Research Computing Services
Northwestern University
phone: +1 215 204 8 620
e-mail: dusan(at)ramljak(dot)rs
url: http://www.ramljak.rs/dusan
Born: Beograd, Serbia.
Citizenship: Serbian.
Sex: male.
Married with Ana, daughters Katarina and Lola.
Professional goals:
I am working on the position that allows me to put my scientific and practical experiences to advantage.
Here you can view details about my education.
2010-2018
PhD
Temple University
Computer and Information Sciences Department
Research focus: Efficient knowledge discovery at large sequence and temporal databases
GPA: 3.84/4.00
Thesis: "Data Driven High Performance Data Access"
Advisor Professor Dr Krishna Kant
1998-2000
Postgraduate courses
School of Electrical Engineering - University of Beograd
2000
Summer School in Aachen: Soft Computing in Medicine
RWTH Aachen in cooperation with Erudit
2000
Postgraduate Course: Fuzzy Control
Technical University of Danemark
1990-1998
Graduate Electrical Engineer (MS EE)
School of Electrical Engineering - University of Beograd
Dept. of Electronics, Telecommunications and Control Systems
Major subject: Automatic Control
Grades: subjects 8.0/10.0; thesis 10.0/10.0
Graduation paper: "Linearisation of 6 DOF missile model"
supervisor doc. Dr Zeljko Djurovic
Professional Experience:
2019-present
Adjunct Instructor at West Texas A&M University
2019
Computational and Data Science Workshop Facilitator at Northwestern University
2010-2019
Research Adjunct Professor at Temple University
Led the team of 6 graduate and 4 undergraduate students to improve storage systems performance, analyzed 1TB of workload data, improved up to 3 times by using heuristics we developed (Python, C++)
Analyzed 30 million hospital records to classify presence of diagnosis in the record based on co-occurrence, using modified pagerank to find relevant diagnosis and procedures and logistic regression for classification, getting comparable results to the classification accuracy when doctors notes are used (Scikit-learn)
Analyzed data from 200,000 MMORPG gamers to improve churn prediction, lowering RMS error 20% when using continuous CRF instead of multiple linear regression (Matlab)
Published 16 research papers and one book chapter, participated in writing DARPA, NSF, NIH grant proposals and reviewer on multiple conferences and journals
2016
System/Software Engineering Intern at HPE
Deployed a propriety HPE, and open source cloud and file system gateway to study impact of provenance on prefetching decisions, developed heuristics to get cache hit rate up to 2 times higher than traditional models
2009-2010
Professor at Electrotechnical High School Stari Grad
2006-2009
IT Consultant at US Steel Serbia d.o.o and Qualysoft Informatics
Main responsibilities included Network Services - Data Communications Management, but I was also in charge for DeskSide Support, Server HW Support, OS Management, Voice Networks Management, Video Management, Cable Infrastructure Management, Systems Monitoring, Remote Emergency Intervention, Maintenance and Incident Resolution
2005-2006
R&D Engineer at IMP Automatika
2004-2005
Technical Advisor at College of Railway Engineering
Basicaly I had the same duties like at the Faculty of Political Sciences.
Besides, I was responsible for Lego Robotics, Internet and Dancing courses. Also, I was Teaching Assistant for courses C++ and databases.
2004
Director of the Computer Centre at Faculty of Political scineces at
University of Belgrade
System Administration the same duties like on the previous position. Setup
and maintenance of the active directory and Anti Virus Software. Procurement
and maintenance of all software packages and computer related hardware used
within the Faculty. Responding to computer enquiries from staff,
recommending system hardware and peripherals, advising on operating system
choice, software suitability, compatibility and configuration, whilst taking
into account the requirements imposed by Faculty Teaching and Research
activities. Advising on trends and developments in operating systems,
software and hardware and their implications for current and future practice
and expectations. Website and forum administration - Assisting actual
webmaster in publishing to this site and being responsible for the security
of the information contained therein, in liaison with the PR team. Work on the maintenance and management of the
School web pages, database servers and content. Train staff in the use of
computer technology and associated software. I was also a Teaching Assitant
on the course Cybernetics and Informatics.
2003-2004
System (Network) Administrator at Computer and Telecommunications Centre at
National Ministry of Ecology and at Hidro-Meteorological Institute of
Serbia
My duties included, but were not limited to, installing and maintaining
servers, active equipment and Internet (TCP/IP) connections. Managing shared
resources, software and group policies, setting user permissions and access
rights. Arranging for the authorized access to the Internet. Arranging for
the opening of e-mail accounts. Routine back-up and archival of data. Setup
and maintaining the MySQL accounting server/database. Assisting the users in
terms of any kind of network and PC related problems including Virus related
problems for Windows users. Dealing promptly with faulty equipment
(workstations, scanners, printers and other computer peripherals), liaising
with the equipment warrantor or maintenance contractor, procuring and
replacing equipment as required. Upgrading specific software as required
ensuring minimum disruption to Centre activities. Maintaining software
license details and a machine registry. Assisting with the relocation of
machines as required. Configuring and support all machines connected to the
Centre Ethernet network so that maximum use may be made of global and local
network resources and information in an efficient, cost-effective and secure
manner. PC setup and support.
2001-2003
Research assistant at Institute for Systems and Robotics at IST
I worked on a project Channel Estimation for Equalization and Synchronization in OFDM Underwater
Acoustic Communication Systems. Work on the project was mainly the research
in two main areas Stochastic Filtering and Optimization - Non-linear
Programming. Besides the work on the project I assisted in teaching, helped
in organization and preparation of the experiments and took part in the OFDM
tests. Ocasionally I worked as System (Network) Administrator in the lab. I initiated making of the short movie about the Institute which was
shown on Serbian TV. I helped in organization of the 10th IEEE Mediterranean
conference on control and automation.
1999-2001
Technical Advisor at National Computer and Telecommunications Centre at
Yugoslav Federal Hydro Meteorological Institute
I worked as System (Network) Administrator. My duties in short were designing information
system from the scratch and after that administrating it. I have reorganized
whole system, increased security at all layers, installed new software,
installed Internet (TCP/IP) connections. I assisted webmaster in setting up
and maintaining the website. I was involved in project of designing and
installing brand new equipment for department as a designer. I was involved
in installing of the satellite link used to receive Hidro-Meteorological
Information. I cooperated with the firm EUnet in order to improve Internet
services.
Languages:
- English - read, write and speak - TOEFL score: 101/120
- French - read, write and speak
- Portuguese - read, write and speak
- Other Latin languages - limited knowledge
- Serbian and Croatian - native
- Other Slavic languages - limited knowledge
Computer skills:
- Data Science, Machine Learning, Social Network Analysis, Storage Systems, Computer Networks
- Parallel programming: MPI, OpenMP, Map Reduce
- Programming languages: Python, C, Matlab, Pascal, Fortran, Basic
- Operating systems: Linux, Cisco IOS, Unix, Vax VMS, Windows
- Applications: Matlab, ScikitLearn, Weka, Gephi, Matplotlib, TeX/LaTeX, MS Office (Word, Power Point, Excel, Access), Circa, Zope
Scholarships and Awards:
Guru Prize for MedUber Project, Local Hack Day, MLH sponsored hackathon, Temple University, Philadelphia 2017
1st Prize, Graduate Student Project Competition, Computer and Information Sciences Department, Temple University, Philadelphia 2013
ISR Research grant, 2001-2003
Scholarship from the Lola Corporation, 1988-1990.
Yugoslav federal competition of electrical engineering students: first place
in Informatics 1992.
Yugoslav federal school physics competitions: second place 1985.
Serbian republic high school competitions: third place 1986. and 1989.
2007
Semi finalist Wheelchair DanceSport World Cup Combi Class II Standard
2006
Gold Medalist IDO South-East European Championships
2006
Quarter finalist Wheelchair DanceSport World Championships Combi Class II Standard and Latin
2006
Silver Medalist IDO World Championships
2005-2006
Coordinator of Wheelchair Dancing project in Serbia
2005
Secretary General of Belgrade DanceSport Federation
2002
Dancing marathon
We danced 70 hours of given 101 - last 8 hours without any break & with the same high level of energy from the beginning till the end.
2001-2003
1998-2001
Art director at Yugoslav Dance Organization,
My duties in short were improving the quality of teaching dance, organising performances, championships, seminars.
1995-2010
1991-1998
LA, Ballroom and Show Dance Competitor,
1998 World championship in show dance (IDO) - semifinals;
1997 European championship in show dance (IDO) - semifinals;
1996/97 Yugoslav champion in show dance;
1995 International Cup in Novorusisk (Russia) - finals;
1994/95 Yugoslav championship Latin - finals;
1992/94 Yugoslav championship Latin - semifinals;
1992/93 First ranking in intermediate Latin.
As preparation for Competitions I had:
1995-1996 Folk dance lessons
1993-1995 Ballet - private lessons
1987-1997
Aikido & Real Aikido Instructor at WCRA,
1981-1987
1979-1981
1977-1997
