# 2019

May 15

Research grant GRAPES accepted

Apr 22

I am a Senior Member of IEEE

Apr 10

Technical report released at arXiv: Semi-Supervised Learning

Mar 29

Technical report released at arXiv: Smooth Adversarial Examples

Mar 13

Technical report released at arXiv: Few-Shot Learning

Mar 07

I give a talk on Semi-Supervised Learning at Inria Rennes-Bretagne Atlantique

Feb 26

New website online at avrithis.net, replacing IVA

Feb 25

Three papers accepted at CVPR 2019: Deep Spatial Matching, Few-Shot Learning and Semi-Supervised Learning

Feb 19

I begin teaching the 1st iteration of Computer Vision at NKUA

Feb 08

Paper accepted at MVA: Particular Object Discovery

# 2018

Nov 20

Paper accepted at CVIU: Planar Shape Decomposition

Nov 19

I begin teaching the 2nd iteration of Deep Learning for Vision at UR1

Oct 10

Research grant BnF begins

Sep 21

Paper accepted at ACCV 2018: Hybrid Diffusion

Sep 01

Research grant MobilAI begins

Jul 23

Technical report released at arXiv: Hybrid Diffusion

May 10

I teach Deep Learning for Computer Vision at NKUA

Mar 29

Technical report released at arXiv: Revisiting Oxford and Paris

Mar 29

Technical report released at arXiv: Mining on Manifolds

Mar 22

I give a talk on Deep Image Retrieval at Safran Tech

Feb 28

Three papers accepted at CVPR 2018: Fast Spectral Ranking, Revisiting Oxford and Paris and Mining on Manifolds

Feb 19

Yann Lifchitz begins his PhD thesis

Feb 19

Research grant Few-Shot begins

Jan 19

Paper accepted at WACV 2018: Unsupervised Object Discovery

# 2017

Nov 20

I begin teaching the 1st iteration of Deep Learning for Vision at UR1

Sep 25

I give a talk on Deep Learning and Retrieval at Inria Rennes-Bretagne Atlantique

Sep 14

Technical report released at arXiv: Unsupervised Object Discovery

Sep 01

Hanwei Zhang begins her PhD thesis

Aug 22

Paper accepted at CEFRL 2017: Discriminative Parts

May 24

I give a talk on Searching over Manifolds at Facebook Research

Apr 21

Technical report released at arXiv: Panorama to Panorama

Apr 12

Technical report released at arXiv: Unsupervised Part Learning

Mar 29

Paper accepted at ICMR 2017: Panorama to Panorama

Mar 20

Technical report released at arXiv: Fast Spectral Ranking

Mar 17

Two papers accepted at CVPR 2017: Unsupervised Part Learning and Diffusion on Region Manifolds

Mar 07

Yahoo! Research chooses LOPQ to index and provide a similar image search functionality on its entire Flickr collection - covered by The Verge, Engadget, Petapixel, Digital Trends and Venture Beat

# 2016

Nov 27

I serve as Area Chair of EUSIPCO 2017

Nov 15

Technical report released at arXiv: Diffusion on Region Manifolds

Nov 14

Technical report released at arXiv: Discriminative Parts

Oct 20

I serve as Workshops Chair of ACM-MM 2019

Sep 02

Hoel Kervadec defends his MSc thesis

Sep 01

Oriane Siméoni begins her PhD thesis

Aug 23

I serve as Area Chair of ACM-MM 2017

Mar 31

I give a talk on Clustering and Nearest Neighbor Search at CVUT

Mar 31

Technical report released at arXiv: k-d Randomized Forests

Mar 25

Paper accepted at CGI 2016: k-d Randomized Forests

Mar

Christos Varytimidis completes his PhD thesis

Feb 01

I am a Research Scientist at Inria Rennes-Bretagne Atlantique

Jan 14

I give a talk on Shape Decomposition, Feature Detection, Matching, and more at FORTH

# 2015

Dec 16

Paper accepted at CVA: Dithering-Based Sampling

Nov 25

I give a talk on Clustering and Nearest Neighbor search at NKUA

Oct 26

I become a father

Oct

Vasileios Chatzipanos completes his Diploma thesis

Sep 03

Paper accepted at ICCV 2015: Web-Scale Image Clustering

Aug 28

Paper accepted at PR: $\alpha$-Shapes for Local Features

Jul 03

Paper accepted at BMVC 2015: Planar Shape Decomposition

Jun 15

I give a talk on Matching, Search, and Clustering at University of Pennsylvania

Jun

Giorgos Mitsis completes his Diploma thesis

Mar 26

I give a talk on Approximate Nearest Neighbor Search at NKUA

Mar 05

Paper accepted at IJCV: Selective Match Kernels

Mar 02

Paper accepted at CVPR 2015: Early Burst Detection

Mar 01

I am a Research Scientist at National and Kapodistrian University of Athens

# 2014

Nov

Yannis Kalantidis completes his PhD thesis

Oct 31

Research grant IS-Helleana ends

Oct 02

I give a talk on Image Retrieval and Nearest Neighbor Search at Inria Rennes-Bretagne Atlantique

Oct

Georgios Perakis completes his Diploma thesis

Sep 05

Paper accepted at ACCV 2014: Dithering-Based Sampling

May 26

I am a Scientific Advisor at Odd Concepts Inc.

May

Athanasios Papadopoulos completes his Diploma thesis

Mar 01

Paper accepted at CVPR 2014: Locally Optimized Product Quantization

Mar

I begin teaching the 9th iteration of Signals and Systems at NTUA

# 2013

Dec 25

Paper accepted at CVIU: Geometry Indexing

Oct 12

Paper accepted at IJCV: Hough Pyramid Matching

Oct

Giorgos Tolias completes his PhD thesis

Sep 02

Two papers accepted at ICCV 2013: Quantize and Conquer and To Aggregate or not

Oct

I begin teaching the 7th iteration of Image and Video Analysis at NTUA

Sep 26

I am married to Maria

Jun 07

Paper accepted at TMM: Movie Summarization

Mar

I begin teaching the 8th iteration of Signals and Systems at NTUA

# 2012

Oct

Agni Delvinioti completes her Diploma thesis

Oct

I begin teaching the 6th iteration of Image and Video Analysis at NTUA

Jul

Christos Arvanitis completes his Diploma thesis

Jun 25

Two papers accepted at ECCV 2012: $\alpha$-Shapes for Local Features and Approximate Gaussian Mixtures

Jun 25

Paper accepted at ACM-MM 2012: SymCity

Apr 27

I give a talk on Image Matching and Visual Search at NKUA

Mar

I begin teaching the 7th iteration of Signals and Systems at NTUA

Mar

Charalampos Moustafelos completes his Diploma thesis

Mar

Spyros Leonardos completes his Diploma thesis

# 2011

Nov 01

Research grant IS-Helleana begins

Oct

I begin teaching the 5th iteration of Image and Video Analysis at NTUA

Jun 30

Two papers accepted at ICCV 2011: Relaxed Spatial Matching and Medial Feature Detector

Mar 31

Research grant WeKnowIt ends

Mar 31

I give a talk on Local Features and Geometry at University of Bordeaux

Mar 11

Paper accepted at CC: Spatiotemporal Features

Mar

I begin teaching the 6th iteration of Signals and Systems at NTUA

Feb 23

Paper accepted at ICMR 2011: Logo Recognition

# 2010

Dec 31

Book chapter published by Springer: Visual Attention

Nov 16

Paper accepted at MTAP: VIRaL

Oct

I begin teaching the 4th iteration of Image and Video Analysis at NTUA

Jul 31

Research grant JUMAS ends

Jul 05

Two papers accepted at ACM-MM 2010: Landmark and Non-Landmark Images and Feature Map Hashing

Sep 07

Paper accepted at SGA 2010: Regions from Edges

Mar

I begin teaching the 5th iteration of Signals and Systems at NTUA

Feb 28

Research grant X-Media ends

# 2009

Nov

Evaggelos Spyrou completes his PhD thesis

Nov

Thanos Athanasiadis completes his PhD thesis

Oct

I begin teaching the 3th iteration of Image and Video Analysis at NTUA

Apr

Research grant Imagination ends

Mar 20

Paper accepted at SP:IC: Spatiotemporal Saliency

Mar

I begin teaching the 4th iteration of Signals and Systems at NTUA

Mar

George Koumoulos completes his Diploma thesis

Feb 28

Research grant MESH ends

Feb 28

Research grant BOEMIE ends

Feb 27

Two papers accepted at CBMI 2009: Compound Document Analysis and VIRaL

Feb 23

Paper accepted at CVPR 2009: Spatiotemporal Feature Points

Jan 22

I serve as Associate Editor of JIVP

Jan 20

Paper accepted at TMM: High-Level Concept Detection

Jan 07

Edited volume published by LNCS: Multimedia Modelling

Jan

Yannis Kalantidis completes his Diploma thesis

# 2008

Dec 31

Research grant K-Space ends

Dec 31

Research grant OntoMedia ends

Dec 15

Paper accepted at ICASSP 2009: Video Event Detection

Nov 08

Paper accepted at MTAP: Concept Detection and Keyframe Extraction

Nov

I serve as General Chair of CBMI 2009

Sep 15

Two papers accepted at MMM 2009: Image Segmentation and Classification and Concept Detection in Video

Oct

I begin teaching the 2nd iteration of Image and Video Analysis at NTUA

Jul

I serve as Program Chair of CIVR 2009

Jun 18

Paper accepted at MMSP 2008: Semantic Video Segmentation

Jun

Christos Varytimidis completes his Diploma thesis

Apr 25

Paper accepted at ICIP 2008: Movie Summarization

Apr 01

Research grant WeKnowIt begins

Apr

Konstantinos Rapantzikos completes his PhD thesis

Apr

Phivos Mylonas completes his PhD thesis

Mar 20

Two papers accepted at CBMI 2008: Regions of Interest for Object Detection and Affine Invariant Curve Matching

Mar

I begin teaching the 3th iteration of Signals and Systems at NTUA

Feb 01

Research grant JUMAS begins

Jan 25

Paper accepted at WIAMIS 2008: Semantic Video Analysis

Jan

I serve as Program Chair of MMM 2009