Operational performance evaluation and process improvement in hotels have been the focus of several studies, a number of which have used Data Envelopment Analysis (DEA) to evaluate the operational performance of hotels in different destinations. This study sets out to evaluate the operational efficiency of twenty-three tourist hotels in Taipei over five years (2003 to 2007) using DEA models and...

In-network data aggregation plays an important role on energy consumption from the point of reducing the amount of communication in cluster-based wireless sensor networks. The selection of cluster heads is usually based on two criteria which are the number of cluster heads network needed and the times of every node serving as the cluster head. Too much or too little cluster head number will sho...

to study the effect of planting dates and genistein application on nitrogen content and nodulation of three annual medic species (medicago polymorpha cv. santiago m. rigidula cv. ragidula, and m. radiata cv. radiata), an experiment was conducted during 2005-2006 in the research farm of faculty of agriculture, shahed university, tehran. the treatments were arranged as split split plot in a rando...

. In order to study the variation for seed yield and its components, 200 accessions of alfalfa (Medicago sativa L.) were sown as drilled plots, using alpha designs/unreplicated with two repeated entries with in all of 10 blocks under dry land farming system in Kabodarahang Research Station, Hamadan, Iran, during 2010 to 2011. Data were analyzed for descriptive statistics, correlation, regressio...

Abstract We show the improvement to cosmological constraints from galaxy cluster surveys with addition of cosmic microwave background (CMB)-cluster lensing data. explore implications adding mass information 3.1 ? detection gravitational CMB by clusters Sunyaev–Zel’dovich (SZ) selected sample 2500 deg 2 SPT-SZ survey and targeted optical X-ray follow-up In ?CDM model, combination Planck power sp...

Many algorithms for fuzzy clustering depend on initial guesses of cluster prototypes, and on assumptions made as to the number of subgroups present in the data. This study reports on a method for carrying out fuzzy classification without apriori assumptions on the number of clusters in the data set. Assessment of cluster validity is based on performance measures using hypervolnme and density cr...

the aim of this study is to analyze the impact of industrial structure of clusters on entrepreneurship in business clusters (case study: valuable metals and precious stones of isfahan's clusters). the relevant population is isfahan clusters of valuable metals and precious stones. number of population is over than 300enterprises. according to the formula of sampling structural equation mode...

In classical Cluster Editing we seek to transform a given graph into a disjoint union of cliques, called a cluster graph, using the fewest number of edge modifications (deletions or additions). Motivated by recent applications, we propose and study Cluster Editing in multi-layer graphs. A multi-layer graph consists of a set of simple graphs, called layers, that all have the same vertex set. In ...

this research was designed to identify garlic (allium sativum l.) bolting clones and determining the relationship between their morphological traits and bolting capacity by using statistical methods of analysis of variance, comparison of means, correlation coefficients, factor analysis, stepwise regression, path analysis and cluster analysis. traits including flowering ability, number, length a...

D be the number of pairs of objects that are placed in the same class in and in the same cluster in , E be the number of pairs of objects in the same class in but not in the same cluster in , F be the number of pairs of objects in the same cluster in but not in the same class in , and G be the number of pairs of objects in different classes and different clusters in both partitions. The quantit...