*Ingenierías y Ciencias de la Computación (Proyecto VLIR): Recent submissions

  • XML Parsing: A Threat to Database Performance 
    Nicola Matthias; John Jasmi (2003)
    XML parsing is generally known to have poor performance characteristics relative to transactional database processing. Yet, its potentially fatal impact on overall database performance is being underestimated. We report ...
  • Efficient ordering for XML data 
    Fisher Damien K; Lam Franky; Shui William M; Wong Raymond K (2003)
    With the increasing popularity of XML, there arises the need for managing and querying information in this form. Several query languages, such as XQuery, have been proposed which return their results in document order. ...
  • Building XML Statistics for the Hidden Web 
    Aboulnaga Ashraf; Naughton Jeffrey F (2003)
    There have been several techniques proposed for building statistics for static XML data. However, very little work has been done in the area of building XML statistics for data sources that export XML views of data that ...
  • Raindrop: A Uniform and Layered Algebraic Framework for XQueries on XML Streams 
    Su Hong; Jian Jinhui; Rundensteiner Elke A (2003)
    XML stream applications bring the challenge of efficiently processing queries on sequentially accessible token-based data. While the automata model is naturally suited for pattern matching on tokenized XML streams, the ...
  • Exploring Group Mobility for Replica Data Allocation in a Mobile Environment 
    Huang Jiun-Long; Chen Ming-Syan; Peng Wen-Chih (2003)
    The growth in wireless communication technologies attracts a considerable amount of attention in mobile ad-hoc networks. Since mobile hosts in an ad-hoc network usually move freely, the topology of the network changes ...
  • Information Extraction from Biomedical Literature: Methodology, Evaluation and an Application 
    Subramaniam L Venkata; Mukherjea Sougata; Kankar Pankaj; Srivastava Biplav; Batra Vishal S; Kamesam Pasumarti V; Kothari Ravi (2003)
    Journals and conference proceedings represent the dominant mechanisms of reporting new biomedical results. The un-structured nature of such publications makes it difficult to utilize data mining or automated knowledge ...
  • A Reliable Storage Management Layer for Distributed Information Retrieval Systems 
    Clarke Charles L A; Tilker Philip L; Quoc Allen; Tran -Luan; Harris Kevin; Cheng Antonio S (2003)
    We present a storage management layer that facilitates the implementation of parallel information retrieval systems, and related applications, on networks of workstations. The storage management layer automates the process ...
  • iTopN: Incremental Extraction of the N Most Visible Objects 
    Bukauskas Linas; Mark Leo; Omiecinski Edward; H Michael (2003)
    The visual exploration of large databases calls for a tight coupling of database and visualization systems. Current vi-sualization systems typically fetch all the data and organize it in a scene tree, which is then used ...
  • Approximate Searches: k-Neighbors + Precision 
    Berrani Sid-Ahmed; Amsaleg Laurent; Gros Patrick (2003)
    It is known that all multi-dimensional index structures fail to accelerate content-based similarity searches when the feature vectors describing images are high-dimensional. It is possible to circumvent this problem by ...
  • Replication and Retrieval Strategies of Multidimensional Data on Parallel Disks 
    Chen Chung-Min; Cheng Christine T (2003)
    Aside from enhancing data availability during disk failures, replication of data is also used to speed up I/O performance of read-intensive applications. There are two issues that need to be addressed: (a) data placement ...
  • Ontologies for Semantically Interoperable Systems 
    Services End User Computing (2003)
    In this paper, we discuss the use of ontologies for semantic interoperability and integration. We argue that information technology has evolved into a world of largely loosely coupled systems and as such, needs increasingly ...
  • Mining Multiple Phenotype Structures Underlying Gene Expression Profiles 
    Tang Chun; Zhang Aidong (2003)
    DNA microarray technology is now widely used in basic biomed-ical research for mRNA expression profiling and are increasingly being used to explore patterns of gene expression in clinical research. Automatically detecting ...
  • Queueing Analysis of Relational Operators for Continuous Data Streams 
    Jiang Qingchun; Chakravarthy Sharma (2003)
    Currently, stream data processing is an active area of research , which includes everything from algorithms and ar-chitectures for stream processing to modelling, and analysis of various components of a stream processing ...
  • The VirGIS WFS-Based Spatial Mediation System 
    Boucelma Omar; Garinet Jean-Yves; Lacroix Zó E (2003)
    The proliferation of spatial data on the Internet is beginning to allow a much wider access to data currently available in various Geographic Information Systems (GIS). In order to provide effective spatial database ...
  • Securely Sharing Neuroimagery 
    Smith Kenneth; Swarup Vipin; Jajodia Sushil; Faatz Donald; Cornett Todd; Hoyt Jeff (2003)
    Shared scientific data, such as neuroimagery, offers great benefits to science. However, data owners must exercise custodial responsibilities which can conflict with the unhindered sharing of their data. Given simple choices ...
  • Question Answering from the Web Using Knowledge Annotation and Knowledge Mining Techniques 
    Lin Jimmy; Katz Boris (2003)
    We present a strategy for answering fact-based natural language questions that is guided by a characterization of real-world user queries. Our approach, implemented in a system called Aranea, extracts answers from the Web ...
  • Extending and Inferring Functional Dependencies in Schema Transformation 
    He Qi; Wang Tok; Ling (2004)
    We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schematic discrepant from each other, i.e., data ...
  • Composable XML Integration Grammars 
    Fan Wenfei; Garofalakis Minos; Xiong Ming; Jia Xibei (2004)
    The proliferation of XML as a standard for data representation and exchange in diverse, next-generation Web applications has created an emphatic need for effective XML data-integration tools. For several real-life scenarios, ...
  • Processing Search Queries in a Distributed Environment 
    Knabe Frederick; Tunkelang Daniel (2004)
    Endeca's approach to processing search queries in a distributed computing environment is predicated on concerns of correctness, scalability, and flexibility in deployment. Using a master–slave architecture, we are able to ...
  • Virtual Cursors for XML Joins 
    Yang Beverly; Fontoura Marcus; Shekita Eugene; Rajagopalan Sridhar; Beyer Kevin (2004)
    ËØÖÙÙØÙÖÖÐ ÓÓÒ× ÖÖ ÙÒÒÒÑÑÒØØÐ ÓÔÖÖØØÓÒ Ò ÅÄ ÕÙÙÖÝ ÔÖÓ¹ ×××ÒÒ ÒÒ ÐÐÖÖÖ ÓÝ Ó ÛÓÖÖ × ÓÙ××× ÓÒ ÒÒÒܹ¹¹××× Ð¹ ÓÖÖØØÑ× ÓÖ ÜÜÜÙØØÒÒ ØØØѺ ÁÒ ØØØ× ÔÔÔÖ¸ÛÔÔÔÖ¸Û ××ÖÖÖ ÓÛ Ø ÛÓ ÛÐй¹ÒÓÛÒ ÒÒÒÜ ØÙÖÖ× ß ÔÔØØ ÒÒÒÒÒ× ÒÒ ÒÒÒ×ØÓÖ ÒÒÓÖÑѹ ...

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