Block chain DPOS consensus mechanism improvement method based on HK clustering

Abstract

The invention discloses a block chain DPOS consensus mechanism improvement method based on HK clustering, and the method comprises the steps: selecting voting enthusiasm factor indexes, and building a node enthusiasm evaluation model according to the voting enthusiasm factor indexes; after the node enthusiasm evaluation model is established, an HK model clustering algorithm based on viewpoint dynamics is introduced to cluster and classify the nodes; and after the nodes are clustered and classified, different voting rewards are given to different nodes according to different categories, so that the nodes are stimulated to vote. According to the method, a block chain DPOS incentive mechanism based on HK clustering is introduced, appropriate rewards are given to voting nodes, the rewards are only related to user behaviors, the rewards obtained by voting of the nodes with high enthusiasm are high, the rewards obtained by voting of the nodes with low enthusiasm are low, and therefore the user nodes are stimulated to actively participate in voting, and operation of a DPOS consensus mechanism is maintained.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a method for improving the DPOS consensus mechanism of block chains based on HK clustering. Background technique [0002] In recent years, blockchain technology has been known and researched by more and more people. Blockchain technology can be simply understood as a new distributed infrastructure and computing paradigm composed of distributed storage, point-to-point transmission, cryptography principles, hash algorithms, consensus mechanisms and other technologies. Since the blockchain was proposed in Satoshi Nakamoto's Bitcoin white paper in 2008, it has gradually developed rapidly. Its decentralization and non-tamperable characteristics can prove the authenticity of the calculation process to third parties, so as to realize business logic. The self-proving innocence brings calculable trust to the world. Bitcoin is the application of blockchain 1.0, and with the emergenc...

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Problems solved by technology

For example, Tan Senpeng (Tan Senpeng, Yang Chao. Research and Improvement of Blockchain DPoS Consensus Mechanism [J]. Modern Computer (Professional Edition), 2019 (06): 11-14.) and Fu Yaoyao (Fu Yaoyao, Li Shengen. Improvement scheme of authorized share certificate consensus mechanism [J]. Computer Engineering and Application, 2020, 56(19): 48-54.) Both adopt the method that witness nodes distribute dividends to nodes that voted for themselves Incentives, thus encouraging ordinary nodes to participate in voting, but doing so will further increase the probability of bribery and collusion of nodes, and since rewards must be awarded to witness nodes, ordinary nodes have low expectations for rewards, and will further aggravate DPOS. Weak centralization feature makes rewards tend to be concentrated in the hands of a small number of nodes

Although this reward distribution algorithm reduces the "wealth" concentration problem, other shortcomings are not improved

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