Gitlab CSE Unil

help.html 2.42 KB
Newer Older
M. Chardon's avatar
M. Chardon committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
<div class="modal-dialog">

    <!-- Modal content-->
    <div class="modal-content">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal">&times;</button>
            <h4 class="modal-title"><span class="i18n" data-lang="help"></span></h4>
        </div>
        <div class="modal-body">

            <p>
                Randomness is a mathematical notion that is used in many
                modern life area. It is use in the form of a random sequence
                in geolocalisation system, automatic gambling games, cryptology
                and others. The mathematical definition of a ransom sequence
                is still going under discussions, but certain properties
                have been demonstrated and an agreement was found around three approaches: 
            </p>
            <ul>
                <li>The frequency, measure-theoretic approach (Martin-Löf, 1966) (No random sequence should have exceptional regularity or be effectively testable).</li>
                <li>The complexity, compressibility approach (Chaitin 1975) (A random sequence should be incompressible)</li>
                <li>The predictability approach (Schnorr 1971) (A random sequence should be unpredictable)</li>
            </ul>
            <p>
                From there, no random sequence can be generated from an 
                algorithm. If so, the sequence will be considered as pseudorandom
                and its level of randomness will depend from the context.
            </p>
            <p>
                The sources of randomness can be separated into three
                categories: unpredictable (dices, random sorting,…),
                physical (radioactivity, electromagnetism,…), computational
                (mix of physic and algorithms).
            </p>
            <p>
                Another potential way is the human brain. Human decision
                have been showed to be influenced by bias, but few studies
                have been made on the human capacity to produce a random
                sequence. To do so, the experience will ask the user
                to write a sequence of numbers and to play with it,
                the aim being to fool the computer.
            </p>

        </div>
        <div class="modal-footer">
            <button type="button" class="btn btn-default" data-dismiss="modal">Ok</button>
        </div> 
    </div>
</div>