Then,a cloud-model-based trust updating algorithm was presented.

According to the dynamic character of trust,a new model of trust renewal is provided,which is based on the two factors of time-attenuation and path-attenuation.

Based on two factors of time-attenuation and fuzzy approach degree, a new model of trust renewal is provided.

In order to raise the efficiency of the research and prevent of bad recommendation,the bid and trust renewal improved are introduced into a trust mode in grid in this paper.

Variable period updating algorithm of multiradar and ADS data fusion;

At present, there are all kinds of updating algorithm, but the choose value of every parame-ter in algorithm is usually on the basis of experience.

In this paper, an updating algorithm is proposed for matrix inversion in decorrelating and MMSE algorithm with randomly-accessing users in DS/CDMA system.

This paper considers the data mining of association rules on condition that transaction database D unchanged and itemsets I changed,presents two updating algorithms for the maintenance of association rules.

A new trust model based on subjective trust and recommendation with punishment mechanism is proposed,and the trust updating protocol is presented to adjust trust relationship.