“How Neural Networks Simulate and Learn Algorithms”, Kimon Fountoulakis, Associate Professor, David R. Cheriton School of Computer Science, University of Waterloo, Canada – Τμήμα Μηχανικών Η/Υ και Πληροφορικής

Την ερχόμενη Παρασκευή 23/5 θα έχουμε τη μεγάλη χαρά να φιλοξενήσουμε “εξ αποστάσεως” ως ομιλητή στα πλαίσια των εκδηλώσεων “Σεμινάριο CEID & Social Hour” και των ΔΠΜΣ ΥΔΑ, ΣΜΗΝ τον δρ. Κίμωνα Φουντουλάκη, Associate Professor, David R. Cheriton School of Computer Science, University of Waterloo. Όπως πάντα, θα ακολουθήσει συζήτηση και θα προσφερθεί καφές.

Please note the following interesting and highly topical talk that will be presented in the context of the weekly event “CEID Seminar & Social Hour” organized by CEID, and the MS programs DDCDM, SMIN

Τίτλος:  How Neural Networks Simulate and Learn Algorithms

Ομιλητής: Kimon Fountoulakis (εξ αποστάσεως), Associate Professor, David R. Cheriton School of Computer Science, University of Waterloo, Canada

Ημερομηνία-χώρος: Παρασκευή 23 Mαΐου,  3:15-5μμ, ΤΜΗΥΠ, αμφιθέατρο Γ

Abstract: Neural networks have recently demonstrated tremendous success in language, vision, and various reasoning tasks. However, they still perform poorly on tasks that require executing long algorithmic instructions, a form of reasoning known as algorithmic reasoning. This type of reasoning lies at the core of fundamental tasks like arithmetic and sorting, which are often used as testbeds for evaluating algorithmic execution in neural networks. In this talk, I will discuss, from a theoretical perspective, the ability of various architectures, such as feedforward networks, Transformers, and graph neural networks, to simulate and learn, through training, how to execute algorithms and general computer instructions. Finally, I will discuss their ensemble complexity, that is a lower bound on the number of training trials required for a neural network to learn to execute algorithms with zero error.

About the speaker: Kimon Fountoulakis is an Associate Professor in the David R. Cheriton School of Computer Science at the University of Waterloo and a member of its Waterloo.AI Institute and the Scientific Computation Group. Previously, he was a postdoctoral fellow and Principal Investigator at the University of California, Berkeley, in the Department of Statistics and the International Computer Science Institute. Kimon received his PhD from the School of Mathematics at the University of Edinburgh and his undergraduate degree from the Athens University of Economics and Business. In 2022, he spent his sabbatical as a Visiting Faculty Researcher at Google Waterloo and New York. Kimon directs the Optimization, Analytics and Learning (OpAL) Lab, focusing on neural networks and optimization. Kimon regularly publishes in venues such as NeurIPS and ICML, and serves as an Area Chair for both, as well as a Senior Program Committee member at the Annual AAAI Conference. His work has received an oral presentation (top 3% of submitted papers) at ICML 2023, and was selected for spotlight presentations (top 6%) at ICLR 2023 and ICML 2021.

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