| 2013 | ICDAR | ICDAR 2013 Competition on Writer Identification. | Georgios Louloudis, Basilios Gatos, Nikolaos Stamatopoulos, A. Papandreou |
| 2013 | ICDAR | A Coarse to Fine Skew Estimation Technique for Handwritten Words. | A. Papandreou, Basilios Gatos |
| 2013 | ICDAR | ICDAR 2013 Document Image Skew Estimation Contest (DISEC 2013). | A. Papandreou, Basilios Gatos, Georgios Louloudis, Nikolaos Stamatopoulos |
| 2012 | DAS | Efficient Word Retrieval Using a Multiple Ranking Combination Scheme. | Georgios Louloudis, Anastasios L. Kesidis, Basilios Gatos |
| 2012 | DAS | Word Slant Estimation Using Non-horizontal Character Parts and Core-Region Information. | A. Papandreou, Basilios Gatos |
| 2012 | ICFHR | ICFHR 2012 Competition on Writer Identification Challenge 1: Latin/Greek Documents. | Georgios Louloudis, Basilios Gatos, Nikolaos Stamatopoulos |
| 2012 | ICFHR | ICFHR 2012 Competition on Handwritten Document Image Binarization (H-DIBCO 2012). | Ioannis Pratikakis, Basilios Gatos, Konstantinos Ntirogiannis |
| 2012 | ICFHR | Handwritten and Machine Printed Text Separation in Document Images Using the Bag of Visual Words Paradigm. | Konstantinos Zagoris, Ioannis Pratikakis, Apostolos Antonacopoulos, Basilios Gatos, Nikos Papamarkos |
| 2011 | ICDAR | Efficient Word Recognition Using a Pixel-Based Dissimilarity Measure. | Sebastian Colutto, Basilios Gatos |
| 2011 | ICDAR | Adaptive Zoning Features for Character and Word Recognition. | Basilios Gatos, Anastasios L. Kesidis, A. Papandreou |
| 2011 | ICDAR | Greek Polytonic OCR Based on Efficient Character Class Number Reduction. | Basilios Gatos, Georgios Louloudis, Nikolaos Stamatopoulos |
| 2011 | ICDAR | Efficient Cut-Off Threshold Estimation for Word Spotting Applications. | Anastasios L. Kesidis, Basilios Gatos |
| 2011 | ICDAR | ICDAR 2011 Writer Identification Contest. | Georgios Louloudis, Nikolaos Stamatopoulos, Basilios Gatos |
| 2011 | ICDAR | Binarization of Textual Content in Video Frames. | Konstantinos Ntirogiannis, Basilios Gatos, Ioannis Pratikakis |
| 2011 | ICDAR | A Novel Skew Detection Technique Based on Vertical Projections. | A. Papandreou, Basilios Gatos |
| 2011 | ICDAR | ICDAR 2011 Document Image Binarization Contest (DIBCO 2011). | Ioannis Pratikakis, Basilios Gatos, Konstantinos Ntirogiannis |
| 2010 | DAS | Page frame detection for double page document images. | Nikolaos Stamatopoulos, Basilios Gatos, Thodoris Georgiou |
| 2010 | DAS | Automatic unsupervised parameter selection for character segmentation. | Georgios Vamvakas, Nikolaos Stamatopoulos, Basilios Gatos, Stavros J. Perantonis |
| 2010 | ICFHR | ICFHR 2010 Handwriting Segmentation Contest. | Basilios Gatos, Nikolaos Stamatopoulos, Georgios Louloudis |
| 2010 | ICFHR | H-DIBCO 2010 - Handwritten Document Image Binarization Competition. | Ioannis Pratikakis, Basilios Gatos, Konstantinos Ntirogiannis |
| 2010 | ICFHR | Efficient Transcript Mapping to Ease the Creation of Document Image Segmentation Ground Truth with Text-Image Alignment. | Nikolaos Stamatopoulos, Georgios Louloudis, Basilios Gatos |
| 2010 | ICPR | A Pixel-Based Evaluation Method for Text Detection in Color Images. | Marios Anthimopoulos, Nikolaos Vlissidis, Basilios Gatos |
| 2009 | ICDAR | ICDAR 2009 Document Image Binarization Contest (DIBCO 2009). | Basilios Gatos, Konstantinos Ntirogiannis, Ioannis Pratikakis |
| 2009 | ICDAR | Segmentation-free Word Spotting in Historical Printed Documents. | Basilios Gatos, Ioannis Pratikakis |
| 2009 | ICDAR | ICDAR 2009 Handwriting Segmentation Contest. | Basilios Gatos, Nikolaos Stamatopoulos, Georgios Louloudis |
| 2009 | ICDAR | A Novel Two Stage Evaluation Methodology for Word Segmentation Techniques. | Georgios Louloudis, Nikolaos Stamatopoulos, Basilios Gatos |
| 2009 | ICDAR | Handwritten Text Line Segmentation by Shredding Text into its Lines. | Anguelos Nicolaou, Basilios Gatos |
| 2009 | ICDAR | A Modified Adaptive Logical Level Binarization Technique for Historical Document Images. | Konstantinos Ntirogiannis, Basilios Gatos, Ioannis Pratikakis |
| 2009 | ICDAR | A Methodology for Document Image Dewarping Techniques Performance Evaluation. | Nikolaos Stamatopoulos, Basilios Gatos, Ioannis Pratikakis |
| 2009 | ICDAR | A Novel Feature Extraction and Classification Methodology for the Recognition of Historical Documents. | Georgios Vamvakas, Basilios Gatos, Stavros J. Perantonis |
| 2008 | DAS | A Hybrid System for Text Detection in Video Frames. | Marios Anthimopoulos, Basilios Gatos, Ioannis Pratikakis |
| 2008 | DAS | Efficient Binarization of Historical and Degraded Document Images. | Basilios Gatos, Ioannis Pratikakis, Stavros J. Perantonis |
| 2008 | DAS | Keyword Matching in Historical Machine-Printed Documents Using Synthetic Data, Word Portions and Dynamic Time Warping. | Thomas Konidaris, Basilios Gatos, Stavros J. Perantonis, Anastasios L. Kesidis |
| 2008 | DAS | An Objective Evaluation Methodology for Document Image Binarization Techniques. | Konstantinos Ntirogiannis, Basilios Gatos, Ioannis Pratikakis |
| 2008 | DAS | A Two-Step Dewarping of Camera Document Images. | Nikolaos Stamatopoulos, Basilios Gatos, Ioannis Pratikakis, Stavros J. Perantonis |
| 2008 | DAS | A Complete Optical Character Recognition Methodology for Historical Documents. | Georgios Vamvakas, Basilios Gatos, Nikolaos Stamatopoulos, Stavros J. Perantonis |
| 2008 | ICPR | Improved document image binarization by using a combination of multiple binarization techniques and adapted edge information. | Basilios Gatos, Ioannis Pratikakis, Stavros J. Perantonis |
| 2007 | ICDAR | Page Segmentation Competition. | Apostolos Antonacopoulos, Basilios Gatos, David Bridson |
| 2007 | ICDAR | Handwriting Segmentation Contest. | Basilios Gatos, Apostolos Antonacopoulos, Nikolaos Stamatopoulos |
| 2007 | ICDAR | Segmentation Based Recovery of Arbitrarily Warped Document Images. | Basilios Gatos, Ioannis Pratikakis, Konstantinos Ntirogiannis |
| 2007 | ICDAR | Text Line Detection in Unconstrained Handwritten Documents Using a Block-Based Hough Transform Approach. | Georgios Louloudis, Basilios Gatos, Constantin Halatsis |
| 2007 | ICDAR | An Efficient Word Segmentation Technique for Historical and Degraded Machine-Printed Documents. | Michael Makridis, Nikos A. Nikolaou, Basilios Gatos |
| 2007 | ICDAR | An Efficient Feature Extraction and Dimensionality Reduction Scheme for Isolated Greek Handwritten Character Recognition. | Georgios Vamvakas, Basilios Gatos, Sergios Petridis, Nikolaos Stamatopoulos |
| 2006 | ICPR | Hybrid Off-Line Cursive Handwriting Word Recognition. | Basilios Gatos, Ioannis Pratikakis, Stavros J. Perantonis |
| 2005 | ICDAR | Page Segmentation Competition. | Apostolos Antonacopoulos, David Bridson, Basilios Gatos |
| 2005 | ICDAR | A Segmentation-free Approach for Keyword Search in Historical Typewritten Documents. | Basilios Gatos, Thomas Konidaris, Kostas Ntzios, Ioannis Pratikakis, Stavros J. Perantonis |
| 2005 | ICDAR | An Old Greek Handwritten OCR System. | Kostas Ntzios, Basilios Gatos, Ioannis Pratikakis, Thomas Konidaris, Stavros J. Perantonis |
| 2005 | ISMM | Watershed-Driven Region-Based Image Retrieval. | Ioannis Pratikakis, Iris Vanhamel, Hichem Sahli, Basilios Gatos, Stavros J. Perantonis |
| 2004 | DAS | A Segmentation-Free Recognition Technique to Assist Old Greek Handwritten Manuscript OCR. | Basilios Gatos, Kostas Ntzios, Ioannis Pratikakis, Sergios Petridis, Thomas Konidaris, Stavros J. Perantonis |
| 2004 | DAS | An Adaptive Binarization Technique for Low Quality Historical Documents. | Basilios Gatos, Ioannis Pratikakis, Stavros J. Perantonis |
| 2003 | ICDAR | ICDAR 2003 Page Segmentation Competition. | Apostolos Antonacopoulos, Basilios Gatos, Dimosthenis Karatzas |
| 2001 | ICDAR | First International Newspaper Segmentation Contest. | Basilios Gatos, S. L. Mantzaris, Apostolos Antonacopoulos |
| 2001 | ICDAR | Applying Fast Segmentation Techniques at a Binary Image Represented by a Set of Non-Overlapping Blocks. | Basilios Gatos, Nikos Papamarkos |
| 2000 | ICPR | A Novel Recursive Algorithm for Area Location Using Isothetic Polygons. | Basilios Gatos, S. L. Mantzaris |
| 2000 | SIGIR | Integrated search tools for newspaper digital libraries. | S. L. Mantzaris, Basilios Gatos, N. Gouraros, P. Tzavelis |
| 1999 | ICDAR | Integrated Algorithms for Newspaper Page Decomposition and Article Tracking. | Basilios Gatos, S. L. Mantzaris, Konstantinos Chandrinos, Andreas Tsigris, Stavros J. Perantonis |