2results about How to "High performance advantage" patented technology

This invention discloses a graph anonymization method for privacy protection in weighted social networks. It combines member fuzzy clustering and simulated annealing to create an optimal cluster of node degree sequences, resulting in a new degree sequence. Edge addition and deletion operations are performed on the original graph to reconstruct the graph and satisfy the new degree sequence. For nodes with the same degree, to resist background knowledge attacks, the edge weights of some nodes are generalized so that the weight values ​​of nodes with the same degree satisfy a diversity model. Experimental results show that, compared with other methods, the combination of member fuzzy clustering and simulated annealing provided by this invention can not only resist background knowledge attacks on node degree and weighted edges in weighted social networks, but also effectively reduce the amount of data loss after anonymization and improve the actual utility of the data.

According to the multi-grade cold-heat-electricity flexible supply system based on the Carnot battery, the cycle characteristic that a Carnot battery system absorbs heat from the low-temperature side and supplies heat to the high-temperature side is utilized, and a cold-heat multi-grade supply and storage system structure capable of providing various forms of energy sources is innovatively designed; multiple functions including charging, power supply, heat supply and cold supply can be flexibly realized only by using one set of system, the equipment and energy storage cost is greatly reduced, the scale of the system can be flexibly adjusted according to needs, geographical and climate condition constraints in different application scenes are overcome, and compared with the prior art, the application of the Carnot battery is expanded, and the application range of the Carnot battery is expanded. And the method has extremely high performance advantages and popularization value.