A Novel RSSI Prediction Using Imperialist Competition Algorithm (ICA), Radial Basis Function (RBF) and Firefly Algorithm (FFA) in Wireless Networks

This study aims to design a vertical handover prediction method to minimize unnecessary handovers for a mobile node (MN) during the vertical handover process. This relies on a novel method for the prediction of a received signal strength indicator (RSSI) referred to as IRBF-FFA, which is designed by utilizing the imperialist competition algorithm (ICA) to train the radial basis function (RBF), and by hybridizing with the firefly algorithm (FFA) to predict the optimal solution. The prediction accuracy of the proposed IRBF–FFA model was validated by comparing it to support vector machines (SVMs) and multilayer perceptron (MLP) models. In order to assess the model’s performance, we measured the coefficient of determination (R2), correlation coefficient (r), root mean square error (RMSE) and mean absolute percentage error (MAPE). The achieved results indicate that the IRBF–FFA model provides more precise predictions compared to different ANNs, namely, support vector machines (SVMs) and multilayer perceptron (MLP). The performance of the proposed model is analyzed through simulated and real-time RSSI measurements. The results also suggest that the IRBF–FFA model can be applied as an efficient technique for the accurate prediction of vertical handover

Müşteri Değeri Müşteri Sermayesi Ve Otel Performansı İlişkisi Üzerine Kavramsal Bir Değerlendirme

Bu &ccedil;alışmada m&uuml;şteri değeri, m&uuml;şteri sermayesi ve otel performansı ilişkisi ilgili literat&uuml;re dayalı olarak kavramsal &ccedil;er&ccedil;evede değerlendirilmektedir. &Ouml;ncelikle her bir kavram farklı bakış a&ccedil;ılarıyla irdelenmekte, daha sonra bu kavramlar arası ilişkiler değerlendirilmektedir. &Ccedil;alışma sonucunda; t&uuml;ketici bakış a&ccedil;ısıyla m&uuml;şteri değeri ile m&uuml;şteri sermayesi kavramları arasında d&uuml;ş&uuml;k bir ilişki olduğu, ancak işletme bakış a&ccedil;ısı ile bu iki kavram arasında g&uuml;&ccedil;l&uuml; bir ilişki olduğu tespit edilmektedir. Benzer şekilde m&uuml;şteri yaşam boyu değeri, m&uuml;şteri sermayesi ve otel performansı kavramları arasında da işletme bakış a&ccedil;ısı ile g&uuml;&ccedil;l&uuml; bir ilişki kurulabileceği kanaatine varılmaktadır. Mevcut literat&uuml;re dayalı olarak yapılan bu değerlendirmelerin birincil verilere dayalı &ccedil;alışmalar ile desteklenmesi gerekliliği de vurgulanmaktadır. In this study, customer value, customer equity and hotel performance relationship is evaluated based on the current literature. Firstly, each concept is explained by focusing on their different aspects, and then interrelations among them are compared. As the results indicate, while in terms of customers the relationship between customer value and customer equity tend to be very weak, that tends to be very strong from the business point of view. Similarly, it is convinced that the interrelations among customer lifelong value, customer equity and hotel performance tend to be a strong. However, it should be taken into account that these evaluations are made based on the current literature; therefore in order to doublecheck these findings there is a need for future studies which based on primary data.</p