Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Horia F. Pop"'
Publikováno v:
Intelligent Systems with Applications, Vol 16, Iss , Pp 200117- (2022)
Clustering is an important task in pattern recognition with many applications in natural sciences and healthcare. However, in practical scenarios, it is often the case that the data cannot be easily separated into well distinguished groups for severa
Externí odkaz:
https://doaj.org/article/6ac0e83d9b3442f58a4f1a5fb859b6eb
Publikováno v:
Studia Universitatis Babes-Bolyai: Series Informatica, Vol 62, Iss 1 (2017)
Software metrics are of great importance in object-oriented design assessment. They quantify various aspects of design entities and play an important role in predicting design quality. Despite the fact that software metrics have become increasingly u
Externí odkaz:
https://doaj.org/article/8629f862eb6a4e09abec48aa7c8e4d92
Autor:
Militon Frentiu, Horia F. Pop
Publikováno v:
Studia Universitatis Babes-Bolyai: Series Informatica, Vol 55, Iss 4, Pp 3-8 (2010)
As editors of Studia UBB Informatica we have noticed that many papers contains some frequent errors. The best way to change this situation, to improve the quality of Studia papers, is to underline these frequent errors. And also, to offer a guide for
Externí odkaz:
https://doaj.org/article/3c3fa7ee353849e5b7c41ea0c4c33eda
Publikováno v:
The Scientific World Journal, Vol 1, Pp 369-390 (2001)
In this paper we discuss the classification results of cardiac patients of ischemical cardiopathy, valvular heart disease, and arterial hypertension, based on 19 characteristics (descriptors) including ECHO data, effort testings, and age and weight.
Externí odkaz:
https://doaj.org/article/7d34343725284f9cacb1edd8078a222a
Autor:
Grigore Călugăreanu, Horia F. Pop
Publikováno v:
Special Matrices. 10:251-257
We characterize the idempotent stable range 1, 2 × 2 matrices over commutative rings and in particular the integral matrices with this property. Several special cases and examples complete the subject.
Autor:
Grigore Călugăreanu, Horia F. Pop
Publikováno v:
Annals of the Alexandru Ioan Cuza University - Mathematics. 67:171-186
Autor:
Horia F. Pop, Grigore Călugăreanu
Publikováno v:
Analele Universitatii "Ovidius" Constanta - Seria Matematica. 28:83-88
We show that for two 2 × 2 integral matrices A, B, if the product AB is nil-clean then BA may not be nil-clean. Despite the fact that for many special cases, BA is also nil-clean, we finally found three counterexamples. All the way, the computer aid
Autor:
Horia F. Pop, Grigore Călugăreanu
Publikováno v:
Carpathian Journal of Mathematics. 36:391-399
We prove that trace 1 matrices over principal ideal domains are exchange and characterize 2 × 2 exchange matrices over commutative domains. In addition, we emphasize large classes of not exchange 2 × 2 and 3 × 3 integral matrices.
Publikováno v:
Studia Universitatis Babeș-Bolyai Chemia. 65:45-56
Publikováno v:
Studia Universitatis Babeș-Bolyai Chemia. 65:71-82