Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Aivars Lorencs"'
The paper addresses problems related to classification of images obtained by various types of remote sensing devices. Development and use of Bayes type land cover classifiers based on multidimensional Gaussian, Dirichlet and gamma distributions is an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28595a953ec387081ea37b7c6d705cb8
https://zenodo.org/record/1121403
https://zenodo.org/record/1121403
Autor:
Juris Sinica-Sinavskis, Aivars Lorencs
Publikováno v:
Automatic Control and Computer Sciences. 47:254-266
The paper discusses the properties of a two-stage Bayes classifier construction method in a case when the objects are represented with two quantitative features. The aim of the study was to show that, in general, the two-stage approach allows one to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::785c6c11e84c44464dead62d22c20c9b
https://doi.org/10.3103/s0146411613050040
https://doi.org/10.3103/s0146411613050040
Publikováno v:
2016 15th Biennial Baltic Electronics Conference (BEC).
The paper is focused on problems related to proper selection of relatively small number of bands from hyperspectral images ensuring sufficiently accurate classification of pixels into several defined categories. Two approaches to construction of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b42e94becd38fec1df270177d056ac1f
https://doi.org/10.1109/bec.2016.7743747
https://doi.org/10.1109/bec.2016.7743747
Publikováno v:
Elektronika ir Elektrotechnika. 22
The purpose of this paper is to offer a method for discrimination of cutaneous melanoma from benign nevus, founded on analysis of skin lesion image. At the core of method is calculation of mean and standard deviation of pixel optical density values f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6686b48d4ab1f44bb4980552698fb887
https://doi.org/10.5755/j01.eie.22.2.14594
https://doi.org/10.5755/j01.eie.22.2.14594
Publikováno v:
Automatic Control and Computer Sciences. 45:61-69
The paper is devoted to the applied problem of tree species classification from multispectral data obtained within aircraft overflight of the particular forest area. Theoretical background for solving the task is substantiated. Four versions of class
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd088a472ddbd5a1c082938ac85ba959
https://doi.org/10.3103/s0146411611020039
https://doi.org/10.3103/s0146411611020039
Publikováno v:
Automatic Control and Computer Sciences. 44:191-198
By analytical calculations and statistical modeling, the root-mean-square deviation of the result of discrete stroboscopic noise transformation is investigated with the up-and-down method at the relatively large range steps of the method. Analytical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f441e22a5c2991e3ad72749f65b225f6
https://doi.org/10.3103/s0146411610040024
https://doi.org/10.3103/s0146411610040024
Autor:
Aivars Lorencs
Publikováno v:
Automatic Control and Computer Sciences. 44:69-77
Linear regression models for the response, which depends on several controlled variables, are considered. The method of constructing such a plan of observations that provides the nondegeneracy of the information matrix of the regression model is subs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bdb1bae6d68d27c6bdbcf9eab5a30df
https://doi.org/10.3103/s0146411610020021
https://doi.org/10.3103/s0146411610020021
Publikováno v:
Proceedings of the Latvian Academy of Sciences. Section B, Natural Sciences, Vol 63, Iss 3, Pp 116-124 (2009)
Fast object detection in digital grayscale images The problem of specific object detection in digital grayscale images is considered under the following conditions: relatively small image fragments can be analysed (a priori information about the size
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57d8b3481b826ae551bcc942700301c9
https://doi.org/10.2478/v10046-009-0026-5
https://doi.org/10.2478/v10046-009-0026-5
Autor:
Jānis Buls, Aivars Lorencs
Publikováno v:
RAIRO - Theoretical Informatics and Applications. 42:467-475
The necessary and sufficient conditions are extracted for periodicity of bi-ideals. They cover infinitely and finitely generated bi-ideals.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa5c8f3b2ff2638ab262bea3dd88c1cb
https://doi.org/10.1051/ita:2008010
https://doi.org/10.1051/ita:2008010
Autor:
Aivars Lorencs
Publikováno v:
Acta Applicandae Mathematicae. 97:69-78
The subject of the paper is the probability-theoretic properties of elementary symmetric polynomials σk of arbitrary degree k in random variables Xi (i=1,2,…,m) defined on special subsets of commutative rings ℛm with identity of finite character
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f49b7d37f18878558a187d679102bd4
https://doi.org/10.1007/s10440-007-9137-7
https://doi.org/10.1007/s10440-007-9137-7