Publications

For the impact of my publications (e.g. citation counts, etc), search me on Google Scholar and Scopus. Click here to see online supplementary material and list of co-authors.

BOOKS:

B[1]. S. A. Chatzichristofis and Y. S. Boutalis, “COMPACT COMPOSITE DESCRIPTORS FOR CONTENT BASED IMAGE RETRIEVAL. BASICS, CONCEPTS, TOOLS”, ISBN 978-3-639-37391-2, International Book Market Service Ltd., VDM Verlag Dr. Müller GmbH & Co. KG, Germany, 216 pages, 2011.


PUBLICATIONS IN INTERNATIONAL SCIENTIFIC JOURNALS:

J[25]. L. Doitsidis, G. Fouskitakis, K. Varikou, I. Rigakis, S. A. Chatzichristofis, A. Papafiippaki, A. Birouraki, “REMOTE MONITORING OF THE BACTROCERA OLEAE (GMELIN) (DIPTERA: TEPHRITIDAE) POPULATION USING AN AUTOMATED MCPHAIL TRAP”, «Computers and Electronics in Agriculture», Elsevier, Volume 137, 2017, pp 69–78 [bib][pdf]

J[24]. L. Bampis, S. A. Chatzichristofis, C. Iakovidou, A. Amanatiadis, Y. S. Boutalis and A. Gasteratos, “LOCATE-BASED VISUAL PLACE RECOGNITION SYSTEM FOR MOBILE ROBOTICS AND GPGPUS”, «Concurrency and Computation: Practice and Experience», Wiley, Accepted for Publication, DOI: 10.1002/cpe.4146, 2017.  [bib][pdf]

J[23]. A. Ch. Kapoutsis, S. A. Chatzichristofis and E. Kosmatopoulos, “DARP: DIVIDE AREAS ALGORITHM FOR OPTIMAL MULTI-ROBOT COVERAGE PATH PLANNING”, «Journal of Intelligent & Robotic Systems», Springer, June 2017, Volume 86, Issue 3, pp 663–680. [bib][pdf]

J[22]. N. Ali, K. Bashir Bajwa, R. Sablatnig, S. A. Chatzichristofis, Z. Iqbal, M. Rashid, “A NOVEL IMAGE RETRIEVAL BASED ON THE VISUAL WORDS FUSION OF SIFT AND SURF”, «PLoS ONE»,  11(6), 17 June 2016, pp 1-20. [bib][pdf]

J[21]. A. Kapoutsis, S. A. Chatzichristofis, L. Doitsidis, E. Kosmatopoulos, J. Sousa, J. Pinto and J. Braga, “REAL-TIME ADAPTIVE MULTI-ROBOT EXPLORATION WITH APPLICATION TO UNDERWATER MAP CONSTRUCTION”, «Autonomous Robots», Springer, Volume 40, Issue 6, August 2016, pp 987–1015 [bib][pdf]

J[20]. C. Iakovidou, N. Anagnostopoulos, A. Kapoutsis, Y. Boutalis, M. Lux and S. A. Chatzichristofis, “LOCALIZING GLOBAL DESCRIPTORS FOR CONTENT BASED IMAGE RETRIEVAL. SIMPLIFYING THE SIMPLE FAMILY OF DESCRIPTORS”, «EURASIP Journal on Advances in Signal Processing», Springer, Volume 2015, Issue 80, 7 September 2015, pp 1-20. [bib][pdf]

J[19]. R. Kouskouridas., A. Amanatiadis, S. A. Chatzichristofis and A. Gasteratos, “WHAT, WHERE AND HOW? INTRODUCING POSE MANIFOLDS FOR INDUSTRIAL OBJECT MANIPULATION”, «Expert Systems with Applications», Volume 42, Issue 21, 30 November 2015, pp 8123–8133. [bib][pdf]

J[18]. E. G. Karakasis, A. Amanatiadis, A. Gasteratos and S. A. Chatzichristofis, “IMAGE MOMENTS AS LOCAL FEATURES FOR CONTENT BASED IMAGE RETRIEVAL USING THE BAG-OF-VISUAL-WORDS MODEL”, «Pattern Recognition Letters», Elsevier, Volume 55, 1 April 2015, pp 22–27 [bib][pdf]

J[17]. L. Bampis, C. Iakovidou, S. A. Chatzichristofis, Y. Boutalis and A. Amanatiadis, “REAL-TIME INDEXING FOR LARGE IMAGE DATABASES: COLOR AND EDGE DIRECTIVITY DESCRIPTOR ON GPU”, «The Journal of Supercomputing», Springer, Volume 71, Issue 3, March 2015, pp 909-937 [bib][pdf]

J[16]. N. P. Bitsakidis, S. A. Chatzichristofis, G.Ch. Sirakoulis, “HYBRID CELLULAR ANTS FOR CLUSTERING PROBLEMS”, «International Journal Of Unconventional Computing», Volume 11, 2015, pp. 103–130. [bib][pdf]

J[15]. A. Amanatiadis and S. A. Chatzichristofis, “HOW SMART ARE SMARTPHONES? BRIDGING THE MARKETING AND INFORMATION TECHNOLOGY GAP”, «IEEE Consumer Electronics Magazine», IEEE, Volume 4, Issue 3, Oct. 2014, pp 51–54, IEEE. [bib][pdf] [Notes from the Editor]

J[14]. D. Scaramuzza, M.C. Achtelik, L. Doitsidis, F. Fraundorfer, E.B. Kosmatopoulos, A. Martinelli, M.W. Achtelik, M. Chli, S. A. Chatzichristofis, et al., “VISION-CONTROLLED MICRO FLYING ROBOTS: FROM SYSTEM DESIGN TO AUTONOMOUS NAVIGATION AND MAPPING IN GPS-DENIED ENVIRONMENTS”, «IEEE Robotics and Automation Magazine», IEEE, Volume 21, Issue 3, Sept. 2014, pp 26–40, IEEE. [bib][pdf][IEEE Spectrum][Cover]

J[13]. S. A. Chatzichristofis, L. Bampis, O. Marges, M. Lux and Y. Boutalis, “IMAGE ENCRYPTION USING THE RECURSIVE ATTRIBUTES OF THE EXCLUSIVE-OR FILTER”, «Journal of Cellular Automata», Volume 9, Issue 2-3, 2014, pp 125–137 (Invited Contribution). [bib][pdf]

J[12]. E. Chatzistavros, S. A. Chatzichristofis, K. Zagoris and G. Stamatellos, “CONTENT-BASED IMAGE RETRIEVAL OVER IEEE 802.11B NOISY WIRELESS NETWORKS”, «International Journal of Communication Systems», Volume 28, Issue 8, 2015, pp 1432–1449, 25, Wiley [bib][pdf]

J[11]. A. Amanatiadis, S. A. Chatzichristofis, K. Charalampous, L. Doitsidis, E. B. Kosmatopoulos, P. Tsalides, A. Gasteratos and S. Roumeliotis, “A MULTI-OBJECTIVE EXPLORATION STRATEGY FOR MOBILE ROBOTS UNDER OPERATIONAL CONSTRAINTS”, «IEEE Access», Volume 1, October 2013, pp 691–702, IEEE. [bib][pdf]

J[10]. D. P. Papadopoulos, V. S. Kalogeiton, S. A. Chatzichristofis and N. Papamarkos, “AUTOMATIC SUMMARIZATION AND ANNOTATION OF VIDEOS WITH LACK OF METADATA INFORMATION”, «Expert Systems with Applications», Volume 40, Issue 14, October 2013, pp 5765–5778, Elsevier. [bib][pdf]

J[9]. S. Α. Chatzichristofis, C. Iakovidou, Y. S. Boutalis and E. Angelopoulou, “MEAN NORMALIZED RETRIEVAL ORDER (MNRO). A NEW CONTENT-BASED IMAGE RETRIEVAL PERFORMANCE MEASURE”, «Multimedia Tools and Applications», Volume 70, Issue 3, June 2014, pp 1767-1798, Springer [bib][pdf]

J[8]. S. Α. Chatzichristofis, C. Iakovidou, Y. S. Boutalis and O. Marques, “CO.VI.WO.: COLOR VISUAL WORDS BASED ON NON-PREDEFINED SIZE CODEBOOKS”, «IEEE Transactions on Cybernetics», Volume 43 (1), February 2013, pp. 192–205, IEEE. [bib][pdf]

J[7]. Avi Arampatzis, K. Zagoris and S. Α. Chatzichristofis, “DYNAMIC TWO-STAGE IMAGE RETRIEVAL FROM LARGE MULTIMEDIA DATABASES”, «Information Processing & Management (IP&M)», Volume 49, January 2013, pp. 274–285, Elsevier. [bib][pdf] [One of the most cited papers]

J[6]. K. Zagoris, S. Α. Chatzichristofis and N. Papamarkos, “TEXT LOCALIZATION USING STANDARD DEVIATION ANALYSIS OF STRUCTURE ELEMENTS AND SUPPORT VECTOR MACHINES”, «EURASIP Journal on Advances in Signal Processing»,Volume 2011:47, 2011, pp.1 – 12, Springer. [bib][pdf]

J[5]. S. Α. Chatzichristofis, Y. S. Boutalis and Avi Arampatzis, “FAST RETRIEVAL FROM IMAGE DATABASES VIA BINARY HAAR WAVELET TRANSFORM ON THE COLOR AND EDGE DIRECTIVITY DESCRIPTOR”, «International Journal on Advances in Networks and Services», vol 4 no 1 & 2, September 2011, pp. 223 – 231 (Invited Contribution). [bib][pdf]

J[4]. S. A. Chatzichristofis, D. Mitzias, G. Ch. Sirakoulis and Y. S. Boutalis, “A NOVEL CELLULAR AUTOMATA BASED TECHNIQUE FOR VISUAL MULTIMEDIA CONTENT ENCRYPTION.”, «Optics Communications», Volume 283, Issue 21, November 2010, pp. 4250 – 4260, Elsevier. [bib][pdf]

J[3]. S. A. Chatzichristofis, Avi Arampatzis and Y. S. Boutalis, “INVESTIGATING THE BEHAVIOR OF COMPACT COMPOSITE DESCRIPTORS IN EARLY FUSION, LATE FUSION, AND DISTRIBUTED IMAGE RETRIEVAL”, «Radioengineering», Volume 19, Number 4, 2010, pp.725 – 733. [bib][pdf]

J[2]. S. A. Chatzichristofis, K. Zagoris, Y. S. Boutalis and N. Papamarkos, “ACCURATE IMAGE RETRIEVAL BASED ON COMPACT COMPOSITE DESCRIPTORS AND RELEVANCE FEEDBACK INFORMATION”, «International Journal of Pattern Recognition and Artificial Intelligence (IJPRAI)», Volume 24, Number 2 / February, 2010, pp. 207 – 244. [bib][pdf][Source]

J[1]. S. A. Chatzichristofis and Y. S. Boutalis, “CONTENT BASED RADIOLOGY IMAGE RETRIEVAL USING A FUZZY RULE BASED SCALABLE COMPOSITE DESCRIPTOR” «Multimedia Tools and Applications», Volume 46, Numbers 2-3 / January, 2010, pp. 493 – 519, Springer. [bib][pdf]


PUBLICATIONS IN BOOK CHAPTERS:

BC[3]. N. P. Bitsakidis , N. I. Dourvas, S. A. Chatzichristofis, G. Ch. Sirakoulis, “CELLULAR AUTOMATA ANTS”, «Advances in Unconventional Computing Volume 23 of the series Emergence, Complexity and Computation», A. Aadamatzky (Eds), pp 591-614. 2017.

BC[2]. A. Ch. Kapoutsis, S. A. Chatzichristofis, G. Ch. Sirakoulis, L. Doitsidis, and E. B. Kosmatopoulos, “EMPLOYING CELLULAR AUTOMATA FOR SHAPING ACCURATE MORPHOLOGY MAPS USING SCATTERED DATA FROM ROBOTICS’ MISSIONS”, «Robots and Lattice Automata, Emergence, Complexity and Computation Volume 13, Springer-Verlag», G. Sirakoulis, A. Aadamatzky (Eds), pp 229-246, 2015.

BC[1]. S. A. Chatzichristofis, Y. S. Boutalis and M. Lux, “COMBINING COLOR AND SPATIAL COLOR DISTRIBUTION INFORMATION IN A FUZZY RULE BASED COMPACT COMPOSITE DESCRIPTOR”, «Communications in Computer and Information Science, Volume 129, Springer-Verlag», J. Filipe, A. Fred, and B. Sharp (Eds.), pp. 49-60, 2011.


PUBLICATIONS IN INTERNATIONAL SCIENTIFIC CONFERENCES:

C[44]. A. Ch. Kapoutsis, C. M. Malliou, S. A. Chatzichristofis and E. B. Kosmatopoulos, “Continuously Informed Heuristic A* – Optimal path retrieval inside an unknown environment” «15th IEEE International Symposium on Safety, Security, and Rescue Robotics (SSRR 2017)», October 11-13 2017, Shanghai, China, Accepted for Publication

C[43]. G. Fouskitakis, L. Doitsidis, K. Varikou, I. Rigakis, I. Sarantopoulos, A. Mpirouraki, A. Papafilippaki, E. Barbopoulou, S. A. Chatzichristofis and K. Maniadaki, “INTEGRATED PEST CONTROL FOR THE OLIVE-FRUIT FLY: REMOTE PEST MONITORING AND OPTIMIZED BAIT-SPRAYS” «8th International Conference on Information and Communication Technologies in Agriculture, Food & Environment (HAICTA 2017)», September 21-24 2017, Chania, Greece, Accepted for Publication.

C[42]. A. Amanatiadis, V.G. Kaburlasos, Ch. Dardani, S.A. Chatzichristofis, “INTERACTIVE SOCIAL ROBOTS IN SPECIAL EDUCATION”, «7th IEEE International Conference on Consumer Electronics (ICCE2017)», September 1-6  2017, Berlin, Germany, Accepted for Publication.

C[41]. S. A. Vassou, N. Anagnostopoulos, A. Amanatiadis, K. Christodoulou and S. A. Chatzichristofis,“COMO: A COMPACT COMPOSITE MOMENT-BASED DESCRIPTOR FOR IMAGE RETRIEVAL” «15th International Workshop on Content-Based Multimedia Indexing (CBMI 2017)», June 19-21 2017, Florence, Italy, 2017, Accepted for Publication. [bib][pdf]

C[40]. S. Petscharnig, M. Lux and S. A. Chatzichristofis,“DIMENSIONALITY REDUCTION FOR IMAGE FEATURES USING DEEP LEARNING AND AUTOENCODERS” «15th International Workshop on Content-Based Multimedia Indexing (CBMI 2017)», June 19-21 2017, Florence, Italy, 2017, Accepted for Publication. [bib][pdf]

C[39]. N. Anagnostopoulos, C. Iakovidou, S. A. Chatzichristofis, Y. Boutalis and M. Lux, “LOCALIZED GLOBAL DESCRIPTORS FOR IMAGE RETRIEVAL: AN EXTENSIVE EVALUATION ON ADAPTATIONS TO THE SIMPLE MODEL” «2016 IEEE International Conference on Imaging Systems and Techniques (IST 2016)», pp. 312-317, October 4-6 2016, Chania – Greece, 2016. [bib][pdf]

C[38]. A. Arvanitidis, S. A. Chatzichristofis, A. Amanatiadis, A. Ch. Kapoutsis and Y. Boutalis, “DESIGNING AND DEVELOPMENT OF A ROBOTIC PUZZLE SOLVER USING MORPHOLOGICAL ASSOCIATIVE MEMORIES” «2016 IEEE International Conference on Imaging Systems and Techniques (IST 2016)», , October 4-6 2016, Chania – Greece, 2016. [bib][pdf]

C[37]. A. Ch. Kapoutsis, G. Salavasidis, S. A. Chatzichristofis, J. Braga, J. Pinto, J. B. Sousa, Elias B. Kosmatopoulos, “THE NOPTILUS PROJECT OVERVIEW: A FULLY-AUTONOMOUS NAVIGATION SYSTEM OF TEAMS OF AUVS FOR STATIC/DYNAMIC UNDERWATER MAP CONSTRUCTION”, «IFAC Workshop on Navigation, Guidance and Control of Underwater Vehicles (NGCUV’2015)», April 28-30 2015, Girona – Catalonia (Spain), 2015. [bib][pdf]

C[36]. C. Iakovidou, L. Bampis, S. A. Chatzichristofis, Y. Boutalis and A. Amanatiadis, “COLOR AND EDGE DIRECTIVITY DESCRIPTOR ON GPGPU”, «23rd Euromicro International Conference on Parallel, Distributed and Network-Based Processing (PDP15)», pp. 301-308, March 04-05 2015, Turku, Finland, 2015. [bib][pdf]

C[35]. K. Konstantinidis, A. Amanatiadis, S. A. Chatzichristofis, R. Sandaltzopoulos and G. Ch. Sirakoulis, “IDENTIFICATION AND RETRIEVAL OF DNA GENOMES USING BINARY IMAGE REPRESENTATIONS PRODUCED BY CELLULAR AUTOMATA”, «2014 IEEE International Conference On Imaging Systems and Techniques (IST’ 2014)», pp. 134 – 137, October 14-17 2014, Santorini – Greece. [bib][pdf]

C[34]. N. Anagnostopoulos, C. Iakovidou, A. Amanatiadis, Y. Boutalis and S. A. Chatzichristofis, “TWO-STAGED IMAGE COLORIZATION BASED ON SALIENT CONTOURS”, «2014 IEEE International Conference On Imaging Systems and Techniques (IST’ 2014)», pp. 381 – 385, October 14-17 2014, Santorini – Greece. [bib][pdf]

C[33]. C. Iakovidou, N. Anagnostopoulos, A. Ch. Kapoutsis, Y. Boutalis and S. A. Chatzichristofis, “SEARCHING IMAGES WITH MPEG-7 (& MPEG-7 LIKE) POWERED LOCALIZED DESCRIPTORS: THE SIMPLE ANSWER TO EFFECTIVE CONTENT BASED IMAGE RETRIEVAL”, «12th International Content Based Multimedia Indexing Workshop», June 18-20 2014, Klagenfurt – Austria. [bib][pdf][Source]

C[32]. L. T. Tsochatzidis, C. Iakovidou, S. A. Chatzichristofis and Y. S. Boutalis, “GOLDEN RETRIEVER – A JAVA BASED OPEN SOURCE IMAGE RETRIEVAL ENGINE”, «ACM Multimedia 2013 (MM’ 13)», pp. 847 – 850, October 21-25, 2013, Barcelona – Spain. [bib][pdf][Source]

C[31]. A. Ch. Kapoutsis, S. A. Chatzichristofis, L. Doitsidis, J. Borges de Sousa and E. B. Kosmatopoulos, “AUTONOMOUS NAVIGATION OF TEAMS OF UNMANNED AERIAL OR UNDERWATER VEHICLES FOR EXPLORATION OF UNKNOWN STATIC & DYNAMIC ENVIRONMENTS”, «21st Mediterranean Conference on Control and Automation, (MED’13)», pp. 1181 – 1188, June 25 – 28, 2013, Platanias-Chania, Crete – Greerce.

C[30]. A. Renzaglia, L. Doitsidis, S. A. Chatzichristofis, A. Martinelli and E. B. Kosmatopoulos, “DISTRIBUTED MULTI-ROBOT COVERAGE USING MICRO AERIAL VEHICLES”, «21st Mediterranean Conference on Control and Automation, (MED’13)», pp. 963 – 968, June 25 – 28, 2013, Platanias-Chania, Crete – Greerce.

C[29]. M. Achtelik, M. Achtelik, Y. Brunet, M. Chli, S. A. Chatzichristofis, J.D. Decotignie, K.M. Doth, F. Fraundorfer, L. Kneip, D. Gurdan, L. Heng, E. Kosmatopoulos, L. Doitsidis, G.H. Lee, S. Lynen, A. Martinelli, L. Meier, M. Pollefeys, D. Piguet, A. Renzaglia, D. Scaramuzza, R. Siegwart, J. Stumpf, P. Tanskanen, C. Troiani and S. Weiss, “SFLY: SWARM OF MICRO FLYING ROBOTS”, «IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2012)», pp. 2649 – 2650, October 7 – 12, 2012, Vilamura, Algarve, Portugal. (Finalist for the Best Video Award)

C[28]. S. A. Chatzichristofis, O. Marques, M. Lux and Y. Boutalis, “IMAGE ENCRYPTION USING THE RECURSIVE ATTRIBUTES OF THE EXCLUSIVE-OR FILTER ON CELLULAR AUTOMATA”, «ACRI 2012, Cellular Automata for Research and Industry», Lecture Notes in Computer Science, pp. 340 – 350, September 24 – 27, 2012, Santorini, Greece.

C[27]. S. A. Chatzichristofis, A. Ch. Kapoutsis, E. B. Kosmatopoulos, L. Doitsidis, D. Rovas and Joao Borges de Sousa, “THE NOPTILUS PROJECT: AUTONOMOUS MULTI-AUV NAVIGATION FOR EXPLORATION OF UNKNOWN ENVIRONMENTS”, «IFAC Workshop on Navigation, Guidance and Control of Underwater Vehicles (NGCUV’2012)», pp. 373 – 380, April 10 – 12, 2012, Porto, Portugal.

C[26]. L. T. Tsochatzidis, A. Ch. Kapoutsis, N. I. Dourvas, S. A. Chatzichristofis, Y. S. Boutalis and K. Zagoris, “TSOKADO: AN IMAGE SEARCH ENGINE PERFORMING RECURSIVE QUERY RECOMMENDATION BASED ON VISUAL INFORMATION”, «The Fifth International Conference on Advances in Computer-Human Interactions (ACHI 2012)», pp. 106 – 111, January 30 – February 2, 2012, Valencia, Spain. [bib][pdf][Demo]

C[25]. S. A. Chatzichristofis, K. Zagoris, Y. Boutalis and Avi Arampatzis, “A FUZZY RANK-BASED LATE FUSION METHOD FOR IMAGE RETRIEVAL”, «The 18th International MultiMedia Modeling Conference (IMMM)», Lecture Notes in Computer Science, pp. 463 – 472, January 4 – 6, 2012, Klagenfurt, Austria.

C[24]. Avi Arampatzis, K. Zagoris and S. A. Chatzichristofis, “DUTH AT IMAGECLEF 2011 WIKIPEDIA RETRIEVAL”, In Working Notes, «Conference on Multilingual and Multimodal Information Access Evaluation (CLEF 2011), ImageClef, Wikipedia Retrieval Task», September 19 – 22, 2011, Amsterdam, Netherlands.

C[23]. S. Α. Chatzichristofis, C. Iakovidou, and Y. S. Boutalis, “CONTENT BASED IMAGE RETRIEVAL USING VISUAL-WORDS DISTRIBUTION ENTROPY”, «5th International Conference on Computer Vision / Computer Graphics Collaboration Techniques and Applications – MIRAGE 2011», Lecture Notes in Computer Science, pp. 204 – 215, October 10 – 12, 2011, Rocquencourt, France.

C[22]. D. P. Papadopoulos, S. Α. Chatzichristofis and N. Papamarkos, “VIDEO SUMMARIZATION USING A SELF-GROWING AND SELF-ORGANIZED NEURAL GAS NETWORK”, «5th International Conference on Computer Vision / Computer Graphics Collaboration Techniques and Applications – MIRAGE 2011», Lecture Notes in Computer Science, pp. 216 – 226, October 10 – 12, 2011, Rocquencourt, France.

C[21]. S. Α. Chatzichristofis, K. Zagoris, and Avi Arampatzis, “THE TREC FILES – THE (GROUND) TRUTH IS OUT THERE”, «34rd International ACM SIGIR conference on research and development in Information Retrieval», July 24 – 28, 2011, Beijing, China. [bib][pdf][Demo]

C[20]. K. Zagoris, S. Α. Chatzichristofis and Avi Arampatzis, “BAG-OF-VISUAL-WORDS VS GLOBAL IMAGE DESCRIPTORS ON TWO-STAGE MULTIMODAL RETRIEVAL”, «34rd International ACM SIGIR conference on research and development in Information Retrieval», July 24 – 28, 2011, Beijing, China.

C[19]. E. Chatzistavros, S. Α. Chatzichristofis, G. Stamatellos and K. Zagoris, “COMPARATIVE PERFORMANCE EVALUATION OF IMAGE DESCRIPTORS OVER IEEE 802.11B NOISY WIRELESS NETWORKS”, «The 5th IEEE/FTRA International Conference on Multimedia and Ubiquitous Engineering (MUE 2011)», IEEE Computer Society, pp. 128 – 133, June 28 – 30, 2011, Loutraki, Greece. [Slides]

C[18]. Avi Arampatzis, K. Zagoris and S. A. Chatzichristofis, “FUSION VS TWO-STAGE FOR MULTIMODAL RETRIEVAL”, «The 33rd European Conference On Information Retrieval (ECIR2011)», Lecture Notes in Computer Science, pp. 759 – 762, April 19 – 21, 2011, Dublin, Ireland.

C[17]. Avi Arampatzis, K. Zagoris and S. A. Chatzichristofis, “DYNAMIC TWO-STAGE IMAGE RETRIEVAL FROM LARGE MULTIMODAL DATABASES”, «The 33rd European Conference On Information Retrieval (ECIR2011)», Lecture Notes in Computer Science, pp. 326 – 337, April 19 – 21, 2011, Dublin, Ireland. [bib][pdf] [Slides]

C[16]. Avi Arampatzis, S. A. Chatzichristofis, and K. Zagoris, “MULTIMEDIA SEARCH WITH NOISY MODALITIES: NORMALIZATION, FUSION, AND MULTISTAGE RETRIEVAL”, InWorking Notes, «Conference on Multilingual and Multimodal Information Access Evaluation (CLEF 2010), ImageClef, Wikipedia Retrieval Task», September 20 – 23, 2010, Padova, Italy.

C[15]. K. Zagoris, Avi Arampatzis and S. A. Chatzichristofis, “WWW.MMRETRIEVAL.NET: A MULTIMODAL SEARCH ENGINE.”, «3nd International Conference on Similarity Search and Applications (SISAP)», ACM New York, pp. 117 – 118, September 18 – 19, 2010, Istanbul, Turkey[bib][pdf][Demo][Slides]

C[14]. S. A. Chatzichristofis, Y.S. Boutalis and Avi Arampatzis, “ACCELERATING IMAGE RETRIEVAL USING BINARY HAAR WAVELET TRANSFORM ON THE COLOR AND EDGE DIRECTIVITY DESCRIPTOR”, «The Fifth International Multi-Conference on Computing in the Global Information Technology (ICCGI 2010)», IEEE Computer Society, pp. 41 – 47, September 20 – 25, 2010, Valencia, Spain. (Best Paper Award)

C[13]. K Zagoris, S. A. Chatzichristofis, N. Papamarkos and Y. S. Boutalis, “AUTOMATIC IMAGE ANNOTATION AND RETRIEVAL USING THE JOINT COMPOSITE DESCRIPTOR.”, «14th PanHellenic Conference on Informatics with international Participation (PCI2010)», pp. 143 – 147, IEEE Computer Society, September 10 – 12, 2010, Tripoli, Greece. [Slides]

C[12]. S. A. Chatzichristofis, Y. S. Boutalis, D. A. Karras and B. G. Mertzios, “CONTENT BASED MRSI IMAGE INDEXING AND RETRIEVAL INVOLVING A FUZZY DESCRIPTOR.”, «Imaging Systems and Techniques (IST), 2010 IEEE International Conference on», pp. 373 – 378, July 1 – 2, 2010, Thessaloniki, Greece.

C[11]. S. A. Chatzichristofis and Avi Arampatzis, “LATE FUSION OF COMPACT COMPOSITE DESCRIPTORS FOR RETRIEVAL FROM HETEROGENEOUS IMAGE DATABASES.”, «SIGIR ’10: The 33rd International ACM SIGIR conference on research and development in Information Retrieval», July 19 – 23, 2010, Geneva, Switzerland.

C[10]. S. A. Chatzichristofis and Y. S. Boutalis, “PERFORMANCE STUDY OF THE MOST COMMONLY USED IMAGE RETRIEVAL EVALUATION METHODS”, «The Sixth IASTED International Conference on Advances in Computer Science and Engineering (ACSE)», pp.27 – 32, March 15 – 17, 2010, Sharm El Sheikh, Egypt.

C[9]. S. A. Chatzichristofis, Y. S. Boutalis and M. Lux, “SPCD – SPATIAL COLOR DISTRIBUTION DESCRIPTOR. A FUZZY RULE BASED COMPACT COMPOSITE DESCRIPTOR APPROPRIATE FOR HAND DRAWN COLOR SKETCHES RETRIEVAL”, «2nd International Conference on Agents and Artificial Intelligence (ICAART)», pp. 58 – 63, January 22 – 24, 2010, Valencia, Spain. (Best Paper Award)

C[8]. K Zagoris, S. A. Chatzichristofis, N. Papamarkos and Y. S. Boutalis, “IMG(ANAKTISI): A WEB CONTENT BASED IMAGE RETRIEVAL SYSTEM.”, «2nd International Conference on Similarity Search and Applications (SISAP)», IEEE Computer Society, pp.154 – 155, August 29 – 30, 2009, Prague, Czech Republic. [bib][pdf][Demo]

C[7]. S. A. Chatzichristofis, Y. S. Boutalis and M. Lux, “IMG(RUMMAGER): AN INTERACTIVE CONTENT BASED IMAGE RETRIEVAL SYSTEM.”, «2nd International Conference on Similarity Search and Applications (SISAP)», IEEE Computer Society, pp.151 – 153, August 29 – 30, 2009, Prague, Czech Republic. [bib][pdf][Demo-Source]

C[6]. S. A. Chatzichristofis, Y. S. Boutalis and M. Lux, “SELECTION OF THE PROPER COMPACT COMPOSITE DESCRIPTOR FOR IMPROVING CONTENT BASED IMAGE RETRIEVAL.”, «The Sixth IASTED International Conference on Signal Processing, Pattern Recognition and Applications (SPPRA)», ACTA PRESS, pp.134 – 140, February 17 – 19, 2009, Innsbruck, Austria.

C[5]. S. A. Chatzichristofis and Y. S. Boutalis, “CONTENT BASED MEDICAL IMAGE INDEXING AND RETRIEVAL USING A FUZZY COMPACT COMPOSITE DESCRIPTOR”, «The Sixth IASTED International Conference on Signal Processing, Pattern Recognition and Applications (SPPRA)», ACTA PRESS, pp.1 – 6, February 17 – 19, 2009, Innsbruck, Austria.

C[4]. M. Lux and S. A. Chatzichristofis, “LIRE: LUCENE IMAGE RETRIEVAL – AN EXTENSIBLE JAVA CBIR LIBRARY”, «ACM International Conference on Multimedia 2008», (ACM MM), Open Source Application Competition, pp.1085 – 1087, October 27 – 31, 2008, Vancouver, British Columbia. (Most downloaded paper from “ACM Multimedia 2008” Read More –  Top 10 downloaded ACM SIGMM articles from the ACM Digital Library, from July 2010 to June 2011 – Read More) [bib][pdf][Source]

C[3]. S. A. Chatzichristofis and Y. S. Boutalis, “CEDD: COLOR AND EDGE DIRECTIVITY DESCRIPTOR – A COMPACT DESCRIPTOR FOR IMAGE INDEXING AND RETRIEVAL.”, «6th International Conference in advanced research on Computer Vision Systems (ICVS)», Lecture Notes in Computer Science (LNCS), pp.312 – 322, May 12 – 15, 2008, Santorini, Greece. (This paper has gained a place on the 4 most cited (among 20211) documents published in 2008 on “Lecture Notes in Computer Science”, Source: Scopus – Read More) [bib][pdf][Source]

C[2]. S. A. Chatzichristofis and Y. S. Boutalis, “FCTH: FUZZY COLOR AND TEXTURE HISTOGRAM- A LOW LEVEL FEATURE FOR ACCURATE IMAGE RETRIEVAL”, «9th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS)”, IEEE Computer Society, pp.191 – 196, May 7 – 9, 2008, Klagenfurt, Austria. [bib][pdf][Source]

C[1]. S. A. Chatzichristofis and Y. S. Boutalis, “A HYBRID SCHEME FOR FAST AND ACCURATE IMAGE RETRIEVAL BASED ON COLOR DESCRIPTORS”, «IASTED International Conference on Artificial Intelligence and Soft Computing (ASC)», ACTA PRESS, pp.280 – 285, August 29 – 31, 2007, Palma De Mallorca, Spain.


PUBLICATIONS IN INTERNATIONAL UNDERGRADUATE AND POSTGRADUATE SCIENTIFIC CONFERENCES:

O[5]. Lazaros T. Tsochatzidis, Athanasios C. Kapoutsis, Nikolaos I. Dourvas, S.A. Chatzichristofis, Yiannis S. Boutalis, “QUERY EXPANSION BASED ON VISUAL IMAGE CONTENT”, «5th PanHellenic Scientific Conference for Undergraduate and Postgraduate Students in Computer Engineering, Informatics, related Technologies and Applications», pp. 163-172, September 30 to October 1, 2011, Kastoria, Greece.

O[4]. A. Koutsokalis, K. Manolis, A. Vellios, Y. S. Boutalis and S. A. Chatzichristofis, “WIRED AND WIRELESS METHODS FOR CONTROLLING A 5-DOF ROBOTIC ARM”, «1st International Conference for Undergraduate and Postgraduate Students in Computer Engineering, Informatics, related Technologies and Applications», pp. 197-203, October 14 to 15, 2010, Patra, Greece.

O[3]. V. S. Kalogeiton, D. P. Papadopoulos, S. A. Chatzichristofis and Y. S. Boutalis, “A NOVEL VIDEO SUMMARIZATION METHOD BASED ON COMPACT COMPOSITE DESCRIPTORS AND FUZZY CLASSIFIER”, «1st International Conference for Undergraduate and Postgraduate Students in Computer Engineering, Informatics, related Technologies and Applications», pp. 237-246, October 14 to 15, 2010, Patra, Greece(Best Paper Award)

O[2]. A. Arvanitidis, S. A. Chatzichristofis, O. Bouzios and Y. S. Boutalis, “DESIGNING AND DEVELOPMENT OF A PUZZLE SOLVER SYSTEM USING MORPHOLOGICAL ASSOCIATIVE MEMORIES”, «1st International Conference for Undergraduate and Postgraduate Students in Computer Engineering, Informatics, related Technologies and Applications», pp. 67-76, October 14 to 15, 2010, Patra, Greece.

O[1]. C. Mavrakis, T. Kyrgos, S. A. Chatzichristofis, “AN OPEN SOURCE SET OF LIBRARIES TO CONTROL A 5-DOF ROBOTIC ARM”, «1st International Conference for Undergraduate and Postgraduate Students in Computer Engineering, Informatics, related Technologies and Applications», pp. 57-66, October 14 to 15, 2010, Patra, Greece.


DISSERTATIONS:

D[2]. S. A. Chatzichristofis, “DESCRIPTION AND RETRIEVAL OF THE VISUAL CONTENT OF MULTIMEDIA INFORMATION BASED ON INTELLIGENT TECHNIQUES”, PhD Thesis, Automatic Control Systems and Robotics Laboratory, Democritus University of Thrace – Greece. (Grade 10/10).

D[1]. S. A. Chatzichristofis, “TOOLS AND TECHNIQUES FOR COLOR IMAGE RETRIEVAL”, Diploma Thesis, Automatic Control Systems and Robotics Laboratory, Democritus University of Thrace – Greece. (Grade 10/10).


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