Proceedings 15th International Conference on Data Engineering (Cat. No.99CB36337)

23-26 March 1999

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  • Proceedings 15th International Conference on Data Engineering (Cat. No.99CB36337)

    Publication Year: 1999
    Request permission for commercial reuse | PDF file iconPDF (412 KB)
    Freely Available from IEEE
  • Que Sera, Sera: The Coincidental Confluence of Economics, Business, and Collaborative Computing

    Publication Year: 1999, Page(s):2 - 3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    Summary form only given. This presentation is an exploration of the next generation computing based on the confluence of radical and coincidental changes in economics, business, and technology. Whereas technology is a key enabler of change, it is and is the servant, not the master. Without a depth of understanding of this enabling role and the content in which technology serves, technology can be ... View full abstract»

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  • A database approach for modeling and querying video data

    Publication Year: 1999, Page(s):6 - 13
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (143 KB)

    Indexing video data is essential for providing content based access. We consider how database technology can offer an integrated framework for modeling and querying video data. We develop a data model and a rule-based query language for video content based indexing and retrieval. The data model is designed around the object and constraint paradigms. A video sequence is split into a set of fragment... View full abstract»

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  • Efficient theme and non-trivial repeating pattern discovering in music databases

    Publication Year: 1999, Page(s):14 - 21
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1745 KB)

    Proposes an approach for the fast discovery of all non-trivial repeating patterns in music objects. A repeating pattern is a sequence of notes which appears more than once in a music object. The longest repeating patterns in music objects are typically their themes. The themes and other non-trivial repeating patterns are important musical features which can be used both for content-based retrieval... View full abstract»

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  • Query processing issues in image (multimedia) databases

    Publication Year: 1999, Page(s):22 - 29
    Cited by:  Papers (61)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (143 KB)

    Multimedia database systems are essential for the effective and efficient use of large collections of image data. The aim of such systems is to enable retrieval of images based on their contents. As part of our research in this area, we are building a prototype content-based image retrieval system called CHITRA. This uses a four-level data model, and we have defined a fuzzy object query language (... View full abstract»

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  • On getting some answers quickly, and perhaps more later

    Publication Year: 1999, Page(s):32 - 39
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (119 KB)

    Traditionally, the answer to a database query is construed to be the set of all tuples that meet the criteria stated. Strict adherence to this notion in query evaluation is, however, increasingly unsatisfactory, because decision makers are more prone to adopting an exploratory strategy for information searching, which we call "getting some answers quickly, and perhaps more later". In this paper, w... View full abstract»

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  • Systematic multiresolution and its application to the World Wide Web

    Publication Year: 1999, Page(s):40 - 49
    Cited by:  Papers (3)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (141 KB)

    Many emerging environments are increasingly facing the problem where the requirements of applications easily outstrip the system resources. This is particularly acute in the World Wide Web (WWW) and many data-intensive applications like OLAP and multimedia databases. We address this problem in the Web context via systematic multiresolution, i.e., a framework for providing responses at different qu... View full abstract»

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  • Capability-sensitive query processing on Internet sources

    Publication Year: 1999, Page(s):50 - 59
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (181 KB)

    On the Internet, the limited query processing capabilities of sources make answering even the simplest queries challenging. We present a scheme called GenCompact for generating capability-sensitive plans for queries on Internet sources. The query plans generated by GenCompact have the following advantages over those generated by existing query processing systems: the sources are guaranteed to supp... View full abstract»

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  • A messaging-based architecture for enterprise application integration

    Publication Year: 1999, Page(s):62 - 63
    Cited by:  Papers (1)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (151 KB)

    This paper discusses a messaging-based architecture for enterprise application integration (EAI). The first generation of enterprise application integration focused on the problem of making data held by various enterprise applications available from a common location and in a common format. The current generation of EAI goes beyond this by also propagating and controlling the flow of business even... View full abstract»

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  • Database as an application integration platform

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (37 KB)

    Summary form only given as follows. This paper describes critical features that should be provided by any platform for application integration. These features include message queuing, message filtering and data transformation. The integration of these features with a database makes for a powerful platform for application integration that is scalable, reliable, available and manageable. View full abstract»

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  • Business objects and application integration

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (54 KB)

    Summary form only given as follows. Application integration addresses the need for diverse applications to be able to communicate with each other across application boundaries and across platform boundaries. Business objects extend the type system of relational databases to deal with the needs of application integration. The requirements of business application integration include event-based info... View full abstract»

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  • Cooperative caching in append-only databases with hot spots

    Publication Year: 1999, Page(s):70 - 78
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (114 KB)

    We measure the performance of several cooperative caching policies for a database with hot spots. The workload consists of queries and append-only update transactions, and is modeled after a financial database of stock (historical) trading information. We show that cooperative caching is effective for this application. We show that selecting the correct set of peer servers when servicing a cache m... View full abstract»

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  • Improving RAID performance using a multibuffer technique

    Publication Year: 1999, Page(s):79 - 86
    Cited by:  Papers (3)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (101 KB)

    RAID (redundant array of inexpensive disks) offers high performance for read accesses and large writes to many consecutive blocks. On small writes, however, it entails large penalties. Two approaches have been proposed to address this problem. The first approach records the update information on a separate log disk, and only brings the affected parity blocks to the consistent state when the system... View full abstract»

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  • Managing distributed memory to meet multiclass workload response time goals

    Publication Year: 1999, Page(s):87 - 94
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (142 KB)

    In this paper we present an online method for managing a goal-oriented buffer partitioning in the distributed memory of a network of workstations. Our algorithm implements a feedback mechanism which dynamically changes the sizes of dedicated buffer areas and thereby the buffer hit rate for the different classes in such a way that user-specified response time goals are satisfied. The aggregated siz... View full abstract»

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  • Scalable web server design for distributed data management

    Publication Year: 1999
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (14 KB)

    With the explosive popularity of the internet and the world wide web (WWW), there is a rapidly growing need to provide unprecedented access to globally distributed data sources through the internet. Web accessibility will be an essential component of the services that future digital libraries should provide for clients. This need has created a strong demand for database access capability through t... View full abstract»

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  • A transparent replication of HTTP service

    Publication Year: 1999
    Cited by:  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (14 KB)

    We developed Web++, a prototype system based on user-transparent geographic replication which aims at improving the response time and the reliability of the HTTP service. Web++ extends the current Web client/server architecture with additional capabilities. The extension is provided via Java servlets at the server side and applets at the client side. The servlets pre-process the requested document... View full abstract»

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  • Atomic commitment in database systems over active networks

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (80 KB)

    Traditional communication networks have functioned only to deliver information packets from one end system to another. As the cost of computing power continues to decrease, it is worthwhile to consider the benefits of adding more of that computing power to the network itself, either to enhance services or to trade off against other costs such as time, bandwidth and storage. This new area of resear... View full abstract»

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  • A hypertext database for advanced sharing of distributed web pages

    Publication Year: 1999
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (163 KB)

    There are many learning systems using their web pages. These systems provide not only contents of the web pages but also the embedded links on them for learners. In these systems, since the learners can use all the hyperlinks embedded on the web page, they can visit unnecessary/invalid web pages for learning. In order to use web pages as instructional materials, authors of instructional materials ... View full abstract»

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  • Similarity searching in text databases with multiple field types

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (11 KB)

    Similarity searching in text databases with multiple field types is still an open problem. We experimented with CORDIS and we evaluated the effectiveness of many text retrieval methods in terms of precision, recall and ranking quality. View full abstract»

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  • Integrating heterogeneous OO schemas

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (12 KB)

    To eliminate semantic conflicts among the heterogeneous databases involved in a cooperation, a set of correspondence assertions for declaring their semantic relationships have to be constructed by DBAs or by users. Normally, four set relationships between object classes: equivalence, inclusion, intersection, and exclusion will be defined to provide knowledge about correspondences that exist among ... View full abstract»

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  • Confirmation: a solution for non-compensatability in workflow applications

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (182 KB)

    The notion of a compensation is widely used in advanced transaction models as means of recovery from a failure. Similar concepts are adopted for providing "transaction-like" behaviour for long business processes supported by workflows technology. Generally, designing a compensating task in the context of a workflow process is a non-trivial job. In fact, not every task is compensatable. This work c... View full abstract»

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  • Policies in a resource manager of workflow systems: modeling, enforcement and management

    Publication Year: 1999
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (64 KB)

    Summary form only given. We are interested in Workflow Management Systems (WFMS), and particularly, in Resource Management (RM) of WFMS. A WFMS consists of coordinating executions of multiple activities, instructing who (resource) do what (activity) and when. The "when" part is taken care of by the workflow engine which orders the executions of activities based on a process definition. The "who" p... View full abstract»

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  • TP-monitor-based workflow management system architecture

    Publication Year: 1999
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (15 KB)

    Workflow Management System (WFMS) implementations traditionally follow a client/server architecture with monolithic servers (workflow engines). This poster presents a WFMS architecture based on a TP-Monitor environment which partitions the workflow engine into several resource managers (RMs) individually managed by a TP-Monitor environment. The RMs together form the workflow engine serving user re... View full abstract»

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  • Efficient mining of partial periodic patterns in time series database

    Publication Year: 1999, Page(s):106 - 115
    Cited by:  Papers (69)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (164 KB)

    Partial periodicity search, i.e., search for partial periodic patterns in time-series databases, is an interesting data mining problem. Previous studies on periodicity search mainly consider finding full periodic patterns, where every point in time contributes (precisely or approximately) to the periodicity. However, partial periodicity is very common in practice since it is more likely that only ... View full abstract»

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  • STING+: an approach to active spatial data mining

    Publication Year: 1999, Page(s):116 - 125
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (171 KB)

    Spatial data mining presents new challenges due to the large size of spatial data, the complexity of spatial data types, and the special nature of spatial access methods. Most research in this area has focused on efficient query processing of static data. This paper introduces an active spatial data mining approach which extends the current spatial data mining algorithms to efficiently support use... View full abstract»

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