Difference between revisions of "Glossary:Stability increase matrix"

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;<span id="stability_increase_matrix">stability increase matrix</span> (SInc matrix; SInc[])
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;<span id="Stability_increase_matrix">stability increase matrix</span> (SInc matrix; SInc[])
:the matrix that represents the function of interval/stability increase in [[SuperMemo Algorithm|Algorithm SM-17]]. For any [[Glossary:Item|item]] at any time, the increase in [[Glossary:Stability|stability]] depends on:
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:the matrix that represents the function of interval/stability increase in [https://supermemo.guru/wiki/SuperMemo_Algorithm SuperMemo algorithm]. For any [[Glossary:Item|item]] at any time, the increase in [[Glossary:Stability|stability]] depends on:
 
:#current stability,
 
:#current stability,
 
:#current [[Glossary:Retrievability|retrievability]], and
 
:#current [[Glossary:Retrievability|retrievability]], and
 
:#current item [[Glossary:Difficulty|difficulty]].
 
:#current item [[Glossary:Difficulty|difficulty]].
:This function can be inspected using: '''[[Tools menu|Tools]] : [[Tools menu#Memory|Memory]] : [[Memory graphs (4D)|4D Graphs]] : [[Memory graphs (4D)#Stability increase function|Stability]]''' in SuperMemo. The '''SInc[] matrix''' can be considered an extension of the [[Glossary:OF_matrix|OF matrix]] (from older SuperMemos) into the dimension of [[Glossary:Retrievability|retrievability]]. This means that the new [[SuperMemo Algorithm|Algorithm SM-17]] can handle any [[Glossary:Repetition|repetition]] at any time, including freshly reviewed [[Glossary:Item|items]], as well as long-neglected items. [[Glossary:Retrievability|Retrievability]] is the dimension that reflects the time that has elapsed since the last repetition relative to the [[Glossary:Optimum_interval|optimum interval]]
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:This function can be inspected using: '''[[Toolkit menu|Toolkit]] : [[Toolkit menu#Memory|Memory]] : [[Memory graphs (4D)|4D Graphs]] : [[Memory graphs (4D)#Stability increase function|Stability]]''' in SuperMemo. The '''SInc[] matrix''' can be considered an extension of the [[Glossary:OF_matrix|OF matrix]] (from older SuperMemos) into the dimension of [[Glossary:Retrievability|retrievability]]. This means that the new [https://supermemo.guru/wiki/SuperMemo_Algorithm SuperMemo algorithm] can handle any [[Glossary:Repetition|repetition]] at any time, including freshly reviewed [[Glossary:Item|items]], as well as long-neglected items. [[Glossary:Retrievability|Retrievability]] is the dimension that reflects the time that has elapsed since the last repetition relative to the [[Glossary:Optimum_interval|optimum interval]]

Latest revision as of 14:23, 29 April 2019

stability increase matrix (SInc matrix; SInc[])
the matrix that represents the function of interval/stability increase in SuperMemo algorithm. For any item at any time, the increase in stability depends on:
  1. current stability,
  2. current retrievability, and
  3. current item difficulty.
This function can be inspected using: Toolkit : Memory : 4D Graphs : Stability in SuperMemo. The SInc[] matrix can be considered an extension of the OF matrix (from older SuperMemos) into the dimension of retrievability. This means that the new SuperMemo algorithm can handle any repetition at any time, including freshly reviewed items, as well as long-neglected items. Retrievability is the dimension that reflects the time that has elapsed since the last repetition relative to the optimum interval