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  • 大小: 54KB
    文件類型: .zip
    金幣: 2
    下載: 1 次
    發布日期: 2021-06-16
  • 語言: Matlab
  • 標簽: lasso算法??matlab??

資源簡介

用于高維數據降維lasso算法 matlab代碼實現 功能豐富

資源截圖

代碼片段和文件信息

function?[slope_j]?=?computeSlope(wlambdagthreshold)
%?A?function?that?computes?the?appropriate?derivative?for?non-zero?w
%?and?points?zero-valued?w‘s?in?the?right?direction
%
%?Used?by:?LassoActiveSet?LassoGrafting?LassoSubGradient
slope_j?=?zeros(size(w1)1);

slope_j(g?>?lambda)?=?g(g?>?lambda)?+?lambda;
slope_j(g?slope_j(abs(w)?>?threshold)?=?g(abs(w)>threshold)?+?lambda*sign(w(abs(w)>threshold));

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-09-20?10:50??lasso算法\
?????文件????????7799??2009-10-29?12:34??lasso算法\LassoActiveSet.m
?????文件????????2158??2008-02-28?13:14??lasso算法\LassoBlockCoordinate.m
?????文件????????4769??2008-02-28?13:14??lasso算法\LassoConstrained.m
?????文件????????3855??2008-02-28?13:14??lasso算法\LassoGaussSeidel.m
?????文件????????2951??2008-02-28?13:14??lasso算法\LassoGrafting.m
?????文件????????4584??2008-02-28?13:14??lasso算法\LassoIteratedRidge.m
?????文件????????1104??2008-02-28?14:43??lasso算法\LassoIterativeSoftThresholding.m
?????文件????????1689??2008-02-28?13:14??lasso算法\LassoNonNegativeSquared.m
?????文件????????4312??2008-02-28?13:14??lasso算法\LassoPrimalDualLogBarrier.m
?????文件????????2954??2008-02-28?13:14??lasso算法\LassoProjection.m
?????文件????????1651??2008-02-28?14:19??lasso算法\LassoShooting.m
?????文件????????2045??2007-07-10?13:30??lasso算法\LassoSignConstraints.m
?????文件????????2798??2008-02-28?13:14??lasso算法\LassoSubGradient.m
?????文件????????4514??2008-02-28?13:14??lasso算法\LassoUnconstrainedApx.m
?????文件?????????449??2007-09-24?14:45??lasso算法\computeSlope.m
?????文件?????????461??2007-03-22?14:18??lasso算法\computeViol.m
?????文件?????????864??2015-09-19?09:42??lasso算法\example_lasso.m
?????文件?????????492??2009-09-17?14:14??lasso算法\example_lasso_warmStart.m
?????目錄???????????0??2015-09-20?10:50??lasso算法\sub\
?????文件???????49082??2003-01-22?03:04??lasso算法\sub\housing.data
?????文件????????1310??2007-06-17?15:20??lasso算法\sub\mchol.m
?????文件?????????227??2007-04-26?12:40??lasso算法\sub\mylogsumexp.m
?????文件?????????227??2007-01-10?23:32??lasso算法\sub\prepare_housing.m
?????文件????????4394??2007-04-07?15:48??lasso算法\sub\process_options.m
?????文件????????3965??2007-04-07?15:48??lasso算法\sub\repmatC.c
?????文件????????7680??2007-04-07?15:48??lasso算法\sub\repmatC.dll
?????文件???????20682??2007-04-07?15:48??lasso算法\sub\repmatC.mexglx
?????文件???????10000??2007-04-07?15:48??lasso算法\sub\repmatC.mexmac
?????文件?????????344??2006-06-27?14:19??lasso算法\sub\setdiag.m
?????文件?????????428??2007-04-07?15:48??lasso算法\sub\standardizeCols.m
............此處省略0個文件信息

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