Few existing online car-hailing scheduling algorithms simultaneously take into consideration benefits and fairness. In this paper, a weighted sum of platform profit, driver income and passenger waiting time was used a...
详细信息
Few existing online car-hailing scheduling algorithms simultaneously take into consideration benefits and fairness. In this paper, a weighted sum of platform profit, driver income and passenger waiting time was used as the objective function of the assignment model. The improved Hungarian algorithm was employed to solve the problem. The imbalanced assignment problem was converted into a standard assignment problem by a virtual person(car) *** interests of the platform, driver, and passenger were balanced through weight coefficients. Three groups of experiments have verified that compared with the global search algorithm and the greedy algorithm, the performance of the results obtained by the presented algorithm has a great improvement, and the solution time complexity is lower than the global search algorithm.
In this paper, we are concerned with the gradient estimate of the electric field due to two nearly touching dielectric inclusions, which is a central topic in the theory of composite materials. We derive accurate quan...
详细信息
We are concerned with the quantitative study of the electric field perturbation due to the presence of an inhomogeneous conductive rod embedded in a homogenous conductivity. We sharply quantify the dependence of the p...
详细信息
The establishment of food traceability supply chain is an effective way to solve the problem of food safety. But the cost of operating traditional food traceability supply chain system is high. The enterprise on the c...
The establishment of food traceability supply chain is an effective way to solve the problem of food safety. But the cost of operating traditional food traceability supply chain system is high. The enterprise on the chain are not willing to participate, and the data on the chain is easy to falsified, which leads to the existence of food traceability and the lack of consumers' willingness to buy for it. Based on this, solving the high cost in the technical point has become a feasible meaning. Introducing blockchain technology into food safety traceability can improve brand reputation, maintain market and consumer confidence, improve supply chain management, accelerate product and reduce liability risk. In this paper, from the compatibility of block technology and food traceability supply chain, it is concluded that the introduction of blockchain technology will reduce the transaction cost, quality cost, time cost, activity cost, and supply chain traceability additional cost in the food supply chain cost. By comparing with the application cost of block chain technology, this paper explores the cost control mechanism of food traceability supply chain based on block chain, so as to promote the development of food traceability supply chain. The application of blockchain technology in food traceability supply chain will improve the food traceability supply chain system.
暂无评论