2,520 research outputs found

    CoPhy: A Scalable, Portable, and Interactive Index Advisor for Large Workloads

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    Index tuning, i.e., selecting the indexes appropriate for a workload, is a crucial problem in database system tuning. In this paper, we solve index tuning for large problem instances that are common in practice, e.g., thousands of queries in the workload, thousands of candidate indexes and several hard and soft constraints. Our work is the first to reveal that the index tuning problem has a well structured space of solutions, and this space can be explored efficiently with well known techniques from linear optimization. Experimental results demonstrate that our approach outperforms state-of-the-art commercial and research techniques by a significant margin (up to an order of magnitude).Comment: VLDB201

    An Automatic Intelligent System for Document Processing and Fruition

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    With the increasing amount of documents available on-line, the need for intelligent digital libraries, that allow to automatize the document processing tasks and to suitably organize and make available the documents so as to provide personalized and focused access, becomes more and more pressing. This paper proposes an integrated system that merges intelligent modules covering all the phases involved in a document lifecycle, from acquisition, to processing, to information extraction, to personalized fruition for final users. The role and possible cooperation of Machine Learning and Data Mining techniques in the system is highlighted and discussed, along with their importance to provide effective support to both the building and the fruition of the Digital Library and the underlying knowledge base

    Conference report: AISB'08

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    Design and implementation cloud computing (TOC, Abstract, chapter 1 and Reference only)

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    Cloud computing is a new technology can be described as the next generation of Information Technology for the educational technical institute in Malaysia. With the rapidly growing needs of the information technology and the current financial crisis, most of the higher education institutes including the technical institute are facing the problem to provide the ICT infrastructure, education and development activities. However, cloud computing implementation in a technical institute in Malaysia is in the beginning stage. This research aim is to design and implement of Cloud Computing at ILP Selandar in learning and teaching environment also to allow the management, reducing the cost to purchase the expensive computer, licensed software and program that using during the learning process. This research also proposed to deploy a Hybrid Cloud Computing model where is the combination of existing local infrastructure with the public Cloud. The information is gathered by the interviewing IT Team and senior lecturer, they recommend the implementation of Cloud Computing at ILP Selandar. (ABSTRACT BY AUTHOR
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