Sotiris Karetsos

Prof. Dr. Sotiris Karetsos

Informatics Laboratory, Agricultural University of Athens, Athens, Attikí, Greece
orcid

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2008 in Government Information Quarterly
Verified
Journal Article
Closed access
MNM. Ntaliani
M. Ntaliani
CCC. Costopoulou
C. Costopoulou
Sotiris KaretsosSotiris Karetsos
Sotiris Karetsos

1 March 2010 in Computers and Electronics in Agriculture
Verified
Journal Article
Closed access
EAE. Antonopoulou
E. Antonopoulou
Sotiris KaretsosSotiris Karetsos
Sotiris Karetsos
MMMichael Maliappis
Michael Maliappis
ASA.B. Sideridis
A.B. Sideridis

22 December 2024 in Sensors
Verified
Journal Article
Open access
PDF file
VVVitaskos Vasileios
Vitaskos Vasileios
Konstantinos DemestichasKonstantinos Demestichas
Konstantinos Demestichas
Sotiris KaretsosSotiris Karetsos
Sotiris Karetsos
Constantina CostopoulouConstantina Costopoulou
Constantina Costopoulou
This study presents a blockchain-based traceability system designed specifically for the olive oil supply chain, addressing key challenges in transparency, quality assurance, and fraud prevention. The system integrates Internet of Things (IoT) technology with a decentralized blockchain framework to provide real-time monitoring of critical quality metrics. A practical web application, linked to the Ethereum blockchain, enables stakeholders to track each stage of the supply chain via tamper-proof records. Key functionalities include smart contracts that automate quality checks, ensuring data integrity and providing immediate verification of product authenticity. Initial user feedback highlights the system’s potential to enhance transparency and reduce fraud risks in the olive oil market, supporting consumer trust and regulatory compliance. This approach offers a scalable solution adaptable to other high-value agricultural products, demonstrating the blockchain’s transformative potential for secure and transparent food traceability.

1 March 2010 in Computers and Electronics in Agriculture
Verified
Journal Article
Closed access
MNMaria Ntaliani
Maria Ntaliani
CCConstantina Costopoulou
Constantina Costopoulou
Sotiris KaretsosSotiris Karetsos
Sotiris Karetsos
ETEfthimios Tambouris
Efthimios Tambouris
KTKonstantinos Tarabanis
Konstantinos Tarabanis

18 October 2018 in Scientific Reports
Verified
Journal Article
Open access
PDF file
MVMarijn Van Der Velde
Marijn Van Der Velde
BBB. Baruth
B. Baruth
ABA. Bussay
A. Bussay
ACA. Ceglar
A. Ceglar
SCS. Garcia Condado
S. Garcia Condado
MBM. van Den Berg
M. van Den Berg
Here we assess the quality and in-season development of European wheat (Triticum spp.) yield forecasts during low, medium, and high-yielding years. 440 forecasts were evaluated for 75 wheat forecast years from 1993–2013 for 25 European Union (EU) Member States. By July, years with median yields were accurately forecast with errors below ~2%. Yield forecasts in years with low yields were overestimated by ~10%, while yield forecasts in high-yielding years were underestimated by ~8%. Four-fifths of the lowest yields had a drought or hot driver, a third a wet driver, while a quarter had both. Forecast accuracy of high-yielding years improved gradually during the season, and drought-driven yield reductions were anticipated with lead times of ~2 months. Single, contrasting successive in-season, as well as spatially distant dry and wet extreme synoptic weather systems affected multiple-countries in 2003, ’06, ’07, ’11 and 12’, leading to wheat losses up to 8.1 Mt (>40% of total EU loss). In these years, June forecasts (~ 1-month lead-time) underestimated these impacts by 10.4 to 78.4%. To cope with increasingly unprecedented impacts, near-real-time information fusion needs to underpin operational crop yield forecasting to benefit from improved crop modelling, more detailed and frequent earth observations, and faster computation.

12 August 2014
Verified
Conference Paper
Closed access
IBIrene Biavetti
Irene Biavetti
Sotiris KaretsosSotiris Karetsos
Sotiris Karetsos
ACAndrej Ceglar
Andrej Ceglar
ATAndrea Toreti
Andrea Toreti
PPPanos Panagos
Panos Panagos
The Joint Research Centre of the European Commission has developed Interpolated Meteorological Datasets available on a regular 25x25km grid both to the scientific community and the general public. Among others, the Interpolated Meteorological Datasets include daily maximum/minimum temperature, cumulated daily precipitation, evapotranspiration and wind speed. These datasets can be accessed through a web interface after a simple registration procedure. The Interpolated Meteorological Datasets also serve the Crop Growth Monitoring System (CGMS) at European level. The temporal coverage of the datasets is more than 30 years and the spatial coverage includes EU Member States, neighboring European countries, and the Mediterranean countries. The meteorological data are highly relevant for the development, implementation and assessment of a number of European Union (EU) policy areas: agriculture, soil protection, environment, agriculture, food security, energy, climate change. An online user survey has been carried out in order to assess the impact of the Interpolated Meteorological Datasets on research developments. More than 70% of the users have used the meteorological datasets for research purposes and more than 50% of the users have used those sources as main input for their models. The usefulness of the data scored more than 70% and it is interesting to note that around 25% of the users have published their scientific outputs based on the Interpolated Meteorological Datasets. Finally, the user feedback focuses mostly on improving the data distribution process as well as the visibility of the web platform.JRC.H.4-Monitoring Agricultural Resource