1,720,999 research outputs found
Towards Compliance of Smart Contracts with the European Union Data Act
No full textThe recent proposal of the European Union Data Act adopted by the European Commission has the goal to create fair rules for sharing and using data. An important role in this context is the one played by smart contracts, that are considered as a key technology to enable effective and consensual data sharing. For this purpose, the proposal sets up some requirements for smart contracts, specifically in the context of interoperability with applications that process data. There is a need for scientific work that explains which steps to take so that smart contracts comply with the proposal. This paper aims to begin addressing this gap by considering each one of the requirements and by providing a series of techniques from different areas of computer science to comply with them
An Ontology of Changes in Normative Systems from an Agentive Viewpoint
No full textDefeasible deontic logic has shown to be expressive enough to represent a normative system, and therefore compliance to such a system can be automatically checked by means of classical model checking techniques of logical systems. However, normative systems are not static, as they can be actively changed by the legislator over time, directly, by changing one norm. Moreover norms can change passively, either by effect of the change of another piece of the normative system, or by means of the change of meaning that affects terms employed in the norm. Although some efforts have been carried out by scholars in the field of legal reasoning about norm change, there is a lack of uniformity in the representation of these changes, and this is an issue when we aim at deploying the law as an automated platform: we need to introduce changes as effects in the semantics of derivation in a logical system, when the unified viewpoint admits a unified representation as well. We adopt the logical paradigm of agency and provide a classification of changes from an agentive viewpoint that allows a unified representation within the logical language for agents LegalRuleML
A knowledge-intensive methodology for explainable sales prediction
Full text linkSales prediction in food market is a complex issue that has been addressed in the recent past with machine learning techniques. Although some promising results, an experimental work that we describe in this paper shows some drawbacks of the above mentioned data-driven method and habilitates the definition of a novel methodology, strongly involving a piori knowledg
Impact Logic: Reasoning with resources and losses
No full textThe notion of Business Process Compliance has been widely discussed as one of the most important issues to be solved when comparing the description of a business process against a normative background. Many changes have been provided to the basic notion above. The introduction of changes to the normative background has been considered, as well as the idea of Compliance by Design. In this paper, we discuss how to devise a business process that is compliant to an impact constraint set. We shall show that the technical problems determined by this concept are all within the horizon of adding to the logical framework the notions of Resource and Product
Protecting the environment: A multi-agent approach to environmental monitoring
Full text linkIn this paper we discuss a transition model from commonly adopted models of data gathering, transfer and management for environmental monitoring towards more sophisticated ones based on Artificial Intelligence and IoT. The transition model is based on the paradigm of multiple agent systems. The adoption of this transition model is motivated by the need to improve effectiveness, efficiency and interoperability of environmental monitoring by simultaneously guaranteeing its sustainability in economic term
European Union Data Act and Blockchain Technology: Challenges and New Directions
No full textThe European Union Data Act has been in force since 11 January 2024 to regulate the access and use of data and promote a more fair data sharing within the European Economic Area. This regulation could significantly impact blockchain technology, which can facilitate the secure exchange of data, leading to greater transparency, accountability, and auditability. However, compliance with the European Union Data Act may necessitate that blockchain solutions be adjusted accordingly. This paper aims at investigating the applicability and compatibility of blockchain technology with the European Union Data Act context, also considering aspects relevant for other related European regulations, directives, and strategies
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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