7 research outputs found

    Study of Comparative Clustering of EU Countries Using the DBSCAN and K-means Techniques within the Theoretical Framework of Systemic Geopolitical Analysis

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    As a geographical method of analyzing power redistribution, Systemic Geopolitical Analysis (according to Ioannis Th. Mazis theoretical basis) proposes a multi-dimensional, interdisciplinary research pattern, which embraces economic, cultural, political and defensive facts. The amount of data produced combining these attributes is extremely large and complex. One of the solutions to explore and analyze this data is clustering it. In this work, two clustering algorithms were used, namely DBSCAN and the k-means techniques which both of them cluster data according to its characteristics. While DBSCAN groups data based on the minimum size of participating objects per cluster and the minimum required distance between them, k-means clusters the data objects according the pre-desired number of groups. Thus, since the two methods use different roads to group the data objects, they form different clusters but each one has its importance depending on the characteristics of the applied method. As a result, in this work a comparative study is presented

    Μαθηματική προτυποποίηση της Συστημικής Γεωπολιτικής Αναλύσεως: Μια προσέγγιση της ανάλυσης και πρόβλεψης γεωπολιτικού ρίσκου με την χρήση ποσοτικών μεθόδων

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    Στην ανά χείρας διατριβή, κατατίθεται μια συγκροτημένη πρόταση για την μαθηματική προτυποποίηση της Συστημικής Γεωπολιτικής Αναλύσεως. Βασική στόχευση αποτελεί η διευρεύνηση της μαθηματικής προτυποποίησης της Συστημικής Γεωπολιτικής Ανάλυσης σε βήματα, τα οποία θα περιλαμβάνουν και θα ενσωματώνουν τις ποσοτικές μεθόδους ανάλυσης δεδομένων, στην Συστημική Γεωπολιτική Ανάλυση. Η αρμονική σύνδεση μεταξύ θεωρητικής γνώσης και πρακτικής εφαρμογής, μεταφράζεται σε επέκταση της έρευνας για την αρμονική λειτουργία και συνύπαρξη μεταξύ ποιοτικών και ποσοτικών μεθόδων ανάλυσης σε ένα ενιαίο πλαίσιο, που θα τονίζει την διεπιστημονική φύση της μεθόδου και θα συμβάλει στην αποτελεσματική διαχείριση του γεωπολιτικού κινδύνου κατά την διενέργεια αναλύσεων.In this dissertation, a structured proposal for the mathematical modeling of Systemic Geopolitical Analysis is submitted. The main goal is to investigate the mathematical modeling of Systemic Geopolitical Analysis in steps, which will include and integrate quantitative data analysis methods in Systemic Geopolitical Analysis. The harmonious connection between theoretical knowledge and practical application translates into an extension of the research on the harmonious operation and coexistence between qualitative and quantitative methods of analysis in a single framework, which will emphasize the interdisciplinary nature of the method and contribute to effective geopolitical risk analysis

    LIPIcs, Volume 277, GIScience 2023, Complete Volume

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    LIPIcs, Volume 277, GIScience 2023, Complete Volum

    EURAU18 Alicante: Retroactive Research: Congress Proceedings

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    An interdisciplinary research of architecture is something that society demands from our profession. Furthermore, in many countries that are currently immersed in a recessive economic process, it is the only possible solution. In that context, it is urgent to clarify the scope of our projects: Those whose ultimate goal consists of going beyond the limits of other disciplines through the application of architecture. Starting with Architecture’s capacity to learn from other disciplines and to follow their guidelines and techniques, we will build and offer new specific tools. With these new tools, our research will provide the opportunity to challenge and expand the boundaries of those original disciplines. Traditionally, architecture supported itself by various branches of knowledge to advance its proposals: Economic Changes Social organizations Environmental Crisis and Natural Catastrophes Structural Knowledge Artistic Trends New Materials Technological Advances Political positions and Conflicts. While the resulting architectures are excellent examples of applying these areas of knowledge, our interest lies in the reverse process: how the discipline of architecture can cause changes in others. It is an applied research that extends its scope to a prior discourse that originated in the past. That is to say, becomes a Retroactive Research. In the end, the architectural project is an effective document that not only establishes a program but also defines the author as an entrepreneur, understanding this quality as a position that opens the door to different types of practices that architects can exercise: from running a professional architecture office, to teach, to do interior and furniture design, to write, to design digital scenarios, to work in social associations, to collaborate with research centres

    Safety and Reliability - Safe Societies in a Changing World

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    The contributions cover a wide range of methodologies and application areas for safety and reliability that contribute to safe societies in a changing world. These methodologies and applications include: - foundations of risk and reliability assessment and management - mathematical methods in reliability and safety - risk assessment - risk management - system reliability - uncertainty analysis - digitalization and big data - prognostics and system health management - occupational safety - accident and incident modeling - maintenance modeling and applications - simulation for safety and reliability analysis - dynamic risk and barrier management - organizational factors and safety culture - human factors and human reliability - resilience engineering - structural reliability - natural hazards - security - economic analysis in risk managemen

    12th International Conference on Geographic Information Science: GIScience 2023, September 12–15, 2023, Leeds, UK

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    No abstract available

    Applied Ecology and Environmental Research 2021

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