WIDTH Workshop, Athens
15-16 July 2013
The Information Retrieval and Management Research Group is part of the Information Processing Laboratory directed by professor Theodore Kalamboukis.
The group supports basic and applied research in the field of information retrieval from large textural databases through R&D projects. Also, contributes to the educational activities of the informatics program both on undergraduate and post-graduate levels.
The current research activities of the group concentrate on:
- Document Management
- Information Retrieval, Cross Language Retrieval, Text Categorization
- Web Applications
Information Retrieval Lectures
Professor Theodore Kalamboukis
Dr. Antonia Kyriakopoulou
Dr. Anestis Gkanogiannis
Leonidas Valavanis, Spyridon Stathopoulos and Theodore Kalamboukis, Fusion of Bag-of-Words Models for Image Classification in the Medical Domain, ECIR 2017, Aberdeen
Valavanis Leonidas, Spyridon Stathopoulos, Theodore Kalamboukis, IPL at CLEF 2016 Meducal Task, CLEF 2016 Working Notes, Evora, Portugal, 2016.
Nikos Katris, Richard Sutcliffe, Theodore Kalamboukis, Using a Cross-Language Information Retrieval System based on OHSUMED to Evaluate the Moses and KantanMT Statistical Machine Translation Systems, LREC May, 2016.
Spyridon Stathopoulos, Theodore Kalamboukis, Multi-modal Indexing and Retrieval using an LSA-based kernel function, Multimodal Retrieval in the Medical Domain (MRMD) 2015, volume 9059 of Lecture Notes in Computer Science, Vienna, Austria, Springer LNCS, (April 2015).
Spyridon Stathopoulos, Theodore Kalamboukis, IPL at ImageCLEF 2014: Scalable Concept Image Annotation, Working Notes, Sheffield, 2014.
Spyridon Stathopoulos, Theodore Kalamboukis, Applying latent semantic analysis to large-scale medical image databases, Computerized Medical Imaging and Graphics, Vol. 39, pp 27-34, 2015.
Apostolis Apostolou, Theodore Kalamboukis, Lilian Mitrou, A Greek Retrieval System in the Legal Domain, 6-th International Conference in Information Law and Ethics, Thessaloniki, 2014.
Spyridon Stathopoulos, Ismini Lorenzou,Antonia Kyriakopoulou, Theodore Kalamboukis, IPL at CLEF 2013 Image Retrieval Task, CLEF (Online Working Notes/Labs/Workshop) 2013.
Antonia Kyriakopoulou, Theodore Kalamboukis, The Impact of Semi-Supervised Clustering on Text-Classification, PCI' 13, Proceedings of the 17th Panhellenic Conference on Informatics, Pages 180-187, Thessaloniki, September, 2013.
Spyridon Stathopoulos, Nikolaos Sakiotis, Theodore Kalamboukis, IPL at CLEF 2012 Image Retrieval Task, CLEF (Online Working Notes/Labs/Workshop) 2012.
Spyridon Stathopoulos, Theodore Kalamboukis, An SVD-bypass Latent Semantic Analysis for Image Retrieval, accepted for presentation at the MCBR-CDS 2012: Medical Content-based Retrieval for Clinical Decision Support, Nice, France, October 2012.
Angeliki Plati, Theodore Kalamboukis, A Retrieval System of Greek Legal Documents, 5-th International Conference on Information Law and Ethics, Corfu 2012.
Yiannis Gkoufas, Anna Morou and Theodore Kalamboukis, IPL at CLEF 2011 Image Retrieval Task, Working Paper, CLEF Labs, Amsterdam 2011. pdf
Yiannis Gkoufas, Anna Morou and Theodore Kalamboukis, Combining Textual and Visual Information for Image Retrieval in the Medical Domain, The Open Medical Informatics Journal, 2011, 5, p50-57.
Antonia Kyriakopoulou, Theodore Kalamboukis, Clustering as a prior step to classification: an empirical study, to be published to the International Journal on Artificial Intelligence Tools. International Journal on Artificial Intelligence Tools 20(3): 531-548 (2011).
Anestis Gkanogiannis and Theodore Kalamboukis, A Perceptron-Like Linear Supervised Algorithm for Text Classification, Advanced Data Mining and Applications, Lecture Notes in Computer Science, 2010, Volume 6440/2010, 86-97.
A. Stougiannis, A. Gkanogiannis, T. Kalamboukis, IPL at CLEF 2010, CLEF working notes 2010, Padua. pdf
I. Boutsis and T. Kalamboukis, Combined Content based and Semantic Image Retrieval, CLEF working notes 2009, CLEF Abstracts page 55, Corfu, Greece, 2009. pdf
P. Katsiouli and T. Kalamboukis, An Evaluation of Greek-English Cross Language Retrieval within the CLEF Ad-Hoc Bilingual Task, CLEF working notes 2009, CLEF Abstracts page 6, Corfu, Greece, 2009. pdf
A. Gkanogiannis and T. Kalamboukis, A modified and fast Perceptron learning rule and its use for Tag Recommendations in Social Bookmarking Systems, 71-83, Folke Eisterlehner, etal., (Eds.), ECML PKDD Discovery Challenge 2009 (DC09), International Workshop at the ECML/PKDD in Bled, Slovenia, September 7th, 2009. pdf
A. Gkanogiannis and T. Kalamboukis, A novel supervised learning algorithm and its use for Spam Detection in Social Bookmarking Systems, winner of ECML PKDD Discovery Challenge 2008, task 1: Spam Detection in Social Bookmarking Systems. pdf
A. Kyriakopoulou and T. Kalamboukis, Combining Clustering with Classification for Spam Detection in Social Bookmarking Systems, ECML PKDD Discovery Challenge 2008. pdf
A. Gkanogiannis and T. Kalamboukis, An Algorithm for Text Categorization, The 31st Annual International ACM SIGIR Conference, 20-24 July 2008, Singapore. pdf
Antonia Kyriakopoulou, Using Clustering and Co-Training to Boost Classification Performance, 19th IEEE International Conference on Tools with Artificial Intelligence (ICTAI), 2007, 325-330.
V. Kotsonis, T.Z. Kalamboukis, A. Gkanogiannis, S. Eliakis, A Greek-English Cross Language Medical Information Retrieval System, Conference on Medical Imaging and Informatics, MIMI 2007, Beijing, LNCS, Springer Berlin / Heidelberg, Volume 4987/2008, Medical Imaging and Informatics, 2008, 109-117. pdf
Antonia Kyriakopoulou, Theodore Kalamboukis, Using clustering to enhance text classification, SIGIR 2007, pp. 805-806. pdf
Antonia Kyriakopoulou and Theodore Kalamboukis, Using Clustering for Text Classification, 17th European Conference on Machine Learning, 2006. pdf
M. Theodorakis, A.Vlachos, T. Z. Kalamboukis, Improving Classification Accuracy of Hierarchical Clustering, 3rd Hellenic Conference on Artificial Intelligence, Samos, May 2004.
Antonia Kyriakopoulou, Theodore Kalamboukis, A Framework for a Knowledge Management approach to Digital Portfolios, ED-MEDIA 2003, World Conference on Educational Multimedia, Hypermedia & Telecommunications, Honolulu, Hawaii, USA, June 2003.
Antonia Kyriakopoulou, Theodore Kalamboukis, The instructional instrument SL-EDGE, Student Library - Educational DiGital Environment, World Conference on E-Learning in Corporate, Government, Healthcare & Higher Education 2002, Mondreal, 2002.
Antonia Kyriakopoulou, Theodore Kalamboukis, SL-EDGE: Student Library-Educational DiGital Environment, International Conference in Information & Communication Technologies in Education, Samos 2002.
E. Kopanaki, V. Karkaletsis, C.D. Spyropoulos, N. Avradinis, N. Fakotakis, Th. Kalamboukis, B. Kladis, Y. Lazarou, Th. Panayiotopoulos, D. Spinellis, MITOS: An Integrated Web-based System for Information Management, Proceedings of the 8th Panhellenic Conference on Informatics, Nicosia, Cyprus, November 8-10, 2001. pdf
S. Nikolaidis, T. Z. Kalamboukis, Performance issues of the k-NN text categorization algorithm, Proceedings of the 8th Panhellenic Conference on Informatics, Nicosia, Cyprus, November 8-10, 2001.
B. Makrakis, G. Katsimali, T.Z.Kalamboukis, Ch. Stefanou, A. Kyriakopoulou, et al., PITHEAS: A web-based Tele-Training Environment for Teaching Greek as a Second Language, Proceedings of the Panhellenic Conference on New Technologies and Distance Learning, Rethimnon 2001, 15-31.
Marios Sintichakis, T. Z. Kalamboukis, D. Spinellis, A Computer- Assisted Lexicographic Application, 15th International Symposium on Theoretical & Applied Linguistics, May 2001, Thessaloniki, Greece.
Marios Sintichakis, Katia Kermanidis and T. Z. Kalamboukis, Corpus Analysis for Applied Lexicography, COMLEX2000, Workshop on Computational Lexicography and Multimedia Dictionaries, Kato Achaia, Greece, pp 121-126.
Lina Charis., Afantenos Stergos, Chatzistamatiou Antonis, Dimaki Aikaterini, Kalamboukis Theodore, An Educational Package for Teaching Statistics in Secondary Schools, 2nd Panhellenic Conference in Information and Communication Technologies in Education, Patra 2000.
Simos Nikolaidis, T.Z Kalamboukis, Αn Evaluation of Stemming Algorithms with Modern Greek, Proceedings of the 7th Hellenic Conference on Informatics, p II. 61- 70, Ioannina 1999.
S. Nikolaidis, T.Z. Kalamboukis, A corpus Based Stemming Algorithm, Technical Report, Department of Informatics, Athens University of Economics and Business, 2000.
Antonia Kyriakopoulou, Theodore Kalamboukis, "Principles, Methodologies and Evaluation of Distance Learning", Open and Distance Learning and Regional Development Conference Proceedings, Igoumenitsa, Greece, November 1999.
WIDTH: Warehousing Images in the Digital Hospital: Interpretation, Infrastructure and Integration.
Basic Research Funding Program (BRFP) 2010: The Impact of Semi-Supervised Clustering on Text Classification.
MedAS: Medical Assistance System: Cross Language Information and Image Retrieval for Diagnosis, General Secretariat of Research and Technology, 2006-2008.
PENED 2003, Combined research in the areas of information retrieval, natural language processing, and user modeling aiming at the development of advanced search engines for document collections" (2006-08). General Secretariat of Research and Technology.
TIME, Tele-imaging in Medicine, EU - ASIA ICT Programme, 2005.
e-Lexicon, Digital Lexicon of Economic Terms, Library of Athens University of Economics and Business, EPEAK II, 2002.
ASEP's Electronic Services System: Study of Maturity and Specialisation of ASEP's Electronic Services System.
IntCultNet: Intercultural Learning in the Internet, Socrates- Minerva, Open and Distance Learning and ICT in Education.
INFORMATION MANAGEMENT - TEXT CATEGORIZATION: JOINT RESEARCH AND TECHNOLOGY PROGRAMMES 2002 - 2005, Greece - Romania, University of Iasi, Department of Computer Science
Delos: A Bi-Lingual Electronic Lexicon of Economic terms with reference of the terms to text corpora.
Hermes: An Information Retrieval System for Modern Greek.
Thalis: Educational Software: A program for teaching statistics in the Greek Secondary Education.
Mitos: A system for filtering, extracting and mining information from both textual and structured databases of financial sources.
IMMB: A Multimedia Database of the Heirloom, History and Art of the Holy Monastery of Vatopedion - Holy Mountain of Athos.
EPEAEK: Reformation of the undergraduate curriculum of the Informatics Department.
Pytheas: Program for Educators of Modern Greek as Second and Foreign Language.
Athens University of Economics and Business
76, Patission str, 10434, Athens
(Antoniadou Building, 4th floor)
CLEF 2013, 23-26 September, Valencia, Spain
Participation of the IPL to the Medical Image Retrieval and Photo retrieval by S. Stathopoulos, I. Lourentzou, A. Kyriakopoulou, R-M Karampatsis, T. Kalamboukis, More »
CLEF 2012, 17-20 September 2012, Rome
Participation of IPL with S. Stathopoulos, N. Sakiotis and T. Kalamboukis to the Medical Image Retrieval Challenge More »
Conference on Multilingual and Multimodal Information Access Evaluation
19-22 September 2011, Amsterdam
The IPL group consisted from the students Yiannis Gkoufas and Anna Morou under the supervision of Prof. T. Kalamboukis were the winners of the CLEF 2011 Ad Hoc Medical Image Retrieval Task.More »
Laboratory's participation to ECML/PKDD 2008 Challenge, for Spam Detection in Social Bookmarking Systems. The PhD candidate Anestis Gkanogiannis was the winner of the challenge this year.More »
6 August 2008, Visit of Professor Efthimis Efthimiadis, University of Washington, at the Information Processing Laboratory /Information Retrieval Group.
Laboratory's contribution to KDD (Knowledge Discovery & Data Mining) challenge 2008: Early detection of breast cancer. Out of over 200 submissions, the laboratory's contributions were ranked 57th and 67th respectively. More »
20-24 July 2008, ACM SIGIR 2008, Singapore More »
23-27 July 2007, ACM SIGIR 2007, Amsterdam More »
- Aspect Based Sentiment Analysis, Kyriakos Filippakis-Vasilakos, Master Thesis in Information Systems, AUEB 2015.
- A Greek Retrieval System in the Legal Domain, Apostolou Apostolos, Master Thesis in Computer Science, AUEB 2013.
- Topic Detection from Social Media, Anastasios Gogos, Master Thesis in Computer Science, AUEB 2012.
- Yet another Greek stemmer, Yiannis Mygdanis, Master Thesis in Computer Science, AUEB 2012.
- Image Retrieval with Latent Semantic Analysis, Spyridon Stathopoulos, Master Thesis in Computer Science, AUEB 2012.
- A random walk method with restart for sentiment classification, Argyro Kazaki, Master Thesis in Computer Science, AUEB 2011.
- Improve Retrieval by Combining Information from Multiple Sources, Yiannis Gkoufas, Master Thesis in Computer Science, AUEB 2011.
- Combining Textual and Visual Information for Image Retrieval, Anna Morou, Master Thesis in Computer Science, AUEB 2011.
- Evaluation of Perceptron's algorithm on Text
Categorization, Stathis Rentifis, 2009
- Opinion Mining from Web-blogs,
Vasiliki Vouzi, 2008
- Word Sense Disambiguation using Google's
5-grams, Polyxeni Katsiouli, 2008
- Word sense Disambiguation algorithms,
Metaxenia Gerakiti, 2008
- A probabilistic algorithm for suffix
stripping, Kostas Stathis, 2007
- A Cross Language Information Retrieval
System, Kostas Velentzas, 2006
- Centroid Adjusting for Text
Categorization, Anestis Gkanogiannis, 2005
- Information Retrieval Using
Ontologies, Dimitris Staurakakis, 2005
- Information Retrieval from Passages: An approach to
Question Answering, Emma Gigourtzi, 2003
- Knowledge Management: An Application in
Education, Antonia Kyriakopoulou, 2001
- Information Retrieval from Text Collections in
Economics, George Chalkiadakis, 1999
- Information retrieval using user's
profile, George Aggelis, 1998
- Evaluation of an Information Retrieval System in Greek, Panos Antonopoulos, 1997
- A Retrieval System of Greek Legal Documents, Angeliki Plati, 2012.
- Proximity Retrieval, Dimitris Moudilos, 2012.
- How to change the Similarity function of the Lucene Search Engine , Alexandros Stougiannis, 2010.
- The impact of Semantics in Medical Information Retrieval, Adamantia Eleni Stamelaki, 2010.
- i-score, Combined Textual and
Content based Image Retrieval System, Ioannis Boutsis, 2009
- AcronymAddon 1.0, Yannis Konstas, Alexios Mylonas, 2007
- Lucene: Java-based indexing and search technology
- Luke: Lucene Index Toolbox
- Lire: a library for content based image retrieval
- TRECEval: a program to evaluate TREC results using the standard, NIST evaluation procedures (description, download)
- Snowball: a small string processing language designed for creating stemming algorithms for use in Information Retrieval
- Weka: a collection of machine learning algorithms for data mining tasks
- SVMLight: an implementation of Support Vector Machines (SVMs) in C
- Heritrix: web crawler
- Cluto: a software package for clustering datasets and for analyzing the characteristics of the various clusters
- Wordnet: a lexical database of English
- Single Label