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In this work a model is engineered to depict topic relationships as graphs between detected topics of different time windows. By varying and shifting the time span of consideration the relationships between topics can be mapped with a variable complexity including the topic frequencies. Topic life cycles as well as changes in thematic relationships and their evolution become perceptible. Topics found can be matched in structure as well as their temporal progression to existing events.
Themen-Frequenz --- document streams --- Themen-Graphen --- Dokumentenstrom --- topic-graph --- text mining --- Text Mining --- topic-frequency
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"This book introduces core natural language processing (NLP) technologies to non-experts in an easily accessible way, as a series of building blocks that lead the user to understand key technologies, why they are required, and how to integrate them into Semantic Web applications. Natural language processing and Semantic Web technologies have different, but complementary roles in data management. Combining these two technologies enables structured and unstructured data to merge seamlessly. Semantic Web technologies aim to convert unstructured data to meaningful representations, which benefit enormously from the use of NLP technologies, thereby enabling applications such as connecting text to Linked Open Data, connecting texts to each other, semantic searching, information visualization, and modeling of user behavior in online networks. The first half of this book describes the basic NLP processing tools: tokenization, part-of speech tagging, and morphological analysis, in addition to the main tools required for an information extraction system (named entity recognition and relation extraction) which build on these components. The second half of the book explains how Semantic Web and NLP technologies can enhance each other, for example via semantic annotation, ontology linking, and population. These chapters also discuss sentiment analysis, a key component in making sense of textual data, and the difficulties of performing NLP on social media, as well as some proposed solutions. The book finishes by investigating some applications of these tools, focusing on semantic search and visualization, modeling user behavior, and an outlook on the future."--
Data Mining. --- Mustererkennung. --- Natural language processing (Computer science). --- Semantic Web. --- Text Mining. --- Wissenserwerb. --- Wissensextraktion.
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Text mining applications have experienced tremendous advances because of web 2.0 and social networking applications. Recent advances in hardware and software technology have lead to a number of unique scenarios where text mining algorithms are learned. Mining Text Data introduces an important niche in the text analytics field, and is an edited volume contributed by leading international researchers and practitioners focused on social networks & data mining. This book contains a wide swath in topics across social networks & data mining. Each chapter contains a comprehensive survey including the key research content on the topic, and the future directions of research in the field. There is a special focus on Text Embedded with Heterogeneous and Multimedia Data which makes the mining process much more challenging. A number of methods have been designed such as transfer learning and cross-lingual mining for such cases. Mining Text Data simplifies the content, so that advanced-level students, practitioners and researchers in computer science can benefit from this book. Academic and corporate libraries, as well as ACM, IEEE, and Management Science focused on information security, electronic commerce, databases, data mining, machine learning, and statistics are the primary buyers for this reference book.
Computer architecture. Operating systems --- Information systems --- Computer. Automation --- text mining --- multimedia --- database management --- computernetwerken
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Computer architecture. Operating systems --- Information systems --- Computer. Automation --- text mining --- multimedia --- database management --- computernetwerken
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Gregor Wiedemann evaluates text mining applications for social science studies with respect to conceptual integration of consciously selected methods, systematic optimization of algorithms and workflows, and methodological reflections relating to empirical research. In an exemplary study, he introduces workflows to analyze a corpus of around 600,000 newspaper articles on the subject of “democratic demarcation” in Germany. He provides a valuable resource for innovative measures to social scientists and computer scientists in the field of applied natural language processing. Contents • Qualitative Data Analysis in a Digital World • Computer-Assisted Text Analysis in the Social Sciences • Integrating Text Mining Applications for Complex Analysis • Democratic Demarcation in Germany • V-TM – A Methodological Framework for Social Sciences • Integrating Qualitative and Computational Text Analysis Target Groups • Researchers and students in the fields of social sciences, digital humanities and communication science, scientists interested in innovative text analysis methods, computer scientists in interdisciplinary projects or research fields working with large amounts of textual data The Author Gregor Wiedemann holds a doctoral degree from Leipzig University, Germany. He is the coordinator of the discipline-specific working groups in the CLARIN-D project, which develops a European virtual research infrastructure for digital language data analysis in the social sciences and humanities.
Science --- Social sciences (general) --- Sociology --- Political systems --- sociologie --- text mining --- onderzoeksmethoden --- sociale wetenschappen --- democratie --- gegevensanalyse --- methodologieën
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This book constitutes the refereed proceedings of the 4th Annual International Symposium on Information Management and Big Data, SIMBig 2017, held in Lima, Peru, in September 2017. The 10 revised full papers presented were carefully reviewed and selected from 71 submissions. The papers address issues such as Data Science, Big Data, Data Mining, Natural Language Processing, Text Mining, Information Retrieval, Machine Learning, Semantic Web, Ontologies, Web Mining, Knowledge Representation and Linked Open Data, Social Web and Web Science, Information Visualization.
Information systems --- ICT (informatie- en communicatietechnieken) --- big data --- machine learning --- text mining --- informatiesystemen --- gegevensanalyse
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Long description: Lernen Sie grundlegende Java-Techniken, die für die Auswertung von Biodaten benötigt werden Eine Einführung in Java für Biowissenschaftler mit Programmiererfahrung Bietet biologische Hintergrundinformationen, soweit sie zum Verständnis des Problems hilfreich sind Mit zahlreichen Übungsaufgaben und Codebeispielen Diese Einführung in die Bioinformatik mit Java vermittelt Ihnen grundlegende Java-Techniken, die für die Analyse von Biodaten benötigt werden. Das Buch richtet sich an Studenten, Wissenschaftler und Praktiker in den Life Sciences, die Grundkenntnisse einer höheren Programmiersprache mitbringen. Es bietet Ihnen einen schnellen Einstieg in Kernthemen der Programmierung in den Life Sciences: - Data und Text Mining, - Datenverarbeitung, - Sequenz-, Bild- und Netzwerkanalysen - Strukturbiologie Genutzt werden dabei verbreitete Open-Source-Bibliotheken wie Maven, Eclipse oder Git. Beispiele aus der Bioinformatik zeigen Ihnen alle notwendigen Schritte, um in kurzer Zeit Ergebnisse mit Java zu erzielen. Biologische Zusammenhänge werden immer dann beschrieben, wenn sie zum Verständnis des Problems hilfreich sind. Biographical note: Jens Dörpinghaus hat Mathematik und Informatik studiert. Nach einigen Jahren am Deutschen Zentrum fürneurodegenerative Erkrankungen arbeitet er seit einiger Zeit als Postdoc am Fraunhofer-Institut für Algorithmen und Wissenschaftliches Rechnen SCAI (Sankt Augustin) in der Abteilung Bioinformatik. Er unterrichtet an der Universität Bonn im Studiengang Life Science Informatics.Sebastian Schaaf hat Biologie und Bioinformatik studiert und anschließend im Fach Bioinformatik promoviert. Nach einigen Jahren an der LMU München und dem dortigen Standort des Deutschen Krebsforschungszentrums arbeitet er ebenfalls als Postdoc am Fraunhofer-Institut für Algorithmen und Wissenschaftliches Rechnen SCAI in der Abteilung Bioinformatik, zunehmend in medizininformatisch geprägten Projekten. Auch er unterrichtet an der Universität Bonn im Studiengang Life Science Informatics.Vera Weil hat Mathematik und Informatik studiert und anschließend im Fach Informatik promoviert. Sie hat zwei Jahre als Postdoc an der RWTH Aachen am Institut für Management Science gearbeitet. Seit einiger Zeit lehrt sie an der Universität zu Köln im Fach Informatik und unterrichtet dort im Wesentlichen das Programmieren mit Java.
Datenanalyse --- Netzwerkanalyse --- Biologie --- Bildanalyse --- Programmierung --- Informatik --- Naturwissenschaften --- Sequenzanalyse --- Datenauswertung --- Data Mining --- Text Mining --- Biodata-Mining
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This project-dissertation has been realized for Prayon which is a worldwide leader in phosphate chemistry. The objective of the project was to provide Prayon with the tools to automatically extract strategic information from the Internet and analyze it for the purpose of Competitive Intelligence. We focused on six competitors to develop an application that automatically extract strategic information from different websites and process it to deliver to Strategic Marketing and Sales Departments’ people only relevant information. The application also enables to display to the users a visualization of the information thanks to some word clouds. The application has been developed in three modules, each performing a specific part of the overall methodology. In the first module, we automated the extraction of data from websites. Then, in the second module, we created a database to store the data. Finally, in the third module, we processed the data and transform it into relevant information for Prayon.
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Digital methods such as text and data mining are utilised more and more frequently to gather knowledge, thereby offering the ability to recognise patterns in large data sets as well as being the basis of machine learning. This work examines this digital method from a copyright perspective, evaluating the significance and controlling effect of copyright barriers, the special interests involved in scientific copyright law and elements of interdisciplinary knowledge. This comprehensive analysis structures this complex legal matter, identifies deficits and suggests viable solutions. One focus lies on the long-term accessibility of the research data that are generated within this process. Immer häufiger werden digitale Methoden wie das Text- und Data-Mining zur Erkenntnisfindung eingesetzt, das die Möglichkeit bietet, Muster in großen Datensätzen zu erkennen und zugleich Grundlage des maschinellen Lernens ist. Die Arbeit betrachtet diese Methode aus urheberrechtlicher Perspektive und berücksichtigt dabei die Bedeutung und Steuerungswirkung urheberrechtlicher Schranken, die besondere Interessenlage im Wissenschaftsurheberrecht sowie interdisziplinäre Erkenntnisse. In der umfassenden Analyse wird die komplexe Rechtsmaterie strukturiert, es werden Defizite aufgezeigt und konkrete Lösungsvorschläge unterbreitet. Ein Schwerpunkt liegt dabei auf der langfristigen Zugänglichkeit der erzeugten Forschungsdaten.
LNRC --- Bibliotheken, Data Mining, Forschungsdaten, Innovation, Kulturerbe-Einrichtung, Nachnutzung, Schranke, Text Mining, Wissenschaft, Zugang, Urheberrecht, Forschung, Text- und Data-Mining --- Bibliotheken, Data Mining, Forschungsdaten, Innovation, Kulturerbe-Einrichtung, Nachnutzung, Schranke, Text Mining, Wissenschaft, Zugang, Urheberrecht, Forschung, Text- und Data-Mining
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An explosion of new techniques with vastly improved visualization and sensitivity is leading a veritable revolution in modern neuroanatomy. Basic questions related to cell types, input localization, and connectivity are being re-visited and tackled with significantly more accurate and higher resolution experimental approaches. A major goal of this e-Book is thus to highlight in one place the impressive range of available techniques, even as these are fast becoming routine. This is not meant as a technical review, however, but rather will project the technical explosion as indicative of a field now in a vibrant state of renewal. Thus, contributions will be mainly research articles using the newer techniques. A second goal is to showcase what has become the conspicuous interdisciplinary reach of the field: neuroanatomical standards and the close association of structure-function and underlying circuitry mechanisms are increasingly relevant to investigations in development, physiology, and disease. Another feature of this Research Topic is that it includes a breadth of cross-species contributions from investigators working with rodent, nonhuman primate, and human brains. This is important since most of our current knowledge of brain structure has been obtained from experimental animals. However, recent technical advances, coupled with researcher willingness to use the human tissue available, will undoubtedly lead to major advances in the near future regarding human brain mapping and connectomes. Thus, of particular interest will be the methods that can help to define general wiring principles in the brain, both structural and functional. Overall, the state of the field is: exciting.
Human neuroanatomy --- light-sheet imaging --- two-photon tomography --- FIB/SEM --- fMOST --- synaptic weights --- text-mining --- Polarized light microscopy --- viral vectors --- Human neuroanatomy --- light-sheet imaging --- two-photon tomography --- FIB/SEM --- fMOST --- synaptic weights --- text-mining --- Polarized light microscopy --- viral vectors
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