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ICDE
1998
IEEE
147views Database» more  ICDE 1998»
16 years 7 months ago
The Effect of Buffering on the Performance of R-Trees
?Past R-tree studies have focused on the number of nodes visited as a metric of query performance. Since database systems usually include a buffering mechanism, we propose that the...
Scott T. Leutenegger, Mario A. Lopez
WWW
2004
ACM
16 years 7 months ago
The effect of the back button in a random walk: application for pagerank
Theoretical analysis of the Web graph is often used to improve the efficiency of search engines. The PageRank algorithm, proposed by [5], is used by the Google search engine [4] t...
Fabien Mathieu, Mohamed Bouklit
CHI
2008
ACM
16 years 6 months ago
Stirring up experience through movement in game play: effects on engagement and social behaviour
The recent development of controllers designed around natural body movements has altered the nature of gaming and contributed towards it being marketed as a more social activity. ...
James Le Couteur, Nadia Berthouze, Siân E. L...
CHI
2008
ACM
16 years 6 months ago
The effects of semantic grouping on visual search
This paper reports on work-in-progress to better understand how users visually interact with hierarchically organized semantic information. Experimental reaction time and eye move...
Tim Halverson, Anthony J. Hornof
CHI
2004
ACM
16 years 6 months ago
Sharp or smooth?: comparing the effects of quantization vs. frame rate for streamed video
We introduce a new methodology to evaluate the perceived quality of video with variable physical quality. The methodology is then used to assess an existing guideline that high fr...
John D. McCarthy, Martina Angela Sasse, Dimitrios ...