Until recently most people did not know what metadata was. It was an obscure term known especially those in the fields of technology and academic. But since the revelation that the National Security Agency has been collecting metadata, now anyone who saw the news knows the term refers to data about data.
For example metadata to a cell phone provider includes the date and duration of a phone call. For a mail provider metadata includes the e-mail address of the sender, recipient and the date and time of e-mail -. Essentially everything except what the message actually includes
For Professor of Media Arts and Sciences at the MIT Media Lab, Cesar Hidalgo, metadata is much more than a technical or political problem. For him, it is an emotional issue, metadata is a knowledge cloud on your behavior, that he thinks, when faced with can literally change your life.
To help the masses see their own metadata, or at least some of it, Hidalgo and a group of graduate students at MIT have launched an online project called The program asks for Gmail users their address and password "immersion."; . Then it scans all e-mail in their accounts and uses the metadata to create a portrait of their personal network
metadata Jacob Goldstein of NPR or "life" Gmail looks like this:
circles and network diagram lines highlight the 100 people you have contacted the most and shows how they are connected to you and others in your mailbox. Unlike Google or NSA, however, the "Immersion" project instant removal option: remove your name and deletes metadata. The project allows you to be your own Big Brother in a way; it is fun and a little scary. To participate in the MIT Media Lab project Immersion, visit https://immersion.media.mit.edu/.
Source: What metadata told you - Boston.com
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