Avi Arampatzis

Publication Activity (10 Years)

Years Active: 1997-2024
Publications (10 Years): 35

Top Topics

Authorship Attribution

Portfolio Selection

Top Venues

SemEval@NAACL-HLT

Publications

Dimitrios Effrosynidis, Georgios K. Sylaios, Avi Arampatzis
The Effect of Training Data Size on Disaster Classification from Twitter. Inf. 15 (7) (2024)
Nikolaos Pavlidis, Christos Chrysanthos Nikolaidis, Vasileios Perifanis, Anastasia Papadopoulou, Pavlos S. Efraimidis, Avi Arampatzis
An Extensive Overview of Feature Representation Techniques for Molecule Classification. PCI (2023)
Olga Fourkioti, Avi Arampatzis, Chen Jin, Mat De Vries, Chris Bakal
CAMIL: Context-Aware Multiple Instance Learning for Whole Slide Image Classification. CoRR (2023)
Mohammad Aliannejadi, Avi Arampatzis, Guglielmo Faggioli, Nicola Ferro, Anastasia Giachanou, Evangelos Kanoulas, Dan Li, Theodora Tsikrika, Michalis Vlachos, Stefanos Vrochidis
Report on the 14th Conference and Labs of the Evaluation Forum (CLEF 2023): Experimental IR Meets Multilinguality, Multimodality, and Interaction. SIGIR Forum 57 (2) (2023)
Giorgos Arampatzis, Vasileios Perifanis, Symeon Symeonidis, Avi Arampatzis
DUTH at SemEval-2023 Task 9: An Ensemble Approach for Twitter Intimacy Analysis. SemEval@ACL (2023)
Dimitrios Effrosynidis, Alexandros Karasakalidis, Georgios K. Sylaios, Avi Arampatzis
The climate change Twitter dataset. Expert Syst. Appl. 204 (2022)
Symeon Symeonidis, Georgios Peikos, Avi Arampatzis
Unsupervised consumer intention and sentiment mining from microblogging data as a business intelligence tool. Oper. Res. 22 (5) (2022)
Georgios Barlas, Christos Veinidis, Avi Arampatzis
What we see in a photograph: content selection for image captioning. Vis. Comput. 37 (6) (2021)
Christoforos Spartalis, George Drosatos, Avi Arampatzis
Transfer Learning for Automated Responses to the BDI Questionnaire. CLEF (Working Notes) (2021)
Dimitrios Effrosynidis, Avi Arampatzis
An evaluation of feature selection methods for environmental data. Ecol. Informatics 61 (2021)
Alexandros Karasakalidis, Dimitrios Effrosynidis, Avi Arampatzis
DUTH at SemEval-2021 Task 7: Is Conventional Machine Learning for Humorous and Offensive Tasks enough in 2021? SemEval@ACL/IJCNLP (2021)
Avi Arampatzis, Georgios Peikos, Symeon Symeonidis
Pseudo relevance feedback optimization. Inf. Retr. J. 24 (4-5) (2021)
Michalis Fotiadis, Georgios Peikos, Symeon Symeonidis, Avi Arampatzis
DUTh at TREC 2020 Conversational Assistance Track. TREC (2020)
Avi Arampatzis, Linda Cappellato, Carsten Eickhoff, Nicola Ferro, Hideo Joho, Evangelos Kanoulas, Christina Lioma, Aurélie Névéol, Theodora Tsikrika, Stefanos Vrochidis
Report on CLEF 2020. SIGIR Forum 54 (2) (2020)
Ioannis Tsimperidis, Avi Arampatzis
The Keyboard Knows About You: Revealing User Characteristics via Keystroke Dynamics. Int. J. Technoethics 11 (2) (2020)
Anastasios Bairaktaris, Symeon Symeonidis, Avi Arampatzis
DUTH at SemEval-2020 Task 11: BERT with Entity Mapping for Propaganda Classification. CoRR (2020)
Anastasios Bairaktaris, Symeon Symeonidis, Avi Arampatzis
DUTH at SemEval-2020 Task 11: BERT with Entity Mapping for Propaganda Classification. SemEval@COLING (2020)
Olga Fourkioti, Symeon Symeonidis, Avi Arampatzis
Language models and fusion for authorship attribution. Inf. Process. Manag. 56 (6) (2019)
Anastasios Bairaktaris, Symeon Symeonidis, Avi Arampatzis
DUTH at SemEval-2019 Task 8: Part-Of-Speech Features for Question Classification. SemEval@NAACL-HLT (2019)
Ioannis Tsimperidis, Avi Arampatzis, Alexandros Karakos
Keystroke dynamics features for gender recognition. Digit. Investig. 24 (2018)
Symeon Symeonidis, Dimitrios Effrosynidis, Avi Arampatzis
A comparative evaluation of pre-processing techniques and their interactions for twitter sentiment analysis. Expert Syst. Appl. 110 (2018)
Dimitrios Effrosynidis, Georgios Peikos, Symeon Symeonidis, Avi Arampatzis
DUTH at SemEval-2018 Task 2: Emoji Prediction in Tweets. SemEval@NAACL-HLT (2018)
Avi Arampatzis, Georgios Kalamatianos
Suggesting Points-of-Interest via Content-Based, Collaborative, and Hybrid Fusion Methods in Mobile Devices. ACM Trans. Inf. Syst. 36 (3) (2018)
Dimitrios Effrosynidis, Avi Arampatzis, Georgios K. Sylaios
Seagrass detection in the mediterranean: A supervised learning approach. Ecol. Informatics 48 (2018)
Georgios Kalamatianos, Symeon Symeonidis, Dimitrios Mallis, Avi Arampatzis
Towards the creation of an emotion lexicon for microblogging. J. Syst. Inf. Technol. 20 (2) (2018)
Panagiotis Ardagelou, Avi Arampatzis
A Half-Life Decaying Model for Recommender Systems with Matrix Factorization. TDDL/MDQual/Futurity@TPDL (2017)
Symeon Symeonidis, Dimitrios Effrosynidis, John Kordonis, Avi Arampatzis
DUTH at SemEval-2017 Task 4: A Voting Classification Approach for Twitter Sentiment Analysis. SemEval@ACL (2017)
Olga Fourkioti, Symeon Symeonidis, Avi Arampatzis
A Comparative Study of Language Modeling to Instance-Based Methods, and Feature Combinations for Authorship Attribution. TPDL (2017)
Symeon Symeonidis, John Kordonis, Dimitrios Effrosynidis, Avi Arampatzis
DUTH at SemEval-2017 Task 5: Sentiment Predictability in Financial Microblogging and News Articles. SemEval@ACL (2017)
Dimitrios Effrosynidis, Symeon Symeonidis, Avi Arampatzis
A Comparison of Pre-processing Techniques for Twitter Sentiment Analysis. TPDL (2017)
John Kordonis, Symeon Symeonidis, Avi Arampatzis
Stock Price Forecasting via Sentiment Analysis on Twitter. PCI (2016)
Pavlos S. Efraimidis, George Drosatos, Avi Arampatzis, Giorgos Stamatelatos, Ioannis N. Athanasiadis
A Privacy-by-Design Contextual Suggestion System for Tourism. J. Sens. Actuator Networks 5 (2) (2016)
Georgios Barlas, Maria Ntonti, Avi Arampatzis
DUTh at the ImageCLEF 2016 Image Annotation Task: Content Selection. CLEF (Working Notes) (2016)
Georgios Kalamatianos, Avi Arampatzis
Recommending Points-of-Interest via Weighted kNN, Rated Rocchio, and Borda Count Fusion. TREC (2016)
Christopher Agrafiotes, Avi Arampatzis
Augmenting Medical Queries with UMLS Concepts via MetaMap. TREC (2016)
Nikos Loukeris, Yiannis S. Boutalis, S. Livanis, Avi Arampatzis, Lysimachos Maltoudoglou
Hybrid Jordan Elman nets in portfolio selection. IISA (2015)
Nikos Loukeris, Yiannis S. Boutalis, Avi Arampatzis, S. Livanis, Lysimachos Maltoudoglou
Computational intelligence in optimal portfolio selection - The PI model. IISA (2015)
George Drosatos, Pavlos S. Efraimidis, Avi Arampatzis, Giorgos Stamatelatos, Ioannis N. Athanasiadis
Pythia: A Privacy-Enhanced Personalized Contextual Suggestion System for Tourism. COMPSAC (2015)
Avi Arampatzis, George Drosatos, Pavlos S. Efraimidis
Versatile Query Scrambling for Private Web Search. Inf. Retr. J. 18 (4) (2015)
Georgios Kalamatianos, Dimitrios Mallis, Symeon Symeonidis, Avi Arampatzis
Sentiment analysis of greek tweets and hashtags using a sentiment lexicon. Panhellenic Conference on Informatics (2015)
Ioannis Karagiannis, Avi Arampatzis, Pavlos S. Efraimidis, Giorgos Stamatelatos
Social network analysis of public lists of POIs. Panhellenic Conference on Informatics (2015)
George Drosatos, Stefanos Roumeliotis, Eleni Kaldoudi, Avi Arampatzis
DUTH at TREC 2015 Clinical Decision Support Track. TREC (2015)
Avi Arampatzis, George Drosatos, Pavlos S. Efraimidis
A Versatile Tool for Privacy-Enhanced Web Search. ECIR (2013)
Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
Dynamic two-stage image retrieval from large multimedia databases. Inf. Process. Manag. 49 (1) (2013)
George Drosatos, Giorgos Stamatelatos, Avi Arampatzis, Pavlos S. Efraimidis
DUTH at TREC 2013 Contextual Suggestion Track. TREC (2013)
Ilya Markov, Avi Arampatzis, Fabio Crestani
On CORI Results Merging. ECIR (2013)
Avi Arampatzis, Pavlos S. Efraimidis, George Drosatos
A query scrambler for search privacy on the internet. Inf. Retr. 16 (6) (2013)
Savvas A. Chatzichristofis, Konstantinos Zagoris, Yiannis S. Boutalis, Avi Arampatzis
A Fuzzy Rank-Based Late Fusion Method for Image Retrieval. MMM (2012)
Ilya Markov, Avi Arampatzis, Fabio Crestani
Unsupervised linear score normalization revisited. SIGIR (2012)
Savvas A. Chatzichristofis, Konstantinos Zagoris, Avi Arampatzis
Bag-of-visual-words vs global image descriptors on two-stage multimodal retrieval. SIGIR (2011)
Avi Arampatzis, Pavlos S. Efraimidis, George Drosatos
Enhancing Deniability against Query-Logs. ECIR (2011)
Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
Fusion vs. Two-Stage for Multimodal Retrieval. ECIR (2011)
Avi Arampatzis, Stephen Robertson
Modeling score distributions in information retrieval. Inf. Retr. 14 (1) (2011)
Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
DUTH at ImageCLEF 2011 Wikipedia Retrieval. CLEF (Notebook Papers/Labs/Workshop) (2011)
Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
Dynamic Two-Stage Image Retrieval from Large Multimodal Databases. ECIR (2011)
Savvas A. Chatzichristofis, Konstantinos Zagoris, Avi Arampatzis
The TREC files: the (ground) truth is out there. SIGIR (2011)
Avi Arampatzis, Savvas A. Chatzichristofis, Konstantinos Zagoris
Multimedia Search with Noisy Modalities: Fusion and Multistage Retrieval. CLEF (Notebook Papers/LABs/Workshops) (2010)
Avi Arampatzis, Jaap Kamps
An Empirical Study of Query Specificity. ECIR (2010)
Dim P. Papadopoulos, Vicky S. Kalogeiton, Avi Arampatzis
DUTH Does Probabilities of Relevance at the Legal Track. TREC (2010)
Savvas A. Chatzichristofis, Avi Arampatzis
Late fusion of compact composite descriptorsfor retrieval from heterogeneous image databases. SIGIR (2010)
Konstantinos Zagoris, Avi Arampatzis, Savvas A. Chatzichristofis
www.MMRetrieval.net: a multimodal search engine. SISAP (2010)
Avi Arampatzis, Jaap Kamps, Stephen Robertson
Where to stop reading a ranked list?: threshold optimization using truncated score distributions. SIGIR (2009)
Avi Arampatzis, Jaap Kamps
A signal-to-noise approach to score normalization. CIKM (2009)
Avi Arampatzis, Stephen Robertson, Jaap Kamps
Score Distributions in Information Retrieval. ICTIR (2009)
Avi Arampatzis, Jaap Kamps
A study of query length. SIGIR (2008)
Avi Arampatzis, Jaap Kamps
Where to Stop Reading a Ranked List? TREC (2008)
Marijn Koolen, Avi Arampatzis, Jaap Kamps, Vincent de Keijzer, Nir Nussbaum
Unified Access to Heterogeneous Data in Cultural Heritage. RIAO (2007)
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
The design and implementation of SPIRIT: a spatially aware search engine for information retrieval on the Internet. Int. J. Geogr. Inf. Sci. 21 (7) (2007)
Avi Arampatzis, Jaap Kamps, Martijn Kooken, Nir Nussbaum
Access to Legal Documents: Exact Match, Best Match, and Combinations. TREC (2007)
Avi Arampatzis, Jaap Kamps, Marijn Koolen, Nir Nussbaum
Deriving a Domain Specific Test Collection from a Query Log. LaTeCH@ACL 2007 (2007)
Avi Arampatzis, Marc J. van Kreveld, Iris Reinbacher, Christopher B. Jones, Subodh Vaid, Paul D. Clough, Hideo Joho, Mark Sanderson
Web-based delineation of imprecise regions. Comput. Environ. Urban Syst. 30 (4) (2006)
Marc J. van Kreveld, Iris Reinbacher, Avi Arampatzis, Roelof van Zwol
Multi-Dimensional Scattered Ranking Methods for Geographic Information Retrieval. GeoInformatica 9 (1) (2005)
Marc J. van Kreveld, Iris Reinbacher, Avi Arampatzis, Roelof van Zwol
Distributed Ranking Methods for Geographic Information Retrieval. SDH (2004)
Avi Arampatzis, André van Hameren
The Score-Distributional Threshold Optimization for Adaptive Binary Classification Tasks. SIGIR (2001)
Avi Arampatzis
Unbiased S-D Threshold Optimization, Initial Query Degradation, Decay, and Incrementality, for Adaptive Document Filtering. TREC (2001)
Avi Arampatzis, Theo P. van der Weide, Cornelis H. A. Koster, Patrick van Bommel
Term Weighting for Filtering based on Distribution of Terms over Time. RIAO (2000)
Avi Arampatzis, Jean Beney, Cornelis H. A. Koster, Theo P. van der Weide
Incrementality, Half-life, and Threshold Optimization for Adaptive Document Filtering. TREC (2000)
Avi Arampatzis, T. Tsoris, Cornelis H. A. Koster, Theo P. van der Weide
Phase-Based Information Retrieval. Inf. Process. Manag. 34 (6) (1998)
Avi Arampatzis, T. Tsoris, Cornelis H. A. Koster
IRENA: Information Retrieval Engine based on Natural Language Analysis. RIAO (1997)