Optimization for Date Redistributed System with Applications

Abstract

In this paper we intend to define a strategy for managing databases with mobile structures, taking into account their redistribution in the nodes of a computer network. The minimal cost of the redistribution is highlighted and some applications for medical and business databases are presented.

Measuring Patients’ Perception and Satisfaction with the Romanian Healthcare System

“…As the aim of a study is mainly exploratory and descriptive, the present research uses the snowball sampling technique [38][39][40]. This sampling technique offers practical advantages such as having the social networks of identified participants that can provide an ever-expanding set of potential contacts [39][40][41]. Sampling continues until data saturation [42].…”

“…Sampling continues until data saturation [42]. Snowball sampling is a more formal methodology that allows inferences to be made about a population of individuals who have been difficult to count by descending methods such as household surveys [39][40][41].…”

“…An 18 questions questionnaire was designed and administered to get insights on the perceptions and attitudes of Romanian patients about the healthcare system. Structured (multiple choice and scale questions concerning importance) and unstructured questions (for occupation and residence) were used [38,41,48].…”

“…Items were scored on a 5-point Likert scale (1-very poor, 5-very good) [38] evaluating the accommodation conditions, food, medical equipment, facilities/equipment, confidence in doctors and nurses, care quality provided and doctors and nurses attitudes. Table 1 contains descriptive statistics of the above scores and also the Cronbach's Alpha coefficient [41,48].…”

Efficient Data Organisation in Distributed Computer Systems using Data Warehouse

“…We can achieve such zones with a not very complex algorithm and in the zones we can efficiently exploit the distributed database [11], [13].…”