[Talks@IDSIA] PIDSIA Seminar by Lilith Mattei (13th of February)

*Title: Introducing probabilistic sentential decision diagrams and their credal extension *Abstract: Probabilistic sentential decision diagrams are a class of probabilistic graphical models natively embedding logical constraints within a “deep” layered structure with statistical parameters. They thence induce a joint probability distribution over the involved Boolean variables that sharply assigns probability zero to states inconsistent with the logical constraints. In this presentation, I will first introduce and motivate such probabilistic circuits. I will then present a set-valued generalisation of the probabilistic quantification in these models, that allows to replace the sharp specification of the local probabilities with linear constraints over them, In doing so, a (convex) set of joint probability mass functions, all consistent with the assigned logical constraints, is induced. *Speaker: Lilith Mattei graduated in pure mathematics at EPFL. After a period of teaching in high school, in 2018 she started working at IDSIA as a research assistant. She is currently a PhD student under the supervision of Alessandro Antonucci and Alessandro Facchini. Her research is in PGMs and logic. *Date: Thursday, 13th of February 2020, 12:00-13:00 *Location: Manno, Galleria 1, 2nd floor, room G1-201 *Doodle registration: Pizza (or alternative food) and drinks will be offered at the end of the talk. If you plan to attend the lunch, please register in a timely fashion (meaning at the latest at 9AM of the same day of the talk) at the following link so that we will have no shortage of food. https://doodle.com/poll/zkuyct5f9nq57y6i If by any chance, after registering for a Pizza at the link above, you know you will not be able to attend the lunch, please cancel your registration asap.