METHODS: The discretion between PLS and OLS (ordinary least square) stepwise regression was shown by a case.

A method of target detection in infrared image sequences is proposed based on the least absolute deviation background predication.

The least absolute deviations are using widely used in engineering because of it s robustness,but the algorithm solving the least absolute deviation is not efficient.

The least absolute deviation criteria is widely used in engineering because of its robustness, but the algorithms for solving the least absolute deviation estimate of the regression coefficient are too explicated or only efficient for small sample points and variables.

Research on data fusion algorithm of redundancy information based on least square method

The relative coordinate for straightness error is set up, the discrete values in coordinate are linked based on least square method, then coordinate transform is realized, some eddy genes and contained area conforming to least condition are confirmed using numerical method, the evaluation of straightness error is achieved by compare.

A spatial error concealment based on least square filter;

Application of non-uniform B-spline least square in GPS leveling height fitting;

An Algorithm associated with Least Square (LS) and Adaptive Kalman Filtering;