1,721,246 research outputs found
Electromagnetic scattering of an inhomogeneous elliptically polarized plane wave by a multilayered sphere
No full textVectorial spherical-harmonics representation of an inhomogeneous elliptically polarized plane wave
No full textElectromagnetic scattering by a buried sphere in a lossy medium of an inhomogeneous plane wave at arbitrary incidence: Spectral-domain method
No full text
A new Cursive Basic Word Database for Bank-check Processing Systems
No full textIn this paper is presented a new database for
handwritten cursive basic words recognition. The database
is devoted to research on bank-check processing. In fact,
for security reasons, the banks rarely allow the treatment
of checks handled by them. On the other hand, the reasons
for the English basic words choice lie in the fact that
English language is the world most commonly used for
bank-check drawing. The database realised includes a
considerable number of instances of basic words. Pattern
images are stored using a standard image format that will
be available to all researchers by Internet. The importance
of this work lies in the fact that the database is queried by
the network, giving the possibility to grow with the
contribution of others researchers. The tagging has been
generated by using the XML language that allows
recovering also information on the writers. Furthermore,
the information handled not only could allow the semantic
recognition of the specimen but also the research
development on the author identity of the manuscript. The
database is an open one to be increased with the
contribution of all others researchers in the world
Erratum: Cloaking using anisotropic multilayer circular cylinder (AIP Advances (2020) 10 (095312) DOI: 10.1063/5.0012769)
No full textCo-author Mehwish Nisar should have had an additional affiliation noted in the byline of our original manuscript.1 The correct affiliations for this manuscript are as listed above
ADAPTIVE ZONING DESIGN BY SUPERVISED LEARNING USING MULTI-OBJECTIVE OPTIMIZATION
No full textZoning is a widespread feature extraction technique for handwritten digit recognition, since it is able to handle handwritten pattern variability. Static techniques for zoning design have recently been superseded by adaptive techniques, in which zoning design is considered as the result of an optimization procedure. This paper presents a new learning strategy to optimal zoning design using multi-objective genetic algorithm. More precisely, the nondominant sorting genetic algorithm II (NSGA II) has been applied to define, in a single process, both the optimal number of zones and the optimal zones for the Voronoi-based zoning method. The experimental tests, carried out in the field of handwritten digit recognition, show the effectiveness of this new approach with respect to traditional dynamic approaches for zoning design, based on single-objective optimization techniques
A Novel Technique for Handwritten Digit Classification using Genetic Clustering
No full textThe aim of this paper is to introduce a novel technique for handwritten digit recognition based on genetic clustering. Cluster design is proposed as a two-step process. The first step is focused on generating cluster solutions, while the second one involves the construction of the best cluster solution starting from a set of suitable candidates. An approach for achieving these goals is presented. Clustering is considered as an optimization problem in which the objective function to be minimized is the cost function associated to the classification. A genetic algorithm is used to determine the best cluster centers to reduce classification time, without greatly affecting the accuracy. The classification task is performed by k-nearest neighbor classifier. It has also been developed a new feature and a distance measure based on the Sokal-Michener dissimilarity measure to describe and compare handwritten numerals. This technique has been evaluated through experimental testing on MNIST dataset and its effectiveness has been proved
Evoluzione della strumentazione di qualità in odontoiatria e in igiene dentale (Instruments quality progress in denstistry and dental hygiene)
No full textThe aim of the present paper is a brief but complete discussion about the newly available instruments for dental practice and for dental hygiene. The review start up from the first chair made specifically for dentists (using the design of a Windsor chair), today an operating table that loose the characteristics of the chairs of the last century and having a number of devices devoted to ameliorate the comfort for the patient and health operators. The review ends, after the analysis of the progress of the instrumentation used in the various fields of the dentistry (dental implants, orthodontics, dental prostheses, and so) and the oral hygiene, focusing the attention on the role of the dental units. In particular, the role of the water circulating into the system of the unit's internal circuits in the transmission and in the diffusion of infectious diseases is highlighted, as well as the available devices useful to limit the infectious risk
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