (e.g., straight line velocity, turning velocity, etc.), applied by the agent in the currently negotiated section of the circuit. Experimental results verify both the very existence of the general driving rules and the ability of the employed genetic programming framework to automatically discover them. The evolved driving rules offer a favorable generality, in that a single rule can be successfully applied (i) not only for all the section of a particular circuit, but also (ii) for the sections in several a priori defined circuits featuring different characteristics.

关键词： Integrated circuit modeling Turning Evolution (biology) Software Wheels Evolutionary computation Adaptation model

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Metamodeling for Community Coordinated Multimedia and Experience on Metamodel-Driven Content Annotation Service Prototype

Metamodeling for Community Coordinated Multimedia and Experi...

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Congress on Services - Part II (SERVICES-2)

作者： Jiehan Zhou M. Rautiainen M. Ylianttila M. Foulonneau P. Blandin MediaTeam Information processing laboratoryDepartment of Electrical and Information Engineering University of Oulu Finland Reference modelling / Knowledge systems Centre Henri Tudor Luxembourg Luxembourg

Community Coordinated Multimedia (CCM) provides an extended and enhanced human experience by collaboratively consuming electronic and networked content and multimedia-intensive services. Community coordinated multimedia vision raises the challenges of multimedia content creation, interpretation, exchange, and consumption over a large range of heterogeneous services, terminals and networks. The development of CCM metamodel plays a key role in tackling these challenges by enabling the transparent multimedia aggregation and exchange crossing communities. This paper aims to design and develop the CCM metamodel. A generic terminology for CCM metamodeling is developed. A extensive study on metamodeling activities and metamodeling methodologies is presented. A combined metamodeling approach is proposed for the CCM metamodel development. Experiences and results on the CCM metamodeling and CCM metamodel-driven content annotation prototype are elaborated.

关键词： Metamodeling Prototypes Terminology Multimedia systems knowledge based systems Collaboration Ontologies MPEG 7 Standard Collaborative software Application software

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Experience Co-Creation on Ubiquitous Cultural e-Service Provision: A Case of Taiwan's Hakka Culture

Experience Co-Creation on Ubiquitous Cultural e-Service Prov...

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International Conference on Networked Computing and Advanced information Management (NCM)

作者： Yuan-Chu Hwang Yuan-Chun Hwang Chiu-Hung Su Knowledge Engineering and Discovery Research Institute Auckland University of Technology New Zealand Department of Management Information Systems National Chengchi University Taiwan Department of Information Management National United University Taiwan

This paper proposes a collaborative experience based travel recommendation service for Hakka culture. This service utilizes mobile devices as platform to share and purify the user's knowledge of Hakka culture. By applying TF-IDF conversion on tags that were extracted from users' experience and past knowledge, in this paper we argue that a better recommendation service can be provided compared to the traditional frequency based service. Possible AI approach for utilizing the TF-IDF data is also proposed to improve the service level by using online adaptive clustering algorithm without increasing the resource requirements.

关键词： Cultural differences Mobile handsets Clustering algorithms Collaboration Organizations Global communication Clustering methods

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Easing the Formalization of Clinical Guidelines with a User-tailored, Extensible Agile Model Driven Development (AMDD)

Easing the Formalization of Clinical Guidelines with a User-...

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21st IEEE International Symposium on Computer-Based Medical systems (CBMS 2008)

作者： Patrick Martini Katharina Kaiser Silvia Miksch Institute of Software Technology & Interactive Systems University of Technology Vienna Vienna Austria Department of Information and Knowledge Engineering Danube-University of Krems Krems Austria

Transforming a text-based clinical guideline in a computer-interpretable form is a time-consuming and demanding task due to the various users involved, who have different technical and medical background. In the past, different guideline representation languages and supporting tools have been developed, however, these approaches seldom address the various users' demands and needs in the different steps of the guidelines' life cycle. Our approach is oriented on the guideline life-cycle and takes the requirements and the interactions of the various actors into account to formalize guidelines in a computer-interpretable guideline representation by using a semi-automatic way based on NLP techniques. We analyzed the guideline lifecycle and the roles of the actors to build such a model. This model is prototypical implemented and showed the usefulness and utility for the various users.

关键词： Guidelines Medical services Medical diagnostic imaging Pipelines knowledge engineering Interactive systems Prototypes Quality management Costs Quality assurance

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An independence of causal interactions model for opposing inuences

An independence of causal interactions model for opposing in...

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4th European Workshop on Probabilistic Graphical Models, PGM 2008

作者： Maaskant, Paul P. Druzdzel, Marek J. Department of Media and Knowledge Engineering Delft University of Technology 2628 CD Delft Netherlands Faculty of Computer Science Bia Lystok Technical University Wiejska 45A 15-351 Bia lystok Poland Decision Systems Laboratory School of Information Sciences University of Pittsburgh Pittsburgh PA 15260 United States

We introduce the DeMorgan gate, an Independence of Causal Interactions (ICI) model that is capable of modeling opposing inuences, i.e., a mixture of positive and negative inuences of parents on a child. The model is a noisy version of a conjunctive normal form of Boolean functions and is an extension and a combination of the popular Noisy OR and Noisy-AND models, preserving their intuitive semantics. We report the results of a simple experiment testing the usefulness of the proposed model for elicitation of conditional probability distributions.

关键词： Semantics

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Comparing information Visualization Tools Focusing on the Temporal Dimensions

Comparing Information Visualization Tools Focusing on the Te...

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International Conference on information Visualisation (IV)

作者： Eva Wohlfart Wolfgang Aigner Alessio Bertone Silvia Miksch Institute of Software Technology and Interactive Systems (ISIS) University of Technology Vienna Vienna Austria Department of Information and Knowledge Engineering (ike) Danube-University of Krems Krems Austria

Empirical comparisons and categorizations of information visualization tools lack important considerations: the former undervalue the need for a theoretical background, and the latter tend to have too much distance from the user because they do not consider definite user tasks. Therefore, our work combines these approaches and presents the results of both a qualitative evaluation and a recently published categorization. We focus on the visualization of temporal data and reveal that current tools realize only a small part of the visualization possibilities in this field.

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A room modeling method for 3D video

A room modeling method for 3D video

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2008 International Conference on Parallel and Distributed Processing Techniques and Applications, PDPTA 2008

作者： Isshiki, Aya Sakamoto, Ryuuki Kitahara, Itaru Kogure, Kiyoshi Joe, Kazuki Information and Computer Sciences Department Nara Women's University Nara 630-8506 Japan Department of Computer and Communication Sciences Wakayama University Sakaedani 930 Wakayama Wakayama 640-8510 Japan Department of Intelligent Interaction Technologies Graduate School of Systems and Information Engineering University of Tsukuba Tennoudai 1-1-1 Tsukuba Ibaraki 305-8573 Japan ATR Knowledge Science Laboratories Hikaridai 2-2-2 Keihanna Science City Kyoto 619-0288 Japan

ISBN: (纸本)1601320841

This paper proposes a system to reconstruct the 3D shape model of background regions for generating 3D video easily. As the progress of computer vision technologies continues, many 3D video systems have been developed that tend to focus on automatic 3D reconstruction to capture target (foreground) objects. On the other hand, the 3D shapes of background regions such as walls and floors are generally made manually, for example, using 3D modeling software such as CAD. However, the operation is not easy for novices. Our system provides an easy background modeling method for such users. User operations include segmenting multiple background images into several boxes by indi cating their vertices and giving the correspondence of the boxes between multiple images. As a result, the 3D coordinates of the vertices are calculated using a stereo vision algorithm.

关键词： Stereo vision

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Frameworks for enterprise architecture

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IT Professional 2007年第5期9卷 36-41页

作者： Shah, Hanifa El Kourdi, Mohamed Department of Information Systems Informatics and Knowledge Management Group Britvic Soft Drinks Faculty of Computing Engineering and Technology Staffordshire University

Organizations can use enterprise architecture frameworks, to manage system complexity, integrating business and information technology (IT) resources. Enterprise architecture frameworks also help organizations in overcoming the challenges of increasing the efficiency of IT resources, while enabling them to continue business innovations. IT architectures also influence the integration and standardization requirements of company's operating model, helping it to achieve business efficiency and growth in profitability. Enterprise architecture provides several fundamental benefits that include technological and process infrastructure for developing an IT strategy, while integrating business strategies and implementations. It also allows an organization to view different aspects of the information system from various perspectives.

关键词： Enterprise resource management

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Certification process artifacts defined as measurable units for software assurance

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Software Process Improvement and Practice 2007年第2期12卷 165-189页

作者： Lee, Seok-Won Gandhi, Robin A. Ahn, Gail-Joon Knowledge-Intensive Software Engineering Research Group Department of Software and Information Systems University of North Carolina at Charlotte Charlotte NC 28223 United States

Certification and Accreditation (C&A) process artifacts for software-intensive systems are characterized by the metrics and measures required to be produced from their units of analysis for assessing system behaviour. Software-intensive systems are complex clusters of closely interdependent system of systems that include underlying software, systems, people, processes, and operational environments. Naturally, such systems require carefully designed C&A artifacts that consider metrics and measures from multiple dimensions at different levels of abstraction in the Universe of Discourse (UoD) in order to understand, predict, and control their emergent behaviour. Hence, C&A artifacts defined as measurable units for software assurance should be the result of an aggregated reasoning of evidences from various dimensions, while maintaining traceability and alignment to real world goals/objectives in all stages of the system lifecycle. To address these research objectives, we present a novel integration framework that promotes cohesion and traceability among metrics and measures from multiple dimensions in the problem domain on the basis of the definition of a common language. By applying our framework to automate the department of Defense information Technology Security Certification and Accreditation Process (DITSCAP), we also motivate the design principles and modelling techniques necessary to generalize a course of action to conduct C&A processes with appropriate tool support for software-intensive systems. Copyright © 2006 John Wiley & Sons, Ltd.

关键词： Accreditation

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Clustering moving objects in spatial networks

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12th International Conference on database systems for Advanced Applications

作者： Chen, Jidong Lai, Caifeng Meng, Xiaofeng Xu, Jianliang Hu, Haibo School of Information Renmin University of China Key Laboratory of Data Engineering and Knowledge Engineering MOE Department of Computer Science Hong Kong Baptist University

ISBN: (纸本)9783540717027

Advances in wireless networks and positioning technologies (e.g., CPS) have enabled new data management applications that monitor moving objects. In such new applications, realtime data analysis such as clustering analysis is becoming one of the most important requirements. In this paper, we present the problem of clustering moving objects in spatial networks and propose a unified framework to address this problem. Due to the innate feature of continuously changing positions of moving objects, the clustering results dynamically change. By exploiting the unique features of road networks, our framework first introduces a notion of cluster block (CB) as the underlying clustering unit. We then divide the clustering process into the continuous maintenance of CBs and periodical construction of clusters with different criteria based on CBs. The algorithms for efficiently maintaining and organizing the CBs to construct clusters are proposed. Extensive experimental results show that our clustering framework achieves high efficiency for clustering moving objects in real road networks.

关键词： spatial-temporal databases moving objects clustering spatial networks

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