Avi Arampatzis

88 papers A* 7A 7B 5C 1Misc 1Journal 27Unranked 38

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	DUTH at CLEF 2025 SimpleText Track: Tackling Scientific Text Simplification and Hallucination Detection. CLEF (Working Notes) Georgios Arampatzis, Avi Arampatzis
2025	—	`conf`	DUTH at CLEF JOKER 2025 Tasks 2 and 3: Translating Puns and Proper Names with Neural Approaches. CLEF (Working Notes) Georgios Arampatzis, Avi Arampatzis
2025	—	`conf`	DUTH at EXIST 2025: Multilingual Sexism Detection with Soft Labels and Transformers. CLEF (Working Notes) Georgios Arampatzis, Vasileios Perifanis, Symeon Symeonidis, Avi Arampatzis
2025	J	`jnl`	Enhancing phishing email detection with stylometric features and classifier stacking. Int. J. Inf. Sec. Ilias Chanis, Avi Arampatzis
2024	—	`conf`	DUTh at SemEval 2024 Task 5: A multi-task learning approach for the Legal Argument Reasoning Task in Civil Procedure. SemEval@NAACL Ioannis Maslaris, Avi Arampatzis
2024	—	`conf`	DUTh at SemEval 2024 Task 8: Comparing classic Machine Learning Algorithms and LLM based methods for Multigenerator, Multidomain and Multilingual Machine-Generated Text Detection. SemEval@NAACL Theodora Kyriakou, Ioannis Maslaris, Avi Arampatzis
2024	—	`conf`	DUTh at SemEval-2024 Task 6: Comparing Pre-trained Models on Sentence Similarity Evaluation for Detecting of Hallucinations and Related Observable Overgeneration Mistakes. SemEval@NAACL Ioanna Iordanidou, Ioannis Maslaris, Avi Arampatzis
2024	J	`jnl`	The Effect of Training Data Size on Disaster Classification from Twitter. Inf. Dimitrios Effrosynidis, Georgios K. Sylaios, Avi Arampatzis
2023	—	`conf`	An Extensive Overview of Feature Representation Techniques for Molecule Classification. PCI Nikolaos Pavlidis, Christos Chrysanthos Nikolaidis, Vasileios Perifanis, Anastasia Papadopoulou, Pavlos S. Efraimidis, Avi Arampatzis
2023	J	`jnl`	CAMIL: Context-Aware Multiple Instance Learning for Whole Slide Image Classification. CoRR Olga Fourkioti, Avi Arampatzis, Chen Jin, Matt De Vries, Chris Bakal
2023	—	`conf`	DUTH at SemEval-2023 Task 9: An Ensemble Approach for Twitter Intimacy Analysis. SemEval@ACL Giorgos Arampatzis, Vasileios Perifanis, Symeon Symeonidis, Avi Arampatzis
2023	—	`ed.`	Experimental IR Meets Multilinguality, Multimodality, and Interaction - 14th International Conference of the CLEF Association, CLEF 2023, Thessaloniki, Greece, September 18-21, 2023, Proceedings CLEF Avi Arampatzis, Evangelos Kanoulas, Theodora Tsikrika, Stefanos Vrochidis, Anastasia Giachanou, Dan Li, Mohammad Aliannejadi, Michalis Vlachos, Guglielmo Faggioli, Nicola Ferro
2023	J	`jnl`	Report on the 14th Conference and Labs of the Evaluation Forum (CLEF 2023): Experimental IR Meets Multilinguality, Multimodality, and Interaction. SIGIR Forum Mohammad Aliannejadi, Avi Arampatzis, Guglielmo Faggioli, Nicola Ferro, Anastasia Giachanou, Evangelos Kanoulas, Dan Li, Theodora Tsikrika, Michalis Vlachos, Stefanos Vrochidis
2022	J	`jnl`	The climate change Twitter dataset. Expert Syst. Appl. Dimitrios Effrosynidis, Alexandros Karasakalidis, Georgios K. Sylaios, Avi Arampatzis
2022	J	`jnl`	Unsupervised consumer intention and sentiment mining from microblogging data as a business intelligence tool. Oper. Res. Symeon Symeonidis, Georgios Peikos, Avi Arampatzis
2021	J	`jnl`	An evaluation of feature selection methods for environmental data. Ecol. Informatics Dimitrios Effrosynidis, Avi Arampatzis
2021	—	`conf`	DUTH at SemEval-2021 Task 7: Is Conventional Machine Learning for Humorous and Offensive Tasks enough in 2021? SemEval@ACL/IJCNLP Alexandros Karasakalidis, Dimitrios Effrosynidis, Avi Arampatzis
2021	J	`jnl`	Pseudo relevance feedback optimization. Inf. Retr. J. Avi Arampatzis, Georgios Peikos, Symeon Symeonidis
2021	—	`conf`	Transfer Learning for Automated Responses to the BDI Questionnaire. CLEF (Working Notes) Christoforos Spartalis, George Drosatos, Avi Arampatzis
2021	J	`jnl`	What we see in a photograph: content selection for image captioning. Vis. Comput. Georgios Barlas, Christos Veinidis, Avi Arampatzis
2020	—	`conf`	DUTH at SemEval-2020 Task 11: BERT with Entity Mapping for Propaganda Classification. SemEval@COLING Anastasios Bairaktaris, Symeon Symeonidis, Avi Arampatzis
2020	J	`jnl`	DUTH at SemEval-2020 Task 11: BERT with Entity Mapping for Propaganda Classification. CoRR Anastasios Bairaktaris, Symeon Symeonidis, Avi Arampatzis
2020	—	`conf`	DUTh at TREC 2020 Conversational Assistance Track. TREC Michalis Fotiadis, Georgios Peikos, Symeon Symeonidis, Avi Arampatzis
2020	—	`ed.`	Experimental IR Meets Multilinguality, Multimodality, and Interaction - 11th International Conference of the CLEF Association, CLEF 2020, Thessaloniki, Greece, September 22-25, 2020, Proceedings CLEF Avi Arampatzis, Evangelos Kanoulas, Theodora Tsikrika, Stefanos Vrochidis, Hideo Joho, Christina Lioma, Carsten Eickhoff, Aurélie Névéol, Linda Cappellato, Nicola Ferro
2020	J	`jnl`	Report on CLEF 2020. SIGIR Forum Avi Arampatzis, Linda Cappellato, Carsten Eickhoff, Nicola Ferro, Hideo Joho, Evangelos Kanoulas, Christina Lioma, Aurélie Névéol, Theodora Tsikrika, Stefanos Vrochidis
2020	J	`jnl`	The Keyboard Knows About You: Revealing User Characteristics via Keystroke Dynamics. Int. J. Technoethics Ioannis Tsimperidis, Avi Arampatzis
2019	—	`conf`	DUTH at SemEval-2019 Task 8: Part-Of-Speech Features for Question Classification. SemEval@NAACL-HLT Anastasios Bairaktaris, Symeon Symeonidis, Avi Arampatzis
2019	J	`jnl`	Language models and fusion for authorship attribution. Inf. Process. Manag. Olga Fourkioti, Symeon Symeonidis, Avi Arampatzis
2018	J	`jnl`	A comparative evaluation of pre-processing techniques and their interactions for twitter sentiment analysis. Expert Syst. Appl. Symeon Symeonidis, Dimitrios Effrosynidis, Avi Arampatzis
2018	—	`conf`	DUTH at SemEval-2018 Task 2: Emoji Prediction in Tweets. SemEval@NAACL-HLT Dimitrios Effrosynidis, Georgios Peikos, Symeon Symeonidis, Avi Arampatzis
2018	J	`jnl`	Keystroke dynamics features for gender recognition. Digit. Investig. Ioannis Tsimperidis, Avi Arampatzis, Alexandros Karakos
2018	J	`jnl`	Seagrass detection in the mediterranean: A supervised learning approach. Ecol. Informatics Dimitrios Effrosynidis, Avi Arampatzis, Georgios K. Sylaios
2018	J	`jnl`	Suggesting Points-of-Interest via Content-Based, Collaborative, and Hybrid Fusion Methods in Mobile Devices. ACM Trans. Inf. Syst. Avi Arampatzis, Georgios Kalamatianos
2018	J	`jnl`	Towards the creation of an emotion lexicon for microblogging. J. Syst. Inf. Technol. Georgios Kalamatianos, Symeon Symeonidis, Dimitrios Mallis, Avi Arampatzis
2017	B	`conf`	A Comparative Study of Language Modeling to Instance-Based Methods, and Feature Combinations for Authorship Attribution. TPDL Olga Fourkioti, Symeon Symeonidis, Avi Arampatzis
2017	B	`conf`	A Comparison of Pre-processing Techniques for Twitter Sentiment Analysis. TPDL Dimitrios Effrosynidis, Symeon Symeonidis, Avi Arampatzis
2017	—	`conf`	A Half-Life Decaying Model for Recommender Systems with Matrix Factorization. TDDL/MDQual/Futurity@TPDL Panagiotis Ardagelou, Avi Arampatzis
2017	—	`conf`	DUTH at SemEval-2017 Task 4: A Voting Classification Approach for Twitter Sentiment Analysis. SemEval@ACL Symeon Symeonidis, Dimitrios Effrosynidis, John Kordonis, Avi Arampatzis
2017	—	`conf`	DUTH at SemEval-2017 Task 5: Sentiment Predictability in Financial Microblogging and News Articles. SemEval@ACL Symeon Symeonidis, John Kordonis, Dimitrios Effrosynidis, Avi Arampatzis
2016	J	`jnl`	A Privacy-by-Design Contextual Suggestion System for Tourism. J. Sens. Actuator Networks Pavlos S. Efraimidis, George Drosatos, Avi Arampatzis, Giorgos Stamatelatos, Ioannis N. Athanasiadis
2016	—	`conf`	Augmenting Medical Queries with UMLS Concepts via MetaMap. TREC Christopher Agrafiotes, Avi Arampatzis
2016	—	`conf`	DUTh at the ImageCLEF 2016 Image Annotation Task: Content Selection. CLEF (Working Notes) Georgios Barlas, Maria Ntonti, Avi Arampatzis
2016	—	`conf`	Recommending Points-of-Interest via Weighted kNN, Rated Rocchio, and Borda Count Fusion. TREC Georgios Kalamatianos, Avi Arampatzis
2016	—	`conf`	Stock Price Forecasting via Sentiment Analysis on Twitter. PCI John Kordonis, Symeon Symeonidis, Avi Arampatzis
2015	—	`conf`	Computational intelligence in optimal portfolio selection - The PI model. IISA Nikos Loukeris, Yiannis S. Boutalis, Avi Arampatzis, S. Livanis, Lysimachos Maltoudoglou
2015	—	`conf`	DUTH at TREC 2015 Clinical Decision Support Track. TREC George Drosatos, Stefanos Roumeliotis, Eleni Kaldoudi, Avi Arampatzis
2015	—	`conf`	Hybrid Jordan Elman nets in portfolio selection. IISA Nikos Loukeris, Yiannis S. Boutalis, S. Livanis, Avi Arampatzis, Lysimachos Maltoudoglou
2015	B	`conf`	Pythia: A Privacy-Enhanced Personalized Contextual Suggestion System for Tourism. COMPSAC George Drosatos, Pavlos S. Efraimidis, Avi Arampatzis, Giorgos Stamatelatos, Ioannis N. Athanasiadis
2015	—	`conf`	Sentiment analysis of greek tweets and hashtags using a sentiment lexicon. Panhellenic Conference on Informatics Georgios Kalamatianos, Dimitrios Mallis, Symeon Symeonidis, Avi Arampatzis
2015	—	`conf`	Social network analysis of public lists of POIs. Panhellenic Conference on Informatics Ioannis Karagiannis, Avi Arampatzis, Pavlos S. Efraimidis, Giorgos Stamatelatos
2015	J	`jnl`	Versatile Query Scrambling for Private Web Search. Inf. Retr. J. Avi Arampatzis, George Drosatos, Pavlos S. Efraimidis
2013	A	`conf`	A Versatile Tool for Privacy-Enhanced Web Search. ECIR Avi Arampatzis, George Drosatos, Pavlos S. Efraimidis
2013	J	`jnl`	A query scrambler for search privacy on the internet. Inf. Retr. Avi Arampatzis, Pavlos S. Efraimidis, George Drosatos
2013	—	`conf`	DUTH at TREC 2013 Contextual Suggestion Track. TREC George Drosatos, Giorgos Stamatelatos, Avi Arampatzis, Pavlos S. Efraimidis
2013	J	`jnl`	Dynamic two-stage image retrieval from large multimedia databases. Inf. Process. Manag. Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
2013	A	`conf`	On CORI Results Merging. ECIR Ilya Markov, Avi Arampatzis, Fabio Crestani
2012	B	`conf`	A Fuzzy Rank-Based Late Fusion Method for Image Retrieval. MMM Savvas A. Chatzichristofis, Konstantinos Zagoris, Yiannis S. Boutalis, Avi Arampatzis
2012	A*	`conf`	Unsupervised linear score normalization revisited. SIGIR Ilya Markov, Avi Arampatzis, Fabio Crestani
2011	A*	`conf`	Bag-of-visual-words vs global image descriptors on two-stage multimodal retrieval. SIGIR Savvas A. Chatzichristofis, Konstantinos Zagoris, Avi Arampatzis
2011	—	`conf`	DUTH at ImageCLEF 2011 Wikipedia Retrieval. CLEF (Notebook Papers/Labs/Workshop) Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
2011	A	`conf`	Dynamic Two-Stage Image Retrieval from Large Multimodal Databases. ECIR Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
2011	A	`conf`	Enhancing Deniability against Query-Logs. ECIR Avi Arampatzis, Pavlos S. Efraimidis, George Drosatos
2011	A	`conf`	Fusion vs. Two-Stage for Multimodal Retrieval. ECIR Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
2011	J	`jnl`	Modeling score distributions in information retrieval. Inf. Retr. Avi Arampatzis, Stephen Robertson
2011	A*	`conf`	The TREC files: the (ground) truth is out there. SIGIR Savvas A. Chatzichristofis, Konstantinos Zagoris, Avi Arampatzis
2010	A	`conf`	An Empirical Study of Query Specificity. ECIR Avi Arampatzis, Jaap Kamps
2010	—	`conf`	DUTH Does Probabilities of Relevance at the Legal Track. TREC Dim P. Papadopoulos, Vicky S. Kalogeiton, Avi Arampatzis
2010	A*	`conf`	Late fusion of compact composite descriptorsfor retrieval from heterogeneous image databases. SIGIR Savvas A. Chatzichristofis, Avi Arampatzis
2010	—	`conf`	Multimedia Search with Noisy Modalities: Fusion and Multistage Retrieval. CLEF (Notebook Papers/LABs/Workshops) Avi Arampatzis, Savvas A. Chatzichristofis, Konstantinos Zagoris
2010	B	`conf`	www.MMRetrieval.net: a multimodal search engine. SISAP Konstantinos Zagoris, Avi Arampatzis, Savvas A. Chatzichristofis
2009	A	`conf`	A signal-to-noise approach to score normalization. CIKM Avi Arampatzis, Jaap Kamps
2009	Misc	`conf`	Score Distributions in Information Retrieval. ICTIR Avi Arampatzis, Stephen Robertson, Jaap Kamps
2009	A*	`conf`	Where to stop reading a ranked list?: threshold optimization using truncated score distributions. SIGIR Avi Arampatzis, Jaap Kamps, Stephen Robertson
2008	A*	`conf`	A study of query length. SIGIR Avi Arampatzis, Jaap Kamps
2008	—	`conf`	Where to Stop Reading a Ranked List? TREC Avi Arampatzis, Jaap Kamps
2007	—	`conf`	Access to Legal Documents: Exact Match, Best Match, and Combinations. TREC Avi Arampatzis, Jaap Kamps, Martijn Kooken, Nir Nussbaum
2007	—	`conf`	Deriving a Domain Specific Test Collection from a Query Log. LaTeCH@ACL 2007 Avi Arampatzis, Jaap Kamps, Marijn Koolen, Nir Nussbaum
2007	J	`jnl`	The design and implementation of SPIRIT: a spatially aware search engine for information retrieval on the Internet. Int. J. Geogr. Inf. Sci. 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
2007	—	`conf`	Unified Access to Heterogeneous Data in Cultural Heritage. RIAO Marijn Koolen, Avi Arampatzis, Jaap Kamps, Vincent de Keijzer, Nir Nussbaum
2006	J	`jnl`	Web-based delineation of imprecise regions. Comput. Environ. Urban Syst. Avi Arampatzis, Marc J. van Kreveld, Iris Reinbacher, Christopher B. Jones, Subodh Vaid, Paul D. Clough, Hideo Joho, Mark Sanderson
2005	J	`jnl`	Multi-Dimensional Scattered Ranking Methods for Geographic Information Retrieval. GeoInformatica Marc J. van Kreveld, Iris Reinbacher, Avi Arampatzis, Roelof van Zwol
2004	C	`conf`	Distributed Ranking Methods for Geographic Information Retrieval. SDH Marc J. van Kreveld, Iris Reinbacher, Avi Arampatzis, Roelof van Zwol
2001	A*	`conf`	The Score-Distributional Threshold Optimization for Adaptive Binary Classification Tasks. SIGIR Avi Arampatzis, André van Hameren
2001	—	`conf`	Unbiased S-D Threshold Optimization, Initial Query Degradation, Decay, and Incrementality, for Adaptive Document Filtering. TREC Avi Arampatzis
2000	—	`conf`	Incrementality, Half-life, and Threshold Optimization for Adaptive Document Filtering. TREC Avi Arampatzis, Jean Beney, Cornelis H. A. Koster, Theo P. van der Weide
2000	—	`conf`	Term Weighting for Filtering based on Distribution of Terms over Time. RIAO Avi Arampatzis, Theo P. van der Weide, Cornelis H. A. Koster, Patrick van Bommel
1998	J	`jnl`	Phase-Based Information Retrieval. Inf. Process. Manag. Avi Arampatzis, T. Tsoris, Cornelis H. A. Koster, Theo P. van der Weide
1997	—	`conf`	IRENA: Information Retrieval Engine based on Natural Language Analysis. RIAO Avi Arampatzis, T. Tsoris, Cornelis H. A. Koster