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Toppling the pyramid

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  • Amway Corporation marked its 50th anniversary in May 2009 with a glitzy celebration at the MGM Grand on the Las Vegas Strip. Spotlights swept across the crowd of well-dressed people who had come from all over the world for the event. A movie theater– sized screen splashed the Amway logo against a cobalt blue background. Cameras fl ashed and music pulsated. The upbeat mood and excitement inside the auditorium felt similar to the energetic vibe at a national political convention or a religious rally....

    pdf238p baobinh1311 25-09-2012 87 18   Download

  • The idea of “nugget pyramids” has recently been introduced as a refinement to the nugget-based methodology used to evaluate answers to complex questions in the TREC QA tracks. This paper examines data from the 2006 evaluation, the first large-scale deployment of the nugget pyramids scheme. We show that this method of combining judgments of nugget importance from multiple assessors increases the stability and discriminative power of the evaluation while introducing only a small additional burden in terms of manual assessment. ...

    pdf8p hongvang_1 16-04-2013 33 1   Download

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