Documentos: Recent submissions

  • Incorporating Contextual Information in Recommender Systems Using a Multidimensional Approach 
    Adomavicius Gediminas; Tuzhilin Alexander; Tuzhilin A (2005)
    The article presents a multidimensional (MD) approach to recommender systems that can provide recommendations based on additional contextual information besides the typical information on users and items used in most of ...
  • Relevance Models to Help Estimate Document and Query Parameters 
    Bodoff David; Kong Hong (2004)
    A central idea of Language Models is that documents (and perhaps queries) are random variables , generated by data-generating functions that are characterized by document (query) parameters. The key new idea of this paper ...
  • A Model to Support Collaborative Work in Virtual Enterprise 
    Wynen Franck; Perrin Olivier; Godart Claude (2002)
    Current needs for virtual enterprises projects management lead to adapt production oriented management systems (i.e. workflow) to collaboration and necessary co-decision features. Such projects are submitted to unpredictable ...
  • Architectures Enabling Scalable Internet Search 
    Uhl Axel
  • SVM in Oracle Database 10g: Removing the Barriers to Widespread Adoption of Support Vector Machines 
    Milenova Boriana L; Yarmus Joseph S; Campos Marcos M (2005)
    Contemporary commercial databases are placing an increased emphasis on analytic capabilities. Data mining technology has become crucial in enabling the analysis of large volumes of data. Modern data mining techniques have ...
  • Distributed Privacy Preserving Information Sharing 
    Zhang Nan; Zhao Wei (2005)
    In this paper, we address issues related to sharing information in a distributed system consisting of autonomous entities, each of which holds a private database. Semi-honest behavior has been widely adopted as the model ...
  • Robust Real-time Query Processing with QStream 
    Schmidt Sven; Legler Thomas; Schär Sebastian; Lehner Wolfgang (2005)
    Processing data streams with Quality-of-Service (QoS) guarantees is an emerging area in existing streaming applications. Although it is possible to negotiate the result quality and to reserve the required processing resources ...
  • The TEXTURE Benchmark: Measuring Performance of Text Queries on a Relational DBMS 
    Ercegovac Vuk; Dewitt David J; Ramakrishnan Raghu (2005)
    We introduce a benchmark called TEXTURE (TEXT Under RElations) to measure the relative strengths and weaknesses of combining text processing with a relational workload in an RDBMS. While the well-known TREC benchmarks focus ...
  • Online Estimation For Subset-Based SQL Queries * 
    Jermaine Christopher; Dobra Alin; Pol Abhijit; Joshi Shantanu (2005)
    The largest databases in use today are so large that answering a query exactly can take minutes, hours, or even days. One way to address this problem is to make use of approximation algorithms. Previous work on online ...
  • Database-Inspired Search 
    Konopnicki David; Shmueli Oded (2005)
    " W3QL: A Query Language for the WWW " , published in 1995, presented a language with several distinctive features. Employing existing indexes as access paths, it allowed the selection of documents using conditions on ...
  • Optimistic Intra-Transaction Parallelism on Chip Multiprocessors 
    Colohan Christopher B; Ailamaki Anastassia; Gregory J; † Steffan; Mowry Todd C (2005)
    With the advent of chip multiprocessors, exploiting intra-transaction parallelism is an attractive way of improving transaction performance. However, exploiting intra-transaction parallelism in existing database systems ...
  • U-DBMS: A Database System for Managing Constantly-Evolving Data 
    Cheng Reynold; Singh Sarvjeet; Prabhakar Sunil (2005)
    In many systems, sensors are used to acquire information from external environments such as temperature, pressure and locations. Due to continuous changes in these values, and limited resources (e.g., network bandwidth and ...
  • Query Caching and View Selection for XML Databases * 
    Mandhani Bhushan; Suciu Dan (2005)
    In this paper, we propose a method for maintaining a semantic cache of materialized XPath views. The cached views include queries that have been previously asked, and additional selected views. The cache can be stored ...
  • Customizable Parallel Execution of Scientific Stream Queries 
    Ivanova Milena; Risch Tore (2005)
    Scientific applications require processing high-volume on-line streams of numerical data from instruments and simulations. We present an extensible stream database system that allows scalable and flexible continuous queries ...
  • Loadstar: Load Shedding in Data Stream Mining 
    Chi Yun; Wang Haixun; Yu Philip S (2005)
    In this demo, we show that intelligent load shedding is essential in achieving optimum results in mining data streams under various resource constraints. The Loadstar system introduces load shedding techniques to classifying ...
  • Native XML Support in DB2 Universal Database 
    Nicola Matthias; Linden Bert Van Der (2005)
    The major relational database systems have been providing XML support for several years, predominantly by mapping XML to existing concepts such as LOBs or (object-)relational tables. The limitations of these approaches are ...
  • Indexing data-oriented overlay networks 
    Aberer Karl; Datta Anwitaman; Hauswirth Manfred; Schmidt Roman (2005)
    The application of structured overlay networks to implement index structures for data-oriented applications such as peer-to-peer databases or peer-to-peer information retrieval, requires highly efficient approaches for ...
  • Getting Priorities Straight: Improving Linux Support for Database I/O 
    Hall Christoffer; Bonnet Philippe (2005)
    The Linux 2.6 kernel supports asynchronous I/O as a result of propositions from the database industry. This is a positive evolution but is it a panacea? In the context of the Badger project, a collaboration between MySQL ...
  • HePToX: Marrying XML and Heterogeneity in Your P2P Databases 
    Bonifati Angela; Qing Elaine; Terence Chang; Laks Ho; Lakshmanan V S; Pottinger Rachel (2005)
    We present HePToX, a full-fledged peer-to-peer database system that efficiently handles XML data heterogeneity. In a highly dynamic P2P network, it is unrealistic for a peer entering the network to be forced to agree on a ...
  • C-Store: A Column-oriented DBMS 
    Stonebraker Mike; Abadi Daniel J; Batkin Adam; Chen Xuedong; Cherniack Mitch; +; Ferreira Miguel; Lau Edmond; Lin Amerson; Madden Sam; ' Elizabeth O; † Neil; ' Pat O; † Neil; Rasin Alex; Tran Nga; +; Zdonik Stan; Waltham Ma †; Umass Boston; Boston Ma ‡ (2005)
    This paper presents the design of a read-optimized relational DBMS that contrasts sharply with most current systems, which are write-optimized. Among the many differences in its design are: storage of data by column rather ...

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