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This paper establishes a three-stage reverse supply chain model which includes one manufacturer, one retailer and one agent who helps the manufacturer to recall waste materials. Besides, this paper assumes that the numbers of this reverse supply chain are all based on the Stackelberg game model. Under the condition of stochastic market demands, this paper analyzes the optimal pricing and order strategies...
In recent decade, DRM (digital rights management) has focused on security techniques for solving the issues as the malicious copy, free dissemination and unrestricted abuse of digital contents or assets. Whereas some increasingly enhanced security policies, which were implemented at contents provider-side or user-side, have not brought about optimal utilities for participants in the contents value...
The (minimizing) achievement function of the traditional Goal Programming (GP) model has five basic forms: ni, pi, (ni+pi), (ni-pi), and (pi-ni), where ni and pi are th nonnegative under and over achievement variables in the i goal-constraint. Zhang and Shang (2001) proposed the theory of Goal Programs with -ni, -pi, and -(ni+pi) goals, which has many interesting and practical applications. This paper...
A multi-stage cooperation and competition model based on flexibility in port service supply chain consisting of a port enterprise and two service providers (SP) is built, using Stackelberg model and Cournot model. Flexibility in port service supply chain is studied. The influence factors of port enterprise's flexibility strategy and SP's flexibility strategy, relationship of port enterprise's flexibility...
Essential characteristics of foreign suppliers are identified that should be considered in the supplier selection process to control supply chain disruption risk in the manufacturerpsilas assembly operation. Since that the tangible and intangible characteristics are integrated in the supplier-ranking procedure and the multi-criteria evaluation system is introduced while the weight of each criteria...
Digital Rights Management ecosystem is composed of various participants, which adopt different security policies to meet their own security requirements, with a goal to achieve individual optimal benefits. However, from the perspective of the whole DRM-enabling contents industry, a simple adoption of several increasingly enhanced security policies does not necessarily implement an optimal benefit...
In this paper, we present a novel profile based focused crawling system for dealing with increasingly popular social media-sharing Web sites. In this system, we treat users' profiles as ranking criteria for guiding the crawling process. Furthermore, we divide a user's profile into two parts, an internal part, which comes from the user's own contribution, and an external part, which comes from the...
This paper presents a simple and intuitive method for mining search engine query logs to get fast query recommendations on a large scale industrial-strength search engine. In order to get a comprehensive solution, we combine two methods together. First, we study and model search engine users' sequential search behavior, and interpret this consecutive search behavior as client-side query refinement,...
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