| In recent years,with the rapid development and application of the Internet and artificial intelligence technology,the service industries such as housekeeping,e-commerce,finance,logistics and tourism have developed rapidly-However,at present,most of these service industries are based on the transaction on the third-party platform.The third-party platform tries its best to satisfy the respective requirements of both parties or multiple parties and to maximize the interests of all parties to facilitate the transaction.However,due to the complicated operation,low efficiency and high cost of the transaction on the third-party platform,In addition,the data flow,capital flow,information flow and other information transactions of the service contract are centralized,and the contract information is opaque,tamper-able,and cannot be traced,and other credit and security problems All this work is focused on third party platforms,data and transactions are not better protected,and there are trust and security issues between the parties-As people pay more and more attention to big data in improving utility efficiency and decision-making,participating in the experience of traders and other aspects increase.It is urgent to solve this problem.This paper utilizes the distributed characteristics of block chain technology and the programmable ability of smart contract to promote the maximized benefit matching transaction between housekeeping service personnel and home users,and combines the improved swarm intelligence algorithm to find the optimal matching solution.In this way,the purpose of removing the third party platform and realizing the transaction between participants using the underlying core technology of block chain to encrypting virtual digital currency has important scientific application value.In this article,first,analyze and study the traditional housekeeping service transaction mode,business process,and transaction characteristics,and propose solutions based on the characteristics of housekeeping service transactions and the centralization problems in the process.Secondly,this article combines blockchain and smart contract technology to provide new ideas to solve the problems of the traditional housekeeping service transaction mode centralization,and build decentralization based on the basic structure of the housekeeping service transaction blockchain and the steps in the housekeeping service transaction process.The purpose of the smart contract blockchain model for housekeeping service transactions is to solve the problems of data opacity and centralized management that exist in the centralization of housekeeping service transactions.Then,this article applies the group intelligence characteristics and advantages of the spider monkey algorithm to improve the spider monkey algorithm in view of the algorithm’s tendency to fall into the local optimal problem.The population is initialized by the Laplace distribution method,and a weight factor is introduced to influence the local leader’s stage and situation.The bureau leader’s analysis and improvement in the decision-making stage can solve the problem of intelligent matching of housekeeping service transactions.Therefore,a block chain-based housekeeping service transaction group smart contract algorithm is proposed.Finally,in the multi-node housekeeping service transaction Ethereum simulation platform experimental environment,the improved spider monkey algorithm is combined to solve the multi-attribute bilateral matching problem.Simulation experiments show that the algorithm proposed in this paper solves the above-mentioned problems and realizes It solves the trust issues of decentralization,intelligence,openness and transparency of information,and non-tampering in the current housekeeping service transaction process. |