Semantic intelligent information publishing and subscribing method based on P2P technology

An information publishing and semantic technology, applied in the field of intelligent information interaction, can solve the problems of lack of semantic understanding, lack of expression ability, and inability to realize intelligent information interaction between users.

Active Publication Date: 2013-11-27
NAT UNIV OF DEFENSE TECH
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AI Technical Summary

Problems solved by technology

[0007] To sum up, the existing publish-subscribe system has certain deficiencies in terms of dynamics, fault tolerance, self-organization, etc. At the same time, the system

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  • Semantic intelligent information publishing and subscribing method based on P2P technology
  • Semantic intelligent information publishing and subscribing method based on P2P technology
  • Semantic intelligent information publishing and subscribing method based on P2P technology

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Embodiment Construction

[0057] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] Such as figure 1 As shown, the P2P technology-based semantic intelligence information publishing and subscribing method of the present invention, the specific steps are:

[0059] (1) Construct the system topology and set up super nodes: use structured P2P technology to construct the topology of multiple event agents in the P / S system into a Chord ring structure, and set a super node on the ring to extract information from the network The attributes of the data resources in the information network and construct the attribute space, and the data resources in the information network are abstracted as points or vectors in the high-dimensional attribute space.

[0060] (2) High-dimensional attribute space normalization processing: In view of the fact that there are many types of information in the current information network and di...

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Abstract

A semantic intelligent information publishing and subscribing method based on a P2P technology includes the steps that (1) a system topological structure is built, and a super node is set up; (2) standardization processing is carried out on high-dimensional attribute space; (3) high-dimensional data is partitioned, and a global index tree is built and maintained; (4) dimension reduction of the high-dimensional data: the node sorts through a data accumulation area assigned to self to be a multi-dimensional hypercube in the high-dimensional attribute space, uses a pyramid dimension reducing method for mapping high-dimensional data objects to one-dimensional data space and carries out indexing through the B+ tree; (5) an i-Chord method is used for managing the data objects; (6) intelligent information publishing and subscribing on the basis of semantics are achieved. The semantic intelligent information publishing and subscribing method has the advantages of being simple in principle and easy to achieve and popularize, and improving fault tolerance, dynamic nature and information distribution efficiency of a system.

Description

technical field [0001] The invention mainly relates to the field of semantic-based intelligent information interaction methods in large-scale information networks, in particular to a P2P technology-based semantic intelligent information publishing and subscribing method. Background technique [0002] With the rapid development and wide application of computer network technology, the digital resources in the network are showing an exponential growth trend, the forms of expression are becoming more and more diversified, and the user's demand for information acquisition is also increasing. Obtaining information that users are "interested in" has become a problem that people pay more and more attention to. [0003] The network environment presents the characteristics of large scale, decentralized control, loose coupling, autonomy, and dynamics. For this reason, researchers have proposed the Publish / Subscribe (hereinafter referred to as P / S) technology. The P / S system consists o...

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Application Information

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IPC IPC(8): G06F17/30
Inventor 王小峰吴纯青任沛阁胡晓峰黄杰虞万荣彭伟陶静孙浩
Owner NAT UNIV OF DEFENSE TECH
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