Search Results for author: Christian Tjandraatmadja

Found 8 papers, 3 papers with code

Reinforcement Learning with Combinatorial Actions: An Application to Vehicle Routing

1 code implementation NeurIPS 2020 Arthur Delarue, Ross Anderson, Christian Tjandraatmadja

We develop a framework for value-function-based deep reinforcement learning with a combinatorial action space, in which the action selection problem is explicitly formulated as a mixed-integer optimization problem.

Combinatorial Optimization reinforcement-learning +1

The Convex Relaxation Barrier, Revisited: Tightened Single-Neuron Relaxations for Neural Network Verification

no code implementations NeurIPS 2020 Christian Tjandraatmadja, Ross Anderson, Joey Huchette, Will Ma, Krunal Patel, Juan Pablo Vielma

We improve the effectiveness of propagation- and linear-optimization-based neural network verification algorithms with a new tightened convex relaxation for ReLU neurons.

CAQL: Continuous Action Q-Learning

no code implementations ICLR 2020 Moonkyung Ryu, Yin-Lam Chow, Ross Anderson, Christian Tjandraatmadja, Craig Boutilier

Value-based reinforcement learning (RL) methods like Q-learning have shown success in a variety of domains.

Continuous Control Q-Learning +1

Strong mixed-integer programming formulations for trained neural networks

no code implementations20 Nov 2018 Ross Anderson, Joey Huchette, Christian Tjandraatmadja, Juan Pablo Vielma

We present an ideal mixed-integer programming (MIP) formulation for a rectified linear unit (ReLU) appearing in a trained neural network.

Strong convex relaxations and mixed-integer programming formulations for trained neural networks

1 code implementation5 Nov 2018 Ross Anderson, Joey Huchette, Christian Tjandraatmadja, Juan Pablo Vielma

We present strong convex relaxations for high-dimensional piecewise linear functions that correspond to trained neural networks.

Optimization and Control 90C11

How Could Polyhedral Theory Harness Deep Learning?

no code implementations17 Jun 2018 Thiago Serra, Christian Tjandraatmadja, Srikumar Ramalingam

The holy grail of deep learning is to come up with an automatic method to design optimal architectures for different applications.

Bounding and Counting Linear Regions of Deep Neural Networks

no code implementations6 Nov 2017 Thiago Serra, Christian Tjandraatmadja, Srikumar Ramalingam

We investigate the complexity of deep neural networks (DNN) that represent piecewise linear (PWL) functions.

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