4.1 Datasets

4. Results

4.1 Datasets

Multiple collections of resources with their links have been gathered from the World-Wide Web. Using a modified version of the Explore [Nierstrasz, 1995] Perl script, the following datasets have been constructed:

heiwww: the resources available on the Graduate Institute of International Studies World-Wide Web server.[15]
liawww: the resources available on the Artificial Intelligence Laboratory World-Wide Web server.[16]
iamwww: the resources available on the Institute of Computer Science and Applied Mathematics World-Wide Web server.[17]
isoe: the resources available on the School of Engineering of Oensingen World-Wide Web server.[18]
isbiel: the resources available on the School of Engineering of Biel/Bienne World-Wide Web server.[19]
tecfa: the resources available on the Technologies de Formation et Apprentissage World-Wide Web server.[20]
tecfamoo: the resources available on the Technologies de Formation et Apprentissage MOO.[21]
depth: the resources discovered through a limited depth-first search.[22]
breadth: the resources discovered through a limited breadth-first search.[23]
ch: the resources discovered through a limited breadth-first search[24] with priority given to unvisited World-Wide Web servers.
ops: the resources discovered through a breadth-first search[25] with a number of requests per World-Wide Web server restricted to one.
unine: the resources available on the various World-Wide Web servers of the University of Neuchâtel.[26]

The adjacency and distance matrices have then been built using an implementation of the Floyd's algorithm [Sedgewick, 1989].

Some statistical values for these datasets are presented in annex B. "Statistics of the datasets" on page 59.

[15] Starting at <URL:http://heiwww.unige.ch/>.

[16] Starting at <URL:http://liawww.epfl.ch/>.

[17] Starting at <URL:http://iamwww.unibe.ch/>.

[18] Starting at <URL:http://www.isoe.ch/>.

[19] Starting at <URL:http://www.isbiel.ch/>.

[20] Starting at <URL:http://tecfa.unige.ch/>.

[21] Starting at <URL:http://tecfamoo.unige.ch/>.

[22] Starting at <URL:http://heiwww.unige.ch/swizterland/>.

[23] Starting at <URL:http://heiwww.unige.ch/swizterland/>.

[24] Starting at <URL:http://heiwww.unige.ch/swizterland/>.

[25] Starting at <URL:http://heiwww.unige.ch/swizterland/>.

[26] Starting at <URL:http://www.unine.ch/>.

Cyberspace geography visualization - 15 October 1995

Luc Girardin, The Graduate Institute of International Studies