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Scientific and Statistical Database Systems, 1996. Proceedings., Eighth International Conference on

Date 18-20 June 1996

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Displaying Results 1 - 25 of 28
  • Proceedings of 8th International Conference on Scientific and Statistical Data Base Management

    Publication Year: 1996
    Request permission for commercial reuse | PDF file iconPDF (416 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 1996
    Request permission for commercial reuse | PDF file iconPDF (54 KB)
    Freely Available from IEEE
  • Data and information architectures for large-scale distributed data intensive information systems

    Publication Year: 1996, Page(s):226 - 233
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    The Earth Observing System (EOS) Data and Information System (EOSDIS) is perhaps one of the most important examples of large-scale, geographically distributed, and data intensive systems. The paper presents various facets of a data and information architecture for EOSDIS. EOS data is organized by means of an object-oriented schema, while EOS knowledge is organized through multiple domain-specific ... View full abstract»

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  • The design and implementation of a database for human genome research

    Publication Year: 1996, Page(s):220 - 225
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    The Human Genome Project poses severe challenges in database design and implementation. These include comprehensive coverage of diverse data domains and user constituencies; robustness in the presence of incomplete, inconsistent and multi-version data; accessibility through many levels of abstraction, and scalability in content and organizational complexity. The paper presents a new data model dev... View full abstract»

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  • A data structure for representing aggregate data

    Publication Year: 1996, Page(s):22 - 31
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (820 KB)

    Aggregate data are obtained by applying statistical aggregations and statistical analysis functions over raw data. We believe that a major adherence of aggregate data to the process that generates them can make their modeling simpler and more effective. We propose a formal description of the aggregation process and derive from this description a data structure for the representation of aggregate d... View full abstract»

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  • Requirements and design of replication services for a time series management system

    Publication Year: 1996, Page(s):208 - 215
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    The paper analyzes how financial researchers manage large numbers of time series and how they work with these data. The authors show that replication services are a central facility of a time series management system and define the requirements for such replication services. An evaluation of current time series management systems shows that they do not support replication. Neither replication syst... View full abstract»

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  • FROG and TURTLE: visual bridges between files and object-oriented data

    Publication Year: 1996, Page(s):76 - 85
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (960 KB)

    The problem of translating database objects into a flat format to be written out in a flat Ascii file or, conversely, translating the contents of a file into a complex database object arises in several applications. It is especially important in scientific database applications, where file-based communication with external programs (e.g., visualization packages or model simulations) is very common... View full abstract»

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  • Using the functional data model to integrate distributed biological data sources

    Publication Year: 1996, Page(s):176 - 185
    Cited by:  Papers (3)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (968 KB)

    There is unavoidable heterogeneity in the databanks and databases currently used for biological data collections. The authors are aiming to develop a system that will provide uniform access to heterogeneous databases via a single high-level query language or graphical interface and will enable multi-database queries. They have taken an approach in which high-level code in an object-oriented databa... View full abstract»

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  • A scientific multimedia database system for polymer science experiments

    Publication Year: 1996, Page(s):86 - 95
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    This paper describes SciMMDB, a scientific multimedia database system designed for polymer science experiment data applications. SciMMDB maintains multimedia data types of video, test and picture (as well as other standard data types), and allows users to: form multimedia presentation streams about experiments; define a presentation which organizes a number of presentation streams for playout purp... View full abstract»

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  • Extendible arrays for statistical databases and OLAP applications

    Publication Year: 1996, Page(s):108 - 117
    Cited by:  Papers (9)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    Online analytical processing (OLAP) is becoming increasingly important as today's organizations frequently make business decisions based on statistical analysis of their enterprise data. This data is multidimensional and is derived from transactional data using various levels of aggregation. As the business model changes frequently, the multidimensional arrays must be extended in terms of the valu... View full abstract»

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  • Conceptual data model with structured objects for statistical databases

    Publication Year: 1996, Page(s):168 - 175
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    We present a conceptual data model, called SDM, which is able to represent the relationships between elementary and statistical data at a conceptual level. SDM borrows elements from research both in object oriented databases and in knowledge representation. In addition it has suitable mechanisms to form classes of individuals by classifying the instances of a target class according to some specifi... View full abstract»

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  • Sequence matching of images

    Publication Year: 1996, Page(s):53 - 62
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (924 KB)

    We propose an inter-sequence matching method for exact and similarity matching of image sequences. Our method transforms the image sequence matching problem into matching sequences of real numbers. The method does not require sequences to be of the same length. It uses a modified version of the longest common sequence (LCS) method for actually matching two sequences. We also propose a feature-base... View full abstract»

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  • Efficient temporal join processing using time index

    Publication Year: 1996, Page(s):252 - 261
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB)

    Time is an attribute of all real-world phenomena and many real-world database applications naturally involve time-varying information. As in traditional databases, joins are the most important and costly operators in temporal databases. Hence, efficient processing strategies for temporal joins are needed. The Entity Join operation is used to group temporal attributes of an entity into a single rel... View full abstract»

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  • Data mining: machine learning, statistics, and databases

    Publication Year: 1996, Page(s):2 - 9
    Cited by:  Papers (11)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    Knowledge discovery in databases and data mining aim at semiautomatic tools for the analysis of large data sets. We give an overview of the area and present some of the research issues, especially from the database angle View full abstract»

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  • Extracting and providing knowledge within an object-centered scientific information system for atmospheric research

    Publication Year: 1996, Page(s):198 - 207
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (868 KB)

    The paper deals with an object-centered scientific information system for the extraction and preparation of scientific knowledge. A knowledge representation system (KRS) based on description logics (DL) is considered to be the basis for the construction of a terminological knowledge base. It is based on a conceptual description schema defined for the metadata needed in order to provide explanation... View full abstract»

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  • Astronomical tables, 2-D indexing, and fuzzy-joins

    Publication Year: 1996, Page(s):44 - 52
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (692 KB)

    Tabular datasets of up to 109 rows can be produced by high-energy telescopes which return the properties of every detected photon. Catalogues of celestial objects are also simple tabular datasets which are starting to reach comparable sizes and present similar problems. The operations to be performed on such tables can often be described in relational database terms, but in practice spe... View full abstract»

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  • Quality aspects of a modern database service

    Publication Year: 1996, Page(s):156 - 161
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    This paper briefly reviews Statistics Sweden's statistical databases with an emphasis on quality issues, the role that metadata play, the documentation system and its ancillary templates. Statistics Sweden's agency-wide policy for quality in surveys is outlined and the main characteristics of the agency-wide quality declarations are cited. The paper concludes with some general statements about met... View full abstract»

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  • Optimizing statistical queries by exploiting orthogonality and interval properties of grouping relations

    Publication Year: 1996, Page(s):118 - 127
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (888 KB)

    A statistical query first manipulates source category data to build a target category in the form of a grouping relation and then performs statistical functions on the associated measurement data. In this paper, the attributes in a grouping relation are partitioned into pair-wise disjoint sets, each called a dimension. A grouping relation is said to be orthogonal if it is equal to the cross produc... View full abstract»

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  • Censoring statistical tables to protect sensitive information: easy and hard problems

    Publication Year: 1996, Page(s):12 - 21
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    Protecting sensitive information in a two-dimensional table asked for by a statistical user of a database raises computational problems involving both the query system which should guarantee the data security, and the user who should be able to disclose sensitive data when it is unprotected. We provide a quadratic algorithm which allows the query system to test a censored table for security, and a... View full abstract»

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  • What clinical database management system does the NHS need?

    Publication Year: 1996, Page(s):162 - 166
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    This discussion paper revisits the problem of the structure of the electronic patient record (EPR). It argues that by linking the design of the EPR to other legitimate data management activities in healthcare, such as accounting and administration, to provide a corporate database, serious compromises have been introduced into the EPR. These compromises do not allow the clinical data to be stored i... View full abstract»

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  • Persistent array access using server-directed I/O

    Publication Year: 1996, Page(s):98 - 107
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1080 KB)

    Large multidimensional arrays are a common data type in high-performance scientific applications. Without special techniques for handling access to these arrays, I/O can easily become a large fraction of execution time for applications using these arrays, especially on parallel platforms. We show how to reduce the parallel I/O bottleneck for array data in closely-synchronized SPMD applications on ... View full abstract»

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  • Statistical dependencies

    Publication Year: 1996, Page(s):32 - 41
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    In a database where numeric data has been obtained by inaccurate methods (measurements, calculations involving error propagation) it is unlikely to have equal stored values for a single, repeatedly measured/calculated value. As a result, instances which should satisfy but actually “nearly” satisfy a functional dependency cannot be decomposed. For such cases, we introduce the notion of ... View full abstract»

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  • Approximate query answering in numerical databases

    Publication Year: 1996, Page(s):63 - 73
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (880 KB)

    This work addresses the problem of efficient processing of queries in very large numerical databases. Previous focus has been on the design of index structures for the efficient access of data. Recently more and more statistical methods have been used in query optimization. Those methods approximate the distribution of the attribute values to estimate the selectivity of query results. A methodolog... View full abstract»

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  • Design principles for a unified statistical data/metadata system

    Publication Year: 1996, Page(s):150 - 155
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    This paper discusses a design proposal for a unified statistical data and metadata system at the U.S. Bureau of the Census and the principles guiding that design. Many statistical agencies have begun to disseminate their data via the Internet. All the major program areas within the Bureau of the Census have begun Internet data dissemination projects. If each data dissemination system is developed ... View full abstract»

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  • Reuse of high-level information requests: leveraging the investment

    Publication Year: 1996, Page(s):186 - 195
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (884 KB)

    Vertical information management (VIM) is a term coined to describe a particular set of information management activities. These activities support decision makers working within various levels of a management hierarchy, who seek information from potentially large, distributed heterogeneous, and federated information sources. Decision makers usually require information beyond what is stored. Yet, t... View full abstract»

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