The Nash equilibrium is used to estimate the parameters of a Probit binary classification model transformed into a multiplayer game. Each training data instance is a player of the game aiming to maximize its own log likelihood function. The Nash equilibrium of this game is approximated by modifying the Covariance Matrix Adaptation Evolution Strategy…
The critical node detection problem describes a class of graph problems that involves identifying sets of nodes that influence a given graph metric. One variant of this problem is to find the nodes that – when removed from the graph – maximize the number of connected components in the remaining graph. This is an…
Photovoltaic Panel Systems are already a commodity, the widespread use of such systems being no longer a pioneering topic. Monitoring these power generation systems is not a trivial task since the hunger of real-time data is growing continuously. The advent of IoT technologies, the ubiquitous presence of communication technologies, including remote areas, are making…
Online publishers rely on different techniques to trap web visitors, clickbait being one such technique. Besides being a bad habit, clickbait is also a strong indicator for fake news spreading. Its presence in online media leads to an overall bad browsing experience for the web consumer. Recently, big players on the Internet scene, such…
Nowadays, software systems encounter repeated modifications in order to satisfy any requirement regarding a business change. To assure that these changes do not affect systems' proper functioning, those parts affected by the changes need to be retested, minimizing the negative impact of performed modifications on another part of the software. In this research, we…
Interacting with businesses, searching for information, or accessing news and entertainment sources all have a common feature, they are predominately accessed nowadays from mobile applications. The software architecture used in building those kinds of products represents a major factor in their lifecycle, costs, and roadmap, as it affects their maintainability and extensibility. In this…
In the last years, a wide range of new similarity measures has been designed and applied to different contexts. Currently, there’s a deep lack in the validation and evaluation steps for novel similarities. In general, new measures are validated mostly through numerical experiments using different data sets. But this is not enough, as in…
Education, like the large majority of domains, has been impacted by the rapid development of communications and technology. What was perceived before as an ideal, i.e., the enhancement of the learning process through modern techniques, now it has been rapidly transformed into a mandatory requirement due to the current COVID-19 pandemic . Edutainment applications…
Determining the critical nodes in a network given a certain network measure is a computational challenging problem that requires the design of adaptive and scalable algorithms. The number of connected components in a graph is an example of such a measure: in this case the nodes considered critical are those that, if removed from…
Critical node detection is a crucial task in network analysis. In this article a new problem is proposed, the critical node detection in hypergraphs, which are a generalization of the ‘traditional’ graphs. A genetic algorithm is proposed to solve this problem and as an application an inflation dataset is transformed in a hypergraph and…