Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2019-05-10 Cooperative journals: 《计算机应用研究》
Abstract： Considered the supply chain consisting of two competitive manufacturers and one e-commerce platform, this paper investigates the credit payment service strategy of e-commerce platform. According to the consumer surplus under different choices of consumers, this paper develops a revenue model of e-commerce platform before and after launching the service, and proposes delayed payment service strategy of e-commerce platform. The results imply that when consumers have a high degree of acceptance of products quality and the service has a big negative effect on consumers, e-commerce platform launching delayed payment service can bring good returns to the platform by increasing sales and increases the consumer surplus. When the consumer's acceptance of the products quality is small, and the negative effect of the service on the consumer is small, the e-commerce platform launches the service and sets a longer payment period will bring greater benefits to the platform and increase the consumer surplus, otherwise it will bring huge costs to the platform and damage the profit. E-commerce platform can increase revenue by formulating appropriate credit payment strategy.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2019-01-03 Cooperative journals: 《计算机应用研究》
Abstract： This paper established a Stackelberg game to research the store brand introducing strategy for a powerful retailer in a supply chain which is consisted of a manufacturer and a retailer. As the leader of the supply chain, the retailer chooses whether to introduce the store brand, while the manufacturer may have fairness concern towards the channel leader. Firstly, the paper resolved the optimal strategy as well as the profit for both manufacturer and retailer. Secondly, the paper investigated the impact of store brand introducing and fairness concern of the manufacturer by comparing four models. The results show that the manufacturer would raise the wholesale price and also the profit level when considering the fairness concern. The retailer would result in profit increasing with the introducing of store brand. For manufacturers, the store brand does not always harm their interests. The store brand would also beneficial to the manufacturer on condition that the substitution rate of the store brand is quite large.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-12-13 Cooperative journals: 《计算机应用研究》
Abstract： The edge sign prediction is to mine the sign-related implicit information according to the network topology, aiming to reveal the potential relationship between users. Node status and similarity can better represent sign attributes of edges, providing a theoretical basis for improving the prediction effect. By investigating the strong correlation between the two theories and the sign attributes of the edges, a sign prediction model is established. Firstly, use prestige evaluate the social status of user nodes. At the same time, cosine similarity can represent the user's social preferences. Then, both sides are combined based on the logistic regression learning model to establish the edge sign prediction model LR-SN. Finally, a random gradient ascent algorithm will optimize the model during training. The experimental results of three real network datasets show that compared with the existing baseline methods, the accuracy of sign prediction of LR-SN model is significantly improved and has certain generalization, indicating that the fusion of local information and global information can further improve the prediction effect.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-20 Cooperative journals: 《计算机应用研究》
Abstract： This paper studied the financing strategy selection problem of third-party logistics enterprise (3PL) when suppliers in a competitive relationship face financial constraints. It considered the two-echelon supply chain composed of two competitive suppliers and one retailer, and 3PL provides the supply chain for purchasing, logistics and financing services. Considered two scenarios of providing financing to supplier to get a price discount and taking into account additional cost of capital in purchasing, 3PL makes decision whether to finance to a supplier. It established the model of profits of 3PL, suppliers and retailer under different circumstances, and presented retailer's and suppliers' optimal price decision, and 3PL's optimal logistics service price decision. It analyzed 3PL's positive role of participating in the supply chain financing by comparing the earnings of enterprises before and after financing. This research shows that providing financing to a supplier with a shortage of funds would increase the revenues of 3PL, the retailer and the overall supply chain, and 3PL is more willing to provide financing to supplier when considering its own cost of capital. It also shows that the more competitive the suppliers, the greater the benefits of the 3PL and the retailer.
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