this paper proposes a method to solve multi-objective problems using improved particle swarm optimization. we propose leader particles which guide other particles inside the problem domain. two techniques are suggested for selection and deletion of such particles to improve the optimal solutions. the first one is based on the mean of the m optimal particles and the second one is based on appoin...

Emergence of green supply chain management could be attributed to the rising public awareness of environmental problems. Consumers say they increasingly prefer to purchase products that are produced with a minimum of pollution and with minimal environmental impact. Therefore, companies that successfully adopt a green policy can generate profits, reduce environmental impact, and provide positive...

The rise of algorithmic decision-making has spawned much research on fair machine learning (ML). Financial institutions use ML for building risk scorecards that support a range credit-related decisions. Yet, the literature in credit scoring is scarce. paper makes three contributions. First, we revisit statistical fairness criteria and examine their adequacy scoring. Second, catalog options inco...

according to research, over seventy percent of change efforts have been failed to achieve the expected goals. there are many reasons for the failure of change implementation, however, at the strategic and macro level, the non-alignment between business strategy and change variations may lead to the failure of change efforts. in this paper, the alignment between business strategy and change vari...

BACKGROUND Many studies have measured the intensity of end of life care. However, no summary of the measures used in the field is currently available. OBJECTIVES To summarise features, characteristics of use and reported validity of measures used for evaluating intensity of end of life care. METHODS This was a systematic review according to PRISMA guidelines. We performed a comprehensive li...

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. SUMMARY In this paper we investigate the out-of-sample for...

We demonstrate a negative relationship between pro-market reforms and the sustainability of superior profits in an emerging economy. The decline in sustainability of superior profits shows that pro-market reforms bring significant threats in addition to the various opportunities such as greater availability of production factors and greater freedom to enter and operate businesses highlighted in...

This paper investigates the effect of capacity constraints on the sustainability of collusion in markets subject to cyclical demand fluctuations. In the absence of capacity constraints (i.e. a limiting case of our model), Haltiwanger and Harrington (1991) show that firms find it more difficult to collude during periods of decreasing demand. We find that this prediction can be overturned if firm...

This work addresses data replication and consistency maintenance in large scale systems. Based on the observation that partial replication of data allows to improve network traffic and to preserve locality, particularly in large scale systems, it focuses on the constraints necessary to maintain consistency when partial replication is used. More precisely, it points out that the transfer of info...

We study an extension of the Linear Multiple Choice Knapsack (LMCK) Problem that considers two criteria. The problem can be used to find the optimal allocation of an available resource to a group of disjoint sets of activities, while also ensuring that a certain balance on the resource amounts allocated to the activity sets is attained. The first criterion maximizes the profit incurred by the i...