Abstract
How often do you not hear someone exclaiming “it’s a small world”, astonished at bumping into somebody he/she thought almost impossible to meet, or at discovering they have a mutual acquaintance. This ‘small world’ idea dates back ages, and has ever since found its way into our daily lives and even our popular culture; think for example of the movies1 and the song lyrics2. And it is not only an established expression in the English language: the Spanish compare the world to a handkerchief3, and the Namibians have an old, even more poetic proverb saying that it is only the mountains that never meet4. Despite their old age, these sayings are still remarkably up-to-date and widely applicable; not only in our everyday life, but also online.
Eh! madame, qui sait? reprit Athos. Il y a un proverbe populaire qui dit qu’il n’y a que les montagnes qui ne se rencontrent pas, et les proverbes populaires sont quelquefois d’une justesse incroyable. Vingt Ans apr`es, 1845. Alexandre Dumas
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© 2011 Atlantis Press
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Victor, P., Cornelis, C., de Cock, M. (2011). Trust Propagation. In: Trust Networks for Recommender Systems. Atlantis Computational Intelligence Systems, vol 4. Atlantis Press. https://doi.org/10.2991/978-94-91216-08-4_3
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DOI: https://doi.org/10.2991/978-94-91216-08-4_3
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