https://wiki.basaga.org/index.php?action=history&feed=atom&title=%D0%94%D0%B2%D0%BE%D0%B9%D0%BD%D0%B0_%D0%BB%D0%BE%D0%B3%D0%B8%D1%81%D1%82%D0%B8%D1%87%D0%BD%D0%B0_%D1%84%D1%83%D0%BD%D0%BA%D1%86%D0%B8%D1%8F 2026-09-23T08:57:15Z Редакционна история на страницата в уикито MediaWiki 1.35.0 https://wiki.basaga.org/index.php?title=%D0%94%D0%B2%D0%BE%D0%B9%D0%BD%D0%B0_%D0%BB%D0%BE%D0%B3%D0%B8%D1%81%D1%82%D0%B8%D1%87%D0%BD%D0%B0_%D1%84%D1%83%D0%BD%D0%BA%D1%86%D0%B8%D1%8F&diff=13188&oldid=prev 2014-03-25T13:31:15Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="bg"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← По-стара версия</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Версия от 13:31, 25 март 2014</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Ред 1:</td> <td colspan="2" class="diff-lineno">Ред 1:</td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>=<del class="diffchange diffchange-inline">=</del>Двойна логистична функция<del class="diffchange diffchange-inline">==</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">[[Image: LogisticFunction3.png|thumb|right|300px|alt</ins>= Двойна <ins class="diffchange diffchange-inline">логистична сигмоидна крива| Двойна логистична сигмоидна крива]]</ins></div></td></tr> <tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">'''Двойната </ins>логистична функция <ins class="diffchange diffchange-inline">е подобна на логистичната функция с множество приложения.''' </ins></div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">[[Image: LogisticFunction3.png|thumb|right|alt</del>= <del class="diffchange diffchange-inline">Двойна логистична сигмоидна крива| Двойна логистична сигмоидна крива]]</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>=<ins class="diffchange diffchange-inline">=Същност==</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Нейната обща формула е:</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Двойната логистична функция е подобна на логистичната функция с множество приложения. </del>Нейната обща формула е:</div></td><td colspan="2"> </td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>y = \mbox{sgn}(x-d) \, \Bigg(1-\exp\bigg(-\bigg(\frac{x-d}{s}\bigg)^2\bigg)\Bigg)</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>y = \mbox{sgn}(x-d) \, \Bigg(1-\exp\bigg(-\bigg(\frac{x-d}{s}\bigg)^2\bigg)\Bigg)</div></td></tr> </table>

Detelina Staneva https://wiki.basaga.org/index.php?title=%D0%94%D0%B2%D0%BE%D0%B9%D0%BD%D0%B0_%D0%BB%D0%BE%D0%B3%D0%B8%D1%81%D1%82%D0%B8%D1%87%D0%BD%D0%B0_%D1%84%D1%83%D0%BD%D0%BA%D1%86%D0%B8%D1%8F&diff=13187&oldid=prev 2014-03-25T13:30:44Z

<p>Нова страница: ==Двойна логистична функция== [[Image: LogisticFunction3.png|thumb|right|alt= Двойна логистична сигмоидна крива| ...</p> <p><b>Нова страница</b></p><div>==Двойна логистична функция==<br /> <br /> [[Image: LogisticFunction3.png|thumb|right|alt= Двойна логистична сигмоидна крива| Двойна логистична сигмоидна крива]]<br /> <br /> Двойната логистична функция е подобна на логистичната функция с множество приложения. Нейната обща формула е:<br /> <br /> y = \mbox{sgn}(x-d) \, \Bigg(1-\exp\bigg(-\bigg(\frac{x-d}{s}\bigg)^2\bigg)\Bigg)<br /> <br /> където'' d ''е нейният център, а ''s'' е стръмния фактор. Тук „sgn” представлява [[сигнум]] функция.<br /> <br /> Тя се основава на кривата на [[Гаус]] (на англ. [[Gaussian curve]]) и графически е подобна на два еднакви логистични сигмоида свързани заедно в точката ''х = d.''<br /> <br /> Едно от приложенията и е при нелинейното нормализиране на проби, тъй като има свойството да отстранява отделените слоеве.<br /> ==Вижте още==<br /> <br /> *[[Линейна регресия]]<br /> *[[Логистично диференциално уравнение]]<br /> *[[Информация]]<br /> <br /> ==Източници==<br /> <br /> * Jannedy, Stefanie; Bod, Rens; Hay, Jennifer (2003). ''Probabilistic Linguistics''. Cambridge, Massachusetts: MIT Press<br /> * Gershenfeld, Neil A. (1999). ''The Nature of Mathematical Modeling''. Cambridge, UK: Cambridge University Press.<br /> * Kingsland, Sharon E. (1995). ''Modeling nature: episodes in the history of population ecology''. Chicago: University of Chicago Press.<br /> * Weisstein, Eric W., &quot;Logistic Equation&quot; from MathWorld.<br /> <br /> ==Външни препратки==<br /> <br /> *[http://rasch.org/rmt/rmt64k.htm От къде произхожда терминът логистична крива]<br /> *[http://luna.cas.usf.edu/~mbrannic/files/regression/Logistic.html Логистична регресия]<br /> *[http://luna.cas.usf.edu/~mbrannic/files/regression/Logistic.html Използване на проста S крива в Excel]<br /> *[http://mathworld.wolfram.com/SigmoidFunction.html Сигмоидна функция]<br /> *[http://jsxgraph.uni-bayreuth.de/wiki/index.php/Logistic_process Логистичен процес]<br /> *[http://www.appricon.com/index.php/logistic-regression-analysis.html Анализ и интерпретация на логистичната регресия]<br /> *[http://www.omidrouhani.com/research/logisticregression/html/logisticregression.htm Логистична регресия]<br /> <br /> [[category:Управленски решения и риск]][[category:Статистика]][[category:Моделиране и прогнозиране в управлението]]</div>

Detelina Staneva