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Generative adversarial imitation learning (GAIL) has attracted increasing attention in the field of robot learning. It enables robots to learn a policy to achieve a task demonstrated by an expert while simultaneously estimating the reward…

Machine Learning · Computer Science 2019-11-04 Kyoichiro Kobayashi , Takato Horii , Ryo Iwaki , Yukie Nagai , Minoru Asada

In this paper, we present Goal-GAN, an interpretable and end-to-end trainable model for human trajectory prediction. Inspired by human navigation, we model the task of trajectory prediction as an intuitive two-stage process: (i) goal…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 Patrick Dendorfer , Aljoša Ošep , Laura Leal-Taixé

We consider an autonomous navigation robot that can accept human commands through natural language to provide services in an indoor environment. These natural language commands may include time, position, object, and action components.…

Robotics · Computer Science 2024-10-18 Kuan-Lin Chen , Tzu-Ti Wei , Li-Tzu Yeh , Elaine Kao , Yu-Chee Tseng , Jen-Jee Chen

Recent efforts on training visual navigation agents conditioned on language using deep reinforcement learning have been successful in learning policies for different multimodal tasks, such as semantic goal navigation and embodied question…

Machine Learning · Computer Science 2019-02-05 Devendra Singh Chaplot , Lisa Lee , Ruslan Salakhutdinov , Devi Parikh , Dhruv Batra

Prompt-based learning has been demonstrated as a compelling paradigm contributing to large language models' tremendous success (LLMs). Inspired by their success in language tasks, existing research has leveraged LLMs in embodied instruction…

We propose a framework of generative adversarial networks with multiple discriminators, which collaborate to represent a real dataset more effectively. Our approach facilitates learning a generator consistent with the underlying data…

Machine Learning · Computer Science 2024-04-04 Jinyoung Choi , Bohyung Han

It is crucial to efficiently execute instructions such as "Find an apple and a banana" or "Get ready for a field trip," which require searching for multiple objects or understanding context-dependent commands. This study addresses the…

We propose a novel model named Multi-Channel Attention Selection Generative Adversarial Network (SelectionGAN) for guided image-to-image translation, where we translate an input image into another while respecting an external semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Hao Tang , Philip H. S. Torr , Nicu Sebe

Over the past years, Generative Adversarial Networks (GANs) have shown a remarkable generation performance especially in image synthesis. Unfortunately, they are also known for having an unstable training process and might loose parts of…

Machine Learning · Computer Science 2019-11-18 Teodora Pandeva , Matthias Schubert

Object manipulation is a natural activity we perform every day. How humans handle objects can communicate not only the willfulness of the acting, or key aspects of the context where we operate, but also the properties of the objects…

Generative Adversarial Network(GAN) provides a good generative framework to produce realistic samples, but suffers from two recognized issues as mode collapse and unstable training. In this work, we propose to employ explicit manifold…

Machine Learning · Computer Science 2020-06-20 Guanhua Zheng , Jitao Sang , Changsheng Xu

Multimodal Large Language Models (MLLMs) have advanced open-world action understanding and can be adapted as generative classifiers for closed-set settings by autoregressively generating action labels as text. However, this approach is…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Zhanzhong Pang , Dibyadip Chatterjee , Fadime Sener , Angela Yao

We introduce AmbigNLG, a novel task designed to tackle the challenge of task ambiguity in instructions for Natural Language Generation (NLG). Ambiguous instructions often impede the performance of Large Language Models (LLMs), especially in…

Computation and Language · Computer Science 2024-11-05 Ayana Niwa , Hayate Iso

Multimodal task specification is essential for enhanced robotic performance, where \textit{Cross-modality Alignment} enables the robot to holistically understand complex task instructions. Directly annotating multimodal instructions for…

Interactive robotic grasping using natural language is one of the most fundamental tasks in human-robot interaction. However, language can be a source of ambiguity, particularly when there are ambiguous visual or linguistic contents. This…

Robotics · Computer Science 2022-03-16 Yang Yang , Xibai Lou , Changhyun Choi

Understanding human motion behavior is critical for autonomous moving platforms (like self-driving cars and social robots) if they are to navigate human-centric environments. This is challenging because human motion is inherently…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Agrim Gupta , Justin Johnson , Li Fei-Fei , Silvio Savarese , Alexandre Alahi

Objects rarely sit in isolation in human environments. As such, we'd like our robots to reason about how multiple objects relate to one another and how those relations may change as the robot interacts with the world. To this end, we…

Robotics · Computer Science 2023-03-20 Yixuan Huang , Adam Conkey , Tucker Hermans

In this paper, we propose a new framework for mitigating biases in machine learning systems. The problem of the existing mitigation approaches is that they are model-oriented in the sense that they focus on tuning the training algorithms to…

Machine Learning · Computer Science 2019-05-27 Adel Abusitta , Esma Aïmeur , Omar Abdel Wahab

Learning from multimodal data is an important research topic in machine learning, which has the potential to obtain better representations. In this work, we propose a novel approach to generative modeling of multimodal data based on…

Machine Learning · Computer Science 2021-12-21 Wenxue Chen , Jianke Zhu

Multimodal Language Analysis is a demanding area of research, since it is associated with two requirements: combining different modalities and capturing temporal information. During the last years, several works have been proposed in the…

Computation and Language · Computer Science 2022-01-10 Panagiotis Koromilas , Theodoros Giannakopoulos