<p>Currently, our world is getting more and more connected: information flows are everywhere at anytime. We are only at the beginning of the communication era. However, few want to know how those data are delivered as long as they are well delivered. Which paths they take, using optical fibres or regular copper cables, such questions do not matter for end-customers.</p><p>As a part of a telecommunication company, these questions do really matter. As networks become increasingly complex, it is significant to keep them under control and make them reliable to deliver high-quality services to users.</p><p>One of our main problems is how to get a representation of this network. More precisely how to get a relevant image of elements that compose this huge web and what points are significant in order to increase the quality of offered services. This thesis will try to answer these questions.</p>

Currently, our world is getting more and more connected: information flows are everywhere at anytime. We are only at the beginning of the communication era. However, few want to know how those data are delivered as long as they are well delivered. Which paths they take, using optical fibres or regular copper cables, such questions do not matter for end-customers. As a part of a telecommunication company, these questions do really matter. As networks become increasingly complex, it is significant to keep them under control and make them reliable to deliver high-quality services to users. One of our main problems is how to get a representation of this network. More precisely how to get a relevant image of elements that compose this huge web and what points are significant in order to increase the quality of offered services. This thesis will try to answer these questions.