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

  • Semantic Verification for Fact Seeking Engines 
    Roussinov Dmitri; Fan Weiguo; Neves Fernando A Das (2005)
    We present the architecture of our web question answering (fact seeking) system and introduce a novel algorithm to validate semantic categories of the expected answers. When tested on the questions used by the prior research, ...
  • Detecting Changes on Unordered XML Documents Using Relational Databases: A Schema-Conscious Approach 
    Leonardi Erwin; Bhowmick Sourav S (2005)
    Several relational approaches have been proposed to detect the changes to XML documents by using relational databases. These approaches store the XML documents in the rela-tional database and issue SQL queries (whenever ...
  • Focused Crawling for both Topical Relevance and Quality of Medical Information 
    Tang Thanh Tin; Hawking David; Craswell Nick; Griffiths Kathy (2005)
    Subject-specific search facilities on health sites are usually built using manual inclusion and exclusion rules. These can be expensive to maintain and often provide incomplete coverage of Web resources. On the other hand, ...
  • Decentralized Coordination of Transactional Processes in Peer-to-Peer Environments * 
    Haller Klaus; Schuldt Heiko; Can T ¨; Urker (2005)
    Business processes executing in peer-to-peer environments usually invoke Web services on different, independent peers. Although peer-to-peer environments inherently lack global control, some business processes nevertheless ...
  • Access Control for XML -A Dynamic Query Rewriting Approach 
    Mohan Sriram; Sengupta Arijit; Wu Yuqing (2005)
    Being able to express and enforce role-based access control on XML data is a critical component of XML data management. However, given the semi-structured nature of XML, this is non-trivial, as access control can be applied ...
  • Securing XML Data in Third-Party Distribution Systems * 
    Carminati Barbara; Ferrari Elena; Bertino Elisa (2005)
    Web-based third-party architectures for data publishing are today receiving growing attention, due to their scalability and the ability to efficiently manage large numbers of users and great amounts of data. A third-party ...
  • Handling Frequent Updates of Moving Objects * 
    Lin Bin; Su Jianwen (2005)
    A critical issue in moving object databases is to develop appropriate indexing structures for continuously moving object locations so that queries can still be performed efficiently. However, such location changes typically ...
  • A Function-Based Access Control Model for XML Databases 
    Qi Naizhen; Kudo Michiharu; Myllymaki Jussi; Pirahesh Hamid (2005)
    XML documents are frequently used in applications such as business transactions and medical records involving sensitive information. Typically, parts of documents should be visible to users depending on their roles. For ...
  • Kerberos Assisted Authentication in Mobile Ad-hoc Networks 
    Pirzada Asad Amir; Mcdonald Chris (2004)
    An ad-hoc network comprises mobile nodes that cooperate with each other using wireless connections to route both data and control packets within the network. As the low transmission power of each node limits its communication ...
  • Establishing Trust In Pure Ad-hoc Networks 
    Pirzada Asad Amir; Mcdonald Chris (2004)
    An ad-hoc network of wireless nodes is a temporarily formed network, created, operated and managed by the nodes themselves. It is also often termed an infrastructure-less, self-organized, or spontaneous network. Nodes ...
  • Reducing Register Pressure Through LAER Algorithm 
    Roddick John (2003)
    When modern processors keep increasing the instruction window size and the issue width to exploit more instruction-level parallelism (ILP), the demand of larger physical register file is also on the increase. As a result, ...
  • Tuning the Collision Test for Power 
    Tsang W W; Hui L C K; Chow K P; Chong C F; Tso C W (2003)
    The collision test is an important statistical test for rejecting poor random number generators. The test simulates the throwing of balls randomly into urns. A problem in applying this test is to determine the number of ...
  • Homeless and Home-based Lazy Release Consistency Protocols on Distributed Shared Memory 
    Yu Byung-Hyun; Huang Zhiyi; Cranefield Stephen; Purvis Martin (2003)
    This paper describes the comparison between homeless and home-based Lazy Release Consistency (LRC) protocols which are used to implement Distributed Shared Memory (DSM) in cluster computing. We present a performance ...
  • In-Place versus Re-Build versus Re-Merge: Index Maintenance Strategies for Text Retrieval Systems 
    Lester Nicholas; Zobel Justin; Williams Hugh E (2004)
    Indexes are the key technology underpinning efficient text search. A range of algorithms have been developed for fast query evaluation and for index creation, but update algorithms for high-performance indexes have not ...
  • Access-Ordered Indexes 
    Garcia Steven; Williams Hugh E; Cannane Adam (2004)
    Search engines are an essential tool for modern life. We use them to discover new information on diverse topics and to locate a wide range of resources. The search process in all practical search engines is supported by ...
  • A Hierarchical Access Control Model for Video Database Systems 
    Bertino Elisa; Lyon Claude Bernard; Elmagarmid Ahmed K; Packard Hewlett; Zhu Xingquan; Elmagarmid A K; Packard Hewlett (2003)
    Content-based video database access control is becoming very important, but it depends on the progresses of the following related research issues: (a) efficient video analysis for supporting semantic visual concept ...
  • Early User—System Interaction for Database Selection in Massive Domain-Specific Online Environments Early User—System Interaction for Database Selection 
    Thomson Jack G Conrad; Claussen Joanne R S (1904)
    The continued growth of very large data environments such as Westlaw and Dialog, in addition to the World Wide Web, increases the importance of effective and efficient database selection and searching. Current research ...
  • Logical and Physical Design Issues for Smart Card Databases 
    Bolchini Cristiana; Salice Fabio; Schreiber Fabio A; Tanca Letizia; Milano Politecnico Di (2003)
    The design of very small databases for smart cards and for portable embedded systems is deeply constrained by the peculiar features of the physical medium. We propose a joint approach to the logical and physical database ...
  • Comparing the Performance of Collection Selection Algorithms 
    Powell Allison L; French James C (2003)
    The proliferation of online information resources increases the importance of effective and efficient information retrieval in a multicollection environment. Multicollection searching is cast in three parts: collection ...
  • Region Proximity in Metric Spaces and Its Use for Approximate Similarity Search 
    Amato Giuseppe; Rabitti Fausto; Savino Pasquale; Isti-Cnr; Zezula Pavel (2003)
    Similarity search structures for metric data typically bound object partitions by ball regions. Since regions can overlap, a relevant issue is to estimate the proximity of regions in order to predict the number of objects ...

Search DSpace


Browse

My Account