Documentos: Recent submissions
  • 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 ...
  • MEGA—The Maximizing Expected Generalization Algorithm for Learning Complex Query Concepts 
    Chang Edward; Li Beitao (2003)
    Specifying exact query concepts has become increasingly challenging to end-users. This is because many query concepts (e.g., those for looking up a multimedia object) can be hard to articulate, and articulation can be ...
  • The Use of Dynamic Contexts to Improve Casual Internet Searching 
    Leroy Gondy; Lally Ann M; Chen Hsinchun (2003)
    Research has shown that most users' online information searches are suboptimal. Query optimization based on a relevance feedback or genetic algorithm using dynamic query contexts can help casual users search the Internet. ...
  • Performance Issues and Error Analysis in an Open-Domain Question Answering System 
    Moldovan Dan; Pasçapasça Marius; Harabagiu Sanda; Surdeanu Mihai (2003)
    This paper presents an in-depth analysis of a state-of-the-art Question Answering system. Several scenarios are examined: (1) the performance of each module in a serial baseline system, (2) the impact of feedbacks and the ...
  • TOIS Reviewers 
    Amati Gianni; Hatzivassiloglou Vasilis; Mitra Mandar; Apostolico Alberto; Hawking David; Mittal Vibhu; Belkin Nick; Hendry David; Kwong Alistair Moffat; Ng Bor; Herlocker Jon; Moran Shlomo; Buckley Chris; Hiemstra Djoerd; Mukherjee Amar; Carbonell Jaime; Higashino Teruo; Muresan Gheorgie; Chandrasekar Raman; Hinneburg Alexander; Muresan Smaranda; Chakrabarti Kaushik; Hofmann Thomas; Nallapati Ramesh; Chau Michael; Hovy Eduard; Ponte Jay; Chen Francine; Howe Adele; Powell Allison; Cherbini John; Huang Zan; Prabhakar Sunil; Chomicki Jan; Hull David; Prager John; Chung Wingyan; Ipeirotis Panagiotis; Radev Dragomir; Clark Charlie; Jensen David; Resnik Philip; Collins Michael; Karypis George; Ribeiro-Neto Berthier; Cool Colleen; Kobla Vikrant; Riedewald Mirek; Craswell Nick; Koennemann Juergen; Robertson Steve; Davison Brian; Kwok Kl; Roantree Mark; Derthick Mark; Lavrenko Victor; Rbogati Monica; Doan Anhai; Motaz Dawn Lawrie; Saban El; Donath Judith; Satoh Lillian Lee Shin 'ichi; Souza Daryl D '; Lin Chienting; Savoy Jacques; Dunlop Mark; Lin Chin-Yew; Sclaroff Stan; Eichman David; Little Thomas D C; Selberg Eric; Faloutsos Christos; Losee Bob; Shanks Vaughan; Fuhr Norbert; Luvogt Chris; Singhal Amit; Furuta Richard; Macskassy Sofus; Soberoff Ian; Galhardas Helena; Marchand-Maillet Stephane; Smith John; Ginsburg Mark; Mehrotra Sharad; Smith Peter; Glover Eric; Meng Weiyi; Spence Robert (2003)
    TOIS is dependent on its editorial board to identify and manage reviewers and on those reviewers to write critical assessments of submitted papers. The review process is crucial to the quality of any journal and the editors ...
  • Exploiting Hierarchical Domain Structure to Compute Similarity 
    Ganesan Prasanna; Garcia-Molina Hector; Widom Jennifer (1904)
    The notion of similarity between objects finds use in many contexts, for example, in search engines, collaborative filtering, and clustering. Objects being compared often are modeled as sets, with their similarity traditionally ...
  • QProber: A System for Automatic Classification of Hidden-Web Databases 
    Gravano Luis; Ipeirotis Panagiotis G (2003)
    The contents of many valuable Web-accessible databases are only available through search interfaces and are hence invisible to traditional Web " crawlers. " Recently, commercial Web sites have started to manually organize ...
  • CLAIRE: A Modular Support Vector Image Indexing and Classification System 
    Tsai Chih-Fong; Mcgarry Ken; Tait John (2006)
    Many users of image retrieval systems would prefer to express initial queries using keywords. However, manual keyword indexing is very time-consuming. Therefore, a content-based image retrieval system which can automatically ...
  • Query Enrichment for Web-Query Classification Query Enrichment for Web-Query Classification 
    Shen Dou; Pan Rong; Kong Hong; Research Microsoft; Asia; Junfeng Jeffrey; Wu Kangheng; Yin Jie; Yang Qiang; Kong Hong; Shen D; Pan R; Pan J J; Wu K; Yin J; Yang Q (2006)
    Web-search queries are typically short and ambiguous. To classify these queries into certain target categories is a difficult but important problem. In this article, we present a new technique called query enrichment, which ...

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