Information centric networking caching method based on content popularity prediction
An information-centric network and popularity technology, applied in data exchange networks, transmission systems, instruments, etc., can solve the problems of shortening node life, ignoring user distinction, lack of data content object integration and processing, etc.
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[0072] Embodiment 1 of the present invention provides an information center network caching method based on content popularity prediction, the method includes the following steps:
[0073] Step S1, node n records all Interest packets passing through the node, and calculates the similarity between the content requested by all Interest packets passing through the node according to the name information of the content requested by each Interest packet;
[0074] Wherein, calculating the similarity between contents in step S1 includes:
[0075] A total of S topics are defined according to the shared content in the network, m 1 , m 2 ,...,m S is the topic probability distribution of content m, r 1 , r 2 ,...,r S is the topic probability distribution of content r, using the relative entropy distance to calculate the similarity between content m and content r, then the relative entropy distance between content m and content r is expressed as D KL (m, r), where,
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