Seminar

Please note: This master’s thesis presentation will take place in DC 2585 and online.

Gustavo Sutter Pessurno de Carvalho, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Pascal Poupart

Wednesday, November 29, 2023 12:00 pm - 1:00 pm EST (GMT -05:00)

Seminar • Algorithms and Complexity • New Codes on High Dimensional Expanders

Please note: This seminar will take place in M3 4206 and online.

Rachel Yun Zhang, PhD student
CSAIL, Massachusetts Institute of Technology

A code, which is a set of strings called codewords, is locally testable if one can test whether a given word is close to a codeword by reading only a few bits. Locally testable codes have been studied since the 1990s as key ingredients in the construction of probabilistically checkable proofs.

Monday, November 27, 2023 12:00 pm - 1:00 pm EST (GMT -05:00)

Seminar • Algorithms and Complexity • Top-Down Lower Bounds for Depth-Four Circuits

Please note: This seminar will take place in MC 5501 and online.

Mika Göös, Assistant Professor
Theory Group, École polytechnique fédérale de Lausanne

We present a top-down lower-bound method for depth-4 Boolean circuits. In particular, we give a new proof of the well-known result that the parity function requires depth-4 circuits of size exponential in n^{1/3}. Our proof is an application of robust sunflowers and block unpredictability.

Joint with Artur Riazanov, Anastasia Sofronova, and Dmitry Sokolov.