no code implementations • 11 Mar 2024 • Chao Zhang, Mohan Li, Ignas Budvytis, Stephan Liwicki
However, most existing works in embodied dialog research focus on navigation and leave the localization task understudied.
1 code implementation • 15 Feb 2024 • Steven Morad, Chris Lu, Ryan Kortvelesy, Stephan Liwicki, Jakob Foerster, Amanda Prorok
Memory models such as Recurrent Neural Networks (RNNs) and Transformers address Partially Observable Markov Decision Processes (POMDPs) by mapping trajectories to latent Markov states.
no code implementations • 14 Dec 2023 • Rudra P. K. Poudel, Harit Pandya, Stephan Liwicki, Roberto Cipolla
To address these challenges, we present a world model that learns invariant features using (i) contrastive unsupervised learning and (ii) an intervention-invariant regularizer.
3 code implementations • 3 Mar 2023 • Steven Morad, Ryan Kortvelesy, Matteo Bettini, Stephan Liwicki, Amanda Prorok
Real world applications of Reinforcement Learning (RL) are often partially observable, thus requiring memory.
no code implementations • 20 Jun 2022 • Guile Wu, Chao Zhang, Stephan Liwicki
In global consistent quantization, we employ contrastive learning for both embedding and quantized representations and fuses these representations for consistent contrastive regularization between instances.
1 code implementation • 27 Jun 2021 • Steven D. Morad, Stephan Liwicki, Ryan Kortvelesy, Roberto Mecca, Amanda Prorok
Solving partially-observable Markov decision processes (POMDPs) is critical when applying reinforcement learning to real-world problems, where agents have an incomplete view of the world.
no code implementations • 11 Sep 2020 • Steven D. Morad, Roberto Mecca, Rudra P. K. Poudel, Stephan Liwicki, Roberto Cipolla
We present NavACL, a method of automatic curriculum learning tailored to the navigation task.
1 code implementation • ICCV 2019 • Chao Zhang, Stephan Liwicki, William Smith, Roberto Cipolla
For the spherical domain, several methods recently adopt an icosahedron mesh, but systems are typically rotation invariant or require significant memory and parameters, thus enabling execution only at very low resolutions.
Ranked #21 on Semantic Segmentation on Stanford2D3D Panoramic
25 code implementations • 12 Feb 2019 • Rudra P. K. Poudel, Stephan Liwicki, Roberto Cipolla
The encoder-decoder framework is state-of-the-art for offline semantic image segmentation.
Ranked #7 on Semantic Segmentation on SynPASS
2 code implementations • 11 May 2018 • Rudra P. K. Poudel, Ujwal Bonde, Stephan Liwicki, Christopher Zach
Modern deep learning architectures produce highly accurate results on many challenging semantic segmentation datasets.
Ranked #79 on Semantic Segmentation on Cityscapes val
no code implementations • CVPR 2014 • Stephan Liwicki, Minh-Tri Pham, Stefanos Zafeiriou, Maja Pantic, Bjorn Stenger
In this paper we introduce a new distance for robustly matching vectors of 3D rotations.