Search Results for author: Pashootan Vaezipoor

Found 9 papers, 5 papers with code

Learning Branching Heuristics for Propositional Model Counting

no code implementations7 Jul 2020 Pashootan Vaezipoor, Gil Lederman, Yuhuai Wu, Chris J. Maddison, Roger Grosse, Sanjit A. Seshia, Fahiem Bacchus

In addition to step count improvements, Neuro# can also achieve orders of magnitude wall-clock speedups over the vanilla solver on larger instances in some problem families, despite the runtime overhead of querying the model.

LTL2Action: Generalizing LTL Instructions for Multi-Task RL

1 code implementation13 Feb 2021 Pashootan Vaezipoor, Andrew Li, Rodrigo Toro Icarte, Sheila Mcilraith

We address the problem of teaching a deep reinforcement learning (RL) agent to follow instructions in multi-task environments.

Reinforcement Learning (RL)

Finding Backdoors to Integer Programs: A Monte Carlo Tree Search Framework

no code implementations16 Oct 2021 Elias B. Khalil, Pashootan Vaezipoor, Bistra Dilkina

In Mixed Integer Linear Programming (MIP), a (strong) backdoor is a "small" subset of an instance's integer variables with the following property: in a branch-and-bound procedure, the instance can be solved to global optimality by branching only on the variables in the backdoor.

Augment with Care: Contrastive Learning for Combinatorial Problems

no code implementations17 Feb 2022 Haonan Duan, Pashootan Vaezipoor, Max B. Paulus, Yangjun Ruan, Chris J. Maddison

While typical graph contrastive pre-training uses label-agnostic augmentations, our key insight is that many combinatorial problems have well-studied invariances, which allow for the design of label-preserving augmentations.

Contrastive Learning

Challenges to Solving Combinatorially Hard Long-Horizon Deep RL Tasks

1 code implementation3 Jun 2022 Andrew C. Li, Pashootan Vaezipoor, Rodrigo Toro Icarte, Sheila A. McIlraith

Deep reinforcement learning has shown promise in discrete domains requiring complex reasoning, including games such as Chess, Go, and Hanabi.

Learning to Follow Instructions in Text-Based Games

1 code implementation8 Nov 2022 Mathieu Tuli, Andrew C. Li, Pashootan Vaezipoor, Toryn Q. Klassen, Scott Sanner, Sheila A. McIlraith

Text-based games present a unique class of sequential decision making problem in which agents interact with a partially observable, simulated environment via actions and observations conveyed through natural language.

Decision Making Instruction Following +2

Noisy Symbolic Abstractions for Deep RL: A case study with Reward Machines

no code implementations20 Nov 2022 Andrew C. Li, Zizhao Chen, Pashootan Vaezipoor, Toryn Q. Klassen, Rodrigo Toro Icarte, Sheila A. McIlraith

Natural and formal languages provide an effective mechanism for humans to specify instructions and reward functions.

LLMs and the Abstraction and Reasoning Corpus: Successes, Failures, and the Importance of Object-based Representations

1 code implementation26 May 2023 Yudong Xu, Wenhao Li, Pashootan Vaezipoor, Scott Sanner, Elias B. Khalil

Although the state-of-the-art GPT-4 is unable to "reason" perfectly within non-language domains such as the 1D-ARC or a simple ARC subset, our study reveals that the use of object-based representations can significantly improve its reasoning ability.

Language Modelling Large Language Model

Fast Matrix Multiplication Without Tears: A Constraint Programming Approach

1 code implementation1 Jun 2023 Arnaud Deza, Chang Liu, Pashootan Vaezipoor, Elias B. Khalil

In this work, we propose a simple yet novel Constraint Programming approach to find non-commutative algorithms for fast matrix multiplication or provide proof of infeasibility otherwise.

Problem Decomposition valid

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