We discuss a new algorithm based on a network measure, local betweenness centrality (LBC), for search in complex networks that are heterogeneous in node degree and edge weights. LBC search utilizes both the heterogeneities and performs the best in scale-free weighted networks. We further argue that the amount of information used by LBC search could be optimal.

It is known that the fitted regression function based on conventional local smoothing procedures is not statistically consistent at jump positions of the true regression function. In this article, a curve-fitting procedure based on local piecewise-linear kernel estimation is suggested. In a neighborhood of a given point, a piecewise-linear function with a possible jump at the given point is fit...

objective: to examine the inter-rater reliability of triages performed by the electronic triage system (ets) which has recently developed and used in hospital emergency department (ed). methods: this cross-sectional study was conducted prospectively and studied 408 visitors of tabriz imam reza hospital’s ed. the variables of interest were age, sex, nurse-assigned triage category, physician-assi...

a weighted linear regression model with impercise response and p-real explanatory variables is analyzed. the lr fuzzy random variable is introduced and a metric is suggested for coping with this kind of variables. a least square solution for estimating the parameters of the model is derived. the result are illustrated by the means of some case studies.

for the successful tree establishment, an evaluation of land suitability is necessary.in this paper, we demonstrate how to implement fuzzy classification of land suitability in agis environment for afforestation with juglans regia in gharnaveh watershed of golestanprovince in iran. juglans regia is one of the most important agro-forestry species in manyrural parts of iran. relevant criteria for...

ecological changes resulting from climate conditions can severely affect human societies especially in the area of economy and safety. climate catastrophes may cause social and economic tension. forecasting such changes accurately can help the government to control the disasters and to achieve possible benefits (such as water supply in flood). weather forecasting is the application of science a...

The density estimates considered in this paper comprise a base density and an adjustment component consisting of a linear combination of orthogonal polynomials. It is shown that, in the context of density approximation, the coefficients of the linear combination can be determined either from a moment-matching technique or a weighted least-squares approach. A kernel representation of the corresp...

the mountains as the other natural environment are the main purposes for nature based tourism such as sport tourism and have a finite capacity for recreation development which differs from one place to another and naturally causes different type of tourism’s development. therefore land suitability is very important before tourism planning. some charactristics like geomorphological, biological a...