Euromicro Newsletter最新文献

{"title":"Introduction from Session Chair: Component Models for Dependable Systems","authors":"M. Chaudron, J. Muskens","doi":"10.1109/EURMIC.2004.1333423","DOIUrl":"https://doi.org/10.1109/EURMIC.2004.1333423","url":null,"abstract":"This session introduces 8 papers in the area of component models for depenable systems. These papers are grouped into 3 themes.","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73191726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction from Session Chairs: New Challenges in Media Security","authors":"J. Dittmann, C. Vielhauer","doi":"10.1109/EURMIC.2004.1333401","DOIUrl":"https://doi.org/10.1109/EURMIC.2004.1333401","url":null,"abstract":"Regarding security particularly in the field of multimedia, the requirements on security increase. If and in which way security mechanisms can be applied to multimedia data and their applications needs to be analysed for each purpose separately. This is mainly due to the structure and complexity of multimedia. Based on the main issues of IT-security, the special session introduces selected important security requirements, which must be fulfilled by today's multimedia systems. Our session consists of four papers in this area.","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88716696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mobile Adventure - Towards 4Generation Mobile System","authors":"H. Berndt","doi":"10.1109/EURMIC.2004.1333349","DOIUrl":"https://doi.org/10.1109/EURMIC.2004.1333349","url":null,"abstract":"In the past, generations of mobile systems were often characterized according to their radio interface. Consequently most of the discussions today regarding beyond 3G systems are focusing on wireless transmission technologies. However future Systems that are targeted at solutions towards 4th generation mobile systems are expected to provide advances in a much broader sense. In particular they are aiming at two goals: Firstly seamless end to end connectivity with high capacity and predictable quality of service parameters and secondly a multitude of substantially enhanced new services that are tailored to customer needs. Seamless connectivity hereby will not only encompass heterogeneous access networks as we see them emerging today, it will more importantly expand networks to reach out for a mobileubiquitous networking environment, integrating cellular networks and an ubiquitous computing environment. Seamless connectivity can be achieved through composition of networks, including VAN, PAN, BAN etc. as well as sensor networks and others in a wireless ad-hoc manner. This new mobile-ubiquitous environment will be the foundation for providing services to users (corporate as well as individual end-users) that are unprecedented in scale and intensity and need careful filtering and considerations of consumer preferences in order to be manageable by and meaningful for the customer. The successful leap to the next generation will strongly be influenced by new ways of providing semantically enhanced rich services and applications and equally important by new methods of presenting them to the user. With the complexity of services increasing – 4G customers will have access to a huge variety of services and a multitude of offerings to combine them – it seems easy to predict a growing market for solutions that are aiming at assisting the customer. That will include as a key concept context-aware dynamic adaptation of service offerings, thus providing services to the user according to his current contextual conditions. Since difficulties in using and accessing new and complex services have been reasons for slow service adoption in the past, one key factor for operators to succeed commercially is to unburden the user by providing services that are deeply personalized. Personalization is regarded to be one of the most compelling features for future mobile communication systems. It will allow for supporting customers in discovering specific services from a diversity of mobile service offerings, and provide user support for intuitive service access. Operators can adjust selected services to the users’ individual needs by utilizing usage patterns and proactive service selection mechanism. The deep personalization not only promises to strengthen the relationship between the customer and the operator it also gives room for implementation of novel business models thus encouraging third parties to enter the attractive market of personal service provisioning. Even more f","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75506015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction from the Session Chair: Advances in Web Computing","authors":"Konrad Klöckner","doi":"10.1109/EUROMICRO.2004.10000","DOIUrl":"https://doi.org/10.1109/EUROMICRO.2004.10000","url":null,"abstract":"We are facing a new era of workgroup computing. As local and wide-area networking technologies become more sophisticated, distributed group working is a wellsuited scenario for computer use and presents theoretical and practical problems that have not been thoroughly addressed in computer science research. Communication facilities on the World Wide Web play a key role in the design and implementation of distributed systems for cooperation purposes. Internet communication facilities allow processes to be spread over the Web to communicate and to access remote resources. Performance of the whole distributed system, in particular a distributed workflow and communication system, depends on this facility. In the field of Computer Supported Cooperative Work (CSCW) several concepts and prototypes for the flexible support of cooperation including functionality for the exchange of information, sharing of information, coordination and collaboration among distributed workgroups have been developed. CSCW research has yielded a number of Web based systems for the support of community work. Systems like shared document spaces, shared applications, and workflow systems are on the market now. These applications support primarily work processes, that are pre-planned, or that involve well-defined, closed, and small groups of people. These don’t support communities, i.e. often loosely coupled groups of people sharing a common interest or task. It seems to be crucial to recognize immediately what has happened in the community in order to determine the participants’ further actions. Communities gather and process knowledge collaboratively over the computer network. This session aims to bring together experts from academia and industry who share an interest in the study and design of effective Web computing solutions as well as approaches and methodologies. It focusses on understanding the impact of Web computing environments in order to facilitate the design of complex cooperation systems. This session is an opportunity for designers and researchers to discuss their experiences with implementing cooperative systems on the Web in large organizations such as industry, government and academia. It is open for sharing information about new Web technologies and practices. In this session we have three papers dealing with various advances of Web computing. The first paper “Formally designing Web Services for Mobile Team Collaboration” is by Pascal Fenkam and Schahram Dustdar. It illustrates the symbolic relationship between existing model oriented specification techniques and web services. This paper attempts to introduce web services into an existing system platform. “GEMLCA: Grid Execution Management for Legacy Code Architecture Design” by Thierry Delaitre et al. is the title of the second paper. The computational Grid aims to facilitate flexible, secure and coordinated resource sharing between participating systems and its components have to work together seamlessly. In ","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87380179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Runtime Management of Quality Specification for QoS-Aware Components","authors":"M. D. Miguel, M. T. Higuera-Toledano","doi":"10.1109/EURMIC.2004.1333359","DOIUrl":"https://doi.org/10.1109/EURMIC.2004.1333359","url":null,"abstract":"","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82903810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction from Session Chair - Multimedia and Telecommunications Track Session: P2P Content Distribution and Internet Telephony","authors":"A. Mauthe","doi":"10.1109/EURMIC.2003.1231584","DOIUrl":"https://doi.org/10.1109/EURMIC.2003.1231584","url":null,"abstract":"Multimedia communication has moved beyond the stage of transmitting audio and video over data communications links. Two clear trends can be observed, viz. communication is becoming more specific (e.g. a certain type of communications such as video on demand or telephony has to be supported), and new mechanisms to distribute content (such as peer-to-peer communication technologies) are now being researched. This shows that multimedia communication has reached a certain degree of maturity. It is becoming an intrinsic part of many systems and not individual, isolated aspects are the main focus, rather the work is carried out in a specific context. Content (as representative of the multimedia theme) on the one hand is part of this; the technologies (such as peer-to-peer and Voice over IP) are part of the other group of environmental parameters. This session introduces three papers in this area. The first paper, “Design of a Distributed P2P-based Content Management Middleware” by David Hausheer and Burkhard Stiller, introduces a middleware that has been designed considering the specific requirements of content management. The second paper, entitled “Distributed Replica Placement Algorithms for Peer-to-Peer Content Distribution Networks” by Tim Wauters, Jan Coppens, Thijs Lambrecht, Bart Dhoedt, Piet Demeester addresses an interesting problem in the context of peer-to-peer communication and content distribution, viz. the improvement of the availability of specific content objects in a peer-to-peer infrastructure. The last paper is dealing with a specific multimedia communication topic, i.e. Internet telephony. In particular it addresses the problem of delay that can seriously inhibit the communication if it is uncontrolled or becomes too large. The paper is called “Sicsophone: A Low-Delay Internet Telephony Tool” and was authored by Olof Hagsand, Ian Marsh and Kjell Hanson. This session discusses interesting and divers topics and is dealing with challenging state-of-the-art issues regarding multimedia communication technology.","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73711720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction from Session Chair","authors":"M. Zink","doi":"10.1109/EURMIC.2003.1231588","DOIUrl":"https://doi.org/10.1109/EURMIC.2003.1231588","url":null,"abstract":"There is a vast amount of existing digitised video data and each day new digitised content is created. But simply encoding video data in one of the existing formats (e.g., MPEG-X or H.263) is not sufficient to fully support applications that make use of video content. Video processing is a very useful mechanism to support application like content management, content creation, or even video surveillance. The latter is a good example to demonstrate the importance of video processing. A video surveillance application can create a large amount of video data. Analysing this large amount of data manually is very time consuming. Thus, applications that perform content recognition automatically are necessary to allow an efficient data analysis. Another example is an automated annotation of video data supported by video processing. These annotations can, e.g., be used for data retrieval. Unfortunately, existing mechanisms are still not mature enough to make use of them in commercial applications. In this session two new mechanisms for video processing are presented. The first paper presents an approach on the recognition of textural regions for colour video analysis. Results show that the presented mechanism has an accuracy from 90% to 97% and, thus, can be applied in multimedia applications as a colour texture recognition system. The second paper presents a new method for feature extraction of 3D object based on Wavelet Transform. An experiment shows that the feature extraction method generates feature vectors which uniquely describe 3D objects.","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89074008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction from Session Chair - Multimedia and Telecommunications Track Session: Content Caching","authors":"U. Roedig","doi":"10.1109/EURMIC.2003.1231594","DOIUrl":"https://doi.org/10.1109/EURMIC.2003.1231594","url":null,"abstract":"Utz Roedig Mobile & Internet Systems Laboratory (MISL) University College Cork College Road, Cork, Ireland utz@cs.ucc.ie Computer networks are used today in daily life and we notice that these networks and the applications are used for communication advance. For example the use of wireless networks increases, leading to a more heterogeneous network structure. Applications process more time critical content like stock information or videos leading to quality of service needs (QoS) which have to be fulfilled by the network. It has been always the goal to design efficient networks or to optimize existing ones. Especially today an efficient (cost-effective) design respectively usage of a network is of particular importance. To create efficient networks, various methods can be used. One wellknown method used for network optimisation regarding bandwidth usage or response times is the usage of content caches and cache infrastructures. To be able to use this method in future networks it has to be adjusted to the constraints of the underlying communication networks. In this session new ideas are presented that will allow the usage of caches in future networks. The first paper by Pablo Rodriguez, Ernst W. Biersack and Keith W. Ross is entitled \"Automated Delivery of Web Documents Through a Caching Infrastructure\". The paper deals with the problem of ensuring cache consistency for frequently changing web documents. In the paper different mechanisms to implement an automated delivery of document updates to provide strong consistency are proposed and compared. The second paper by Hayat Kara and Christopher Edwards with the title \"A Caching Architecture for Content Delivery to Mobile Devices\" presents a new caching architecture that can deal with mobile users in the network. Within the paper also an implementation of the proposed architecture is described. The last paper \"Polishing: A Technique to Reduce Variations in Cached Layer Encoded Video\" by Michael Zink, Oliver Heckmann, Jens Schmitt and Ralf Steinmetz describes a caching technique for layered encoded videos that allows to improve the perceptual quality of the video for the clients. The results described in the papers of this session will help to deploy caching techniques efficiently in future networks.","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79743375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Introduction from the session chair","authors":"Konrad Klöckner","doi":"10.1109/EURMIC.2003.1231579","DOIUrl":"https://doi.org/10.1109/EURMIC.2003.1231579","url":null,"abstract":"In today’s competitive world the quality of Web usage is a key to economic success and stability. And we are facing a new era of workgroup computing. Communication facilities on the World Wide Web play a key role in the design and implementation of distributed systems for cooperation purposes. Internet communication facilities allow processes to be spread over the Web to communicate and to access remote resources. Performance of the whole distributed system, in particular a distributed workflow and communication system, depends on this facility. One of the quite new application areas on the Web is Computer Supported Cooperative Work (CSCW). In the field of CSCW several concepts and prototypes for the flexible support of cooperation including functionality for the exchange of information, sharing of information, coordination and collaboration among distributed workgroups have been developed. Since the 1990s the wide-spread use of the Internet and other technology on top of it offer the developers both a great technological basis with various strengths such as location transparency, operating transparency, standardized protocols, standardized data formats, etc. This session aims to bring together experts from academia and industry who share an interest in the study and design of effective Web computing solutions as well as approaches and methodologies. It focuses on understanding the impact of Web computing environments in order to facilitate the design of complex cooperation systems. This session is an opportunity for designers and researchers to discuss their experiences with implementing cooperative systems on the Web in large organizations such as industry, government and academia. It is open for sharing information about new Web technologies and practices. In this session we have four papers dealing with the various aspects of Web computing. The first paper by Stefan Jaksch, Stefan Pfennigschmidt, Kurt Sandkuhl, and Christoph Thiel is entitled “Information Logistic Applications for Information-on-Demand Scenarios: Concepts and Experiences from WIND Project”. This paper presents an information logistical framework and a scalable event-reaction mechanism as part of this framework. This seems to be a well fitting basis for the rapid development of information-on-demand solutions for other application areas. The second paper “A Web-Based Isosurface Extraction System for Heterogeneous Clients” by Andrea Clematis, Daniele D'Agostino, and Vittoria Gianuzzi deals with a practical approach to the design of a Web system for 3D and volumetric data integration and visualization. The integration of Internet technologies and computer graphics here permits to develop a satisfactory solution to this problem field. The third paper “Cooperative Agent-Supported Learning with WeLearn” is by Michael Sonntag and Susanne Loidl-Reisinger. This paper presents some reasons and methodology for integrating agents into online learning platforms and discusses the importanc","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77096919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Package-Based Software Development","authors":"M. Jonge","doi":"10.1109/EURMIC.2003.1231570","DOIUrl":"https://doi.org/10.1109/EURMIC.2003.1231570","url":null,"abstract":"The main goal of component-based software engineering is to decrease development time and development costs of software systems, by reusing prefabricated building blocks. Here we focus on software reuse within the implementation of such component-based applications, and on the corresponding software development process. As it turns out, achieving effective reuse practice between the components of a single application and between the components of multiple applications has serious effects on the complexity of the software development process. While software reuse demands for separation (of reusable blocks), the software development process demands for integration. Consequently, achieving optimal software reuse practice and an efficient development process are goals that seem hard to unite. Here we discuss how these goals can be combined. We propose techniques that promote fine-grained software reuse across system, group, and institute boundaries, as well as integrated development of component compositions. We describe these techniques and demonstrates how they can be used in practice.","PeriodicalId":100495,"journal":{"name":"Euromicro Newsletter","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83617261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}