By Topic

Database Engineering and Applications Symposium, 1997. IDEAS '97. Proceedings., International

Date 25-27 Aug. 1997

Filter Results

Displaying Results 1 - 25 of 45
  • Proceedings Ideas'97 International Database Engineering And Applications Symposium

    Publication Year: 1997 , Page(s): iii - vii
    Save to Project icon | Request Permissions | PDF file iconPDF (269 KB)  
    Freely Available from IEEE
  • Proceedings of the 1997 International Database Engineering and Applications Symposium (Cat. No.97TB100166)

    Publication Year: 1997
    Save to Project icon | Request Permissions | PDF file iconPDF (1221 KB)  
    Freely Available from IEEE
  • Author index

    Publication Year: 1997 , Page(s): 403
    Save to Project icon | Request Permissions | PDF file iconPDF (92 KB)  
    Freely Available from IEEE
  • Modeling a faster data warehouse

    Publication Year: 1997 , Page(s): 260 - 265
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (584 KB)  

    One key area involved in implementing the data warehouse is the transfer of information from the Source Databases (SDBs) into the data warehouse and making it available to the user. In looking at the overall intent of the data warehouse as a repository for vast amounts of diverse information, changes made to the SDBs, can be critical to the correctness of the query responses provided by the wareho... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Spatial similarity-based retrievals and image indexing by hierarchical decomposition

    Publication Year: 1997 , Page(s): 269 - 278
    Cited by:  Papers (3)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (768 KB)  

    For efficient search and spatial similarity based retrieval of image contents, the paper introduces a new symbolic image representation and indexing technique. In this technique, an image is recursively decomposed into a spatial arrangement of feature points while preserving the spatial relationships among its various component. Quadtrees are used to manage the decomposition hierarchy and help in ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An analysis of database rules

    Publication Year: 1997 , Page(s): 113 - 117
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (516 KB)  

    Maintaining the integrity of the knowledge represented within database rules is a complex business. In order to analyse the maintenance of integrity, a uniform framework for the representation of both data and database rules is introduced. A conceptual model is constructed using this uniform framework. The maintenance of the integrity of this conceptual model is analysed. In particular a generalis... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A case study for the management of a set of spectrally analysed signals based on OODBMS

    Publication Year: 1997 , Page(s): 121 - 125
    Cited by:  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (328 KB)  

    The paper is a case study for the management of a set of synthetic harmonic and real-world sampled signals analysed by various spectral methods at some desired orders. An OODBMS schema was preferred to an alternative RDBMS, exploiting the specific advantages of the object oriented-approach (direct correspondence between real-world and database objects, inheritance, transparent modularity-extendabi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A fast transformation method to semantic query optimisation

    Publication Year: 1997 , Page(s): 319 - 326
    Cited by:  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (588 KB)  

    Semantic query optimisation is a comparatively recent approach for the transformation of a given query into equivalent alternative queries using matching rules in order to select an optimum query based on the costs of executing these alternative queries. The most important aspect of this optimisation approach is that this resultant query can be processed more efficiently than the original query. T... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Advanced database functions for distance education system: VIEW Classroom

    Publication Year: 1997 , Page(s): 231 - 239
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (712 KB)  

    We have been developing an important application of distributed systems: a distance education system called VIEW Classroom. Conventional distance education systems use video images of teachers and selected students when required. From its initial stages, this system has taken a non-video base (although video function can be utilized) and tried to use database technology extensively in order to ass... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A visual query interface for a customisable schema visualisation system

    Publication Year: 1997 , Page(s): 23 - 32
    Cited by:  Patents (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1008 KB)  

    Resolving different levels of heterogeneity present in heterogeneous database environments is a subject that has been addressed in a number of research projects. Graphical user interfaces are becoming the de-facto form of user interface in many application areas, including database management systems. The use of a popular visualisation notation to present schemas at an abstract level and to permit... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Interfacing online bibliographic databases with Z39.50

    Publication Year: 1997 , Page(s): 379 - 387
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (832 KB)  

    Many online databases are available on the Internet, each one with its own access procedures and a special user interface and query language. The Z39.50 protocol standard offers a solution to this situation of diversity and lacking interoperability. However the majority of online databases do not yet support Z39.50. We describe a system that interfaces online bibliographic databases with Z39.50 cl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A uniform approach for selecting views and indexes in a data warehouse

    Publication Year: 1997 , Page(s): 151 - 160
    Cited by:  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (932 KB)  

    Careful selection of aggregate views and some of their most used indexes to materialize in a data warehouse reduces the warehouse query response time as well as warehouse maintenance cost under some storage space constraint. Data warehouses collect and store large amounts of integrated enterprise data from a number of independent data sources over a long period of time. Warehouse data are used for... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Efficient processing of spatial selection and join operations using SB+-tree

    Publication Year: 1997 , Page(s): 279 - 288
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (764 KB)  

    Introduces a spatial access method, the SB+-tree, that is based on the B+-tree structure. For each axis of the space, a set of indexing points is generated; an indexing point is created whenever a new minimum bounding rectilinear rectangle (MBR) begins or ends. These indexing points are then used to create an SB+-tree. We present algorithms using an SB+-... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Database support for conflict detection in a computer-supported cooperative work environment

    Publication Year: 1997 , Page(s): 240 - 249
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1040 KB)  

    Computer supported cooperative work (CSCW) requires the simultaneous consideration of a huge diversity of issues regarding a given object under design. Successful support for CSCW requires a conceptually integrated environment that can address this diversity of issues and assist with the detection and resolution of conflicts among design constraints and decisions. The Automated Constraint Refineme... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A generalized storage model for tertiary storage based systems

    Publication Year: 1997 , Page(s): 161 - 170
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (756 KB)  

    Most of the research in the area of database query optimization has dealt with data that is either in main memory or on disk. Lately there has been growing interest in making tertiary memory part of an information system. The authors propose a model for a generic storage system and generic data placement techniques. Such a model provides one with a tool to study query performance and optimization ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An extended inverted file approach for information retrieval

    Publication Year: 1997 , Page(s): 397 - 402
    Cited by:  Papers (2)  |  Patents (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (904 KB)  

    In information retrieval, the way in which the correspondence procedure works is highly important for the performance of the underlying system as a whole. An inverted file ensures quick access to the information items because the index alone is examined, rather than the actual file of items, in order to determine the items which satisfy a search request. This technique was a prominent feature of t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Database system support for multidimensional data analysis in environmental epidemiology

    Publication Year: 1997 , Page(s): 180 - 188
    Cited by:  Papers (1)  |  Patents (12)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (944 KB)  

    The project CARLOS (Cancer Registry Lower-Saxony) aims at novel techniques for analysing cancer clusters using advanced database technology to support multidimensional analysis of spatio-temporal related health data. This requires very advanced support capabilities which can not be provided by existing technology. Therefore, new approaches in the fields of spatio-temporal, multidimensional and sta... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Schema evolution in object databases by catalogs

    Publication Year: 1997 , Page(s): 368 - 376
    Cited by:  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (788 KB)  

    We are concerned with schema evolution in object oriented databases (OODB) that is processed by a modification of the classes of the schema. We present a new categorization of the different modifications in three categories: primitive, composite and complex modifications. On this basis, we propose a method by decomposition for addressing conceptual schema evolution: “real-life” complex... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • OFEM: an approach towards detection and reduction of objectives inconsistencies

    Publication Year: 1997 , Page(s): 250 - 259
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (960 KB)  

    The importance of improving understanding and communication between users and system developers in order to develop a structured description of the business, its information system needs and objectives through enterprise modelling approaches, has been increasingly recognized. Many enterprise modelling schemas are yielded to represent the different dimensions of the enterprise and different user vi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Exception-handling extension for an object-oriented DBMS

    Publication Year: 1997 , Page(s): 138 - 143
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (540 KB)  

    The paper describes the implementation of an exception handling facility for the Open OODB, a research database system developed by Texas Instruments. The initial OODB database has been extended and modified to support exception handling. An extended exception handling model was designed and implemented which fits into the existing Open OODB architecture and computation model View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Indexing non-uniform spatial data

    Publication Year: 1997 , Page(s): 289 - 298
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (924 KB)  

    Non-uniformity in data extents is a general characteristic of spatial data. Indexing such non-uniform data using conventional spatial index structures such as R*-trees is inefficient for two reasons: (1) the non-uniformity increases the likelihood of overlapping index entries, and (2) clustering of non-uniform data is likely to index more dead space than clustering of uniform data. To r... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Bottom-up scientific databases based on sets and their top-down usage

    Publication Year: 1997 , Page(s): 171 - 179
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (788 KB)  

    The paper proposes a data model for a scientific database. Scientific applications require the DBMS support of the discovery process. Unstructured or semi-structured scientific data is required for storage in databases, and manipulation as structured data. To meet these requirements, the proposed data model has the following features. It is based on the concept of sets in order that a database has... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Query processing in the ROL system

    Publication Year: 1997 , Page(s): 327 - 336
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (868 KB)  

    The ROL system is a novel deductive object-oriented database system that has been implemented at the University of Regina. It provides a uniform rule-based declarative language for defining, manipulating and querying databases, which integrates important features of deductive databases and object-oriented databases. It supports object identity, complex objects, classes, class hierarchies, multiple... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Web-based animator for validating object specifications

    Publication Year: 1997 , Page(s): 211 - 219
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (768 KB)  

    One of the central tasks in developing information systems is the specification of desired system properties. We use the object specification language TROLL light to formalize the conceptual model of a system. A TROLL light specification describes structural as well as dynamic characteristics of objects representing real world entities. For validating specifications, we have developed an animation... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Alternative correctness criteria for multiversion concurrency control and a locking protocol via freezing

    Publication Year: 1997 , Page(s): 73 - 81
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (756 KB)  

    Concurrency control protocols based on multiversions have been used in some commercial transaction processing systems in order to provide the serializable executions of transactions. In the existing protocols, transactions are allowed to read only the most recent version of each data item in order to ensure the correct execution of transactions. However this feature is not desirable in some advanc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.