If you made any changes in Pure these will be visible here soon.

Personal profile

Research interests

Artificial Intelligence and Machine learning and their applications in emerging domains such as cybersecurity.

Research interests include:

  • Artificial Intelligence
  • Machine Learning
  • Cybersecurity

Supervisory Interests

I am interested in supervising postgraduate research students in

  • Artificial Intelligence
  • Machine Learning
  • Cybersecurity

I have sucessfully supervised:

- Gharbi Alshammari (Hydra: A hybrid framework that improves collaborative filtering recommendation quality)

I'm currently supervising:

- Abdullah Alshammari (Exploiting social media network structure to improve user profiles for short-text-based recommender systems)

Scholarly biography

Since February 2019, I have been a Senior Lecturer in the School of Computing, Engineering and Mathematics at the University of Brighton. Prior to this, I was a Lecturer from May 2018 to January 2019 and a Research Fellow from March 2017 to March 2018.

In terms of education, I obtained a BSc (Hons) from Heriot-Watt University in 2008, an MSc in Internet Software Systems from the University of Birmingham in 2011 and a PhD in Applied Informatics from the University of Macedonia (Greece) in 2017.

I have published more than 30 peer reviewed articles, served the wider community via various chairing roles and committee memberships for conferences and workshops (e.g. Special Session Organizer track on recommender systems REC 2019 held at the 11th International Conference on Computational Collective Intelligence ICCCI 2019, Workshop Chair at the 19th International Conference on Engineering Applications of Neural Networks EANN 2018, Publicity chair at the 10th International Conference on Computational Collective Intelligence ICCCI 2018 and program committee member for several other conferences) and by reviewing for a wide range of journals (e.g. IEEE Transactions in Systems, Man and Cybernetics: Systems, IEEE Access, Information Sciences, Expert Systems with Applications, Information Processing & Management, Journal of Information Science, PLOS one).  

Approach to teaching

Over the past few years I have taught a wide range of Computer Science topics covering the areas of Artificial Intelligence, Machine Learning, Cybersecurity and Web technologies in both undergraduate and postgraduate levels. I am enthusiastic about teaching and the modules that I teach. I adopt an interactive teaching approach where I aim to keep students engaged by asking questions and adapting accordingly. My teaching involves a variety of methods including lectures, practical exercises and assignments that encourage independent learning.

I have facilitated research into the curriculum by introducing the concept of Machine Learning for Cybersecurity for both my undergraduate and postgraduate courses. Furthermore, I have integrated research into final year undergraduate projects, which has led to scientific publications based on the project results and integrated relevant aspects of it into teaching.

 

Education/Academic qualification

PhD, University of Macedonia

Master, University of Birmingham

Bachelor, Heriot-Watt University

Keywords

  • QA75 Electronic computers. Computer science
  • Artificial Intelligence
  • Machine Learning
  • Cybersecurity

Fingerprint Dive into the research topics where Nikolaos Polatidis is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 3 Similar Profiles
Recommender systems Engineering & Materials Science
Collaborative filtering Engineering & Materials Science
Risk management Engineering & Materials Science
Supply chains Engineering & Materials Science
Personalized Recommendation Mathematics
User Modeling Mathematics
Information systems Engineering & Materials Science
Case based reasoning Engineering & Materials Science

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 2012 2019

  • 16 Article
  • 15 Conference contribution with ISSN or ISBN
  • 2 Paper

An explanation-based approach for experiment reproducibility in recommender systems

Polatidis, N., Papaleonidas, A., Pimenidis, E. & Iliadis, L., 27 May 2019, In : Neural Computing and Applications. p. 1-8

Research output: Contribution to journalArticle

Recommender systems
Collaborative filtering
Experiments

A novel recommendation method based on general matrix factorization and artificial neural networks

Kapetanakis, S., Polatidis, N., Alshammari, G. & Petridis, M., 26 Oct 2019, In : Neural Computing and Applications. p. 1-8

Research output: Contribution to journalArticle

Collaborative filtering
Factorization
Neural networks
Marketing

A switching approach that improves prediction accuracy for long tail recommendations

Alshammari, G., Jorro Aragoneses, J. L., Kapetanakis, S., Polatidis, N. & Petridis, M., 2019, (Accepted/In press) 4th Artificial Intelligence and Intelligent Systems Conference: Intellisys. Springer, (Advances in Intelligent Systems and Computing).

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

A switching multi-level method for the long tail recommendation problem

Alshammari, G., Jorro Aragoneses, J. L., Polatidis, N., Kapetanakis, S., Pimenidis, E. & Petridis, M., 15 Jul 2019, In : Journal of Intelligent and Fuzzy Systems. p. 1-10

Research output: Contribution to journalArticle

Open Access
File
Collaborative filtering
Recommender systems
Decision support systems
History

Activities 2015 2020

4th Artificial Intelligence and Intelligent Systems Conference

Nikolaos Polatidis (Member of programme committee)
5 Sep 20196 Sep 2019

Activity: EventsConference

11th International Conference on Computational Collective Intelligence, ICCCI 2019

Nikolaos Polatidis (Member of programme committee)
4 Sep 20196 Sep 2019

Activity: EventsConference

University of Rome La Sapienza

Marcus Winter (Visiting researcher), Andrew Fish (Visiting researcher), Nikolaos Polatidis (Visiting researcher)
10 Jun 201916 Jun 2019

Activity: Visiting positionVisiting an external academic institution