idplus = (teacher<0) idminus = -idplus rarr1[idplus] = rarr1[idplus]-1y1=fun1(rarr1,rarr2) y2=fun2(rarr1,rarr2) y3=fun3(rarr1,rarr2) x=transpose(concatenate((-ones((1,N)),y1,y2)))returnx, teacher[0] 开发者ID:albert4git,项目名称:aTest,代码行数:29,代码来源:datagen....
If A is 3 by 3, det A is plus or minus the volume of the parallelepiped, three of whose edges are the vectors that are the rows of A. Manipulations on the columns of a matrix produce the same effect on the determinant as the same manipulations on the rows. This chapter presents a...
sparse.setAsDouble(2.0,0,0);// basic calculationsMatrixtranspose= dense.transpose(); Matrix sum = dense.plus(sparse); Matrix difference = dense.minus(sparse); Matrix matrixProduct = dense.mtimes(sparse); Matrix scaled = dense.times(2.0); Matrix inverse = dense.inv(); Matrix pseudoInverse =...
"" # Number of interpolation points minus one n = 5 toll = 1.e-6 points = np.linspace(0, 1, (n+1) ) R = 1 P = 1 control_points_2d = np.asmatrix(np.zeros([n+1,2]))#[np.array([R*np.cos(5*i * np.pi / (n + 1)), R*np.sin(5*i * np.pi / (n + 1)),...
总结 优化规则HiveFilterSetOpTransposeRule简单来讲,就是把过滤条件下推到SetOp集合操作(Union、InterSect、Minus等等集合运算符的总称)的输入子分支上,提前过滤数据,减少中间结果以优化。此优化规则相对简单,易于理解,这里不再赘述。
Matrixdiff=mtm.minus(controlMtm); assertEquals(0,diff.aggregate(Functions.PLUS,Functions.ABS),1e-10); } 代码示例来源:origin: apache/mahout privatestaticMatrixlowRankMatrix(){ Matrixu=newRandomTrinaryMatrix(1,20,4,false); Matrixd=newDiagonalMatrix(newdouble[]{5,3,1,0.5}); ...
* Sets validGradientParameters_ afterwards to true. */voidcomputeGradientParameters()const{if(!validGradientParameters_){ H_.setZero();constintrefStep = patchSize+2;float* it_dx = dx_;float* it_dy = dy_;constfloat* it; Eigen::Vector3f J; ...
Jt[ii] = (kPlus-kMinus)/(2*epsilon); }//now that we have Jt, we can calculate JtJEigen::Matrix4d JtJ = Jt*Jt.transpose();//thikonov regularizationJtJ += Eigen::Matrix4d::Identity(); Eigen::Vector4d deltaParams = JtJ.inverse() * Jt*maxK; ...