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Ring-type networks contain hub-cycles and hub-blocks organized by hub-vertices of the networks. Some hub-vertices of a hub-cycle may union together, or some hub-vertices of a hub-block may be split into two or more hub-vertices. Such phenomena can be imitated by cycles and Euler's graphs of graph theory that is applied into today's network research extensively. We use two operations, named as the...
This paper proposes an improved unit substitution (IUS) heuristic for the enhanced adaptive Lagrangian relaxation (ELR) method in literature to solve the unit commitment (UC) problem. The ELR exploits unit substitution and unit decommitment to refine the UC schedule obtained from an adaptive Lagrangian relaxation heuristic. The IUS addresses several serious issues associated with the unit substitution...
Small and medium-sized enterprises play a very important role in China's economic and social development. Their development is inseparable from the financial support, and the development of credit business is also an important aspect of bank's operation. At the time of solving the problem of financing difficulties of small and medium-sized enterprises, how to manage credit risk will become an important...
The main factors and their interrelationship that influence the Telecom operation are analyzed firstly, and then the cause-and-effect diagram and the competitive model of duopoly telecom operators are established based on system dynamics. The number of users and turnovers within price discrimination strategy and non-price discrimination strategy are simulated. Conclusions indicated that for a single...
In multi-attribute auctions, score auction is the most prevalent mechanism in practical application. We consider the second-score auction protocol because of its properties of incentive compatibility and individual rationality. In the paper, we use the theory of production possibilities set in DEA to analyze the second-score auction. With the DEA-based cost norms, we revise the payment rule in the...
This paper analyzes the main socio-economic benefits of highway projects, then based on input-output model, respectively establishes the evaluation models of direct economic benefits and indirect economic benefits. In the last of the paper, an empirical research was conducted, taking Jinji highway in Tianjin as an example. The results show that the direct economic benefit has a positive relation with...
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