The Selective-tracing Waveform Relaxation (STWR) algorithm, which combines good properties of traditional relaxation-based algorithms including WR and ITA, has been discussed. STWR is basically a WR algorithm, but it ...
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In forestry, it is important to be able to accurately determine the volume of timber in a harvesting site and the products that Could potentially be produced from that timber. We describe new terrestrial scanning tech...
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ISBN:
(纸本)9783642029974
In forestry, it is important to be able to accurately determine the volume of timber in a harvesting site and the products that Could potentially be produced from that timber. We describe new terrestrial scanning technology that can produce a greater volume of higher quality data about individual trees. We show, however, that scanner data still often produces an incomplete profile of the individual trees. We describe Cabar, a case-based reasoning system that can interpolate missing sections in the scanner data and extrapolate to the upper reaches of the tree. Central to Cabar's operation is a new asymmetric distance function, which we define in the paper. We report some preliminary experimental results that compare Cabar with a traditional approach used in Ireland. The results indicate that Cabar has the potential to better predict the market value of the products.
The purpose of this study was to explore students' learning satisfaction when applying concept mapping with computer assisted teaching tools and to reveal students' learning progress in Nanometer course. The r...
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The field of communication networks has witnessed tremendous growth in recent years resulting in a large variety of combinatorial optimization problems in the design and in the management of communication networks. On...
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The primary aim of this study was to examine the reliability and validity of a Turkish version of the Distance education Learning Environment Survey (DELES) in post-secondary distance education. The second aim was to ...
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Massive growth of the Internet traffic in last decades has motivated the design of high-speed optical networks. Resilient Packet Ring (RPR), also known as IEEE 802.17, is a standard designed for the optimized transpor...
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ISBN:
(纸本)9789896740146
Massive growth of the Internet traffic in last decades has motivated the design of high-speed optical networks. Resilient Packet Ring (RPR), also known as IEEE 802.17, is a standard designed for the optimized transport of data traffic over optical fiber ring networks. Its design is to provide the resilience found in SONET/SDH networks but instead of setting up circuit oriented connections, providing a packet based transmission. This is to increase the efficiency of Ethernet and IP services. In this paper, a weighted ring arc-loading problem (WRALP) is considered which arises in engineering and planning of the RPR systems (combinatorial optimization NP- complete problem). Specifically, for a given set of non-split and uni-directional point-to-point demands (weights), the objective is to find the routing for each demand (i.e., assignment of the demand to either clockwise or counter-clockwise ring) so that the maximum arc load is minimized. This paper suggests four variants of Particle Swarm Optimization (PSO), combined with a Local Search (LS) method to efficient non-split traffic loading on the RPR. Numerical simulation results show the effectiveness and efficiency of the proposed methods.
The past two decades have witnessed tremendous research activities in optimization methods for communication networks. One important problem in communication networks is the Terminal Assignment Problem. This problem i...
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ISBN:
(纸本)9789896740146
The past two decades have witnessed tremendous research activities in optimization methods for communication networks. One important problem in communication networks is the Terminal Assignment Problem. This problem involves determining minimum cost links to form a network by connecting a collection of terminals to a collection of concentrators. In this paper, we propose a Hybrid Ant Colony Optimization Algorithm to solve the Terminal Assignment Problem. We compare our results with the results obtained by the standard Genetic Algorithm, the Tabu Search Algorithm and the Hybrid Differential Evolution Algorithm, used in literature.
The accurate prediction of cyberspace situation is fundamental to intrusion prevention in large scale networks. After analyzing the cyberspace situation, a cyberspace situation prediction model based on gene expressio...
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作者：
Deryakulu, DenizBüyüköztürk, ŞenerÖzçinar, HüseyinAnkara University
Faculty of Educational Sciences Department of Computer and Instructional Technologies Education 06590 Cebeci-Ankara Turkey Başkent University
Faculty of Education Department of Secondary Science and Mathematics Education Ankara Turkey Ankara University
Faculty of Educational Sciences Department of Computer and Instructional Technologies Education Ankara Turkey
The main purpose of this study was to determine the predictors of academic achievement of student Information and Communications technologies (ICT) teachers with different learning styles. Participants were 148 studen...
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The main purpose of this study was to determine the predictors of academic achievement of student Information and Communications technologies (ICT) teachers with different learning styles. Participants were 148 student ICT teachers from Ankara University. Participants were asked to fill out a personal information sheet, the Turkish version of Kolb's Learning Style Inventory, Weinstein's Learning and Study Strategies Inventory, Schommer's Epistemological Beliefs Questionnaire, and Eysenck's Personality Questionnaire. Stepwise regression analyses showed that the statistically significant predictors of the academic achievement of the accommodators were attitudes and high school GPAs;of the divergers was anxiety;of the convergers were gender, epistemological beliefs, and motivation;and of the assimilators were gender, personality, and test strategies. Implications for ICT teaching-learning processes and teacher education are discussed.
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