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Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems最新文献

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Retrieval of one-dimensional data 检索一维数据
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614060
H. Jonsson, D. Badal
{"title":"Retrieval of one-dimensional data","authors":"H. Jonsson, D. Badal","doi":"10.1109/BIWIT.1997.614060","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614060","url":null,"abstract":"This paper describes our work in-progress on a new automatic indexing technique for large one-dimensional (1D) or time-series data. The principal idea of the proposed time-series data indexing method is to encode the shape of time-series into an alphabet of characters and then to treat them as text. As far as we know this is a novel approach to 1D data indexing. In this paper we report our preliminary results in using the proposed 1D indexing method for retrieval of 1D data by its content.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124674551","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
Towards maintaining integrity of federated databases 致力于维护联邦数据库的完整性
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614055
C. Turker, Stefan Conrad
{"title":"Towards maintaining integrity of federated databases","authors":"C. Turker, Stefan Conrad","doi":"10.1109/BIWIT.1997.614055","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614055","url":null,"abstract":"Supporting integrity constraints is essential for database systems. In consequence, global integrity constraints must be dealt with by federated database systems. Although a lot of work has been done on transaction management in multidatabase systems, the treatment of semantic integrity constraints (e.g. uniqueness conditions), especially detecting (potential) violations and specifying necessary reactions, is often omitted. In this paper, we propose a very flexible way to realize global integrity maintenance in federated database systems. We aim at integrating the active rule paradigm into a federated database framework. Thereby, integrity constraints involving multiple component database systems can easily be supported. Active rules provide a powerful mechanism for communication and cooperation between heterogeneous database systems. In addition, they are to be used for specifying enforcement of constraints in case of violation. For enforcing constraints the existing local mechanisms (e.g. triggers) of the component database systems can be employed. In case this is not possible, an additional layer has to be introduced which realizes the active rule mechanism for the component database system.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128754122","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
Knowledge discovery in relational database: extraction of n-ary relationships 关系数据库中的知识发现:n元关系的提取
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614050
C. Soutou
{"title":"Knowledge discovery in relational database: extraction of n-ary relationships","authors":"C. Soutou","doi":"10.1109/BIWIT.1997.614050","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614050","url":null,"abstract":"Presents an automatic process for extracting the n-ary relationships from an operating relational database. This database reverse engineering process performs (i) the extraction of n-ary relationship tables, and (ii) the deduction of cardinalities. The first step is based on querying a view of the data dictionary and some working tables. The second step is based on the automatic generation of a set of SQL queries for each n-ary relationship table. We focus on the realistic assumptions that there are no constraints on the uniqueness of the attribute names, and dependencies are not supposed to be known a priori. A PRO*C program has been implemented; it enables us to automatically build SQL queries via dynamic SQL. We also study the influence of the number of key attributes and the number of records upon the performance of our process.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"540 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124267255","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: 3
"Design Warehouse": a "data warehouse" for computer aided design “设计仓库”:用于计算机辅助设计的“数据仓库”
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614067
P. Laureri, G. Mopolo Moke
{"title":"\"Design Warehouse\": a \"data warehouse\" for computer aided design","authors":"P. Laureri, G. Mopolo Moke","doi":"10.1109/BIWIT.1997.614067","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614067","url":null,"abstract":"This paper describes a new information system concept for CAD, called Design Warehouse. It is inspired from the data warehouse model of W.H. Inmon (1995, 1996). This new concept is the result of an operational application using an object-oriented database in a spatial industrial context. We present the application, BAGHERA, that inspired this concept, and which replies on the need to conserve the know-how of an enterprise. BAGHERA realizes the storage and organisation of all the data produced during the design phase of a satellite and facilitates database navigation with suitable methods and tools. The assessment of the object-oriented database, O/sub 2/, that is the data storage management component of BAGHERA is detailed. Research problems that are raised by this new kind of application are discussed.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122196605","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
Design of U-Doc: a research vehicle for hyper document retrieval on the Internet U-Doc:一种互联网超文档检索研究工具的设计
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614056
Liming Luke Chen, P. Faudemay, D. Donsez
{"title":"Design of U-Doc: a research vehicle for hyper document retrieval on the Internet","authors":"Liming Luke Chen, P. Faudemay, D. Donsez","doi":"10.1109/BIWIT.1997.614056","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614056","url":null,"abstract":"In this article we present the UDOC architecture, which describes a thematic mirror based on the filtering of composite documents on the Internet or on others large networks. The main innovations of the paper concern the integration of filtering methods for images, sounds and videos, the research by concepts independent of the media, the concept of thematic mirror and the placement in tertiary memory. The disposition of new technical means for multimedia document indexation will allow a more massive utilization of these documents, which is currently limited on large networks. Our approach will be validated by a true magnitude experimentation. Prototyping is currently under way.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127326577","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: 3
Semantic structuring of documents 文档的语义结构
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614058
L. Poullet, Jean-Marie Pinon, S. Calabretto
{"title":"Semantic structuring of documents","authors":"L. Poullet, Jean-Marie Pinon, S. Calabretto","doi":"10.1109/BIWIT.1997.614058","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614058","url":null,"abstract":"This paper presents a formal model for an explicit description of the semantic structure which implicitly exists with documents. This model relies on content meaning description of document elements. Meaning representation is distributed in the overall architecture model: it binds a semantic structure, a logical structure of documents and a domain model. The semantic structure contains two levels of description: meaning representation of information units. The description logic formalism is used to represent semantics of document elements and document rhetorical organisation. This paper shows how semantic structuring of documents can be efficiently defined using SGML syntax. Using this documents structuring norm, one can define two levels of description: generic semantic structure (vs. Document Type Definition) and specific semantic structure (vs. instantiated document) in order to define an abstract interface to the information stored in documents. The medical patient record has been presented as a relevant example for handling semantic structured documents.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133261222","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: 26
GOQL, a graphical query language for object-oriented database systems GOQL，面向对象数据库系统的图形查询语言
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614049
E. Keramopoulos
{"title":"GOQL, a graphical query language for object-oriented database systems","authors":"E. Keramopoulos","doi":"10.1109/BIWIT.1997.614049","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614049","url":null,"abstract":"In this paper, we present GOQL (Graphical Object Query Language). GOQL provides a user-friendly graphical interface to support ad-hoc queries for object-oriented database applications. Such queries are translated into standard OQL queries. In this paper, we illustrate the use and expressiveness of GOQL using an example, and briefly survey similar work and developments in the market and in the literature.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132249344","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: 19
Specifying navigational structures by querying hypermedia design models 通过查询超媒体设计模型指定导航结构
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614059
A. Díaz, S. Gordillo, G. Rossi
{"title":"Specifying navigational structures by querying hypermedia design models","authors":"A. Díaz, S. Gordillo, G. Rossi","doi":"10.1109/BIWIT.1997.614059","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614059","url":null,"abstract":"In this paper we explore the use of queries in hypermedia applications. We discuss how to build high level navigational structures by using an object-oriented query language, in the context of the object-oriented hypermedia design method (OOHDM). We first discuss the OOHDM and its impact on hypermedia design; next, we motivate the use of queries in hypermedia applications as a way to partially solve the orientation problem. We later discuss how to use the query language to generate navigational structures; a real application is used to show the scope of our approach.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"6 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127399597","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
Creation and content-based retrieval in a radiological documentary record 放射文献记录的创建和基于内容的检索
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614057
A. Tchounikine
{"title":"Creation and content-based retrieval in a radiological documentary record","authors":"A. Tchounikine","doi":"10.1109/BIWIT.1997.614057","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614057","url":null,"abstract":"We present a data model for managing a medical documentary record. The multimedia documents handle various type of information: medical images (X-rays, MRI, tomography...), data on the patient's civil and clinic identity, and examination reports. A retrieval process must answer to queries involving both the explicit alphanumeric data stored in the patient's dossier and information that are carried by the images. Content-based retrieval of medical pictures cannot be solved with a matching process based on image analysis. Thus we propose a data model for describing the semantic content of a medical picture. The image is viewed as pairs of isosemantic regions and signals in respect of an anatomic and a pathological model. This description is used to index the pictorial part of the medical record. A graphical interface is provided for the users to index the images and formulate the queries.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130343060","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
Value based identification and functional dependencies for object databases 对象数据库的基于值的标识和功能依赖关系
Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems Pub Date : 1997-07-02 DOI: 10.1109/BIWIT.1997.614048
H. Klein, J. Rasch
{"title":"Value based identification and functional dependencies for object databases","authors":"H. Klein, J. Rasch","doi":"10.1109/BIWIT.1997.614048","DOIUrl":"https://doi.org/10.1109/BIWIT.1997.614048","url":null,"abstract":"Object identification by abstract identifiers should be considered as a modeling and not as a database concept. This means that object identifiers are not appropriate for the access to specific objects using a database language. In this paper, we discuss how the relational concept of a functional dependency can be adapted to object databases in order to get more convenient ways of fetching objects. Object functional dependencies are proposed allowing the determination of value-based identification criteria. For these constraints, different definitions of satisfiability are given based on a so-called validation relation. These definitions are related to different forms of identification.","PeriodicalId":166034,"journal":{"name":"Proceedings of the Third Basque International Workshop on Information Technology - BIWIT'97 - Data Management Systems","volume":"21 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126047235","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
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