نتایج جستجو برای: data bases
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Whenever a database permits textual entry of information | for example when data is copied from a paper form | the database is likely to contain duplicates and inconsistencies. These duplicates must be removed and inconsistencies resolved in order to mine the data or to use the data for decision support. We term the domain-speci c solution to duplicate and inconsistency removal data standardiza...
the present research has been carried out to study the structure of indexing language databases of irandoc. three databases have been selected as a sample: iranian dissertation abstracts. directory of scientific meetings held in iran. current research in iranian universities and research centers. some descriptors have been selected as a sample for study. to analyze the descriptors checklist was...
the aim of this study was to examine the relationship between coaches' bases of power and athletes’ satisfaction in female handball players of iran pro league. the study used a descriptive – correlation approach and was carried out as a field study. the population of the study consisted of all female handball players in iran pro league; statistical sample consisted of 115 handball players....
BACKGROUND The development of new wireless communication technologies that emit radio frequency electromagnetic fields (RF-EMF) is ongoing, but little is known about the RF-EMF exposure distribution in the general population. Previous attempts to measure personal exposure to RF-EMF have used different measurement protocols and analysis methods making comparisons between exposure situations acro...
We construct bivariate local trigonometric bases on a \two-overlapping" triangular grid. A main result is the description of various trigonometric bases on triangles, satisfying parity conditions at the edges. Moreover, we introduce folding operators for the triangular grid. From these results we derive assertions on Riesz stability and the bi-orthogonal basis.
This paper compares the accuracy of combined classifiers in medical data bases to the same knowledge discovery techniques applied to generic data bases. Specifically, we apply Bagging and Boosting methods for 16 medical and 16 generic data bases and compare the accuracy results with a more traditional approach (C4.5 algorithm). Bagging and Boosting methods are applied using different numbers of...
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