Christos Chatzis
Uncovering structure in high-dimensional and dynamic datasets.
About Me
I am currently a PhD student at Simula Metropolitan Center for Digital Engineering (SimulaMet) studying matrix and tensor factorizations, specifically for temporal data.
My background is on computer science, specializing in data mining and scientific computing. I am especially intrigued by unsupervised machine learning due to its capacity to discover patterns that are not predefined and relationships we did not even know to look for.
Education
Present - Ph.D. in Engineering Science, Simula Metropolitan Center for Digital Engineering
2022 - M.Sc. in Computer Science, National and Kapodistrian University of Athens
2020 - B.Sc. in Informatics & Telecommunications, National and Kapodistrian University of Athens
Research Interests
Tensor factorizations
Data Mining
Unsupervised Learning
Scientific Computing
Recent News
Our work tPARAFAC2: Tracking evolving patterns in (incomplete) temporal data is now published!
Our work dCMF: Learning interpretable evolving patterns from temporal multiway data is now published!
I presented at my talk Uncovering evolving patterns in temporal data with tensor decompositions at TRICAP (Three-way Methods in Chemistry and Psychology) 2025 workshop at Ålesund, Norway.