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What is Meta-Data

Encyclopedia of Information Science and Technology, Fourth Edition
Data providing information about a certain item’s content. For example, a tweet may include meta-data specifying GPS coordinates, or information about when it was sent, by who, and so on, which can be analyzed to extract meaningful information.
Published in Chapter:
Twitter Data Mining for Situational Awareness
Marco Vernier (University of Udine, Italy), Manuela Farinosi (University of Udine, Italy), and Gian Luca Foresti (Department of Mathematics and Computer Science, University of Udine, Italy)
Copyright: © 2018 |Pages: 11
DOI: 10.4018/978-1-5225-2255-3.ch179
The most recent catastrophic events, from the 2010 Haiti earthquake to the devastating 2013 Colorado floods, have shown a strong adoption of social media platforms by ordinary people. The data and meta-data produced by the users during and after the extra-ordinary situations could have enormous potentialities if integrated with the traditional systems for emergency management and used for hyperlocal situational awareness. The great majority of the current literature is focused on Twitter for several reasons strictly linked to the architectures and practices of use of the platform itself. It is possible to classify the existing systems based on the analysis of Twitter data at least in three different categories: 1) semantic systems; 2) meta-data systems; and 3) smart self-learning systems. In this contribution, a review of the most significant and important tools used to analyze Twitter data will be presented and an innovative and smart solution will be proposed for future development.
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A Framework for Adaptive Learning Points
Used to describe data using a standardized and well-structured format.
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Social Semantic Bookmarking with SOBOLEO
Meta data is data about data; extra information associated with some data, for example a document or website. Common uses of meta-data are creation dates and access right associated with files or information about the tool that was used to create a particular file. Meta-Data is often created at the same time as the data it describes, but can also be created at some later time. Meta-Data can be both embedded in the data it describes or external to it.
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Optimized and Distributed Variant Logic for Model-Driven Applications
Computing information that is held as a description of stored data.
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