Proceedings. 13th International Workshop on Database and Expert Systems Applications最新文献

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Tailoring text using topic words: Selection and compression 使用主题词裁剪文本:选择和压缩
T. Euler
{"title":"Tailoring text using topic words: Selection and compression","authors":"T. Euler","doi":"10.1109/DEXA.2002.1045901","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1045901","url":null,"abstract":"In the context of unified messaging, a textual message may have to be reduced in length for display on certain mobile devices. This paper presents a new method to extract sentences: that deal with a certain topic from a given text. The approach is based on automatically computed lists of words that represent the desired topics. These word lists also give semantic hints on how to shorten sentences, extending previous methods that rely on syntactical clues only. The method has been evaluated for extraction accuracy and by human subjects for informativeness of the resulting extracts.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"341 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115170777","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: 13
Domain-independent enegotiation design: prospects, methods, and challenges 领域独立谈判设计:前景、方法和挑战
Dirk Neumann, Christof Weinhardt
{"title":"Domain-independent enegotiation design: prospects, methods, and challenges","authors":"Dirk Neumann, Christof Weinhardt","doi":"10.1109/DEXA.2002.1045977","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1045977","url":null,"abstract":"Designing electronic markets is still a rather intricate process. eNegotiation - and thereby trading rules - embody the core of the institution \"electronic market\". Although success or failure of electronic markets is strongly influenced by the design of the trading rules the design process currently constitutes a trial-and-error game. It is only partly guided by theory and by all available evidence, but it also uses ad-hoc methods to resolve issues about which theory is silent. Consequently, this paper suggests a conceptual framework for domain-independent eNegotiation design. The core of the framework is described by an expertise model which divides knowledge into three categories: domain, task and inference knowledge. The main contribution of this expertise model is twofold. Firstly; it can guide the further acquisition of knowledge. Secondly, a knowledge based system that could be built upon this model renders reproducible designs. In case the expertise model is sufficiently well formed the system can be used to perform - if not the entire design process - at least the step of preanalysis. This developed expertise model is deemed promising to turn the trial-and-error game of market design from a question of arts more to an engineering approach.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123267804","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: 7
Using preference order in ontologies 在本体中使用优先顺序
S. Heymans, D. Vermeir
{"title":"Using preference order in ontologies","authors":"S. Heymans, D. Vermeir","doi":"10.1109/DEXA.2002.1045881","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1045881","url":null,"abstract":"The latest ontology languages can be translated into a description logic (DL), thus providing them with a formal semantics and associated reasoning procedures. We introduce the ordered description logic OSHOQ(D) as a simple decidable extension of SHOQ(D) that supports the direct definition of a preference order on defeasible axioms, thus allowing for a succinct and intuitive expression of defeasible ontologies, containing e.g. exceptions for certain axioms. We demonstrate the usefulness of OSHOQ(D) for solving inconsistencies that may appear e.g. when merging existing ontologies. We present an algorithm that, based on concrete examples of facts that should be true, produces minimal preference orderings on the axioms, in order to make an otherwise inconsistent knowledge base consistent.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123451765","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: 5
Middleware for mobile information access 用于移动信息访问的中间件
D. Chakraborty, F. Perich, A. Joshi, Timothy W. Finin, Y. Yesha
{"title":"Middleware for mobile information access","authors":"D. Chakraborty, F. Perich, A. Joshi, Timothy W. Finin, Y. Yesha","doi":"10.1109/DEXA.2002.1045984","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1045984","url":null,"abstract":"Mobile information access involves retrieving information from wired service providers. Often there are situations where the information is not available from a single service provider but can be obtained by combining information from multiple service providers. It is inefficient and sometimes impossible for a resource poor mobile device connected over a low bandwidth wireless link to coordinate such activity. In this paper, we describe middleware to support this mode of access from resource poor mobile devices that takes into consideration mobility, resource constraints and service heterogeneity.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116251857","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
Balancing conciseness, readability and salience in generated text 平衡生成文本的简洁性、可读性和显著性
Bruce Eddy, A. Cawsey
{"title":"Balancing conciseness, readability and salience in generated text","authors":"Bruce Eddy, A. Cawsey","doi":"10.1109/DEXA.2002.1045904","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1045904","url":null,"abstract":"In this paper we present an architecture for generating texts that vary in the emphasis put on conciseness, readability and the marking of particularly salient items. We abandon the traditional pipeline architecture, and use an integrated approach which makes the search for an optimum text explicit, taking into account both inter-sentential and intra-sentential features. This approach can be used in generating paragraph length texts, optimised against various criteria.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"219 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122050942","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
Global Campus: learning to walk with webbed feet 全球校园:学会用蹼脚走路
Christina Sadler, W. M. Bakry, P. Chera, S. Hatzipanagos, M. Milankovic-Atkinson, A. Murphy
{"title":"Global Campus: learning to walk with webbed feet","authors":"Christina Sadler, W. M. Bakry, P. Chera, S. Hatzipanagos, M. Milankovic-Atkinson, A. Murphy","doi":"10.1109/DEXA.2002.1045925","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1045925","url":null,"abstract":"Universities wishing to expand their provision beyond their local catchment areas need to consider whether to bring the students to the tuition or take the tuition to the students. Current-day educational and information technologies make the latter option a much more achievable prospect than it has been in the past. Nevertheless, careful consideration needs to be given to the nature of the distance-learning students' learning experiences and the extent to which these may be comparable with those of the local students. These matters are considered in this paper against the background of the Global Campus project whereby Middlesex University's School of Computing Science sought to take its initial steps in distance-learning provision.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"376 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122766389","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: 7
An environment for mobile context-based hypermedia retrieval 基于上下文的移动超媒体检索环境
J. Carswell, A. Eustace, K. Gardiner, E. Kilfeather, Marco Neumann
{"title":"An environment for mobile context-based hypermedia retrieval","authors":"J. Carswell, A. Eustace, K. Gardiner, E. Kilfeather, Marco Neumann","doi":"10.1109/DEXA.2002.1045952","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1045952","url":null,"abstract":"This paper proposes a novel solution to querying hyperlinked multimedia cultural heritage datasets based on the user's context. Context in this sense is defined as the user's location in virtual space and the particular mobile device being modeled together with user preferences or profile. The purpose is to automatically push relevant data from the database server to the client based on this comprehensive definition of the user's context. Consideration in regard to which mobile device is currently being modeled is a primary filter for determining what data will be sent and in what format. For example, image data will not be sent to a mobile phone and video will not be sent to a PDA. The CHI (Cultural Heritage Interfaces) project differs from many of the models encountered on the Web in that its primary focus is not the accurate 3D rendering of a street/landscape, but the simulation of such a physical reality to explore the adaptive hypermedia paradigm in the context of a spatial navigation interface.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126084503","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: 20
Interpreting XML documents via an RDF schema ontology 通过RDF模式本体解释XML文档
M. Klein
{"title":"Interpreting XML documents via an RDF schema ontology","authors":"M. Klein","doi":"10.1109/DEXA.2002.1046008","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1046008","url":null,"abstract":"Many business documents are represented in XML. However XML only describes the structure of data, not its meaning. The meaning of data is required for advanced automated processing, as is envisaged in the \"Semantic Web\". Ontologies are often used to describe the meaning of data items. Many ontology languages, however, depend on the RDF data model and cannot describe XML data directly. This paper presents a procedure that can be used to turn XML documents into RDF statements via an RDF schema specification. This allows semantic annotation of XML documents via external RDF schema ontologies. This procedure makes the data in XML documents available for the Semantic Web.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130557950","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: 87
Product classification integration for E-commerce 面向电子商务的产品分类集成
S. Bergamaschi, F. Guerra, M. Vincini
{"title":"Product classification integration for E-commerce","authors":"S. Bergamaschi, F. Guerra, M. Vincini","doi":"10.1109/DEXA.2002.1046004","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1046004","url":null,"abstract":"A marketplace is the place where the demand and supply of buyers and vendors participating in a business process may meet. Therefore, electronic marketplaces are virtual communities in which buyers may meet proposals of several suppliers and make the best choice. In the electronic commerce world, the comparison between different products is blocked due to the lack of standards (on the contrary, the proliferation of standards) describing and classifying them. Therefore, the need for B2B and B2C marketplaces is to reclassify products and goods according to different standardization models. This paper aims to face this problem by suggesting the use of a semi-automatic methodology to define a mapping among different E-commerce product classification standards. This methodology is an extension of the MOMIS system, a mediator system developed within the intelligent integration of information research area.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132000646","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: 13
User-centric portals for managed learning environments 用于托管学习环境的以用户为中心的门户
Bin Ling, C. Allison
{"title":"User-centric portals for managed learning environments","authors":"Bin Ling, C. Allison","doi":"10.1109/DEXA.2002.1045929","DOIUrl":"https://doi.org/10.1109/DEXA.2002.1045929","url":null,"abstract":"There is a growing concern throughout higher education that the gap between what university central services traditionally provide and what academics currently need is widening. Members of both the administrative staff and the academic community (staff and students) are finding that the performance of routine tasks is becoming increasingly difficult due to the nature of their institution's information systems. These systems have evolved in an ad hoc basis and are usually comprised of multiple unconnected data repositories. Users are often prevented from carrying out work by inappropriate access control mechanisms and the lack of appropriate client software. There are broadly two approaches to addressing this problem. One is the \"big bang\", where all existing systems are replaced simultaneously with a new single centralised system. Before such an approach can be taken it is necessary to fully understand the dynamics of an institutions information systems, in order to specify the new, all encompassing system. This is a major task in itself. An alternative, more attractive, approach is to integrate existing systems using user-centric portals. This is the objective of the INSIDE project, which is piloting value-added services based on distributed information bases, in order to further the development and delivery of a \"joined up system\" for an institution.","PeriodicalId":254550,"journal":{"name":"Proceedings. 13th International Workshop on Database and Expert Systems Applications","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129336263","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
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