Dimitris Effrosynidis

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Experienced Data Scientist with a Ph.D. in Data Science, blending 6+ years of research expertise with 4+ years in business. Proven track record in analytics, programming, and modeling. Published 13 papers, executed successful projects, and showcased skills through blogging and GitHub. Dedicated to ongoing learning and staying abreast of industry trends.

Skills

Python
MySQL
Data Mining
Data Analysis
Data Visualization
Machine Learning

Publications

2023

Time series and regression methods for univariate environmental forecasting: An empirical evaluation.
Dimitrios Effrosynidis, Evangelos Spiliotis, Georgios Sylaios, Avi Arampatzis. Science of The Total Environment, Volume 875, pages 162580, June 2023. © Elsevier | 2021 Impact Factor: 10.754; 5-Year Impact Factor: 8.01, 6 Citations.

2022

Exploring Climate Change on Twitter Using Seven Aspects: Stance, Sentiment, Aggressiveness, Temperature, Gender, Topics, and Disasters.
Dimitrios Effrosynidis, Georgios Sylaios, Avi Arampatzis. Plos one, Volume 17.9, pages e0274213, September 2022. © Public Library of Science San Francisco, CA USA | 2021 Impact Factor: 3.752; 5-Year Impact Factor: 3.272, 13 Citations.

The climate change Twitter dataset.
Dimitrios Effrosynidis, Alexandros Karasakalidis, Georgios Sylaios, Avi Arampatzis. Expert Systems with Applications, Volume 204, pages 117541, October 2022. © Elsevier. | 2021 Impact Factor: 8.665; 5-Year Impact Factor: 8.093, 29 Citations.

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. In: Proceedings of the 15th International Workshop on Semantic Evaluation, SemEval@ACL 2021, pp. 1125-1129, August 2021. © Association for Computational Linguistics 2 Citations.

An evaluation of feature selection methods for environmental data.
Dimitrios Effrosynidis, Avi Arampatzis. Ecological Informatics, Volume 61, pages 101224, March 2021. © Elsevier. | 2021 Impact Factor: 4.495; 5-Year Impact Factor: 4.180, 88 Citations.

2020

Species Distribution Modelling via Feature Engineering and Machine Learning for Pelagic Fishes in the Mediterranean Sea.
Dimitrios Effrosynidis, Athanassios Tsikliras, Avi Arampatzis, Georgios Sylaios. Applied Sciences, Volume 10, December 2020. © MDPI. | 2021 Impact Factor: 2.679; 5-Year Impact Factor: 2.736, 14 Citations.

2019

Seagrass and Hydrographic data for the Mediterranean Sea.
Dimitrios Effrosynidis, Avi Arampatzis, and Georgios Sylaios. Data in brief, Volume 25, August 2019. © Elsevier. | 2021 Impact Factor: 1.133; 5-Year Impact Factor: 1.128, 5 Citations.

2018

Seagrass Detection in the Mediterranean: A Supervised Learning Approach.
Dimitrios Effrosynidis, Avi Arampatzis, and Georgios Sylaios. Ecological informatics, Volume 48, pages 158-170, November 2018. © Elsevier. | 2021 Impact Factor: 4.495; 5-Year Impact Factor: 4.180, 34 Citations.

A Comparative Evaluation of Pre-processing Techniques and their Interactions for Twitter Sentiment Analysis.
Symeon Symeonidis, Dimitrios Effrosynidis, Avi Arampatzis. Expert Systems with Applications, Volume 110, pages 298-310, November 2018. © Elsevier. | 2021 Impact Factor: 8.665; 5-Year Impact Factor: 8.093, 232 Citations.

DUTH at SemEval-2018 Task 2: Emoji Prediction in Tweets.
Dimitrios Effrosynidis, Georgios Peikos, Symeon Symeonidis, Avi Arampatzis. In: Proceedings of the 12th International Workshop on Semantic Evaluation, SemEval@ACL 2018, pp. 466-469, New Orleans, Louisiana, June 5-6, 2018. © Association for Computational Linguistics. 8 Citations.

2017

A Comparison of Pre-processing Techniques for Twitter Sentiment Analysis.
Dimitrios Effrosynidis, Symeon Symeonidis, Avi Arampatzis. In: Research and Advanced Technology for Digital Libraries - 21st International Conference on Theory and Practice of Digital Libraries, TPDL 2017, pp. 394-406, Thessaloniki, Greece, September 18-21, 2017. LNCS 10450; © Springer 67 Citations.

DUTH at SemEval-2017 Task 5: Sentiment Predictability in Financial Microblogging and News Articles.
Symeon Symeonidis, John Kordonis, Dimitrios Effrosynidis, Avi Arampatzis. In: Proceedings of the 11th International Workshop on Semantic Evaluation, SemEval@ACL 2017, pp. 861-865, Vancouver, Canada, August 3-4, 2017. © Association for Computational Linguistics 3 Citations.

DUTH at SemEval-2017 Task 4: A Voting Classification Approach for Twitter Sentiment Analysis.
Symeon Symeonidis, Dimitrios Effrosynidis, John Kordonis, Avi Arampatzis. In: Proceedings of the 11th International Workshop on Semantic Evaluation, SemEval@ACL 2017, pp. 704-708, Vancouver, Canada, August 3-4, 2017. © Association for Computational Linguistics 11 Citations.