29 research outputs found

    QueRIE: Collaborative Database Exploration

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    Interactive database exploration is a key task in information mining. However, users who lack SQL expertise or familiarity with the database schema face great difficulties in performing this task. To aid these users, we developed the QueRIE system for personalized query recommendations. QueRIE continuously monitors the user’s querying behavior and finds matching patterns in the system’s query log, in an attempt to identify previous users with similar information needs. Subsequently, QueRIE uses these “similar” users and their queries to recommend queries that the current user may find interesting. In this work we describe an instantiation of the QueRIE framework, where the active user’s session is represented by a set of query fragments. The recorded fragments are used to identify similar query fragments in the previously recorded sessions, which are in turn assembled in potentially interesting queries for the active user. We show through experimentation that the proposed method generates meaningful recommendations on real-life traces from the SkyServer database and propose a scalable design that enables the incremental update of similarities, making real-time computations on large amounts of data feasible. Finally, we compare this fragment-based instantiation with our previously proposed tuple-based instantiation discussing the advantages and disadvantages of each approach

    The Repeatability Experiment of SIGMOD 2008

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    SIGMOD 2008 was the first database conference that offered to test submitters' programs against their data to verify the experiments published. This paper discusses the rationale for this effort, the community's reaction, our experiences, and advice for future similar efforts

    Enhanced Statistics for Element-Centered XML Summaries

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    International Conference on Information and Knowledge Management, Proceedings: Foreword

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    International Conference on Information and Knowledge Management, Proceedingsiii

    Report on the 10th international workshop on Web Information and Data Management (WIDM)

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    10.1145/1815918.1815930SIGMOD Record38250-52SREC

    Optimizing Queue-Based Semi-Stream Joins with Indexed Master Data

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    Map-reduce extensions and recursive queries

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