BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250718T005805EDT-7102o5aGb0@132.216.98.100 DTSTAMP:20250718T045805Z DESCRIPTION:Title: Exploration of a dense SBM graphon by a random walk\n\nA bstract: We are interested in recovering information on a stochastic block model from the subgraph discovered by an exploring random walk. Stochasti c block models correspond to populations structured into a finite number o f types\, where two individuals are connected by an edge independently fro m the other pairs and with a probability depending on their types. We cons ider here the dense case where the random network can be approximated by a graphon. The random walk is attracted to hubs and we discuss how to de-bi as the graph obtained by the random walk exploration. This problem is moti vated from the study of chain-referral surveys where each interviewee prov ides information on her/his contacts in the social network. This is a join t work with VO Thi Phuong Thuy.\n\n \n\nLocation: UQAM : salle PK-5115 du 201 Av. Président-Kennedy\, Montréal\, QC\, H2X 3Y7\n DTSTART:20221020T193000Z DTEND:20221020T203000Z SUMMARY:Chi Tran (Université Gustav Eiffel) URL:/mathstat/channels/event/chi-tran-universite-gusta v-eiffel-342830 END:VEVENT END:VCALENDAR