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personal data approved: 2020. II. 01.
Personal data
János Sztrik
name János Sztrik
name of institution
doctoral school
DE Doctoral School of Mathematical and Computational Sciences (Academic staff member)
DE Doctoral School of Informatics (Core member)
Műszaki Tudományi Habilitációs Bizottság
Council of the Doctoral School (chairman)
DE 
Természettudományi és Informatikai Doktori Tanács
BME Doctoral School of Electrical Engineering
(discipline) Habilitation Comittee and Doctoral Council (external member)
the share of work in the different doctoral schools. DE Doctoral School of Mathematical and Computational Sciences 3%
DE Doctoral School of Informatics 96%
DE UD-DSI Műszaki Tudományi Habilitációs Bizottság 1%
accreditation statement submitted to: University of Debrecen
HAC accreditation
full compliance
(2019. VI. 28.)
Contact details
E-mail address sztrik.janosinf.unideb.hu
phone number +36 52 512-900/75011
own web page
Academic title
scientific degree, title Ph.D.
year degree was obtained 1980
discipline to which degree belongs mathematics and computing
institution granting the degree Kossuth Lajos Tudományegyetem (to be translated)
scientific degree, title DSc
year degree was obtained 2002
discipline to which degree belongs computer sciences
institution granting the degree HAS
Employment
1996 - University of Debrecen
university professor or researcher
Thesis topic supervisor
number of doctoral students supervised until now 12
number of students who fulfilled course requirements 9
students who obtained their degrees:
(50%) Szabolcs Szilágyi PhD 2015  UD-DSI
(50%) Gergely Kocsis PhD 2013  UD-DSI
Tamás Márton Bérczes PhD 2011  UD-DSI
Péter Orosz PhD 2010  UD-DSI
János Roszik PhD 2007  DSMCS-DE
Béla Almási PhD 1998  

completed course requirement, without degree or degree granting in process:
János Kernács (PhD) 2013/08  UD-DSI
Zsolt Márkus (PhD) 2012/08  UD-DSI
Ádám János Fazekas (PhD) 2014/08  UD-DSI
Hamza Nemouchi (PhD) 2017/08  UD-DSI
present PhD students:
Mohamed Hedi Zaghouani (PhD) (2021/08)  UD-DSI
Ádám Tóth (PhD) (2020/08)  UD-DSI
  Thesis topic proposals
Research
research area queueing theory, performance evaluation, performance modelling of complex infocommunication systems
research field in which current research is conducted computer sciences
mathematics and computing
Publications
2019

Nazarov Anatoly, Sztrik János, Kvach Anna, Tóth Ádám: Asymptotic sojourn time analysis of finite-source M/M/1 retrial queueing system with collisions and server subject to breakdowns and repairs, ANNALS OF OPERATIONS RESEARCH
type of document: Journal paper/Article
language: English
URL 
2019

Sudyko E, Nazarov AA, Sztrik J: Asymptotic waiting time analysis of a finite-source M/M/1 retrial queueing system, PROBABILITY IN THE ENGINEERING AND INFORMATIONAL SCIENCES 33: (3) pp. 387-403.
type of document: Journal paper/Article
language: English
URL 
2019

Anatoly Nazarov, János Sztrik, Anna Kvach, Tamás Bérczes: Asymptotic analysis of finite-source M/M/1 retrial queueing system with collisions and server subject to breakdowns and repairs, ANNALS OF OPERATIONS RESEARCH 277: (2) pp. 213-229.
type of document: Journal paper/Article
number of independent citations: 2
language: English
URL 
2018

Dmitry Efrosinin, Janos Sztrik: An algorithmic approach to analysing the reliability of a controllable unreliable queue with two heterogeneous servers, EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 271: (3) pp. 934-952.
type of document: Journal paper/Article
number of independent citations: 1
language: English
URL 
2016

Tien Van Do, Denes Papp, Ram Chakka, Jinting Wang, Janos Sztrik: A closed-form solution for a two-server heterogeneous retrial queue with threshold policy, SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES ́̃41: (8) pp. 817-823.
type of document: Journal paper/Article
number of independent citations: 1
language: English
URL 
2007

Sztrik János, Roszik János: Performance analysis of finite-source retrial queues with nonreliable heterogeneous servers, JOURNAL OF MATHEMATICAL SCIENCES (NEW YORK) 146: (4) pp. 6033-6038.
type of document: Journal paper/Article
number of independent citations: 25
language: English
URL 
2005

Almási B., Roszik János, Sztrik János: Homogeneous finite-source retrial queues with server subject to breakdowns and repairs, MATHEMATICAL AND COMPUTER MODELLING 42: (5-6) pp. 673-682.
type of document: Journal paper/Article
number of independent citations: 58
language: English
URL 
1993

Sztrik János, Bunday B. D.: Machine interference problem with a random environment, EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 65: (2) pp. 259-269.
type of document: Journal paper/Article
number of independent citations: 18
language: English
URL 
1990

Sztrik János, Gál T.: A recursive solution of a queueing model for a multi-terminal system subject to breakdowns, PERFORMANCE EVALUATION 11: pp. 1-7.
type of document: Journal paper/Article
number of independent citations: 28
language: English
URL 
1985

Sztrik János: On the finite-source G/M/r queues, EUROPEAN JOURNAL OF OPERATIONAL RESEARCH 20: (2) pp. 261-268.
type of document: Journal paper/Article
number of independent citations: 29
language: English
URL 
Number of independent citations to these publications:162 
Scientometric data
list of publications and citations
number of scientific publications that meet accreditation criteria:
386
number of scientific publications:
315
monographs and professional books:
6
monographs/books in which chapters/sections were contributed:
5 
art/engineering creative works:
0
scientific publications published abroad that meet the accreditation criteria:
181
publications not in Hungarian, published in Hungary, meeting the accreditation criteria:
66
number of independent citations to scientific publications and creative works:
792

 
All rights reserved © 2007, Hungarian Doctoral Council. Doctoral Council registration number at commissioner for data protection: 02003/0001. Program version: 2.2358 ( 2017. X. 31. )