File:Recall metric.jpg

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Figure: R-Metric graph demonstrates superiority of Algorithm SM-18 over the old Algorithm SM-15 for the presented collection used in the testing period of over 3 years dating back to Apr 2, 2015. It was plotted using 10,699 data points (i.e. repetition cases with data from both algorithms), and smoothed up to show the trends. One spot beneath the line of 0 at the vertical axis (R-metric<0) corresponds with a moment in time when the previous version of the algorithm appeared superior (in this case, due to a small sample of repetitions). Some positive and negative trends correspond with changes in the algorithm as data were collected in the new algorithm's testing period. A gradual increase in the metric in the months Feb-May 2016, might be a statistical aberration, or it might be the result of new interval values and a bigger R-metric for intervals departing from the optimum used in earlier SuperMemos. The latter interpretation might suggest that the benefits of Algorithm SM-18 can gradually increase over time.

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current19:43, 12 April 2019Thumbnail for version as of 19:43, 12 April 20191,549 × 918 (430 KB)SuperMemoHelp (talk | contribs)
09:37, 20 January 2018Thumbnail for version as of 09:37, 20 January 20181,321 × 742 (240 KB)SuperMemoHelp (talk | contribs)incompatible with the description
16:20, 14 December 2017Thumbnail for version as of 16:20, 14 December 20171,209 × 904 (175 KB)SuperMemoHelp (talk | contribs)
13:15, 8 May 2016Thumbnail for version as of 13:15, 8 May 20161,321 × 742 (240 KB)SuperMemoHelp (talk | contribs)
14:41, 2 April 2016Thumbnail for version as of 14:41, 2 April 20161,207 × 821 (180 KB)SuperMemoHelp (talk | contribs)
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