Wiegmann, S.: Hättest du die Titanic überlebt? : Eine kurze Einführung in das Data Mining mit freier Software (2023)
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- Abstract
- Am 10. April 1912 ging Elisabeth Walton Allen an Bord der "Titanic", um ihr Hab und Gut nach England zu holen. Eines Nachts wurde sie von ihrer aufgelösten Tante geweckt, deren Kajüte unter Wasser stand. Wie steht es um Elisabeths Chancen und hätte man selbst das Unglück damals überlebt? Das Titanic-Orakel ist eine algorithmusbasierte App, die entsprechende Prognosen aufstellt und im Rahmen des Kurses "Data Science" am Department Information der HAW Hamburg entstanden ist. Dieser Beitrag zeigt Schritt für Schritt, wie die App unter Verwendung freier Software entwickelt wurde. Code und Daten werden zur Nachnutzung bereitgestellt.
- Date
- 28. 1.2022 11:05:29
Borgman, C.L.; Wofford, M.F.; Golshan, M.S.; Darch, P.T.: Collaborative qualitative research at scale : reflections on 20 years of acquiring global data and making data global (2021)
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- Abstract
- A 5-year project to study scientific data uses in geography, starting in 1999, evolved into 20 years of research on data practices in sensor networks, environmental sciences, biology, seismology, undersea science, biomedicine, astronomy, and other fields. By emulating the "team science" approaches of the scientists studied, the UCLA Center for Knowledge Infrastructures accumulated a comprehensive collection of qualitative data about how scientists generate, manage, use, and reuse data across domains. Building upon Paul N. Edwards's model of "making global data"-collecting signals via consistent methods, technologies, and policies-to "make data global"-comparing and integrating those data, the research team has managed and exploited these data as a collaborative resource. This article reflects on the social, technical, organizational, economic, and policy challenges the team has encountered in creating new knowledge from data old and new. We reflect on continuity over generations of students and staff, transitions between grants, transfer of legacy data between software tools, research methods, and the role of professional data managers in the social sciences.
Mandl, T.: Text Mining und Data Mining (2023)
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- Abstract
- Text und Data Mining sind ein Bündel von Technologien, die eng mit den Themenfeldern Statistik, Maschinelles Lernen und dem Erkennen von Mustern verbunden sind. Die üblichen Definitionen beziehen eine Vielzahl von verschiedenen Verfahren mit ein, ohne eine exakte Grenze zu ziehen. Data Mining bezeichnet die Suche nach Mustern, Regelmäßigkeiten oder Auffälligkeiten in stark strukturierten und vor allem numerischen Daten. "Any algorithm that enumerates patterns from, or fits models to, data is a data mining algorithm." Numerische Daten und Datenbankinhalte werden als strukturierte Daten bezeichnet. Dagegen gelten Textdokumente in natürlicher Sprache als unstrukturierte Daten.
- Source
- Grundlagen der Informationswissenschaft. Hrsg.: Rainer Kuhlen, Dirk Lewandowski, Wolfgang Semar und Christa Womser-Hacker. 7., völlig neu gefasste Ausg
