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The present study examined the relationship between promotion, perceived instrumentality of organizational citizenship behavior (OCB) for promotion, and employees' OCB before and after promotion. A field quasi-experiment involving 293 tellers of a multinational bank was conducted. Both supervisors and employees provided OCB ratings 3 months before and 3(More)
This research studies the risk prediction of hospital readmissions using metaheuristic and data mining approaches. This is a critical issue in the U.S. healthcare system because a large percentage of preventable hospital readmissions derive from a low quality of care during patients' stays in the hospital as well as poor arrangement of the discharge(More)
Cardiac catheterization is one of the critical procedures in patient care. It is pertinent for all process related issues in this department to be handled with due priority. This research is a cross-functional effort with a leading hospital that was in its planning stage to implement an overall process improvement at its cardiac catheterization lab(More)
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In this paper, a novel discrete particle swarm optimization (PSO) algorithm is proposed to solve the team orienteering problem (TOP). Discrete evaluation is achieved by redefining all operators and operands used in PSO. To obtain better results, a strengthened PSO, which improves both exploration and exploitation during the search process, is employed. Our(More)
In this paper, customer restaurant preference is predicted based on social media location check-ins. Historical preferences of the customer and the influence of the customer's social network are used in combination with the customer's mobility characteristics as inputs to the model. As the popularity of social media increases, more and more customer(More)
Many useful patterns can be derived from analyzing microblogging behavior at different scales (individual and social group). In this paper, we derive patterns relating to spatio-temporal traffic flow, visit regularity, content and social ties as they relate to an individual's activities in an urban environment (e.g., New York City). We also demonstrate,(More)