IRENA: Information Retrieval Engine based on Natural Language Analysis. - Avi Arampatzis; T. Tsoris; Cornelis H. A. Koster (RIAO, 1997)

Phase-Based Information Retrieval. - Avi Arampatzis; T. Tsoris; Cornelis H. A. Koster; Theo P. van der Weide (Inf. Process. Manag., 1998)

Term Weighting for Filtering based on Distribution of Terms over Time. - Avi Arampatzis; Theo P. van der Weide; Cornelis H. A. Koster; Patrick van Bommel (RIAO, 2000)

Incrementality, Half-life, and Threshold Optimization for Adaptive Document Filtering. - Avi Arampatzis; Jean Beney; Cornelis H. A. Koster; Theo P. van der Weide (TREC, 2000)

The Score-Distributional Threshold Optimization for Adaptive Binary Classification Tasks. - Avi Arampatzis; André van Hameren (SIGIR, 2001)

Unbiased S-D Threshold Optimization, Initial Query Degradation, Decay, and Incrementality, for Adaptive Document Filtering. - Avi Arampatzis (TREC, 2001)

Distributed Ranking Methods for Geographic Information Retrieval. - Marc J. van Kreveld; Iris Reinbacher; Avi Arampatzis; Roelof van Zwol (SDH, 2004)

Multi-Dimensional Scattered Ranking Methods for Geographic Information Retrieval. - Marc J. van Kreveld; Iris Reinbacher; Avi Arampatzis; Roelof van Zwol (GeoInformatica, 2005)

Web-based delineation of imprecise regions. - Avi Arampatzis; Marc J. van Kreveld; Iris Reinbacher; Christopher B. Jones; Subodh Vaid; Paul D. Clough; Hideo Joho; Mark Sanderson (Comput. Environ. Urban Syst., 2006)

Deriving a Domain Specific Test Collection from a Query Log. - Avi Arampatzis; Jaap Kamps; Marijn Koolen; Nir Nussbaum (LaTeCH@ACL 2007, 2007)

Unified Access to Heterogeneous Data in Cultural Heritage. - Marijn Koolen; Avi Arampatzis; Jaap Kamps; Vincent de Keijzer; Nir Nussbaum (RIAO, 2007)

Access to Legal Documents: Exact Match, Best Match, and Combinations. - Avi Arampatzis; Jaap Kamps; Martijn Kooken; Nir Nussbaum (TREC, 2007)

The design and implementation of SPIRIT: a spatially aware search engine for information retrieval on the Internet. - Ross S. Purves; Paul D. Clough; Christopher B. Jones; Avi Arampatzis; Bénédicte Bucher; David Finch; Gaihua Fu; Hideo Joho; Awase Khirni Syed; Subodh Vaid; Bisheng Yang (Int. J. Geogr. Inf. Sci., 2007)

A study of query length. - Avi Arampatzis; Jaap Kamps (SIGIR, 2008)

Where to Stop Reading a Ranked List? - Avi Arampatzis; Jaap Kamps (TREC, 2008)

A signal-to-noise approach to score normalization. - Avi Arampatzis; Jaap Kamps (CIKM, 2009)

Score Distributions in Information Retrieval. - Avi Arampatzis; Stephen Robertson; Jaap Kamps (ICTIR, 2009)

Where to stop reading a ranked list?: threshold optimization using truncated score distributions. - Avi Arampatzis; Jaap Kamps; Stephen Robertson (SIGIR, 2009)

Multimedia Search with Noisy Modalities: Fusion and Multistage Retrieval. - Avi Arampatzis; Savvas A. Chatzichristofis; Konstantinos Zagoris (CLEF (Notebook Papers/LABs/Workshops), 2010)

An Empirical Study of Query Specificity. - Avi Arampatzis; Jaap Kamps (ECIR, 2010)

Late fusion of compact composite descriptorsfor retrieval from heterogeneous image databases. - Savvas A. Chatzichristofis; Avi Arampatzis (SIGIR, 2010)

www.MMRetrieval.net: a multimodal search engine. - Konstantinos Zagoris; Avi Arampatzis; Savvas A. Chatzichristofis (SISAP, 2010)

DUTH Does Probabilities of Relevance at the Legal Track. - Dim P. Papadopoulos; Vicky S. Kalogeiton; Avi Arampatzis (TREC, 2010)

DUTH at ImageCLEF 2011 Wikipedia Retrieval. - Avi Arampatzis; Konstantinos Zagoris; Savvas A. Chatzichristofis (CLEF (Notebook Papers/Labs/Workshop), 2011)

Enhancing Deniability against Query-Logs. - Avi Arampatzis; Pavlos S. Efraimidis; George Drosatos (ECIR, 2011)

Dynamic Two-Stage Image Retrieval from Large Multimodal Databases. - Avi Arampatzis; Konstantinos Zagoris; Savvas A. Chatzichristofis (ECIR, 2011)

Fusion vs. Two-Stage for Multimodal Retrieval. - Avi Arampatzis; Konstantinos Zagoris; Savvas A. Chatzichristofis (ECIR, 2011)

Bag-of-visual-words vs global image descriptors on two-stage multimodal retrieval. - Savvas A. Chatzichristofis; Konstantinos Zagoris; Avi Arampatzis (SIGIR, 2011)

The TREC files: the (ground) truth is out there. - Savvas A. Chatzichristofis; Konstantinos Zagoris; Avi Arampatzis (SIGIR, 2011)

Modeling score distributions in information retrieval. - Avi Arampatzis; Stephen Robertson (Inf. Retr., 2011)

A Fuzzy Rank-Based Late Fusion Method for Image Retrieval. - Savvas A. Chatzichristofis; Konstantinos Zagoris; Yiannis S. Boutalis; Avi Arampatzis (MMM, 2012)

Unsupervised linear score normalization revisited. - Ilya Markov; Avi Arampatzis; Fabio Crestani (SIGIR, 2012)

A Versatile Tool for Privacy-Enhanced Web Search. - Avi Arampatzis; George Drosatos; Pavlos S. Efraimidis (ECIR, 2013)

On CORI Results Merging. - Ilya Markov; Avi Arampatzis; Fabio Crestani (ECIR, 2013)

DUTH at TREC 2013 Contextual Suggestion Track. - George Drosatos; Giorgos Stamatelatos; Avi Arampatzis; Pavlos S. Efraimidis (TREC, 2013)

Dynamic two-stage image retrieval from large multimedia databases. - Avi Arampatzis; Konstantinos Zagoris; Savvas A. Chatzichristofis (Inf. Process. Manag., 2013)

A query scrambler for search privacy on the internet. - Avi Arampatzis; Pavlos S. Efraimidis; George Drosatos (Inf. Retr., 2013)

Pythia: A Privacy-Enhanced Personalized Contextual Suggestion System for Tourism. - George Drosatos; Pavlos S. Efraimidis; Avi Arampatzis; Giorgos Stamatelatos; Ioannis N. Athanasiadis (COMPSAC, 2015)

Computational intelligence in optimal portfolio selection - The PI model. - Nikos Loukeris; Yiannis S. Boutalis; Avi Arampatzis; S. Livanis; Lysimachos Maltoudoglou (IISA, 2015)

Hybrid Jordan Elman nets in portfolio selection. - Nikos Loukeris; Yiannis S. Boutalis; S. Livanis; Avi Arampatzis; Lysimachos Maltoudoglou (IISA, 2015)

Sentiment analysis of greek tweets and hashtags using a sentiment lexicon. - Georgios Kalamatianos; Dimitrios Mallis; Symeon Symeonidis; Avi Arampatzis (Panhellenic Conference on Informatics, 2015)

Social network analysis of public lists of POIs. - Ioannis Karagiannis; Avi Arampatzis; Pavlos S. Efraimidis; Giorgos Stamatelatos (Panhellenic Conference on Informatics, 2015)

DUTH at TREC 2015 Clinical Decision Support Track. - George Drosatos; Stefanos Roumeliotis; Eleni Kaldoudi; Avi Arampatzis (TREC, 2015)

Versatile Query Scrambling for Private Web Search. - Avi Arampatzis; George Drosatos; Pavlos S. Efraimidis (Inf. Retr. J., 2015)

DUTh at the ImageCLEF 2016 Image Annotation Task: Content Selection. - Georgios Barlas; Maria Ntonti; Avi Arampatzis (CLEF (Working Notes), 2016)

Stock Price Forecasting via Sentiment Analysis on Twitter. - John Kordonis; Symeon Symeonidis; Avi Arampatzis (PCI, 2016)

Augmenting Medical Queries with UMLS Concepts via MetaMap. - Christopher Agrafiotes; Avi Arampatzis (TREC, 2016)

Recommending Points-of-Interest via Weighted kNN, Rated Rocchio, and Borda Count Fusion. - Georgios Kalamatianos; Avi Arampatzis (TREC, 2016)

A Privacy-by-Design Contextual Suggestion System for Tourism. - Pavlos S. Efraimidis; George Drosatos; Avi Arampatzis; Giorgos Stamatelatos; Ioannis N. Athanasiadis (J. Sens. Actuator Networks, 2016)

A Half-Life Decaying Model for Recommender Systems with Matrix Factorization. - Panagiotis Ardagelou; Avi Arampatzis (TDDL/MDQual/Futurity@TPDL, 2017)

A Comparison of Pre-processing Techniques for Twitter Sentiment Analysis. - Dimitrios Effrosynidis; Symeon Symeonidis; Avi Arampatzis (TPDL, 2017)

A Comparative Study of Language Modeling to Instance-Based Methods, and Feature Combinations for Authorship Attribution. - Olga Fourkioti; Symeon Symeonidis; Avi Arampatzis (TPDL, 2017)

DUTH at SemEval-2017 Task 4: A Voting Classification Approach for Twitter Sentiment Analysis. - Symeon Symeonidis; Dimitrios Effrosynidis; John Kordonis; Avi Arampatzis (SemEval@ACL, 2017)

DUTH at SemEval-2017 Task 5: Sentiment Predictability in Financial Microblogging and News Articles. - Symeon Symeonidis; John Kordonis; Dimitrios Effrosynidis; Avi Arampatzis (SemEval@ACL, 2017)

DUTH at SemEval-2018 Task 2: Emoji Prediction in Tweets. - Dimitrios Effrosynidis; Georgios Peikos; Symeon Symeonidis; Avi Arampatzis (SemEval@NAACL-HLT, 2018)

Keystroke dynamics features for gender recognition. - Ioannis Tsimperidis; Avi Arampatzis; Alexandros Karakos (Digit. Investig., 2018)

Seagrass detection in the mediterranean: A supervised learning approach. - Dimitrios Effrosynidis; Avi Arampatzis; Georgios K. Sylaios (Ecol. Informatics, 2018)

A comparative evaluation of pre-processing techniques and their interactions for twitter sentiment analysis. - Symeon Symeonidis; Dimitrios Effrosynidis; Avi Arampatzis (Expert Syst. Appl., 2018)

Towards the creation of an emotion lexicon for microblogging. - Georgios Kalamatianos; Symeon Symeonidis; Dimitrios Mallis; Avi Arampatzis (J. Syst. Inf. Technol., 2018)

Suggesting Points-of-Interest via Content-Based, Collaborative, and Hybrid Fusion Methods in Mobile Devices. - Avi Arampatzis; Georgios Kalamatianos (ACM Trans. Inf. Syst., 2018)

DUTH at SemEval-2019 Task 8: Part-Of-Speech Features for Question Classification. - Anastasios Bairaktaris; Symeon Symeonidis; Avi Arampatzis (SemEval@NAACL-HLT, 2019)

Language models and fusion for authorship attribution. - Olga Fourkioti; Symeon Symeonidis; Avi Arampatzis (Inf. Process. Manag., 2019)

DUTH at SemEval-2020 Task 11: BERT with Entity Mapping for Propaganda Classification. - Anastasios Bairaktaris; Symeon Symeonidis; Avi Arampatzis (SemEval@COLING, 2020)

DUTh at TREC 2020 Conversational Assistance Track. - Michalis Fotiadis; Georgios Peikos; Symeon Symeonidis; Avi Arampatzis (TREC, 2020)

The Keyboard Knows About You: Revealing User Characteristics via Keystroke Dynamics. - Ioannis Tsimperidis; Avi Arampatzis (Int. J. Technoethics, 2020)

Report on CLEF 2020. - Avi Arampatzis; Linda Cappellato; Carsten Eickhoff; Nicola Ferro 001; Hideo Joho; Evangelos Kanoulas; Christina Lioma; Aurélie Névéol; Theodora Tsikrika; Stefanos Vrochidis (SIGIR Forum, 2020)

Transfer Learning for Automated Responses to the BDI Questionnaire. - Christoforos Spartalis; George Drosatos; Avi Arampatzis (CLEF (Working Notes), 2021)

DUTH at SemEval-2021 Task 7: Is Conventional Machine Learning for Humorous and Offensive Tasks enough in 2021? - Alexandros Karasakalidis; Dimitrios Effrosynidis; Avi Arampatzis (SemEval@ACL/IJCNLP, 2021)

An evaluation of feature selection methods for environmental data. - Dimitrios Effrosynidis; Avi Arampatzis (Ecol. Informatics, 2021)

Pseudo relevance feedback optimization. - Avi Arampatzis; Georgios Peikos; Symeon Symeonidis (Inf. Retr. J., 2021)

What we see in a photograph: content selection for image captioning. - Georgios Barlas; Christos Veinidis; Avi Arampatzis (Vis. Comput., 2021)

The climate change Twitter dataset. - Dimitrios Effrosynidis; Alexandros Karasakalidis; Georgios K. Sylaios; Avi Arampatzis (Expert Syst. Appl., 2022)

Unsupervised consumer intention and sentiment mining from microblogging data as a business intelligence tool. - Symeon Symeonidis; Georgios Peikos; Avi Arampatzis (Oper. Res., 2022)

An Extensive Overview of Feature Representation Techniques for Molecule Classification. - Nikolaos Pavlidis; Christos Chrysanthos Nikolaidis; Vasileios Perifanis; Anastasia Papadopoulou; Pavlos S. Efraimidis; Avi Arampatzis (PCI, 2023)

DUTH at SemEval-2023 Task 9: An Ensemble Approach for Twitter Intimacy Analysis. - Giorgos Arampatzis; Vasileios Perifanis; Symeon Symeonidis; Avi Arampatzis (SemEval@ACL, 2023)

CAMIL: Context-Aware Multiple Instance Learning for Whole Slide Image Classification. - Olga Fourkioti; Avi Arampatzis; Chen Jin; Matt De Vries; Chris Bakal (CoRR, 2023)

Report on the 14th Conference and Labs of the Evaluation Forum (CLEF 2023): Experimental IR Meets Multilinguality, Multimodality, and Interaction. - Mohammad Aliannejadi; Avi Arampatzis; Guglielmo Faggioli; Nicola Ferro 001; Anastasia Giachanou; Evangelos Kanoulas; Dan Li 015; Theodora Tsikrika; Michalis Vlachos; Stefanos Vrochidis (SIGIR Forum, 2023)

DUTh at SemEval-2024 Task 6: Comparing Pre-trained Models on Sentence Similarity Evaluation for Detecting of Hallucinations and Related Observable Overgeneration Mistakes. - Ioanna Iordanidou; Ioannis Maslaris; Avi Arampatzis (SemEval@NAACL, 2024)

DUTh at SemEval 2024 Task 8: Comparing classic Machine Learning Algorithms and LLM based methods for Multigenerator, Multidomain and Multilingual Machine-Generated Text Detection. - Theodora Kyriakou; Ioannis Maslaris; Avi Arampatzis (SemEval@NAACL, 2024)

DUTh at SemEval 2024 Task 5: A multi-task learning approach for the Legal Argument Reasoning Task in Civil Procedure. - Ioannis Maslaris; Avi Arampatzis (SemEval@NAACL, 2024)

The Effect of Training Data Size on Disaster Classification from Twitter. - Dimitrios Effrosynidis; Georgios K. Sylaios; Avi Arampatzis (Inf., 2024)

Enhancing phishing email detection with stylometric features and classifier stacking. - Ilias Chanis; Avi Arampatzis (Int. J. Inf. Sec., 2025)