4. The connectivity matrix defined.

Our next step is to obtain the raw data from Alta Vista for the connectivity matrix, as described in our first report, Webometry #1. In this N by N matrix, we record the number C(i, j) of pages (that is, HTML documents) of the i-th node which contain one or more links to any document of the j-th node. This is the definition of the connectivity number. Assuming that the i-th node is uniquely identified by a single URL fragment U(i) for each i from 1 to N, the connectivity number is returned by Alta Vista to the advanced (Report Count Only) query: host:U(i) AND link:U(j).

|| Home ||
|| 1. Introduction || 2. Connectionism || 3.An exemplary sub-web || 4. The connectivity matrix defined || 5. An exemplary connectivity matrix || 6. The synergy matrix defined || 7. An exemplary synergy matrix || 8. An exemplary synergy image || 9. Conclusion || Acknowledgments
Bibliography ||