School of Computer Science Colloquium Announcement of Dr. David E. Narvaez:"pprsearch: A Tool for Finding πPR proofs"

Friday, October 28, 2022 - 11:00 to 12:00

SCHOOL OF COMPUTER SCIENCE – Colloquium Series

The School of Computer Science at the University of Windsor is pleased to present… 

Colloquium Presentation by Dr. David E. Narvaez


Picture of Dr. David E. Narvaez, SCS colloquium presenter, October 2022
 
Date: Friday October 28, 2022
Time: 11:00am – 12:00pm 
Location: Erie Hall, Room 3123
Reminder: Two-part attendance required: Part I (Scan the QR code, fill in online form) and Part II (sign in sheet). *Make sure you are in the room at least 5-10 minutes BEFORE the presentation starts – once the presentation has begun, latecomers will not be admitted.

Abstract:


The πPR proof system for unsatisfiable Boolean formulas is an improvement over the PR proof system that allows for specifying not only a
witness assignment but also a permutation of variables that, together with the witness, justifies the redundancy of a clause. The pprsearch tool allows for finding such a permutation based on a graph representation of the CNF formula.


Keywords:  SAT, Proof Systems, Graph Isomorphism


Biography:


I am postdoc working under the supervision of Lane Hemaspaandra in the intersection of computational complexity and computational social choice. I finished my PhD at RIT under the supervision of Edith Hemaspaandra and Stanisław P. Radziszowski on the topic of constraint satisfaction techniques for combinatorial problems. I did my BS in Computer Systems Engineering at UTP (I am, as a matter of fact, from Panama) and my MS in Computer Science at RIT.

Vector Institute in Artificial Intelligence, artificial intelligence approved topic logo

 

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