Current Issue : October - December Volume : 2012 Issue Number : 4 Articles : 5 Articles
This paper deals with the split feasibility problem that requires to find a point closest to a closed\r\nconvex set in one space such that its image under a linear transformation will be closest to another\r\nclosed convex set in the image space. By combining perturbed strategy with inertial technique, we\r\nconstruct an inertial perturbed projection algorithm for solving the split feasibility problem. Under\r\nsome suitable conditions, we show the asymptotic convergence. The results improve and extend\r\nthe algorithms presented in Byrne 2002 and in Zhao and Yang 2005 and the related convergence\r\ntheorem....
Completeness, quality and real world data preparation is a key pre-requirement for efficient data mining. Database or Table with missing values complicates analysis and data mining. To overcome this situation, certain statistical techniques are required to be employed during the data preparation. With the help of statistical methods and techniques, we can recover incompleteness of missing data and reduce ambiguities. In this paper, we introduce two methods by which even and odd size missing block values are recovered. Whole study comprises numerical variables of time series data and semi time series data....
This paper deals with data reconstruction problem for a real disturbed soil-column experiment\r\nusing an optimal perturbation regularization algorithm. A purpose of doing the experiment is to\r\nsimulate and study transport behaviors of Ca2, Na, Mg2, K, SO 2-\r\n4 , NO -\r\n3 , HCO -\r\n3 , and Cl-\r\nwhen they vertically penetrating through sandy soils. By data analysis to breakthrough data of the\r\neight kinds of solute ions, two kinds of models describing their transport behaviors in the column\r\nare given. One is the advection-dispersion equation with time-dependent reaction terms suitable\r\nfor three ions of HCO -\r\n3 , NO -\r\n3 , and K, the other is the ordinary advection-dispersion equation\r\nsuitable for the rest ions. Furthermore, all the unknowns in each model are determined by utilizing\r\nthe optimal perturbation regularization algorithm, respectively, and then the breakthrough data for\r\neach considered ion are reconstructed successfully. The inversion results show that the advectiondispersion\r\nmodel with suitable time-dependent reaction terms can be utilized to describe the\r\nexperimental process and reconstruct the experimental data....
Nowadays, the Radio Frequency Identification RFID system enables the control of many devices\r\nover an open communication infrastructure ranging from a small home area network to the global\r\nInternet. Moreover, a variety of consumer products are tagged with remotely low-cost readable\r\nidentification electromagnetic tags to replace Bar Codes. Applications such as automatic object\r\ntracking, inventory and supply chain management, and Web appliances were adopted for years\r\nin many companies. The arbitration algorithm for RFID system is used to arbitrate all the tags\r\nto avoid the collision problem with the existence of multiple tags in the interrogation field of a\r\ntransponder. A splitting algorithm which is called Binary Search Tree BST is well known for\r\nmultitags arbitration. In the current study, a splitting-based schema called Merged Search Tree is\r\nproposed to capture identification codes correctly for anticollision. Performance of the proposed\r\nalgorithm is compared with the original BST according to time and power consumed during the\r\narbitration process. The results show that the proposed model can reduce searching time and\r\npower consumed to achieve a better performance arbitration....
Counting and Computations are necessary aspects in students’ number sense towards their understanding of Mathematics, hence the assessment of students’ proficiency in them. In this paper, we report the findings from a study of counting and computations in number sense proficiency of Senior Secondary School students in Bwari Area Council of Federal Capital Territory (FCT) Abuja, Nigeria. A total of 300 students, from Senior Secondary School students in Bwari Area Council of Federal Capital Territory (FCT) Abuja, Nigeria participated in this study. A majority (63%) of these students obtained C and D grades for their respective end of term school examinations. The design for this study was quantitative in nature where the data on students’ number concept sense of numbers was collected using number concept in Number Sense Test adapted from McIntosh et al, (1997). The results from this study indicate that students obtained a percentage of success rates ranging from 47.27% to 54.00% across the levels. There was no significant difference in the results between Senior Secondary 1 (SS1) students and Senior Secondary 2 (SS2) students and also between Senior Secondary 2(SS2) and Senior Secondary 2(SS2) students. The gender comparison shows that the male students obtained slightly higher score than their female counterparts. There was no significant difference in the performance of the male and female students. It seems there is an over reliance on paper and pencil computation neglecting intuitive understanding of numbers among these students....
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