An Enterprise Resource Planning (ERP) system is a highly complex, large, multi-task application that is used to manage production in companies and factories. It monitors and tracks every aspect of all factory-based ma...
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In 2008 a scientific paper written by Butz and al. [3] investigated Matching in Learning Classifier Systems. Matching represents at least 65% of the computational time when executing a classifier system as reported in...
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This paper gives an account of how traditional metadata application profiles are related to Web ontologies and Description Logics. It is shown that metadata profiles can be formalized into Description Logics;oddly eno...
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Physical Unclonable Functions (PUFs) based on Ring Oscillators (ROs) are a promising primitive for FPGA security. However, the quality of their implementation depends on several design parameters. In this paper, we sh...
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Detecting pedestrians in images is a key functionality to avoid vehicle-to-pedestrian collisions. The most promising detectors rely on appearance-based pedestrian classifiers trained with labelled samples. This paper ...
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ISBN:
(纸本)9781424469840;9781424469857
Detecting pedestrians in images is a key functionality to avoid vehicle-to-pedestrian collisions. The most promising detectors rely on appearance-based pedestrian classifiers trained with labelled samples. This paper addresses the following question: can a pedestrian appearance model learnt in virtual scenarios work successfully for pedestrian detection in real images? (Fig. 1). Our experiments suggest a positive answer, which is a new and relevant conclusion for research in pedestrian detection. More specifically, we record training sequences in virtual scenarios and then appearance-based pedestrian classifiers are learnt using HOG and linear SVM. We test such classifiers in a publicly available dataset provided by Daimler AG for pedestrian detection benchmarking. This dataset contains real world images acquired from a moving car. The obtained result is compared with the one given by a classifier learnt using samples coming from real images. The comparison reveals that, although virtual samples were not specially selected, both virtual and real based training give rise to classifiers of similar performance.
3D technology is becoming increasingly popular and new applications emerge as well as low cost hardware to enable fast 3D rendering and processing. An emerging aspect of 3D technology is measuring real-world objects t...
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ISBN:
(纸本)9781617823381
3D technology is becoming increasingly popular and new applications emerge as well as low cost hardware to enable fast 3D rendering and processing. An emerging aspect of 3D technology is measuring real-world objects that have been digitized in the form of a 3D model. To this end, 3D scanning technology has been introduced to create 3D representations of objects with a minimal error. In this work, we present the process of digitizing a dental plaster imprint to be used in medical applications or e-learning courses. Simultaneously, the error that occurs in each 3D modeling step is presented and discussed. Then, practical 3D measurements of the object are conducted, using opensource 3D processing tools. Our goal is to create a digital repository on the Web which would facilitate dental applications and e-learning.
Lightning risk assessment of a 170 kV GIS substation connected to the Hellenic transmission system through underground cables has been performed. Fast-front overvoltages impinging on the substation due to shielding fa...
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ISBN:
(纸本)9781849193191
Lightning risk assessment of a 170 kV GIS substation connected to the Hellenic transmission system through underground cables has been performed. Fast-front overvoltages impinging on the substation due to shielding failure and backflashover of the incoming overhead transmission lines have been computed with the aid of ATPEMTP simulations and evaluated with respect to the insulation level of the substation equipment. The mean time between failures of the substation is greatly reduced for higher tower grounding resistance and varies significantly among lightning attachment models employed for the evaluation of the lightning performance of the incoming overhead transmission lines. Implementation of the IEEE Std 1243:1997 in lightning risk assessment of substations imposes high requirements on protection against incoming fast-front overvoltage surges.
In recent years, the increasing importance of the computational systems biology is leading to an impressive growth of the knowledge of several real-life phenomena. In this framework, membrane computing is an emergent ...
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In [1], we presented a P system in order to study the evolution of the bearded vulture in the Pyrenees (NE Spain). Here, we present a new model that overcomes some limitations of the previous work incorporating other ...
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Extensive research in recent years has shown the benefits of cognitive radio technologies to improve the flexibility and efficiency of spectrum utilization. This new communication paradigm, however, requires a well-de...
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