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Semantic Web Standards

Semantic Web Standards. Presented By: Matthew Dunlop. Usable Security – CS 6204 – Fall, 2009 – Dennis Kafura – Virginia Tech. Semantic Web Standards. Thinking Inside the Box! Optimizing Web Services Performance Today (2008).

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Semantic Web Standards

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  1. Semantic Web Standards Presented By: Matthew Dunlop Usable Security – CS 6204 – Fall, 2009 – Dennis Kafura – Virginia Tech

  2. Semantic Web Standards • Thinking Inside the Box! Optimizing Web Services Performance Today (2008) Usable Security – CS 6204 – Fall, 2009 – Dennis Kafura – Virginia Tech

  3. Purpose • Improve web services performance using existing systems/tools Hence “thinking inside the box”

  4. Why Web Services • Take web applications to the next level • Application can publish its function to world • Solve interoperability problems

  5. The Box • Request construction • SOAP message construction • Transmission • Server Listening • SOAP message deconstruction • Request Processing

  6. Timing Process

  7. Client Language verses Return Type Response Times (ms) using an IIS Server Response Times (ms) using a Sun Server

  8. Client Language verses Message Size Response Times (ms) using a Sun Server and returning 1D arrays of 15-byte elements Response Times (ms) using a IIS Server and returning 1D arrays of 15-byte elements

  9. Data Type verses Message Size Response Times (ms) using a Java Client Response Times (ms) using a C# Client Response Times (ms) using a PHP Client

  10. Server Specifics verses Data Type Response Times (ms) as a function of server application and machine type

  11. Conclusion • Large data structures are more efficient • SUN Application Server more efficient • A more powerful server is better • PHP least efficient

  12. Discussion • Are any of these conclusions surprising? • Will the results of these tests make semantic web more attractive?

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