نتایج جستجو برای: hierarchical location
تعداد نتایج: 314805 فیلتر نتایج به سال:
Hub facility location problem looks to find the most appropriate location for deploying such facilities. An important factor in such a problem is the pool of potential locations from which the optimal locations must be selected. The present research was performed to address two key objectives: identifying the factors contributing to the selection locations for hub establishment, and presenting ...
Hierarchical Mobile IPv6 (HMIPv6) is an enhanced Mobile IPv6 for reducing signaling cost of location management. Multi-level Hierarchical Mobile IPv6 (MHMIPv6) can organize mobile region as a multi-level hierarchy architecture, which is more flexible to support scalable services. However, MHMIPv6 will bring additional packet processing overhead, and produce negative impact especially on some mo...
In the field of health losses resulting from failure to establish the facilities in a suitable location and the required number, beyond the cost and quality of service will result in an increase in mortality and the spread of diseases. So the facility location models have special importance in this area. In this paper, a successively inclusive hierarchical model for location of health centers i...
Hierarchical analysis is one of the prioritization methods of phenomena. This method provides comparison and use of expert people. In this research, the men-tioned method was applied in order to weight and prioritize valuation factors and indicators for applied science in primary school. The methodology of this research is descriptive survey. The statistical population is all experts (education...
Field of study and Goals: The provision of medical services and the distribution of agonist drugs in substance abuse treatment centers has led to a lack of attention to patients' treatment plans and a greater focus on drug distribution. In order to separate health and pharmaceutical services that are provided for opioid addicts in drug addiction treatment centers, a study has been designed with...
Several position-based routing protocols have been developed for mobile ad hoc networks. Many of these protocols assume that a location service is available which provides location information on the nodes in the network. This paper introduces a new schema in management of mobile nodes location in mobile ad hoc networks. Fuzzy logic optimization is applied to a better management of location upd...
In the current competitive conditions, all the manufacturers’ efforts are focused on increasing the customer satisfaction as well as reducing the production and delivery costs; thus, there is an increasing concentration on the structure and principles of supply chain (SC). Accordingly, the present research investigated simultaneous optimization of the total costs of a chain and customer satisfa...
Control overhead in a mobile ad hoc network may be reduced through hierarchical routing. However, to facilitate packet forwarding in a hierarchically organized network, each datagram must specify the hierarchical address of the destination. Maintaining and acquiring hierarchical addresses represents a location management (LM) problem and incurs control overhead in addition to that of a routing ...
An automatic design method for fuzzy controllers with a hierarchical prioritized structure is proposed. A messy genetic algorithm is used to learn di erent types of behaviour which are represented by a hierarchical set of fuzzy rules. We demonstrate that messy genetic algorithms are well suited to the task of learning because they allow a exible representation of the hierarchical prioritized st...
We conduct a comprehensive review on multi-level facility location problems which extend several classical facility location problems and can be regarded as a subclass within the well-established field of hierarchical facility location. We first present the main characteristics of these problems and discuss some similarities and differences with related areas. Based on the types of decisions in...
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