Welcome to my website

I am an associate professor at the Faculty of Electrical Engineering and Computer Science at the Leibniz University Hannover and member of the L3S Research Center. My research lies in the areas of Data Mining and Machine Learning and can be summarized as learning over complex data (like high-dimensional, multi-view, with limited labels) and data streams.

Prior to joining LUH, I was a post-doctoral researcher at the Ludwig-Maximilians-University (LMU) in Munich, Germany under the supervision of Prof. Hans-Peter Kriegel. I joined the group in 2010 as a post-doctoral fellow of the Alexander von Humboldt Foundation. I obtained my PhD from the Department of Informatics of University of Piraeus, Greece, under the supervision of Prof. Yannis Theodoridis. I hold a diploma in Computer Engineering & Informatics and an MSc in Computer Science, both from the Computer Engineering & Informatics Department (CEID), University of Patras, Greece.

Latest news:
-> July 2018: Our paper ``Entity-Level Stream Classification: Exploiting Entity Similarity to Label the Next Observation Referring to an Entity'' was accepted at IEEE DSAA 2018 in Turin, Italy.
-> June 2018: Our paper ``An Evaluation of Data Stream Clustering Algorithms'' has been accepted at Statistical Analysis and Data Mining journal.
-> June 2018: I am organizing the Dagstuhl Perspectives Workshop "10 years of Web Science: Closing the Loop", which will take place on 24-29 June 2018.
-> April 2018: Our paper ``Enriching Lexicons with Ephemeral Words for Sentiment Analysis in Social Streams'' was accepted at WIMS 2018 in Novi Sad, Serbia.
-> February 2018: Our paper ``Dealing with Bias via Data Augmentation in Supervised Learning Scenarios'' was accepted at BIAS - Bias in Information, Algorithms, and Systems workshop in Sheffield, UK.
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