599 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National and Kapodistrian University of AthensGR24 papers
- National Technical University of AthensGR11 papers
- Athena Research and Innovation Center In Information Communication & Knowledge TechnologiesGR9 papers
- Athens State UniversityUS7 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Centrum Wiskunde & InformaticaNL7 papers
- Delft University of TechnologyNL7 papers
- École PolytechniqueFR7 papers
- University College LondonGB7 papers
- University of OxfordGB7 papers
- Laboratoire d'Informatique de l'École PolytechniqueFR6 papers
- University of AmsterdamNL6 papers
19 papers · 1 filter
Software Engineering Education Knowledge Versus Industrial Needs
Georgios Liargkovas, Angeliki Papadopoulou, Zoe Kotti +1
Contribution: Determine and analyze the gap between software practitioners' education outlined in the 2014IEEE/ACM Software Engineering Education Knowledge (SEEK) and industrial ne…
Standing on Shoulders or Feet? An Extended Study on the Usage of the MSR Data Papers
Zoe Kotti, Konstantinos Kravvaritis, Konstantina Dritsa +1
Context: The establishment of the Mining Software Repositories (MSR) data showcase conference track has encouraged researchers to provide data sets as a basis for further empirical…
Toxicity Detection can be Sensitive to the Conversational Context
Alexandros Xenos, John Pavlopoulos, Ion Androutsopoulos +3
User posts whose perceived toxicity depends on the conversational context are rare in current toxicity detection datasets. Hence, toxicity detectors trained on existing datasets wi…
Entropy-based adaptive Hamiltonian Monte Carlo
Marcel Hirt, Michalis K. Titsias, Petros Dellaportas
Hamiltonian Monte Carlo (HMC) is a popular Markov Chain Monte Carlo (MCMC) algorithm to sample from an unnormalized probability distribution. A leapfrog integrator is commonly used…
EDGAR-CORPUS: Billions of Tokens Make The World Go Round
Lefteris Loukas, Manos Fergadiotis, Ion Androutsopoulos +1
We release EDGAR-CORPUS, a novel corpus comprising annual reports from all the publicly traded companies in the US spanning a period of more than 25 years. To the best of our knowl…
Combining COVID-19 Vaccination with Social Distancing Measures
Evangelos F. Magirou
We analyze an optimal control version of a simple SIR epidemiology model that includes a partially specified vaccination policy and takes into account fatigue from protracted appli…
Automated Refactoring of Legacy JavaScript Code to ES6 Modules
Katerina Paltoglou, Vassilis E. Zafeiris, N. A. Diamantidis +1
The JavaScript language did not specify, until ECMAScript 6 (ES6), native features for streamlining encapsulation and modularity. Developer community filled the gap with a prolifer…
Enabling self-verifiable mutable content items in IPFS using Decentralized Identifiers
Nikos Fotiou, Vasilios A. Siris, George C. Polyzos
In IPFS content identifiers are constructed based on the item's data therefore the binding between an item's identifier and its data can be deterministically verified. Nevertheless…
Misuse of the sign test in narrative synthesis of evidence
Stavros Nikolakopoulos
In narrative synthesis of evidence, it can be the case that the only quantitative measures available concerning the efficacy of an intervention is the direction of the effect, i.e.…
A Metropolized adaptive subspace algorithm for high-dimensional Bayesian variable selection
Christian Staerk, Maria Kateri, Ioannis Ntzoufras
A simple and efficient adaptive Markov Chain Monte Carlo (MCMC) method, called the Metropolized Adaptive Subspace (MAdaSub) algorithm, is proposed for sampling from high-dimensiona…
Capability-based access control for multi-tenant systems using OAuth 2.0 and Verifiable Credentials
Nikos Fotiou, Vasilios A. Siris, George C. Polyzos
We propose a capability-based access control technique for sharing Web resources, based on Verifiable Credentials (VCs) and OAuth 2.0. VCs are a secure means for expressing claims…
Age of information distribution under dynamic service preemption
George Kesidis, Takis Konstantopoulos, Michael A. Zazanis
Age of Information (AoI) has emerged as an important quality-of-service measure for applications that prioritize delivery of the freshest information, e.g., virtual or augmented re…
Pareto optimal exchange with indifferent endowments
Pavlos Eirinakis, Ioannis Mourtos, Michalis Samaris
We investigate a market without money in which agents can offer certain goods (or multiple copies of an agent-specific good) in exchange for goods of other agents. The exchange mus…
Paragraph-level Rationale Extraction through Regularization: A case study on European Court of Human Rights Cases
Ilias Chalkidis, Manos Fergadiotis, Dimitrios Tsarapatsanis +3
Interpretability or explainability is an emerging research field in NLP. From a user-centric point of view, the goal is to build models that provide proper justification for their…
Extending the Mann-Kendall test to allow for measurement uncertainty
Stavros Nikolakopoulos, Eric Cator, Mart P. Janssen
The Mann-Kendall test for trend has gained a lot of attention in a range of disciplines, especially in the environmental sciences. One of the drawbacks of the Mann-Kendall test whe…
Bayesian Evidence Synthesis for the common effect model
Stavros Nikolakopoulos, Björn Alfons Edmar, Ioannis Ntzoufras
Bayes Factors, the Bayesian tool for hypothesis testing, are receiving increasing attention in the literature. Compared to their frequentist rivals (-values or test statistics),…
How COVID-19 Is Changing Our Language : Detecting Semantic Shift in Twitter Word Embeddings
Yanzhu Guo, Christos Xypolopoulos, Michalis Vazirgiannis
Words are malleable objects, influenced by events that are reflected in written texts. Situated in the global outbreak of COVID-19, our research aims at detecting semantic shifts i…
Single vs Dynamic Lead-Time Quotations in Make-To-Order Systems with Delay-Averse Customers
Myron Benioudakis, Apostolos Burnetas, George Ioannou
We develop a model for lead-time quotation in a Markovian make-to-order production or service system with strategic customers who exhibit risk aversion. Based on a CARA utility fun…
Learning Parametrised Graph Shift Operators
George Dasoulas, Johannes Lutzeyer, Michalis Vazirgiannis
In many domains data is currently represented as graphs and therefore, the graph representation of this data becomes increasingly important in machine learning. Network data is, im…