Seminar - stochastic systems meet birds on geodesics

School of Mathematics and Statistics Research Seminar

Speaker: Budhi Surya and Stephen Marsland
Time: Thursday 2nd April 2026 at 11:00 AM - 12:00 PM
Location: Cotton Club, Cotton 350
Groups: "Mathematics" "Statistics and Operations Research"

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Abstract

Speaker #1: Budhi Surya

Title: Optimal filtering of nonlinear stochastic systems: Exact tractable solutions and stability properties

Abstract: In this talk I will discuss a novel statistical approach in developing the exact and tractable solutions of optimal filtering in nonlinear stochastic systems. Stability properties of the optimal nonlinear filter are derived. Higher order implicit Runge-Kutta method is proposed for numerical solutions of the nonlinear filtering equations. Numerical examples are discussed to verify the accuracy of theoretical findings.

Speaker #2: Stephen Marsland

Title: Why are birdcalls like elastic bands?

Abstract: When I first started to think about how to classify the species of birds from the calls I used my favourite tool — geodesics on diffeomorphism groups. I will explain why this wasn't as insane as it sounds, and consider a few other interesting mathematical questions in bioacoustic analysis.

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