János Demetrovics

Publication Activity (10 Years)

Years Active: 1972-2018
Publications (10 Years): 1

Top Topics

Logical Representation

Information Entropy

Top Venues

Publications

János Demetrovics, Hoang Minh Quang, Vu Duc Thi, Viet Anh Nguyen
An Efficient Method to Reduce the Size of Consistent Decision Tables. Acta Cybern. 23 (4) (2018)
János Demetrovics, Hua nam Son, Ákos Gubán
Logical Representation of Dependencies of Items and the Complexity of Customer Sets. BCI (Local) (2012)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós
Functional dependencies distorted by errors. Discret. Appl. Math. 156 (6) (2008)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós
On the security of individual data. Ann. Math. Artif. Intell. 46 (1-2) (2006)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós, Bernhard Thalheim
On the Number of Independent Functional Dependencies. FoIKS (2006)
János Demetrovics, András J. Molnár, Bernhard Thalheim
Relationship Design Using Spreadsheet Reasoning for Sets of Functional Dependencies. ADBIS (2006)
János Demetrovics, András J. Molnár, Bernhard Thalheim
Graphical Reasoning for Sets of Functional Dependencies. ER (2004)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós
On the Security of Individual Data. FoIKS (2004)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós
Functional Dependencies in Presence of Errors. FoIKS (2002)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós
Error-Correcting Keys in Relational Databases. FoIKS (2000)
Richard P. Anstee, János Demetrovics, Gyula O. H. Katona, Attila Sali
Low Discrepancy Allocation of Two-Dimensional Data. FoIKS (2000)
János Demetrovics, Vu Duc Thi
Describing Candidate Keys by Hypergraphs. Comput. Artif. Intell. 18 (2) (1999)
János Demetrovics, Attila Pethö, Lajos Rónyai
On 1-Representations of Integers. Acta Cybern. 14 (1) (1999)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós, Oleg Seleznjev, Bernhard Thalheim
Asymptotic Properties of Keys and Functional Dependencies in Random Databases. Theor. Comput. Sci. 190 (2) (1998)
János Demetrovics, Vu Duc Thi
Some Results About Normal Forms for Functional Dependency in the Relational Datamodel. Discret. Appl. Math. 69 (1-2) (1996)
Miklós Biró, János Demetrovics, Tibor Remzsö
Spreadsheet-Based Model Building and Multiple Criteria Group Evaluation Support. ER Workshop Challenges of Application and Challenges of Design (1996)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós, Oleg Seleznjev, Bernhard Thalheim
The Average Length of Keys and Functional Dependencies in (Random) Databases. ICDT (1995)
János Demetrovics, Vu Duc Thi
Some Remarks On Generating Armstrong And Inferring Functional Dependencies Relation. Acta Cybern. 12 (2) (1995)
János Demetrovics, Vu Duc Thi
Some Observations on the Minimal Armstrong Relations for Normalised Relation Schemes. Comput. Artif. Intell. 14 (5) (1995)
János Demetrovics, Vu Duc Thi
Armstrong Relations, Functional Dependencies and Strong Dependencies. Comput. Artif. Intell. 14 (3) (1995)
János Demetrovics, Corina Reischer, Dan A. Simovici, Ivan Stojmenovic
Enumeration of Function and Bases of Three-Valued Set Logic under compositions with Boolean Functions. ISMVL (1994)
János Demetrovics, Vu Duc Thi
Normal Forms and Minimal Keys in the Relational Datamodel. Acta Cybern. 11 (3) (1994)
János Demetrovics, Vu Duc Thi
Some Problems Concerning Keys for Relation Schemes and Relations in the Relational Datamodel. Inf. Process. Lett. 46 (4) (1993)
János Demetrovics, Vu Duc Thi
Some Problems Concerning Armstrong Relations of Dual Schemes and Relation Schemes in the Relational Datamodel. Acta Cybern. 11 (1-2) (1993)
János Demetrovics, Gyula O. H. Katona
A Survey of Some Combinatorial Results Concerning Functional Dependencies in Database Relations. Ann. Math. Artif. Intell. 7 (1-4) (1993)
János Demetrovics, Lajos Rónyai, Hua nam Son
Functional Dependencies among Boolean Dependencies. Ann. Math. Artif. Intell. 7 (1-4) (1993)
János Demetrovics, Leonid Libkin, Ilya B. Muchnik
Functional Dependencies in Relational Databases: A Lattice Point of View. Discret. Appl. Math. 40 (2) (1992)
János Demetrovics, Gyula O. H. Katona, Attila Sali
The Characterization of Branching Dependencies. Discret. Appl. Math. 40 (2) (1992)
János Demetrovics, Lajos Rónyai, Hua nam Son
On the Composition and Decomposition of Attributes and Tuples. ICDT (1992)
János Demetrovics, G. Hencsey, Leonid Libkin, Ilya B. Muchnik
On the Interaction Between Closure Operations and Choice Functions with Applications to Relational Database. Acta Cybern. 10 (3) (1992)
János Demetrovics, G. Hencsey, Leonid Libkin, Ilya B. Muchnik
Normal Form Relation Schemes: A New Characterization. Acta Cybern. 10 (3) (1992)
János Demetrovics, Lajos Rónyai
A Note on Intersection of Isotone Clones. Acta Cybern. 10 (3) (1992)
János Demetrovics, Gyula O. H. Katona, Dezsö Miklós
Partial Dependencies in Relational Databases and their Realization. Discret. Appl. Math. 40 (2) (1992)
Joachim Biskup, János Demetrovics, Leonid Libkin, Ilya B. Muchnik
On Relational Database Schemes Having Unique Minimal Key. J. Inf. Process. Cybern. 27 (4) (1991)
János Demetrovics, Lajos Rónyai, Hua nam Son
On the Representation of Dependencies by Propositional Logic. MFDBS (1991)
Gustav Burosch, János Demetrovics, Gyula O. H. Katona, Daniel J. Kleitman, Alexander A. Sapozhenko
On the Number of Databases and Closure Operations. Theor. Comput. Sci. 78 (2) (1991)
János Demetrovics, Masahiro Miyakawa, Ivo G. Rosenberg, Dan A. Simovici, Ivan Stojmenovic
Intersections of Isotone Clones on a Finite Set. ISMVL (1990)
János Demetrovics, Leonid Libkin, Ilya B. Muchnik
Functional Dependencies and the Semilattice of Closed Classes. MFDBS (1989)
János Demetrovics, Vu Duc Thi
Some results about functional dependencies. Acta Cybern. 8 (3) (1988)
János Demetrovics, Vu Duc Thi
On Keys in the Relational Data Model. J. Inf. Process. Cybern. 24 (10) (1988)
János Demetrovics, Vu Duc Thi
Relations and minimal keys. Acta Cybern. 8 (3) (1988)
János Demetrovics, Gy. Gyepesi, László Hannák, Tibor Remzsö, F. Urbánszki
LATOR - a Database Management System for Local Networks. AIMSA (1988)
János Demetrovics, László Hannák
Construction of Large Sets of Clones. Math. Log. Q. 33 (2) (1987)
János Demetrovics, Ho Thuan, Nguyen Xuan Huy, Le Van Bao
Translation of Relation Schemes, Balanced Relation Schemes and the Problem of Key Representation. J. Inf. Process. Cybern. 23 (2/3) (1987)
János Demetrovics, Gyula O. H. Katona
Extremal Combinatorial Problems of Database Models. MFDBS (1987)
Elöd Knuth, János Demetrovics, Ágnes Hernádi
On Transformation Properties of Conceptual Structures. ISMIS (1987)
Elöd Knuth, János Demetrovics, Ágnes Hernádi
Information System Design: Techniques and Software Support - Response. IFIP Congress (1986)
János Demetrovics, Zoltán Füredi, Gyula O. H. Katona
Minimum matrix representation of closure operations. Discret. Appl. Math. 11 (2) (1985)
János Demetrovics, Gy. Gyepesi
A note on minimal matrix representation of closure operations. Comb. 3 (2) (1983)
János Demetrovics, Gy. Gyepesi
Some generalized type functional dependencies formalized as equality set on matrices. Discret. Appl. Math. 6 (1) (1983)
János Demetrovics, Elöd Knuth, Péter Radó
Specification Meta Systems. Computer 15 (5) (1982)
János Demetrovics, Gy. Gyepesi
On the functional dependency and some generalizations of it. Acta Cybern. 5 (3) (1981)
János Demetrovics, Gyula O. H. Katona
Extremal Combinatorial Problems in Relational Data Base. FCT (1981)
János Demetrovics
Candidate Keys and Antichains. SIAM J. Algebraic Discret. Methods 1 (1) (1980)
A. Békéssy, János Demetrovics, László Hannák, Peter Frankl, Gyula O. H. Katona
On the number of maximal dependencies in a data base relation of fixed order. Discret. Math. 30 (2) (1980)
A. Békéssy, János Demetrovics
Contribution to the theory of data base relations. Discret. Math. 27 (1) (1979)
János Demetrovics
On the equivalence of candidate keys with Sperner systems. Acta Cybern. 4 (3) (1979)
János Demetrovics, László Hannák
The cardinality of closed sets in pre-complete classes in k-valued logics. Acta Cybern. 4 (3) (1979)
János Demetrovics
On the Number of Candidate Keys. Inf. Process. Lett. 7 (6) (1978)
János Demetrovics
On the main diagonal of sheffer functions. Discret. Math. 21 (1) (1978)
János Demetrovics
On the comparison of limit-logics by the simulation of finite-valued logic (in Russian). Acta Cybern. 2 (4) (1976)
János Demetrovics
On cardinal numbers of sets of precomplete classes in limit-logics (in Russian). Acta Cybern. 1 (4) (1972)