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personal data approved: 2016. IX. 07.
Personal data
János Demetrovics
name János Demetrovics
year of birth 1946
name of institution
doctoral school
ELTE Doctoral School of Informatics (Core member)
(discipline) Doctoral Council
Council of the Doctoral School
accreditation statement submitted to: Eötvös Loránd University, Budapest
Contact details
E-mail address demetrovicssztaki.hu
phone number +36 1 279-6193
own web page
Academic title
scientific degree, title Ph.D.
year degree was obtained 1970
discipline to which degree belongs mathematics and computing
institution granting the degree MGU (to be translated)
scientific degree, title DSc
year degree was obtained 1981
discipline to which degree belongs computer sciences
institution granting the degree HAS
scientific degree, title Corresponding member of Hung. Acad. of Sci.
year degree was obtained 1987
discipline to which degree belongs mathematics and computing
institution granting the degree HAS
scientific degree, title Member of Hung. Acad. of Sci.
year degree was obtained 1995
discipline to which degree belongs computer sciences
institution granting the degree HAS
Employment
1982 - Eötvös Loránd University, Budapest
professor emeritus
1970 - MTA SZTAKI (research institute, not university)
research professor
Thesis topic supervisor
number of doctoral students supervised until now 7
number of students who fulfilled course requirements 7
students who obtained their degrees:
Nam Son Hua PhD 1991  
Éva Boros Péterné Gárdos PhD 1976  
Duc Thi Vu Candidate of sciences 1987  
Fonfria Miguel Candidate of sciences 1987  
László Szabó Candidate of sciences 1982  
The Khanh Ngo Candidate of sciences 1982  

completed course requirement, without degree or degree granting in process:
(50%) Attila Balaton (PhD) 2011/08  IDI2-ELTE
(50%) Bálint Zoltán Daróczy (PhD) 2009/08  IDI2-ELTE
  Thesis topic proposals
Research
research area Discrete mathematics. Database systems and models. Algebraic, combinatorial and logical methods in database systems. Theory of algorithms, complexity. Structural problems of many-valued logics
research field in which current research is conducted computer sciences
mathematics and computing
Publications
2014

Demetrovics J, Thi Vu Duc, Giang Nguyen Long: Metric based attribute reduction in dynamic decision tables, ANNALES UNIVERSITATIS SCIENTIARUM BUDAPESTINENSIS DE ROLANDO EOTVOS NOMINATAE SECTIO COMPUTATORICA 42: pp. 157-172.
type of document: Journal paper/Article
language: English
Full text 
2014

Demetrovics J, Son Hua Nam, Guban A: An algebraic approach to the study of market baskets and their classification, ANNALES UNIVERSITATIS SCIENTIARUM BUDAPESTINENSIS DE ROLANDO EOTVOS NOMINATAE SECTIO COMPUTATORICA 42: pp. 135-156.
type of document: Journal paper/Article
language: English
Full text 
2013

Demetrovics J, Thi Vu Duc, Giang Nguyen Long: A Distance-Based Method for Attribute Reduction in Incomplete Decision Systems, SERDICA-JOURNAL OF COMPUTING 7: (4) pp. 355-374.
type of document: Journal paper/Article
language: English
2013

Demetrovics J, Vu Duc Thi, Nguyen Long Giang: An Efficient Algorithm for Determining the Set of All Reductive Attributes in Incomplete Decision Tables, CYBERNETICS AND INFORMATION TECHNOLOGIES 13: (4) pp. 118-126.
type of document: Journal paper/Article
language: English
URL 
2011

Demetrovics János, Hua Nam Son, Gubán Ákos: An Algebraic Representation of Frequent Market Baskets and Association Rules, CYBERNETICS AND INFORMATION TECHNOLOGIES 11: (2) pp. 24-31.
type of document: Journal paper/Article
language: English
2008

Demetrovics J, Katona GOH, Miklós D: Functional dependencies distorted by errors, DISCRETE APPLIED MATHEMATICS 156: (6) pp. 862-869.
type of document: Journal paper/Article
number of independent citations: 6
language: English
DOI 
2005

Békéssy A, Demetrovics J : Adatbázis-szerkezetek, Budapest: Akadémiai Kiadó, 481 p.
type of document: Book/Monography
language: Hungarian
1992

Demetrovics J, Libkin L, Muchnik IB: Functional dependencies in relational databases: a lattice point of view, DISCRETE APPLIED MATHEMATICS 40: (2) pp. 155-185.
type of document: Journal paper/Article
number of independent citations: 30
language: English
DOI 
1987

Burosch G, Demetrovics J, Katona Goh: The Poset of Closures AS A Model of Changing Databases, ORDER-A JOURNAL ON THE THEORY OF ORDERED SETS AND ITS APPLICATIONS 4: (2) pp. 127-142.
type of document: Journal paper/Article
number of independent citations: 12
language: English
DOI 
1985

Demetrovics J, Furedi Z, Katona GOH: MINIMUM MATRIX REPRESENTATION OF CLOSURE OPERATIONS, DISCRETE APPLIED MATHEMATICS 11: pp. 115-128.
type of document: Journal paper/Article
number of independent citations: 37
language: English
DOI 
Number of independent citations to these publications:85 
Scientometric data
list of publications and citations
number of scientific publications that meet accreditation criteria (TV):
94
number of scientific publications (TV):
105
monographs and professional books (TV):
2
monographs/books in which chapters/sections were contributed:
4 
scientific publications published abroad that meet the accreditation criteria (TV):
64
publications not in Hungarian, published in Hungary, meeting the accreditation criteria (TV):
24
number of independent citations to scientific publications and creative works (TV):
300
further relevant information regarding accreditation (in Hungarian)
aspiránsok: Boros Péterné DTE Szabó László SZTE Ngo The Khanh ELTE Miguel Fonfria Cubai Egyetem Vu Duc Thi Vietnámi Akadémia Kutatóintézete Hua Nam Son Vietnámi Akadémia Kutatóintézete (to be translated)

 
All rights reserved © 2007, Hungarian Doctoral Council. Doctoral Council registration number at commissioner for data protection: 02003/0001. Program version: 1.2318 ( 2016. XI. 26. )