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Anonymity. Anonymity is derived from the Greek word a????µ?a, meaning "without
a name" or "namelessness". ... Anonymity is not an absolute. ...
Anonymity on the Internet Equals Unidentified Criminals. Anonymous ... 1999).
Until this can be achieved, anonymity should not be allowed. ...
Achieving Anonymity via Clustering. Achieving Anonymity via Clustering Gagan
Aggarwal1 Google Inc. Mountain View, CA 94043 gagan@cs ...
New York social anonymity. 9/16/2006 Governing the City Assignment # 1 ?
by Guy Bajour For a person coming to a big city such as ...
... Many problems have occurred from donor anonymity. ... The United States is already
behind other counties who have banned donor anonymity. ...
Submitted by johnathandoe on April 27, 2008
Category: Miscellaneous
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Anonymity is derived from the Greek word ανωνυμία, meaning "without a name" or "namelessness". In colloquial use, the term typically refers to a person, and often means that the personal identity, or personally identifiable information of that person is not known.
More strictly, and in reference to an arbitrary element (e.g. a human, an object, a computer), within a well-defined set (called the "anonymity set"), "anonymity" of that element refers to the property of that element of not being identifiable within this set. If it is not identifiable, then the element is said to be "anonymous".
An example: Suppose that only Alice, Bob, and Carol have the keys to a bank safe and that, one day, the contents of the safe are missing (without the lock being violated). Without any additional information, we do not know for sure whether it was Alice, Bob or Carol that opened the safe; the perpetrator remains anonymous. In particular, each of the elements in {Alice, Bob, Carol} has a 1/3 chance of being the perpetrator. However, as long as none of them has been identified as being the perpetrator with 100% certainty, we can say that the perpetrator remains anonymous.
Anonymity is not an absolute. That is, the degree of anonymity one enjoys may vary. In the above example, if Carol has an ironclad alibi at the time of the perpetration, then we may deduce that it must have been either Alice or Bob who opened the safe. That is, the probability of the elements {Alice, Bob, Carol} of being the perpetrator is now 1/2, 1/2, and 0 respectively. This clearly amounts to a reduction of the perpetrator's anonymity (i.e. although the perpetrator still remains anonymous, it is now more likely than before that (s)he is either Alice or Bob).
The term "anonymous message" typically refers to message (which is, for example, transmitted over some form of a network) that does not carry any information about its sender and its...
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