This paper studies the method of restraining direct-arrival wave of passive radar based on outside radiation source,which adopts the adaptive technique of phased array radar,generates zero falling in the direction of direct-arrive wave to restrain the jamming by adjusting weighted vector.

Based on these work, this paper presents a definition of group consensus, and in the end, provides two methods of searching group preference vector from individual preference vectors.

Forecasting of the urban registered unemployment rate in Fujian province based on kernel principal component analysis and weighted support vector machine

The prediction model using the weighted support vector machine was proposed considering the factors which had relations with the global production indices.

So a new hybrid prediction model based on PCA and weighted support vector machine(WSVM) is proposed.

Using the high generaliza-tion ability of support vector machines (SVMs) and the idea of locally weighted learning (LWL) algorithm, this paper proposes a novel learning algorithm named weighted support vector machines (W_ SVMs) which is suitable for local le.

To deal with the common unbalanced problem in ABC inventory classification,this paper analyzed the limitation of general support vector machines and proposed a method of muhicriteria classification of inventories based on weighted support vector machines(W-SVM),which introduced weight factor for each class to compensate the bias towards class with large size of samples by unbalanced training set.