Výsledky vyhľadávania
Názov Postmodifiers preserving monotony Aut.údaje Michaela Bruteničová, Vladimír Janiš Autor Bruteničová Michaela 1995- (50%) UMBFP10 - Katedra matematiky
Spoluautori Janiš Vladimír 1963- (50%) UMBFP10 - Katedra matematiky
Zdroj.dok. International Symposium on Fuzzy Sets : Uncertainty modelling : abstracts. 2023), Pp. 26-27. - Rzeszów : Wydawnictwo Uniwersytetu Rzeszowskiego, 2023 ; International Symposium on Fuzzy Sets medzinárodné sympózium Kľúč.slová fuzzy množiny - fuzzy sets konvexnosť - convexity teória rozhodovania Form.deskr. abstrakty - abstracts Jazyk dok. angličtina Krajina Poľsko Anotácia A comparison between two fuzzy sets can be done by different comparison measures, by considering different points of view. In some cases these are measures of the equality degree (e.g. similarity measures) and in other cases the difference degree (e.g. dissimilarity measures, divergence measures and distance measures). Among these measures, divergences appear as a good alternative in some cases. URL Link na zdrojový dokument Kategória publikačnej činnosti AFG Číslo archívnej kópie 54078 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov Convexity in betweenness structures Aut.údaje Huidobro Pedro ... [et al.] Autor Huidobro Pedro 1994- (30%)
Spoluautori Alonso Pedro (10%)
Janiš Vladimír 1963- (50%)
Montes Susana (10%)
Zdroj.dok. Book of abstracts of the sixteenth International Conference on Fuzzy Set Theory and Applications. Pp. 41-42. - Ostrava : Vysoká škola báňská - Technická univerzita Ostrava, 2022 ; International Conference on Fuzzy Set Theory and Applications medzinárodná konferencia Kľúč.slová konvexnosť - convexity metriky - metrics fuzzy množiny - fuzzy sets matematika - mathematics Form.deskr. abstrakty - abstracts Jazyk dok. angličtina Krajina Česká republika Anotácia Výskum súvisu konvexnosti a relácie medziľahlosti. Charakterizácia funkcií generujúcich reláciu medziľahlosti v metrických priestoroch. URL Link na zdrojový dokument Kategória publikačnej činnosti BFA Číslo archívnej kópie 25233 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov Convexity of hesitant fuzzy sets based on aggregation functions Aut.údaje Pedro Huidobro ... [et al.] Autor Huidobro Pedro 1994- (50%) UMBFP10 - Katedra matematiky
Spoluautori Alonso Pedro (24%)
Janiš Vladimír 1963- (1%) UMBFP10 - Katedra matematiky
Montes Susana (25%)
Zdroj.dok. Computer Science and Information Systems. Vol. 18, no. 1 (2021), pp. 213-230. - Nový Sad : Department of Mathematics and Informatics, 2021 Kľúč.slová fuzzy množiny - fuzzy sets agregačné funkcie konvexnosť - convexity Form.deskr. články - journal articles Jazyk dok. angličtina Krajina RS Anotácia Convexity is one of the most important geometric properties of sets and a useful concept in many fields of mathematics, like optimization. As there are also important applications making use of fuzzy optimization, it is obvious that the studies of convexity are also frequent. In this paper we have extended the notion of convexity for hesitant fuzzy sets in order to fulfill some necessary properties. Namely, we have found an appropriate definition of convexity for hesitant fuzzy sets on any ordered universe based on aggregation functions such that it is compatible with the intersection, that is, the intersection of two convex hesitant fuzzy sets is a convex hesitant fuzzy set and it fulfills the cutworthy property. URL Link na plný text Kategória publikačnej činnosti ADM Číslo archívnej kópie 49614 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Orders preserving convexity under intersections for interval-valued fuzzy sets Aut.údaje Pedro Huidobro ... [et al.] Autor Huidobro Pedro 1994- (50%) UMBFP10 - Katedra matematiky
Spoluautori Alonso Pedro (24%)
Janiš Vladimír 1963- (1%) UMBFP10 - Katedra matematiky
Montes Susana (25%)
Zdroj.dok. Information processing and management of uncertainty in knowledge-based systems : 18th international conference on information processing and management of uncertainty in knowledge-based systems, IPMU 2020, Lisbon, Portugal, June 15-19, 2020, proceedings, part 3, Vol. 1239. S. 493-505. - Cham : Springer Nature Switzerland AG, 2020 ; International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems medzinárodná konferencia Kľúč.slová interval-valued fuzzy sets konvexnosť - convexity confidence intervals Form.deskr. príspevky v zborníku - proceedings papers Jazyk dok. angličtina Krajina Nemecko Anotácia Convexity is a very important property in many areas and the studies of this property are frequent. In this paper, we have extended the notion of convexity for interval-valued fuzzy sets based on differ- ent order between intervals. The considered orders are related and their behavior analyzed. In particular, we study the preservation of the convex- ity under intersections, where again the chosen order is essential. After this study, we can conclude the appropriate behavior of the admissible orders for this purpose. URL Link na plný text Link na konferenciu Link na konferenciu Kategória publikačnej činnosti AFC Číslo archívnej kópie 48583 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Názov Convexity of hesitant fuzzy sets Aut.údaje Vladimír Janiš, Susana Montes ... [et al.] Autor Janiš Vladimír 1963- (1%) UMBFP10 - Katedra matematiky
Spoluautori Montes Susana (49%)
Renčová Magdaléna 1975- (50%)
Zdroj.dok. Journal of Intelligent & Fuzzy Systems. Vol. 34, no. 4 (2018), pp. 2099-2102. - Amsterdam : IOS Press, 2018 Kľúč.slová fuzzy množiny - fuzzy sets konvexnosť - convexity rough sets Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Holandsko Systematika 51 Anotácia Abstract: We show that a definition of convexity based on the convexity of the score function does not guarantee preservation of convexity under intersections and provide a concept of convexity for hesitant fuzzy sets without this backdraw. We study the relationship between convex hesitant fuzzy sets and convex rough sets as their cuts Kategória publikačnej činnosti ADC Číslo archívnej kópie 44974 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Poset valued convexities Aut.údaje Vladimir Janiš ... [et al.] Autor Janiš Vladimír 1963- (90%) UMBFP10 - Katedra matematiky
Spoluautori Šešelja Branimir (5%)
Tepavčević Andreja (5%)
Zdroj.dok. Information sciences. Vol. 406-407, (2017), pp. 208-215. - New York : Elsevier Science Ltd., 2017 Kľúč.slová cuts poset valued mappings konvexnosť - convexity Jazyk dok. angličtina Krajina Spojené štáty Systematika 51 Anotácia We analyze cut properties of lattice and poset valued functions (fuzzy sets) of n- dimensional real variable with respect to convexity. In the lattice valued case, convexity of a fuzzy set is equivalent with the convexity of its standard cuts. Dealing with non stan- dard cuts, we show that unless the space of the values is a chain, such statement in gen- eral does not hold. We present analogue results in the more general setting of poset valued functions. We also prove that there exist lattice and poset valued functions whose cuts are precisely the convex sets of particular families. Our work is motivated by possible applica- tions of convex functions (e.g., in image processing) Kategória publikačnej činnosti ADC Číslo archívnej kópie 39596 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Generalized convexities related to aggregation operators of fuzzy sets Aut.údaje Susana Díaz ... [et al.] Autor Díaz Susana (5%)
Spoluautori Induráin Esteban (5%)
Janiš Vladimír 1963- (80%) UMBFP10 - Katedra matematiky
Llinares Juan Vicente (5%)
Montes Susana (5%)
Zdroj.dok. Kybernetika. Roč. 53, č. 3 (2017), s. 383-393. - Praha : Akademie věd České republiky, 2017 Kľúč.slová fuzzy množiny - fuzzy sets konvexnosť - convexity aggregation functions Jazyk dok. angličtina Krajina Česká republika Systematika 51 Anotácia We analyze the existence of fuzzy sets of a universe that are convex with respect to cer- tain particular classes of fusion operators that merge two fuzzy sets. In addition, we study aggregation operators that preserve various classes of generalized convexity on fuzzy sets. We focus our study on fuzzy subsets of the real line, so that given a mapping F : [0, 1] × [0,1] → [0,1], a fuzzy subset, say X, of the real line is said to be F-convex if for any x,y,z ∈ R such that x ≤ y ≤ z, it holds that μX(y) ≥ F(μX(x),μX(z)), where μX : R → [0,1] stands here for the membership function that defines the fuzzy set X. We study the existence of such sets paying attention to different classes of aggregation operators (that is, the corresponding functions F , as above), and preserving F -convexity under aggregation of fuzzy sets. Among those typical classes, triangular norms T will be analyzed, giving rise to the concept of norm convexity or T-convexity, as a particular case of F-convexity. Other different kinds of generalized convexities will also be discussed as a by-product Kategória publikačnej činnosti ADC Číslo archívnej kópie 40454 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Aggregation of convex intuitionistic fuzzy sets Aut.údaje Suzana Diaz ... [et al.] Autor Diaz Suzana (10%)
Spoluautori Induráin Esteban (10%)
Janiš Vladimír 1963- (70%) UMBFP10 - Katedra matematiky
Montes Susana (10%)
Zdroj.dok. Information sciences. Vol. 308, (2015), pp. 61-71. - New York : Elsevier Science Ltd., 2015 Kľúč.slová fuzzy množiny - fuzzy sets intuitionistic fuzzy sets konvexnosť - convexity aggregation functions Jazyk dok. angličtina Krajina Spojené štáty Systematika 51 Anotácia Aggregation of intuitionistic fuzzy sets is studied from the point of view of preserving vari- ous kinds of convexity. We focus on aggregation functions for intuitionistic fuzzy sets. These functions correspond to simultaneous separate aggregations of the membership as well as of the nonmembership indicators. It is performed by means of the so-called repre- sentable functions. Sufficient and necessary conditions are analyzed in order to guarantee that the composition of two intuitionistic fuzzy sets preserves convexity Kategória publikačnej činnosti ADC Číslo archívnej kópie 33029 Kategória ohlasu WU, Xiu-Yun - BAI, Shi-Zhong. On M-fuzzifying JHC convex structures and M-fuzzifying Peano interval spaces. In Journal of intelligent & fuzzy systems. ISSN 1064-1246, 2016, vol. 30, no. 4, pp. 2447-2458.
SONG, Yafei - WANG, Xiaodan - WU, Wenhua - LEI, Lei - QUAN, Wen. Uncertainty measure for Atanassov’s intuitionistic fuzzy sets. In Applied intelligence. ISSN 0924-669X, 2017, vol. 46, no. 4, pp. 757-774.
WU, Xiu Yun - LI, Er Qiang - BAI, Shi Zhong. Geometric properties of M-fuzzifying convex structures. In Journal of intelligent and fuzzy systems. ISSN 1064-1246, 2017, vol. 32, no. 6, pp. 4273-4284.
RASHID, Tabasam - BEG, Ismat. Convex hesitant fuzzy sets. In Journal of intelligent and fuzzy systems. ISSN 1064-1246, 2016, vol. 30, no. 5, pp. 2791-2796.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Aggregation operators preserving quasiconvexity Aut.údaje Vladimír Janiš, Pavol Kráľ, Magdaléna Renčová Autor Janiš Vladimír 1963- (34%) UMBFP10 - Katedra matematiky
Spoluautori Kráľ Pavol 1978- (33%) UMBFP12 - Inštitút matematiky a informatiky
Renčová Magdaléna 1975- (33%) UMBFP10 - Katedra matematiky
Zdroj.dok. Information sciences. Vol. 228 (2013), pp. 37-44. - New York : Elsevier Science Ltd., 2013 Kľúč.slová lattice valued fuzzy sets konvexnosť - convexity quasiconvexity aggregation operators Jazyk dok. angličtina Krajina Spojené štáty Systematika 51 Kategória publikačnej činnosti ADC Číslo archívnej kópie 25393 Kategória ohlasu PȨKALA, Barbara. Aggregation process and some generalized convexity and concavity. In Advances in intelligent systems and computing. ISSN 2194-5357, 2015, no. 322, pp. 23-31.
RASHID, Tabasam - BEG, Ismat. Convex hesitant fuzzy sets. In Journal of intelligent and fuzzy systems. ISSN 1064-1246, 2016, vol. 30, no. 5, pp. 2791-2796.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov T-convexity for lattice-valued fuzzy sets Aut.údaje Tania Iglesias ... [et al.] Autor Iglesias Tania (20%)
Spoluautori Montes Ignacio (20%)
Janiš Vladimír 1963- (40%) UMBFP10 - Katedra matematiky
Montes Susana (20%)
Zdroj.dok. ESTYLF 2012 : XVI Congreso Espanol sobre Tecnologias y lógica Fuzzy, Valladolid 1-3 febrero de 2012. S. 26-30. - Valladolid : Universidad de Valladolid, 2012 / Palmero Gregorio I. Sainz ; ESTYLF 2012 Congreso Espanol sobre Tecnologias y lógica Fuzzy Kľúč.slová kvázikonvexnosť agregačné operátory konvexnosť - convexity t-normy quasiconvexity t-norms aggregation operators Jazyk dok. angličtina Krajina Španielsko Systematika 51 Kategória publikačnej činnosti AFC Číslo archívnej kópie 23687 Kategória ohlasu BIELAWSKI, J. - TABOR, J. A t-norm embedding theorem for fuzzy sets. In Fuzzy sets and systems : an international journal in information science and engineering. ISSN 0165-0114, 2012, vol. 209, pp. 33-53.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ