# A Mathematical Framework for Active Steganalysis by Chandramouli PDF

By Chandramouli

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Extra resources for A Mathematical Framework for Active Steganalysis

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For example, the Florida DoT uses Riemann sums to determine the area of irregular plots of land, though it does not call the sums that. After the talk I asked the speaker what mathematical preparation the DoT expects in its new hires. The answer was, none at all. The DoT has determined that it is best for all concerned to assume that the background of its employees includes nothing beyond elementary arithmetic. What employees need, they can learn on the job. There seems to be abroad in the land the delusion that skill in algebra is necessary in the world of work and in everyday life.

More recently, Stefan Hutzler of Trinity College Dublin, along with Gary Delaney and Tomaso Aste of the University of Canberra, studied the ­effect of bubbles with different shapes in a random Apollonian packing. They found, for example, that squares become much more efficient packers than circles if they are allowed to rotate as they grow, but surprisingly, triangles become only slightly more efficient. As far as I know, all of these results are begging for a theoretical explanation. For mathematicians, however, the classical, deterministic Apollonian gasket still offers more than enough challenging problems.

New York: Basic Books, 2010. indb 30 8/20/2011 2:23:02 PM What Is Mathematics For? ” but the shorter one is more attention-getting and allows me more generality. My answer will become apparent soon, as will my answer to the subquestion of why the public supports mathematics education as much as it does. So that there is no confusion, let me say that by “mathematics” I mean algebra, trigonometry, calculus, linear algebra, and so on: all those subjects beyond arithmetic. There is no question about what arithmetic is for or why it is supported.