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Scientific and Statistical Database Management, 1999. Eleventh International Conference on

Date 30-30 July 1999

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Displaying Results 1 - 25 of 38
  • Proceedings. Eleventh International Conference on Scientific and Statistical Database Management

    Publication Year: 1999
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    Freely Available from IEEE
  • 2D+ string: a spatial metadata to reason topological and directional relationships

    Publication Year: 1999, Page(s):112 - 121
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (118 KB)

    Spatial relationships have gained increasing attention in spatial databases. Reasoning spatial relationships is very expensive since it requires massive geometric computations. In particular, reading and comparing information to reason directional and topological relationships can be repeated as they are processed separately in previous works. In order to avoid the repetition and improve the perfo... View full abstract»

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  • Panel: data exchanges and interoperability in distributed earth science information systems

    Publication Year: 1999, Page(s):228 - 229
    Cited by:  Papers (2)
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    Freely Available from IEEE
  • Author index

    Publication Year: 1999, Page(s):286 - 287
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    Freely Available from IEEE
  • Rationale and design of the European Computerized Human Brain Database System

    Publication Year: 1999, Page(s):148 - 157
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    The European Computerized Human Brain Database (ECHBD) is an innovative approach to neuroscience, where state-of-the-art database technology has been utilised for building a system for meta-research. Meta-research here refers to research on 3D brain images, obtained from various neuroimaging techniques. The system is built on top of the RASDAMAN rasterdata manager and the object-oriented DBMS O View full abstract»

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  • An infrastructure for scalable parallel multidimensional analysis

    Publication Year: 1999, Page(s):102 - 111
    Cited by:  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    Multidimensional analysis in online analytical processing (OLAP), and scientific and statistical databases (SSDB) use operations requiring summary information on multidimensional data sets. Most common are aggregate operations along one or more dimensions of numerical data values and/or on hierarchies defined on them. Simultaneous calculation of multidimensional aggregates are provided by the Data... View full abstract»

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  • Query processing in the TAMBIS bioinformatics source integration system

    Publication Year: 1999, Page(s):138 - 147
    Cited by:  Papers (26)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB)

    Conducting bioinformatic analyses involves biologists in expressing requests over a range of highly heterogeneous information sources and software tools. Such activities are laborious, and require detailed knowledge of the data structures and call interfaces of the different sources. The TAMBIS (Transparent Access to Multiple Bioinformatics Information Sources) project seeks to make the diversity ... View full abstract»

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  • Supporting imprecision in multidimensional databases using granularities

    Publication Year: 1999, Page(s):90 - 101
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    Online analytical processing (OLAP) technologies are being used widely, but the lack of effective means of handling data imprecision, which occurs when exact values are not known precisely or are entirely missing, represents a major obstacle in applying these technologies in many domains. The paper develops techniques for handling imprecision that aim to maximally reuse existing OLAP modeling cons... View full abstract»

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  • Remote data access via the SIESIP distributed information system

    Publication Year: 1999
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (24 KB)

    Illustrates a distributed system that provides online searching, analysis and ordering capabilities for distributed Earth science data. The system is under development by a consortium led by George Mason University in a project called Seasonal-to-Interannual Earth Science Information Partners (SIESIP) as a part of a federation of information partners funded by NASA. The integrated system is compos... View full abstract»

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  • Multidimensional indexing and query coordination for tertiary storage management

    Publication Year: 1999, Page(s):214 - 225
    Cited by:  Papers (16)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (108 KB)

    In many scientific domains, experimental devices or simulation programs generate large volumes of data. The volumes of data may reach hundreds of terabytes and therefore it is impractical to store them on disk systems. Rather they are stored on robotic tape systems that are managed by some mass storage system (MSS). A major bottleneck in analyzing the simulated/collected data is the retrieval of s... View full abstract»

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  • Sharing experiences from scientific experiments

    Publication Year: 1999, Page(s):168 - 177
    Cited by:  Papers (2)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (148 KB)

    The ESP2Net project is developing technologies that enable effective collaborative scientific data sharing to support collaboration among scientists, accelerate production of scientific data products, and improve understanding of the science. We have defined a Scientific Experiment Markup Language (SEML) to capture scientific experiments in hypermedia documents as a basic unit of information shari... View full abstract»

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  • How to avoid building DataBlades(R) that know the value of everything and the cost of nothing

    Publication Year: 1999, Page(s):122 - 133
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    The object-relational database management system (ORDBMS) offers many potential benefits for scientific, multimedia and financial applications. However work remains in the integration of domain-specific class libraries into ORDBMS query processing. A major problem is that the standard mechanisms for query selectivity estimation, taken from relational database systems, rely on properties specific t... View full abstract»

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  • Range selectivity estimation for continuous attributes

    Publication Year: 1999, Page(s):244 - 253
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    Many commercial database systems maintain histograms to efficiently estimate query selectivities as part of query optimization. Most work on histogram design is implicitly geared towards discrete or categorical attribute value domains. We consider approaches that are better suited for the continuous valued attributes commonly found in scientific and statistical databases. We propose two methods ba... View full abstract»

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  • PISA: Performance models for Index Structures with and without Aggregated data

    Publication Year: 1999, Page(s):78 - 87
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    Different models to estimate the performance of tree-based index structures exist. Materialized aggregates in the inner nodes of such index structures are used to speed up range queries on aggregates. This is achieved by avoiding traversing the index tree down to the leaves through aggregates precomputed in the inner nodes. None of the existing models deals with these aggregated data. In this pape... View full abstract»

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  • An indexing scheme for fast similarity search in large time series databases

    Publication Year: 1999, Page(s):56 - 67
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    Addresses the problem of similarity searching in large time-series databases. We introduce a novel indexing algorithm that allows faster retrieval. The index is formed by creating bins that contain time series subsequences of approximately the same shape. For each bin, we can quickly calculate a lower bound on the distance between a given query and the most similar element of the bin. This bound a... View full abstract»

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  • The Diamond Eye image mining system

    Publication Year: 1999
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    Diamond Eye is a new image mining system that enables users (scientists) to locate and catalog objects of interest in large image collections. This system provides a platform-independent interface to novel image mining algorithms, as well as to computational and database resources that allow scientists to browse, annotate and search through images and analyze the resulting object catalogs View full abstract»

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  • Conflict detection for integration of taxonomic data sources

    Publication Year: 1999, Page(s):204 - 213
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Over recent years, international initiatives such as the 1993 UN Convention on Biological Diversity have highlighted the need for information about species diversity on a global scale. However, attempts to build global information systems by integrating smaller, independently created biodiversity databases have been hampered by differences in the sets of species names used. Some databases use diff... View full abstract»

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  • Evaluation of ad hoc OLAP: in-place computation

    Publication Year: 1999, Page(s):34 - 43
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (148 KB)

    Large-scale data analysis and mining activities, such as identifying interesting trends, making unusual patterns stand out and verifying hypotheses, require sophisticated information extraction queries. Being able to express these data mining queries concisely is of major importance not only from the user's, but also from the system's point of view. Recent research in OLAP has focused on data cube... View full abstract»

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  • TAMBIS Online: a bioinformatics source integration tool

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (24 KB)

    Conducting bioinformatic analyses involves biologists in expressing requests over a range of heterogeneous information sources. The TAMBIS (Transparent Access to Multiple Bioinformatics Information Sources) project seeks to make the diversity in data structures, call interfaces and locations of bioinformatics sources transparent to users. TAMBIS is available at <http://img.cs.man.ac.uk/tambis&g... View full abstract»

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  • A query system in a biological database

    Publication Year: 1999, Page(s):158 - 167
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    We present a query system that has been implemented in a practical biological database-GPCRDB. Distinguishing features of this system include: smart query relaxation and smooth integration of navigation with conventional language based query functions. Query relaxation is required due to the fact that queries are not always effective (in other words, expected results are frequently not achieved), ... View full abstract»

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  • Incremental join of time-oriented data

    Publication Year: 1999, Page(s):232 - 243
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    Data warehouses as well as a wide range of other databases exhibit a strong temporal orientation: it is important to track the temporal variation of data over several months or years. In addition, databases often exhibit append-only characteristics where old data is retained while new data is appended. Performing joins efficiently on large databases such as these is essential to obtain good overal... View full abstract»

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  • DML: a bridge between database systems and L-systems for biological research

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8 KB)

    Presents DML (Data Model tools for L-systems). This work combines a novel application area with databases in bioinformatics. DML allows the specification of database structures and queries in terms of objects and relations that are specific to scientific L-system applications. L-systems have been used in many scientific areas. However, not much consideration has been given to persistent storage an... View full abstract»

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  • Challenges and opportunities in scientific and statistical databases

    Publication Year: 1999, Page(s):180 - 181
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    First Page of the Article
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  • Dynamic caching of query results for decision support systems

    Publication Year: 1999, Page(s):254 - 263
    Cited by:  Papers (9)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    The response time of DSS (decision support system) queries is typically several orders of magnitude higher than the response time of OLTP (online transaction processing) queries. Since DSS queries are often submitted interactively, techniques for reducing their response time are becoming increasingly important. We argue that caching of query results is one such technique particularly well suited t... View full abstract»

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  • Master-client R-trees: a new parallel R-tree architecture

    Publication Year: 1999, Page(s):68 - 77
    Cited by:  Papers (18)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    Scientific databases must be able to efficiently run subset retrievals of multidimensional data sets. If the data sets are very large, significant retrieval speedups can be obtained via parallelism. In this paper, we present a new parallel distributed shared-nothing R-tree architecture. We provide experimental results demonstrating actual speedups for several synthetic and real data sets. In addit... View full abstract»

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