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Agents that can learn to imitate given video observation -- \emph{without direct access to state or action information} are more applicable to learning in the natural world. However, formulating a reinforcement learning (RL) agent that…

机器学习 · 计算机科学 2023-07-14 Glen Berseth , Florian Golemo , Christopher Pal

Numerous embedding models have been recently explored to incorporate semantic knowledge into visual recognition. Existing methods typically focus on minimizing the distance between the corresponding images and texts in the embedding space…

计算机视觉与模式识别 · 计算机科学 2017-06-06 Dong Li , Hsin-Ying Lee , Jia-Bin Huang , Shengjin Wang , Ming-Hsuan Yang

Environmental sound classification (ESC) is a challenging problem due to the complexity of sounds. The classification performance is heavily dependent on the effectiveness of representative features extracted from the environmental sounds.…

声音 · 计算机科学 2020-07-15 Zhichao Zhang , Shugong Xu , Shunqing Zhang , Tianhao Qiao , Shan Cao

Active learning agents typically employ a query selection algorithm which solely considers the agent's learning objectives. However, this may be insufficient in more realistic human domains. This work uses imitation learning to enable an…

机器学习 · 计算机科学 2019-07-02 Kalesha Bullard , Yannick Schroecker , Sonia Chernova

Recently, contrastive self-supervised learning has become a key component for learning visual representations across many computer vision tasks and benchmarks. However, contrastive learning in the context of domain adaptation remains…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Mamatha Thota , Georgios Leontidis

Recent progress in contrastive learning has revolutionized unsupervised representation learning. Concretely, multiple views (augmentations) from the same image are encouraged to map to the similar embeddings, while views from different…

计算机视觉与模式识别 · 计算机科学 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

Scene graphs are a powerful structured representation of the underlying content of images, and embeddings derived from them have been shown to be useful in multiple downstream tasks. In this work, we employ a graph convolutional network to…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Paridhi Maheshwari , Ritwick Chaudhry , Vishwa Vinay

Semantic context is an important and useful cue for scene parsing in complicated natural images with a substantial amount of variations in objects and the environment. This paper proposes Spatially Constrained Location Prior (SCLP) for…

计算机视觉与模式识别 · 计算机科学 2018-02-27 Ligang Zhang , Brijesh Verma , David Stockwell , Sujan Chowdhury

The interpretation of spatial references is highly contextual, requiring joint inference over both language and the environment. We consider the task of spatial reasoning in a simulated environment, where an agent can act and receive…

计算与语言 · 计算机科学 2017-11-15 Michael Janner , Karthik Narasimhan , Regina Barzilay

Human-object interaction recognition aims for identifying the relationship between a human subject and an object. Researchers incorporate global scene context into the early layers of deep Convolutional Neural Networks as a solution. They…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Mert Kilickaya , Noureldien Hussein , Efstratios Gavves , Arnold Smeulders

The idea of experience sharing between cooperative agents naturally emerges from our understanding of how humans learn. Our evolution as a species is tightly linked to the ability to exchange learned knowledge with one another. It follows…

机器学习 · 计算机科学 2019-11-07 Lucas Oliveira Souza , Gabriel de Oliveira Ramos , Celia Ghedini Ralha

We introduce environment predictive coding, a self-supervised approach to learn environment-level representations for embodied agents. In contrast to prior work on self-supervised learning for images, we aim to jointly encode a series of…

计算机视觉与模式识别 · 计算机科学 2021-02-05 Santhosh K. Ramakrishnan , Tushar Nagarajan , Ziad Al-Halah , Kristen Grauman

The place recognition problem comprises two distinct subproblems; recognizing a specific location in the world ("specific" or "ordinary" place recognition) and recognizing the type of place (place categorization). Both are important…

机器人学 · 计算机科学 2018-04-17 Sourav Garg , Adam Jacobson , Swagat Kumar , Michael Milford

We examine the benefits of visual context in training neural language models to perform next-word prediction. A multi-modal neural architecture is introduced that outperform its equivalent trained on language alone with a 2\% decrease in…

计算与语言 · 计算机科学 2019-06-05 Alexander G. Ororbia , Ankur Mali , Matthew A. Kelly , David Reitter

Performing data augmentation for learning deep neural networks is known to be important for training visual recognition systems. By artificially increasing the number of training examples, it helps reducing overfitting and improves…

计算机视觉与模式识别 · 计算机科学 2019-09-23 Nikita Dvornik , Julien Mairal , Cordelia Schmid

Agents that are aware of the separation between themselves and their environments can leverage this understanding to form effective representations of visual input. We propose an approach for learning such structured representations for RL…

机器学习 · 计算机科学 2023-09-06 Kevin Gmelin , Shikhar Bahl , Russell Mendonca , Deepak Pathak

Whilst contrastive learning has recently brought notable benefits to deep clustering of unlabelled images by learning sample-specific discriminative visual features, its potential for explicitly inferring class decision boundaries is less…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Jiabo Huang , Shaogang Gong

Contrastive language--audio pretraining (CLAP) has achieved remarkable success as an audio--text embedding framework, but existing approaches are limited to monaural or single-source conditions and cannot fully capture spatial information.…

Visual place recognition is a critical task in computer vision, especially for localization and navigation systems. Existing methods often rely on contrastive learning: image descriptors are trained to have small distance for similar images…

计算机视觉与模式识别 · 计算机科学 2024-01-30 María Leyva-Vallina , Nicola Strisciuglio , Nicolai Petkov

Visual place recognition is a key to unlocking spatial navigation for animals, humans and robots. While state-of-the-art approaches are trained in a supervised manner and therefore hardly capture the information needed for generalizing to…

计算机视觉与模式识别 · 计算机科学 2023-12-25 Mohamed Adel Musallam , Vincent Gaudillière , Djamila Aouada