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Thursday, November 12, 2020 10:00 am - 10:00 am EST (GMT -05:00)

PhD Seminar • Algorithms and Complexity — A Local Search Framework for Experimental Design

Please note: This PhD seminar will be given online.

Hong Zhou, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Lap Chi Lau

In this talk, we will present a local search framework to design and analyze both combinatorial algorithms and rounding algorithms for experimental design problems. This framework provides a unifying approach to match and improve all known results in D/A/E-design and to obtain new results in previously unknown settings. 

Wednesday, November 18, 2020 12:00 pm - 12:00 pm EST (GMT -05:00)

PhD Seminar • Data Systems — Studying Query Abandonment Behavior in Web Search

Please note: This PhD seminar will be given online.

Mustafa Abualsaud, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Mark D. Smucker

When search results fail to satisfy users’ information needs, users often reformulate their search query in the hopes of receiving better results. In many cases, users abandon their queries without clicking on any search results. 

Tuesday, December 1, 2020 9:00 am - 9:00 am EST (GMT -05:00)

PhD Seminar • Symbolic Computation — Solving Structured Determinantal Systems using Homotopy Methods with an Application to Computing Isolated Critical Points for Invariant Systems

Please note: This PhD seminar will be given online.

Thi Xuan Vu, PhD candidate
David R. Cheriton School of Computer Science

Supervisors: Professors George Labahn, Éric Schost, Mohab Safey El Din

Monday, December 7, 2020 10:00 am - 10:00 am EST (GMT -05:00)

Waterloo Cybersecurity and Privacy Institute • UC Non-Interactive, Proactive, Threshold ECDSA with Identifiable Aborts

Please note: This Waterloo CPI seminar will be giving online.

Nikolaos Makriyannis, Cryptography researcher
Fireblocks

Building on the Gennaro & Goldfeder and Lindell & Nof protocols (CCS '18), we present two threshold ECDSA protocols, for any number of signatories and any threshold, that improve as follows over the state of the art: 

Monday, December 7, 2020 2:00 pm - 2:00 pm EST (GMT -05:00)

PhD Seminar • Computer Graphics | Scientific Computing — Divergence-Free and Boundary-Respecting Velocity Interpolation Using Stream Functions

Please note: This PhD seminar will be given online.

Jumyung “JC” Chang, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Christopher Batty