Developing a trust model using graph and ranking trust of social messaging system

Trust is an important issue in social interactions, especially in using cyberspace services. In this paper, a trust and evaluation model are proposed based on which the government can provide reliable services to users. The model is a distributed and hierarchical model. First, the number 12 trust criteria and the weight of these criteria were extracted using the analytical hierarchy process (AHP) and analytic network process (ANP) techniques. Second, to obtain the trust in the service examined, for each criterion, a graph of trusted entities is proposed. Then, a weighted graph with the number of trusted entities called trust pathways measure will be obtained. To test the model, the effect of the 12 criteria on three important evaluation factors over seven widely used social services was rated by three experts. The trust of each service was obtained, which was satisfactory as compared to a valid organizational evaluation. Finally, the correlation coefficient of this comparison was 70.37%, indicating that the results from this model were appropriate

Correct Mean Value Interpolation on Parabola II

In this paper bivariate mean-value interpolation problem, where interpolation parameters are integrals over same radius circles which their centers are on a parabola unless one of them not on it is considered. In this case the correctness of the problem is discussed

A Method to Diagnose, Improve, and Evaluate Children’s Learning Using Wearable Devices Such as Mobile Devices in the IoT Environment

Every day we see an increasing tendency to use technology in education. In recent years, the impact of technology on the education process has received much attention. One of the important effects of technology is that it increases children’s motivation and self-confidence and increases group collaboration. The purpose of this paper is to transform the traditional classroom into a modern classroom in order to increase the ease and efficiency of the teaching process. The method includes phases of diagnosis and improvement. In the diagnose phase, the classroom is equipped with modern items such as Internet of Things (IoT) and game-based learning. In the improvement phase, the field method is used to extract and weight the effective criteria in improving the educational status. The proposed method has been tested on two English language kindergartens. The children tested were in the age group of 8 to 10 years. In the implementation of the proposed educational method in the first English language kindergarten, the average improvement of education and learning of children has almost doubled, which has been maintained by doubling the number of children tested in the implementation of the proposed educational method in the second English language kindergarten. As a result, the proposed educational method can increase the learning performance of children

The Effect of dry Needling in Chronic Stroke with a complex Network Approach: A Case Study

Background: Dry Needling (DN) has been demonstrated to be effective in improving sensorimotor function and spasticity in patients with chronic stroke. Electroencephalogram (EEG) has been used to analyze if DN has effects on the central nervous system of patients with stroke. There are no studies on how DN works in patients with chronic stroke based on EEG analysis using complex networks. Objective: The aim of this study was to assess how DN works when it is applied in a patient with stroke, using the graph theory. Methods: One session of DN was applied to the spastic brachialis muscle of a 62-year-old man with right hemiplegia after stroke. EEG was used to analyze the effects of DN following metrics that measure the topological configuration: 1) network density, 2) clustering coefficient, 3) average shortest path length, 4) betweenness centrality, and 5) small-worldness. Measurements were taken before and during DN. Results: An improvement of the brain activity was observed in this patient with stroke after the application of DN, which led to variations of local parameters of the brain network in the delta, theta and alpha bands, and inclined towards those of the healthy control bands. Conclusions: This case study showed the positive effects of DN on brain network of a patient with chronic stroke