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Nikos Efthymiadis

Visual Recognition Group
PhD Candidate

About Me

I am a Ph.D. candidate in the Visual Recognition Group at the Department of Cybernetics, Czech Technical University in Prague under the supervision of Professor Ondrej Chum and Associate Professor Giorgos Tolias, working on the topic of "Cross-Domain Learning with Limited Supervision".


I received my engineering degree from the School of Applied Mathematical and Physical Sciences at the National Technical University of Athens, and a M.Sc. in Data Science and Information Technologies from the National and Kapodistrian University of Athens.

What's New

Publications

Paper 5 Image

ILIAS: Instance-Level Image retrieval At Scale

G. Kordopatis-Zilos, V. Stojnić, A. Manko, P. Šuma, N. Efthymiadis, N. A. Ypsilantis, Z. Laskar, J. Matas, O. Chum, G. Tolias

2025 CVPR [arxiv] [project] [code] [bibtex]

Paper 4 Image

Composed Image Retrieval for Training-Free Domain Conversion

N. Efthymiadis, B. Psomas, Z. Laskar, K. Karantzalos, Y. Avrithis, O. Chum, G. Tolias

2025 WACV [arxiv] [project] [code] [poster] [video] [bibtex]

Paper 3 Image

Crafting Distribution Shifts for Validation and Training in Single Source Domain Generalization

N. Efthymiadis, G. Tolias, O. Chum

2025 WACV [arxiv] [project] [code] [poster] [video] [bibtex]

Paper 2 Image

Composed Image Retrieval for Remote Sensing

B. Psomas, I. Kakogeorgiou, N. Efthymiadis, G. Tolias, O. Chum, Y. Avrithis, K. Karatzalos

2024 IGARSS [pdf] [arxiv] [code] [bibtex]

Paper 1 Image

Edge Augmentation for Large-Scale Sketch Recognition without Sketches

N. Efthymiadis, G. Tolias, O. Chum

2022 ICPR [pdf] [arxiv] [project] [code] [video] [bibtex]