dr eng. Witold Andrzejewski
Assistant Professor
Contact
AddressPiotrowo 2
60-965 Poznan
Poland
Email
Phone+48 61 665-2965
Websitewww.cs.put.poznan.pl/wandrzejewski
Working AtPoznan University of Technology,
Institute of Computing Science
Assistant Professor @ PUT
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Hello. My name is Witold Andrzejewski. I am an assistant professor of Computer Science at Poznan University of Technology in Poznan, Poland. I received my PhD from Poznan University of Technology in 2008.

My main research interests include optimization of query processing of complex data structures and data mining via auxiliary structures (indices) as well as hardware acceleration and parallelization (GPU based) of some typical database and data mining operations. For details on my research please check out my papers. Student can also find lecture materials here.

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Work Experience
Jan 2015 - Oct 2015
Conference organizer
Organization of the Game Industry Conference devoted to all aspects of design and implementation of computer games.
Jan 2013 - Sep 2013
Conference chair
Organization of “GPUs in Databases 2013” workshop during 17th East-European Conference on Advances in Databases and Information Systems ADBIS 2013.
Jan 2012 - Sep 2012
Conference chair
Organization of “GPUs in Databases 2012” workshop during 16th East-European Conference on Advances in Databases and Information Systems ADBIS 2012.
Jan 2012 - Oct 2012
Conference chair and main director
Organization of “Game Creators Meeting 2012” (pol. “Zjazd Twórców Gier 2012”) ZTG 2012 conference during “Poznań Game Arena” event organized by International Poznań Fair.
Apr 2011 - Sep 2012
Proceedings chair
Organization of 16th East-European Conference on Advances in Databases and Information Systems ADBIS 2012.
Jan 2010 - Jun 2010
Proceedings chair
Organization of a 3rd National Scientific Conference “Data Processing Technologies” (pol. III Krajowa Konferencja Naukowa “Technologie Przetwarzania Danych”).
Nov 2008 - Jan 2009
Analyst
Business Process Modelling of Research and Project Department of Poznan University of Technology.
Nov 2008 - now
Assistant Professor
Conducting research and teaching at Poznan University of Technology as an assistant professor.
Oct 2008 - now
Academic Teacher
Teaching students about Databases and Internet Technologies at High School of Humanities and Journalism.
Oct 2007 - now
Academic Teacher
Teaching about Management Information Systems at Poznan College of Modern Languages.
May 2007 - Sep 2007
Proceedings chair
Organization of a 2nd National Scientific Conference “Data Processing Technologies” (pol. II Krajowa Konferencja Naukowa “Technologie Przetwarzania Danych”).
Sep 2007
Internet system administrator
Administration of a student recruitment system “Ksantypa 2”.
Jan 2007 - Jun 2007
Designer and consultant
Design and consultations during implementation of an internet student recruitment system “Ksantypa 2”, which cooperates with a set of instances of deanery system “Sokrates”.
May 2005 - Sep 2005
Conference Organizer
Organization of a 1st National Scientific Conference “Data Processing Technologies” (pol. I Krajowa Konferencja Naukowa “Technologie Przetwarzania Danych”).
Mar 2005 - Sep 2008
Assistant
Conducting research and teaching at Poznan University of Technology as an assistant.
Jul 2004
Analyst
Data analysis during KBN grant: “Processing of analytical and data mining queries in data warehouses”.
Jul 2003 - Jun 2004
Designer and programmer
Design and Implementation of an internet student recruitment system “Ksantypa”, which cooperates with a single instance of a deanery system “Sokrates”.
Since 1996
Scientist
Constant cooperation with Faculty of Chemical Technology at Poznan University of Technology by design and implementation of experimental data analysis methods.
1996
Designer and programmer
Cooperation with Karolinska Institute, Royal Academy in Stockholm. Design and implementation of a data correction and analysis program obtained from DSC-4 microcalorimeter.
Education
Feb 2005 - Sep 2008
Doctor of Technical Sciences
I have received my degree of Doctor of Technical Sciences from Poznan University of Technology in October 2008. My doctoral thesis titled “Indexing of Sequential Data” was a continuation of my research started during my masters thesis. It concerned indexing of sequences of sets of discrete data in order to support complex queries such subsequence, supersequence and similarity queries. The thesis received a distinction.
Oct 2003 - Feb 2005
Master of Science
I have received my degree of Master of Science from Poznan University of Technology in February 2005. My masters thesis was titled “An index for sequences of sets” and it tackled the problem of indexing timestamped sequences of sets in order to support subsequence, supersequence and similarity queries. The thesis received the highest available grade at the time.
Oct 2000 - Jul 2003
Engineer
I have received my degree of Engineer from Poznan University of Technology in July 2003. My diploma thesis was titled “Hierarchical Bitmap Index for Sets” and it described a new index for sets of discrete data which supports subset, superset and similarity queries. The thesis received the highest available grade at the time.
Grants
Jun 2013 - Dec 2013
Grant for young scientists 91-554/13 MK
Grant for young scientists titled “Mining collocation patterns on Graphics Processing Units”.
Apr 2007 - Apr 2008
PhD grant N206 011 32/1221
PhD grant titled “Indexing of sequential data”.
Rewards and Achievements
2005
Distinction
I have received a distinction in Polish Federation of Engineering Associations competition for the best masters thesis in the field of technology.
2005
Distinction
I have received a distinction in National Competition of Polish Information Processing Society for the best masters thesis in the field of computer science.
2005
Scholarship
I have received an Ignacy Łukasiewicz’s PGNIG Scholarship Fund reward for the best masters thesis.
2005
Achievement
I have finished my 2nd stage of studies at Poznan University of Technology half year before other students with best available grade. I have also received a medal for an outstanding student of Poznan University of Technology (only 3 students each year receive this award).
2004/2005
Scholarship
I have received a scholarship from Polish Ministry of Higher Education and Sports.
2004
Scholarship
I have received a Jan Adolf Gorecki’s scholarship.
2003/2004
Scholarship
I have received a scholarship from Polish Ministry of Higher Education and Sports.
2003
Achievement
I have finished my 1st stage of studies at Poznan University of Technology with best available grade.
2002/2003
Scholarship
I have received a scholarship from Poznan University of Technology for very good grades.
2001/2002
Scholarship
I have received a scholarship from Poznan University of Technology for very good grades.
2000
Reward
I have achieved 1st place in computer graphics competition “Grafkom 2000”.
1998/1999
Scholarship
I have received a scholarship from prime minister for the best student in high school.
1998
Reward
I have achieved 2nd place in computer graphics competition “Grafkom 1998”.
1998
Achievement
I have reached 2nd stage in National Geography Olimpiad for High School Students.
1998
Reward
I have received a 2nd order reward of the Poznan City Council for outstanding results during studies.
1997/1998
Scholarship
I have received a scholarship from prime minister for the best student in high school.
1997
Achievement
I have reached finals of the computer graphics competition “Grafkom 1997”.
Skills
Programming
C/C++
Java
Javascript
PHP
Operating systems
Linux
Windows
Computer graphics
OpenGL
WebGL
DirectX
GLSL
HLSL
Parallel programming
CUDA
OpenCL
DBMS
Oracle
PostgreSQL
MySQL
Web Technologies
HTML5
CSS3
PHP
J2EE
XML
Other
Teaching