Browsing Computer Science by Author "Almeida, Virgílio"

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Browsing Computer Science by Author "Almeida, Virgílio"

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  • Characterizing Reference Locality in the WWW
    Almeida, Virgílio; Bestavros, Azer; Crovella, Mark; de Oliveira, Adriana (Boston University Computer Science Department, 1996-06-21)
    As the World Wide Web (Web) is increasingly adopted as the infrastructure for large-scale distributed information systems, issues of performance modeling become ever more critical. In particular, locality of reference is ...
  • Hierarchal Characterization and Generation of Blogosphere Workloads
    Duarte, Fernando; Mattos, Bernardo; Almeida, Jussara; Almeida, Virgílio (Boston University Computer Science Department, 2008-10-14)
    We present a thorough characterization of the access patterns in blogspace, which comprises a rich interconnected web of blog postings and comments by an increasingly prominent user community that collectively define what ...
  • A Hierarchical Characterization of a Live Streaming Media Workload
    Veloso, Eveline; Almeida, Virgílio; Meira, Wagner; Bestavros, Azer; Jin, Shudong (Boston University Computer Science Department, 2002-05-10)
    We present what we believe to be the first thorough characterization of live streaming media content delivered over the Internet. Our characterization of over five million requests spanning a 28-day period is done at three ...
  • Measuring the Behavior of a World-Wide Web Server
    Almeida, Jussara; Almeida, Virgílio; Yates, David J. (Boston University Computer Science Department, 1996-10-29)
    Server performance has become a crucial issue for improving the overall performance of the World-Wide Web. This paper describes Webmonitor, a tool for evaluating and understanding server performance, and presents new results ...
  • On the Fractal Nature of WWW and Its Application to Cache Modeling
    Almeida, Virgílio; de Oliveira, Adriana (Boston University Computer Science Department, 1996-02-05)
    The World Wide Web (WWW or Web) is growing rapidly on the Internet. Web users want fast response time and easy access to a enormous variety of information across the world. Thus, performance is becoming a main issue in the ...
  • On the Interaction Between an Operating System and Web Server
    Yates, David J.; Almeida, Virgílio; Almeida, Jussara M. (Boston University Computer Science Department, 1997-07-16)
    This paper examines how and why web server performance changes as the workload at the server varies. We measure the performance of a PC acting as a standalone web server, running Apache on top of Linux. We use two important ...
  • On the Intrinsic Locality Properties of Web Reference Streams
    Fonseca, Rodrigo; Almeida, Virgílio; Crovella, Mark; Abrahão, Bruno (Boston University Computer Science Department, 2002-08-13)
    There has been considerable work done in the study of Web reference streams: sequences of requests for Web objects. In particular, many studies have looked at the locality properties of such streams, because of the impact ...
  • Performance Analysis of a WWW Server
    Almeida, Virgílio; de Almeida, Jussara; Murta, Cristina (Boston University Computer Science Department, 1996-08-05)
    This paper addresses the problem of analyzing performance of WWW servers. The web has experienced a phenomenal growth and has become the most popular Internet application. As a consequence of its large popularity, the ...

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