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Online retailers take into account history clicks when forecasting product market demand. Assuming that online retailers can forecast the market demand accurately, this study focuses on a supply chain composed of one online retailer together with multiple suppliers. When an online retailer determines an order quantity, the amount of maximum inventory is decided on the basis of “current demand plus...
Hot topics, as a common phenomenon on social media platform, play a major role in public opinion. This paper aims to discuss the issues about the duration of hot topics: which factors influence the duration of a hot topic on a social media platform? To answer this question, Cox regression model of survival analysis was introduced to make empirical analysis. The survey data containing 60 hot topics...
In this paper, a grey model (GM) based profitable duration forecasting approach is proposed for Chinese crude oil main production district. In this methodology, the forecasting functions on electricity expenditure and crude oil sales revenue are first built via GM. Based on these two forecasting functions, the profitable duration of crude oil production under the restriction of the coefficient of...
This paper proposes a public opinion propagation model on social networks based on SEIR. This model consider impacts of the node degree, social networks peculiar dissemination rules and users' habits, utilizes epidemiology and complex network theories, and establishes the dynamic evolution equations by building mathematical models of informed probability and disseminate probability. Simulation results...
The control of the information risk is an important task in the business administration, the information risk seriously affect the efficiency of the supply chain. This paper puts forward a model based on set pair analysis about information risk evaluation. This model can not only divide the extent of the information risk, but describe the trend of the information risk. It could describe the information...
In order to test and evaluate the influence of split share structure reform, an event study model is used in this paper. By introducing the unique characteristics of Chinese split share structure and the reform on 29th April, 2005, the CAR (cumulative abnormal returns) model can rationally explain the positive and negative effects of the reform around and after announcement. This paper provides the...
Hull block fabrication management information system has been widely used in the enterprises at present. However, due to the complex and tedious process, it is inconvenient for the staff to operate the management information system. In this paper, we apply KPI to the processes of hull block fabrication through the KPI theory and make business process table which can simplify the process. We propose...
In order to solve the multi-attribute decision making (MAMD) problems of which indexes and their weights are incomplete, the interval number is used in this paper. Based on the possibility-degree matrix, an interval MAMD method is proposed to solve the MAMD problems under incomplete information, by convergence and sequence. The given instance shows that it is feasible for the interval MAMD method...
The bullwhip effect in a supply chain seriously decreases the operation efficiency of the supply chain. Information sharing has been used as an important tool to resolve the challenges of supply chain management faced. Firstly, this paper analyzes the causes of bullwhip effect systemically, and then this paper analyzes the value of the information sharing in the a-supplier-multiretailers model. We...
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