：On the basis of spectrophotometic colour matching the colour difference weight factor was proposed and used in the thesis.

Revision on solution of the renormalization group for Ising model with weight factor;

Meanwhile,quasi-weight factors for classification were adopted to resolve problems of classification error due to imbalance of sample types and numbers.

This algorithm is simple and independent of initial states, the value of weight factor can be self adaptively decided.

Expressing weighting factor in terms of refractive index to study multi-layer mirrors;

And the smoothed precise of Hatch filtering is higher than any other methods when the effect of phase-smoothed pseudo-range with different weighting factors are analyzed.

Finally a method is put forward to improve the front-end load through setting Weighting factor.

With the introduction of Vapnik s ε-insensitive loss function and the new weight factors, the new objective function is re-constructed, and consequently, its new update rules are derived according to the Lagrangian optimization theory.

A new method is applied in this article to the quantitative phase analysis for weight factors of X-ray diffraction intensity.

It is pointed out that the introduction of environomic weighted factor is the key to optimization.

The effect of the temperature is included in the pressure feedback signal and a weighted factor is introduced in order to separate the temperature effect from the feedback signal.

By using of a weighted factor in the temperature and pressure calculation of SAW sensor, the effect of the temperature on the phase shift can be eliminated, so the phase shift induced by the pressure can be detected independently by the sensor.