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We design an optimal contract between a demand response aggregator (DRA) and a customer for incentive-based demand response. We consider a setting in which the customer is asked to reduce her consumption by the DRA and she is compensated for this reduction. However, since the DRA must supply the customer with as much power as she desires, a strategic customer can temporarily increase her base load...
Social networks have been popular platforms for information propagation. An important use case is viral marketing: given a promotion budget, an advertiser can choose some influential users as the seed set and provide them free or discounted sample products; in this way, the advertiser hopes to increase the popularity of the product in the users' friend circles by the world-of-mouth effect, and thus...
This paper proposes a new single line diagram automatic generation method for distribution network with ring based on genetic algorithm. The method can eliminate the edge crossing, avoid components overlap and keep the layout elegant. To achieve the above goals, the none-edge crossing model is brought up and a multi-objective function is established. The solution of the objective function is acquired...
This paper develops a task assignment decision support (TADS) system for an IT service manager to assign one or multiple tasks to the most suitable IT analysts. Developed for overcoming the deficiencies of the current task assignment practice in a case company, the TADS system approaches the task assignment problem in a novel and effective manner. With a decision rule knowledge base, a multiattribute...
This paper develops a new approach to sustainable planning of WEEE recycling innovation strategies for meeting the best sustainable innovation interests of a WEEE management company. A fuzzy multi-attribute decision making algorithm is used to evaluate the to-be implemented innovation strategies in terms of their readiness levels on identified sustainability-related key risk factors (SRFs) under the...
Defining the prospective operational regimes of power plant is one of the most important tasks that arise when developing energy system projects. For determining the project tasks of energy systems important are such characteristics of power plants operational regime as the capacity of being participated in certain regimes, annual production of electrical energy, number of hours for the capacity to...
This paper presents an optimization of CHP and thermal storage to maximize the profit of district heating company under electricity and thermal conditions, especially in Korea. The objective of optimization is to find the optimal electrical/thermal output and operation modes of CHP, and scheduling of thermal storage. Each operation mode of CHP is defined and modeled mathematically, and the physical...
This The paper looks at the process of solving tasks related to district heating at the conditions of market and uncertainty. Here, the possibilities of individual and cooperative behaviour of different market participants are also reviewed. For substantiating the rationality of the decisions and distributing the additional profit in the case of joining companies, the methods of the cooperative game...
Personnel scheduling problems are widely studied both by the scientific community and by the human resource managers of the companies. The financial impact of the decisions, the welfare of the employees, or more subjective concepts like “fairness” and “balance”, turn this case into much more than just a routine problem. When it comes to medical personnel scheduling, additional difficulties can be...
The restructuring of power systems with the introduction of electricity markets and decentralized structures increased the number of participating entities. This is particularly true in generation and retailing which are now provided under competition. Accordingly, it is important to develop models to simulate the behavior of these agents and to optimize their participation in electricity markets...
This paper proposes a Cloud-centric platform offering efficient inventory management as a service for supply chain stakeholders. The offered service will enable all stakeholders in a supply chain to minimize both their ordering costs and their shortage costs, while managing their inventories. The proposed cloud-based platform stores all the data, relating to a given product item, released by the involved...
In the situation that 4PL takes the logistics task of many supply-demand pairs, in order to provide efficient and timely logistics services, the problem of 4PL many-to-many network design with delivery time considered is studied. An optimization model is formulated, which minimizes the total logistics costs with the delivery time of the supply-demand pairs satisfying the required value. According...
This study aims to develop a model for sustainable production system with optimization approach. Hence, Multi objective Mixed Integer Programming was identified as an appropriate method. A proposed model was formulated considering two objective functions which are to minimize the economic cost and to minimize the carbon footprint of the production system. A case study company was conducted to have...
In Supply Chain Management, several costs should be taken into account. They cover all of the holding, purchasing, ordering and transportation. Minimizing costs may be done through considering each cost separately or all of them simultaneously. In this paper, we focus on the ordering problem. In a cooperative context, two major fundamental relations were studied: the first one considers the possible...
Although design is a problem that has been addressed in the literature, maintaining, upgrading and expanding energy distribution networks along the entire life-cycle is a topic that has received scarce attention. The problem includes considering the long-term dependence of the efficiency of the investments along their life span. This work presents a novel model for the optimization of energy distribution...
Optimising the IT infrastructure of large, often geographically distributed, organisations goes beyond the classical virtual machine reassignment problem, for two reasons: (i) the data centres of these organisations are composed of a number of hosting departments which have different preferences on what to host and where to host it, (ii) the top-level managers in these data centres make complex decisions...
Database developers all know the ACID acronym. It says that database transactions should be: Atomic, Consistent, Isolated, and Durable. These qualities seem indispensable, and yet they are incompatible with availability and performance in very large systems. For example, suppose you run an online book store and you proudly display how many of each book you have in your inventory. Every time someone...
Dominant relationship concept has recently used for answering preference queries. Here the concept of dominant relationship has been extended for the purpose of doing business analysis. New type of analysis presented here which is called as dominant relationship analysis. This kind of analysis can help product manufacturers to design new products, compare company's products with competitor company's...
Work-life balance (WLB) is described as the balance between work engagements and activities outside of work. Upon inspection it is clear that work-life balance is quite a complex system of different factors, and optimization of WLB does not equate to simply working less. Organizations are clearly impacted by the presence, or lack thereof, of current WLB initiatives. Several factors have increased...
Passenger transportation has become more diverse in the recent past. New providers and transportation services are reeling up markets around the world. Together with the rise of the sharing economy, substantial ramifications for the transportation sector emerge. As a result of an increasing number of mobility options, the traveler can choose from a richer mobility menu. The difficulty of selecting...
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