subspace

1.ORRLS算法可以保证所得特矢量矩阵具有正交性，还可以自适应地估计子空间维数。

ORRLS algorithm can guarantee orthonormality of the weight matrix in iteration.Moreover, it can track the rank of interference subspace.

2.Then in the subspace，the hypersphere containing almost training data with minimum radius is found as decision hypersphere for novel detection.

在该子空间中，通过优化方法寻找包含训练数据最小超平面，作为新颖决策界面。

3.These observations allow one to formalize the definition of reflection: a reflection is an involutive isometry of an Euclidean space whose set of fixed points is an affine subspace of codimension 1.

这些观察允许我们形式化反射定义: 反射是欧几里得空间对合等距同构，它不动点集合是余维度为 1 仿射子空间。