File:Cumulative forgetting curve.jpg: Difference between revisions

From SuperMemo 18 Help
Jump to navigation Jump to search
No edit summary
mNo edit summary
Line 1: Line 1:
In SuperMemo, forgetting curves can be normalized over item difficulty ('''All AFs''') at different memory stabilities ('''All Reps''')(as in the picture above). As a result, you can display:
{{Fig|In SuperMemo 18, [[Glossary:Forgetting_curve|forgetting curves]] can be normalized over [[Glossary:A-Factor|A-Factors]] ('''All AFs''') at different [[Glossary:Repetition|repetition]] categories ('''All Reps''')(as in the picture above). As a result, you can display:  
#your cumulative forgetting curve (<span style="padding: 3px; color: white; background-color: blue;">blue dots</span>)
#''your cumulative [[Glossary:Forgetting_curve|forgetting curve]] (<span style{{=}}"padding: 3px; color: white; background-color: blue;">blue dots</span>)''
#its negative exponential approximation used by SuperMemo (<span style="padding: 3px; color: white; background-color: red;">red line</span>)
#''its negative exponential approximation used by SuperMemo (<span style{{=}}"padding: 3px; color: white; background-color: red;">red line</span>)''
#individual data points from all forgetting curves collected by SuperMemo (<span style="padding: 3px; background-color: yellow;">yellow circles</span>).
#''individual data points from all [[Glossary:Forgetting_curve|forgetting curves]] collected by SuperMemo (<span style{{=}}"padding: 3px; background-color: yellow;">yellow circles</span>).''
'''''Time (normalized)''' stands at 100% for maximum [[Glossary:U-Factor|U-Factor]] for each entry of the [[Glossary:RF_matrix|RF matrix]]. '''Decay''' stands for the decay constant of the [[Glossary:Forgetting_curve|forgetting curve]]. '''Cases''' shows the number of [[Glossary:Repetition|repetition]] cases used in plotting the graph. '''Repetitions''' stands for the number of [[Glossary:Repetition|repetitions]] executed when determining [[Glossary:R-Factor|R-Factors]]. '''Deviation''' is a square root of the average of squared differences between the data and the approximated [[Glossary:Forgetting_curve|forgetting curve]].}}

Revision as of 05:14, 3 March 2019

Figure: In SuperMemo 18, forgetting curves can be normalized over A-Factors (All AFs) at different repetition categories (All Reps)(as in the picture above). As a result, you can display:

  1. your cumulative forgetting curve (blue dots)
  2. its negative exponential approximation used by SuperMemo (red line)
  3. individual data points from all forgetting curves collected by SuperMemo (yellow circles).

Time (normalized) stands at 100% for maximum U-Factor for each entry of the RF matrix. Decay stands for the decay constant of the forgetting curve. Cases shows the number of repetition cases used in plotting the graph. Repetitions stands for the number of repetitions executed when determining R-Factors. Deviation is a square root of the average of squared differences between the data and the approximated forgetting curve.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current03:07, 25 March 2019Thumbnail for version as of 03:07, 25 March 20191,549 × 918 (598 KB)SuperMemoHelp (talk | contribs)
09:27, 27 July 2013Thumbnail for version as of 09:27, 27 July 20131,016 × 721 (193 KB)SuperMemoHelp (talk | contribs)* the old one included bugs, incl. the "last point dot" * more reps cases * better deviation
05:33, 4 August 2011Thumbnail for version as of 05:33, 4 August 20111,022 × 649 (183 KB)SuperMemoHelp (talk | contribs)In SuperMemo 15, forgetting curves can be normalized over A-Factors at different repetition categories. As a result, you can display (1) your global forgetting curve (blue dots) and (2) its negative exponential approximation used by SuperMemo (red line).

The following 2 pages use this file:

Metadata