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Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)最新文献

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Value system redesign 价值体系重新设计
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707472
B. Katzy, Vincent Obozinski
{"title":"Value system redesign","authors":"B. Katzy, Vincent Obozinski","doi":"10.1109/DEXA.1998.707472","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707472","url":null,"abstract":"Business process re-engineering (BPR) is a methodology that originates from implementing enhanced information technology to streamline business performance. Not only can the efficiency of existing business processes be improved, but also have entirely new business processes and even entirely new business come into reach through information technology. Thus, BPR has become a major organizational and strategic challenge. In this paper we will therefore address the question, how enterprises can benefit, how they can create value from the emerging information society by enhanced BPR. For this purpose we will set the scene by describing the competitive background. We will then focus on the spanning of boundaries, synergy among management functions and the idea of platforms as three important implications of the process concept. Value System Redesign (VSR) is presented as a methodology that builds on these implications of the process concept and provides systematical support to gain competitive advantage new in business opportunities. We will present VSR as an approach that is under development in the TELEflow project.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"24 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127645131","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}
引用次数: 15
A thesaurus for improving information retrieval in an integrated legal expert system 一个在综合法律专家系统中改进信息检索的同义词典
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707467
A. Cammelli, Fiorenza Socci
{"title":"A thesaurus for improving information retrieval in an integrated legal expert system","authors":"A. Cammelli, Fiorenza Socci","doi":"10.1109/DEXA.1998.707467","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707467","url":null,"abstract":"This paper presents a critical analysis of a legal expert system architecture, focusing the knowledge representation that represents the most important step in the construction of a modern legal information system. After a long period of experience, we can speak of global systems, because the formalized system knowledge is only a part of system data that may be improved to the user also from a periferic data bases. The new legal systems are tools that can offer information for decision aid and user consulting from different modules and also they offer a sophisticated information retrieval founded, for instance, upon hypertext models or thesauri.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114508607","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}
引用次数: 6
Expressing dynamics of mobile agent systems using ambient calculus 用环境演算表示移动智能体系统的动力学
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707436
P. Stañski, A. Zaslavsky
{"title":"Expressing dynamics of mobile agent systems using ambient calculus","authors":"P. Stañski, A. Zaslavsky","doi":"10.1109/DEXA.1998.707436","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707436","url":null,"abstract":"The mobile agent approach has become popular due to recent developments in the mobile code paradigm and enabling programming technologies. Many existing agent-based systems lack clear standards and rely upon their own approaches and solutions to challenging research problems. Additionally, this rapid evolution has been poorly supported with formal methods. Ambient calculus has been recently proposed as a theoretical framework for distributed and mobile objects/agents. This paper analyses ambient calculus and how it may be used to model the mobility of software objects. A number of extensions to this framework are also proposed to describe various components within a mobile agent system.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127924384","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}
引用次数: 4
Event processing in mobile and active database systems using broadcasts 使用广播的移动和活动数据库系统中的事件处理
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707434
Stefan Sauer, O. Zukunft
{"title":"Event processing in mobile and active database systems using broadcasts","authors":"Stefan Sauer, O. Zukunft","doi":"10.1109/DEXA.1998.707434","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707434","url":null,"abstract":"The integration of active database technology into mobile database systems allows one to limit the transfer of data between mobile computers and the stationary network. In order to employ such active database mechanisms, the rule processing component of traditional active database systems needs to be modified. The paper introduces a new model for event processing and presents a new algorithm for the composition of complex events in a mobile database environment. Furthermore, the model also takes into account the possibility of broadcast data. To validate the feasibility of the model, a prototype has been built using object oriented technology.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133825489","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}
引用次数: 0
Practical experiences with materialized views in a very large data store for telecommunication service management 在电信服务管理的大型数据存储中使用物化视图的实践经验
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707509
Wijnand Derks, W. Jonker
{"title":"Practical experiences with materialized views in a very large data store for telecommunication service management","authors":"Wijnand Derks, W. Jonker","doi":"10.1109/DEXA.1998.707509","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707509","url":null,"abstract":"This paper presents our enhancements to the work of Harinarayan (1996) on the use of materialized views for query execution speed-up. The enhancements were developed when trying to apply the basic approach in a real-life situation on a very large data store with a complex multidimensional model of 18 million views. Our contributions are an extension of the basic model, the development of an efficient implementation, and a heuristic for view size estimation. In addition, we experimented with different cost functions and validated our enhancements in actual experiments. The paper shows that the approach of Harinarayan (augmented with our enhancements) is applicable in practical situations with large view lattices.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133668000","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}
引用次数: 2
A view on components 组件视图
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707494
N. Lassing, D. Rijsenbrij, H. Vliet
{"title":"A view on components","authors":"N. Lassing, D. Rijsenbrij, H. Vliet","doi":"10.1109/DEXA.1998.707494","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707494","url":null,"abstract":"Components are nowadays considered the next step in information system development. Components are assumed to foster reuse and flexibility and to reduce the complexity of distributed deployment. This paper investigates the properties of components that determine whether the above goals are met. To that end, we explored the literature and had a number of interviews with representatives from tool vendors, tool users and software houses. The resulting views are summarized in this paper and applied to a small example. In our further research, the architecture sketched in this example will be worked out in further detail and compared with the architecture of similar systems found in industry. This will deepen our understanding and assessment of the architectural choices made.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"199 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131691738","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}
引用次数: 6
A real world implementation of answer extraction 答案抽取的真实世界实现
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707394
Diego Mollá Aliod, J. Berri, Michael Hess
{"title":"A real world implementation of answer extraction","authors":"Diego Mollá Aliod, J. Berri, Michael Hess","doi":"10.1109/DEXA.1998.707394","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707394","url":null,"abstract":"We describe ExtrAns, an answer extraction system. Answer extraction (AE) aims at retrieving those exact passages of a document that directly answer a given user question. AE is more ambitious than information retrieval and information extraction in that the retrieval results are phrases, not entire documents, and in that the queries may be arbitrarily specific. It is less ambitious than full-fledged question answering in that the answers are not generated from a knowledge base but looked up in the text of documents. The current version of ExtrAns is able to parse unedited Unix \"man pages\", and derive the logical form of their sentences. User queries are also translated into logical forms. A theorem prover then retrieves the relevant phrases, which are presented through selective highlighting in their context.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133903946","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}
引用次数: 35
End-to-end QoS architecture for continuous media services 连续媒体服务的端到端QoS架构
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707445
K. Hashimoto, J. Sato, Y. Kohsaka, Y. Shibata, N. Shiratori
{"title":"End-to-end QoS architecture for continuous media services","authors":"K. Hashimoto, J. Sato, Y. Kohsaka, Y. Shibata, N. Shiratori","doi":"10.1109/DEXA.1998.707445","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707445","url":null,"abstract":"In order to realize multimedia applications such as VOD (Video-on-Demand) over highspeed networks, suitable QoS (Quality of Service) of the continuous media such as audio and video have to be guaranteed in accordance with users' requirements, available computing and network resources during the service session. In this paper, we introduce the Media Coordinate System which provides end-to-end QoS guarantee and negotiation functions consistently from the application through network layers. Within these QoS control functions we introduce a packet rate control method to reduce the packet loss, and a frame rate control method to maintain the frame rate at a constant under the dynamic load conditions. We implemented the media coordinate system as a prototyped Video-on-Demand system and evaluated the performance of these control functions. Through these performance evaluations, we could justify the usefulness of our suggested media coordinate system.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129648687","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}
引用次数: 12
Verification of multiple agent knowledge-based systems 多智能体知识系统的验证
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707377
D. O’Leary
{"title":"Verification of multiple agent knowledge-based systems","authors":"D. O’Leary","doi":"10.1109/DEXA.1998.707377","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707377","url":null,"abstract":"The purpose of the paper is to extend verification tests to systems with multiple autonomous agent knowledge bases. In particular, the paper focuses on those unique inter-agent anomalies that are generated as we go from single agent systems to multiple agent systems. For example, consider one agent with the rule \"if A then B\" and a rule in another agent \"if A then C\". In such a setting, the agents would be constantly at odds. Alternatively we might find the following rules in one agent (\"if A then B\" and \"if C then A\"), while another agent that interacts with that agent might have the rule (\"if B then C\"). With those two interacting rule bases a dialogue starting with \"A\" could cycle indefinitely. One potential approach to multiple agent systems is to compare the knowledge base of each subset of agents to determine the existence verification issues. Where the number of agents is small, this approach is feasible. However, for even medium size systems this approach explodes computationally. As a result, there is a need for alternative approaches. The paper finds that many of the multiple agent verification tests can be conducted on a meta rule set generated from all the rules contained in each of the agents' knowledge bases thus minimizing computational effort. In addition, the paper finds that the property of agent \"isolation\" is an important verification criteria in multiple agent systems.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133276105","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}
引用次数: 8
Integrating information extraction into workflow management systems 将信息提取集成到工作流管理系统中
Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130) Pub Date : 1998-08-26 DOI: 10.1109/DEXA.1998.707393
Claudia Wenzel
{"title":"Integrating information extraction into workflow management systems","authors":"Claudia Wenzel","doi":"10.1109/DEXA.1998.707393","DOIUrl":"https://doi.org/10.1109/DEXA.1998.707393","url":null,"abstract":"Workflow management systems (WFMS) provide solutions for office process organization by utilizing corporate databases and coupling them with business processes. However, they are lacking mechanisms for an automatic integration of informal process information. A bridge for this gap may be offered by information extraction systems which find relevant chunks of information nested in large texts. We describe an approach for the textual analysis of informal paper documents and the automatic paper integration into a WFMS. A synergetic effect is achieved because information extraction profits from additional data provided by the WFMS and vice versa.","PeriodicalId":194923,"journal":{"name":"Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132628016","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}
引用次数: 14
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