STSM – Olivera Novović


Olivera Novović


Institute BioSense, Novi Sad, Serbia

Corresponding WG

WG 1, 4

Grant research topic

Big Data frameworks for processing mobile phone data

Hosting Institution

Aristotle University, Thessaloniki, Greece


2017-02-19 to 2017-03-05

Summary of the scientific report

the beginning of the visiting period, Prof. Apostolos N. Papadopouls
made a short introductory lecture about Apache Spark and programing
language Scala. We also discussed specifics of Spark’s GraphX library
for graph mining. The following days we discussed possible algorithms
that could be applied on mobile phone data graphs. We also spent some
time setting up the environment IntelliJ IDEA for programing in Scala.
We generated top10 page rank results using Scala and Spark on the graphs
that were previously prepared. During the discussion about algorithms
that could be applied we decided based on the nature of mobile phone
data, to try community detection. With the exceptional assistance of
Prof. Papadopouls I went over theory basics on modularity based approach
for community detection algorithms. In the next few days I succeeded
to generate communities for the mobile phone data graphs using Louvain

Personal notes

was a great pleasure working in DeLab together with Prof. Papadopouls.
I’ve been provided with an office at the DeLab (Data Engineering
Laboratory), Department of Informatics, Aristotle University of
Thessaloniki. It was a really great experience and the knowledge that I
gained during my visit is of exceptional value for my future research.