TSWCrowd: A Decentralized Task-Select-Worker Framework on Blockchain for Spatial Crowdsourcing

TSWCrowd: A Decentralized Task-Select-Worker Framework on Blockchain for Spatial Crowdsourcing

Blog Article

Spatial crowdsourcing is an effective and novel method.In crowdsourcing Rangehood Vent Hose systems, a centralized platform is traditionally used to allocate tasks and select workers.Centralized platforms always face following challenges: 1) How to ensure the rationality of tasks allocating; 2) How to ensure the payments of workers in the system when dishonest requesters exist; 3) How to ensure the maximum number of tasks are assigned.

4) How to ensure the integrity and reliability of the centralized platform.To solve these problems, this article proposed a distributed blockchain-based crowdsourcing framework - TSWCrowd (Task Select Worker Crowd).In this framework, tasks are sorted according to specific rules, thus tasks with higher priority are assigned to workers earlier.

Workers who are available for a task will be selected and return a result.Then the deployed smart contracts will pay the basic payment automatically.At Jackets/Outerwear the same time, relevant contracts also calculate and pay the quality payment according to the proposed quality reward formulation.

The proposed TSWCrowd framework on-chain involves a public dataset and uses solidity to compile the smart contracts.The framework was deployed on a local private blockchain.The decentralization property of the blockchain ensures the reliable assignment of tasks.

Task-select-worker (TSW) algorithm sorts tasks to ensure reliability.In this paper, the proposed framework was compared with the ABCrowd auction mechanism on-chain and the VCG mechanism off-chain.The results show that the average distance is shorter and the payment is higher, thus reaches the reasonability, reliability and availability.