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به نام خدا

Title: Decision making with a fuzzy ontology

Authors: Christer Carlsson Matteo Brunelli Jozsef Mezei

Abstract: Knowledge mobilisation is a transition from theprevailing knowledge management technology that has beenwidely used in industry for the last 20 years to a new meth-odology and some innovative methods for knowledge rep-resentation, formation and development and for knowledgeretrieval and distribution. Knowledge mobilisation aims atcoming to terms with some of the problems of knowledgemanagement and at the same time to introduce new theory,new methods and new technology. More precisely, this paperpresents an outline of a fuzzy ontology as an enhanced ver-sion of classical ontology and demonstrates some advantagesfor practical decision making. We show that a number of softcomputing techniques, e.g. aggregation functions and inter-val valued fuzzy numbers, will support effective and practicaldecision making on the basis of the fuzzy ontology. Wedemonstrate the knowledge mobilisation methods with theconstruction of a support system for finding the best availablewine for a number of wine drinking occasions using a fuzzywine ontology and fuzzy reasoning methods; the supportsystem has been implemented for a Nokia N900 smart phone.   

Publish Year: 2012

Published in: Soft Computing - Springer

Number of Pages: 10

موضوع: منطق فازی، تصمیم گیری

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به نام خدا

Title: Electromagnetic Interference with RFID Readers in Hospitals

Authors: Yue Ying, Dirk Fischer, Uvo Hlscher

Abstract: Radio frequency identification (RFID) applications have become popular in many areas. RFID uses wireless technology to transmit information stored within a RFID-tag to a RFID-reader. Passive RFID-tags are powered through the received signal from the reader. Therefore the reader has to transmit its request with a certain power to bridge the gap between reader and tag. In contrast to bar-code technology this technique allows communication without requiring a line of sight. The RFID-technology is beginning to be introduced in medical environment, e.g. for patient tracking, staff location, inventory management etc. Implementation of this technology in medical environment has to guarantee the patients_ safety. However the electromagnetic field generated by the RFID-readers may interfere with medical devices. This study evaluates the electromagnetic interference of RFID-readers with medical devices, discusses the results with respect to the safety standards and proposes a process to manage the risks associated with RFID-technology in medical environment.   

Publish Year: 2009

Published in: IFMBE - Springer

Number of Pages: 4

موضوع: RFID

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به نام خدا

Title: Qcompiler: Quantum compilation with the CSD method

Authors: YG Chen, JB Wang 

Abstract: In this paper, we present a general quantum computation compiler, which maps any given quantum algorithm to a quantum circuit consisting a sequential set of elementary quantum logic gates based on recursive cosine sine decomposition. The resulting quantum circuit diagram is provided by directly linking the package output written in LaTeX to Qcircuit.tex We illustrate the use of the Qcompiler package through various examples with full details of the derived quantum circuits. Besides its accuracy, generality and simplicity, Qcompiler produces quantum circuits with significantly reduced number of gates when the systems under study have a high degree of symmetry.  

Publish Year: 2013

Published in: Computer Physics Communications - Science Direct

Number of Pages: 13

موضوع: رایانش کوانتوم ، فیزیک

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Title: An efficient parallel architecture for ray-tracing

Authors: Alexandre S Nery Nadia Nedjah Felipe M G Franca

Abstract: Real time rendering of three-dimensional scenes in high photorealistic details is a hard task, such as in the ray tracing rendering algorithm. In general, the performance achieved by a sequential software-based implementation of ray tracing is far from satisfactory. However, parallel implementations of ray tracing have been enabling reasonable real time performance, as the algorithm is embarrassingly parallel. Thus, a custom parallel design in hardware is likely to achieve an even higher performance. In this paper, we propose a hardware parallel architecture capable of dealing with the main desirable features of ray tracing, such as shadows and reflection effects, imposing low area cost and a promising rendering performance. Such architecture, called Grid RT, is based on the Uniform Grid acceleration structure and is intended to deliver massive parallelism through parallel ray-triangle intersection tests as well as parallel processing of many rays. A hardware implementation of the proposed architecture is presented, together with some performance results and resources requirements. The rendering is reduced by 80% using a grid configuration of eight processing elements.   

Publish Year: 2012

Published in: Analog Integrated Circuits and Signal Processing - Journal of Springer

Number of Pages: 14

موضوع: پردازش موازی

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Title: A Machine Learning-based Usability Evaluation Method for eLearning Systems

Authors: Asil Oztekin, Dursun Delen, Ali Turkyilmaz, Selim Zaim 

Abstract: The research presented in this paper proposes a new machine learning-based evaluation method for assessing the usability of eLearning systems. Three machine learning methods (support vector machines, neural networks and decision trees) along with multiple linear regression are used to develop prediction models in order to discover the underlying relationship between the overall eLearning system usability and its predictor factors. A subsequent sensitivity analysis is conducted to determine the rank-order importance of the predictors. Using both sensitivity values along with the usability scores, a metric (called severity index) is devised. By applying a Pareto-like analysis, the severity index values are ranked and the most important usability characteristics are identified. The case study results show that the proposed methodology enhances the determination of eLearning system problems by identifying the most pertinent usability factors. The proposed method could provide an invaluable guidance to the usability experts as to what measures should be improved in order to maximize the system usability for a targeted group of end-users of an eLearning system.   

Publish Year: 2013

Published in: Decision Support Systems - Science Direct

Number of Pages: 4

موضوع: یادگیری ماشین (Machine Learning) – آموزش الکترونیک (eLearning)

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