Now showing items 1-10 of 10

    • Adaptive and Automated Index Selection in Relational DBMS 

      Frank, Martin Robert; Omiecinski, Edward Robert; Navathe, Shamkant B. (Georgia Institute of Technology, 1994)
      We present a novel approach for a tool that assists the database administrator in designing an index configuration for a relational database system. A new methodology for collecting usage statistics at run time is ...
    • A Clustering Algorithm to Discover Low and High Density Hyper-Rectangles in Subspaces of Multidimensional Data. 

      Ordońẽz, Carlos; Omiecinski, Edward Robert; Navathe, Shamkant B.; Ezquerra, Norberto F. (Georgia Institute of Technology, 1999)
      This paper presents a clustering algorithm to discover low and high density regions in subspaces of multidimensional data for Data Mining applications. High density regions generally refer to typical cases, whereas low ...
    • An Efficient Algorithm for Mining Association Rules in Large Databases 

      Savasere, Ashok; Omiecinski, Edward Robert; Navathe, Shamkant B. (Georgia Institute of Technology, 1995)
      Mining for association rules between items in a large database of sales transactions has been described as an important database mining problem. In this paper we present an efficient algorithm for mining association rules ...
    • A Greedy Approach For Improving Update Processing In Intermittently Synchronized Databases 

      Yee, Wai Gen; Omiecinski, Edward Robert; Navathe, Shamkant B.; Ammar, Mostafa H. (Mostafa Hamed); Donahoo, Michael J.; Malik, Sanjoy (Georgia Institute of Technology, 1999)
      Replication of data on portable computers is a new DBMS technology aimed at catering to a growing population of mobile database users. Clients can download data items such as email, or sales data from a server onto ...
    • The Impact Of Data Placement Strategies On Reorganization Costs In Parallel Databases 

      Achyutuni, Kiran Jyotsna; Omiecinski, Edward Robert; Navathe, Shamkant B. (Georgia Institute of Technology, 1995)
      In this paper, we study the data placement problem from a reorganization point of view. Effective placement of the declustered fragments of a relation is crucial to the performance of parallel database systems having ...
    • A Mathematical Optimization Approach To Improve Server Scalability In Intermittently Synchronized Databases 

      Yee, Wai Gen; Navathe, Shamkant B.; Datta, Anindya; Mitra, Saby (Georgia Institute of Technology, 1999)
      This paper addresses a scalability problem in the process of synchronizing the states of multiple client databases which only have deferred access to the server. It turns out that the process of client update file generation ...
    • Minimizing Redundant Work in Lazily Updated Replicated Databases 

      Yee, Wai Gen; Omiecinski, Edward Robert; Navathe, Shamkant B. (Georgia Institute of Technology, 2000)
      Modern databases which manage lazy (or deferred updates) to clients which subscribe to replicated data do so on a client-by-client basis. They ignore any redundant work done during update processing caused by the ...
    • Specification and Efficient Monitoring of Local Graph-based Constraints in Hypermedia Systems 

      Arnold, Stephen; Mark, Leo; Navathe, Shamkant B. (Georgia Institute of Technology, 1994)
      The concept of hypermedia has existed for about fifty years. It became a practical technology in the seventies, and widely available in the eighties. The concept has proven quite useful as a paradigm for information ...
    • Toward A Method of Grouping Server Data Fragments for Improving Scalability in Intermittently Synchronized Databases 

      Yee, Wai Gen; Donahoo, Michael J.; Navathe, Shamkant B. (Georgia Institute of Technology, 1999)
      We consider the class of mobile computing applications with periodically connected clients. These clients wish to share data; however, due to the expense of mobile communication, they only connect periodically -- and ...
    • Towards Transactional Data Management over the Cloud 

      Tiwari, Rohan G.; Navathe, Shamkant B.; Kulkarni, Gaurav J. (Georgia Institute of Technology, 2010)
      We propose a consistency model for a data store in the Cloud and work towards the goal of deploying Database as a Service over the Cloud. This includes consistency across the data partitions and consistency of any replicas ...