IPAB Workshop-20/05/2021

 

 

Title: Taming Timely Inverses Abstract: Last year, at the IPAB seminar, I spoke about the importance of timely (rapid) approximations of physical simulations. Currently, I am excited about developing rapid approximations for inverse problems involving physical simulation. Despite troves of methods for solving inverse problems, sparingly few consider timeliness as a measure of error. In many real-time applications, obtaining an accurate or precise answer is only useful if it can be estimated within a narrow temporal window. Conversely, rapid estimates are indeed less useful if they are not accompanied by analyses of popular error criteria such as accuracy and precision. In my talk this week, I will present a couple of recent works [1,2] that are early steps in this direction. In addition, I will also briefly discuss other recent work [3,4,5]. [1] Q-NET: A Network for Low-Dimensional Integrals of Neural Proxies     Kartic Subr     https://arxiv.org/pdf/2006.14396 [2] IV-Posterior: Inverse Value Estimation for Interpretable Policy Certificates     Tatiana Lopez-Guevara, Michael Burke, Nicholas K. Taylor, Kartic Subr     https://arxiv.org/pdf/2012.01925 [3] Action sequencing using visual permutations     Michael Burke, Kartic Subr, Subramanian Ramamoorthy     https://arxiv.org/pdf/2008.01156 [4] Jittering Samples using a kd-Tree Stratification     Alexandros D. Keros, Divakaran Divakaran, Kartic Subr     https://arxiv.org/pdf/2002.07002 [5] On Improved Training of CNNs for Acoustic Localisation     Elizabeth Vargas, James Hopgood, Keith Brown, Kartic Subr     https://homepages.inf.ed.ac.uk/ksubr/Files/Papers/TASLP21.pdf