Search Results for author: Christopher J. Pal

Found 11 papers, 5 papers with code

Wuerstchen: An Efficient Architecture for Large-Scale Text-to-Image Diffusion Models

1 code implementation1 Jun 2023 Pablo Pernias, Dominic Rampas, Mats L. Richter, Christopher J. Pal, Marc Aubreville

This highly compressed representation of an image provides much more detailed guidance compared to latent representations of language and this significantly reduces the computational requirements to achieve state-of-the-art results.

Image Compression Image Generation

Controllable Image Generation via Collage Representations

no code implementations26 Apr 2023 Arantxa Casanova, Marlène Careil, Adriana Romero-Soriano, Christopher J. Pal, Jakob Verbeek, Michal Drozdzal

Our experiments on the OI dataset show that M&Ms outperforms baselines in terms of fine-grained scene controllability while being very competitive in terms of image quality and sample diversity.

Attribute Image Generation

Reinforced active learning for image segmentation

1 code implementation ICLR 2020 Arantxa Casanova, Pedro O. Pinheiro, Negar Rostamzadeh, Christopher J. Pal

Our method proposes a new modification of the deep Q-network (DQN) formulation for active learning, adapting it to the large-scale nature of semantic segmentation problems.

Active Learning Image Segmentation +3

Structure Learning for Neural Module Networks

no code implementations WS 2019 Vardaan Pahuja, Jie Fu, Sarath Chandar, Christopher J. Pal

In current formulations of such networks only the parameters of the neural modules and/or the order of their execution is learned.

Question Answering Visual Question Answering

Active Domain Randomization

2 code implementations9 Apr 2019 Bhairav Mehta, Manfred Diaz, Florian Golemo, Christopher J. Pal, Liam Paull

Our experiments show that domain randomization may lead to suboptimal, high-variance policies, which we attribute to the uniform sampling of environment parameters.

Attribute

Finding and Visualizing Weaknesses of Deep Reinforcement Learning Agents

no code implementations ICLR 2020 Christian Rupprecht, Cyril Ibrahim, Christopher J. Pal

Further, critical states in which a very high or a very low reward can be achieved are often interesting to understand the situational awareness of the system as they can correspond to risky states.

Autonomous Driving Decision Making +2

Visual Imitation Learning with Recurrent Siamese Networks

no code implementations27 Sep 2018 Glen Berseth, Christopher J. Pal

In this paper we propose an approach using only visual information to learn a distance metric between agent behaviour and a given video demonstration.

Imitation Learning

Learning General Purpose Distributed Sentence Representations via Large Scale Multi-task Learning

4 code implementations ICLR 2018 Sandeep Subramanian, Adam Trischler, Yoshua Bengio, Christopher J. Pal

In this work, we present a simple, effective multi-task learning framework for sentence representations that combines the inductive biases of diverse training objectives in a single model.

Multi-Task Learning Natural Language Inference +2

Deep Complex Networks

9 code implementations ICLR 2018 Chiheb Trabelsi, Olexa Bilaniuk, Ying Zhang, Dmitriy Serdyuk, Sandeep Subramanian, João Felipe Santos, Soroush Mehri, Negar Rostamzadeh, Yoshua Bengio, Christopher J. Pal

Despite their attractive properties and potential for opening up entirely new neural architectures, complex-valued deep neural networks have been marginalized due to the absence of the building blocks required to design such models.

Image Classification Music Transcription +1

A New Smooth Approximation to the Zero One Loss with a Probabilistic Interpretation

no code implementations18 Nov 2015 Md. Kamrul Hasan, Christopher J. Pal

We examine a new form of smooth approximation to the zero one loss in which learning is performed using a reformulation of the widely used logistic function.

Structured Prediction

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