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Precise action localization in untrimmed video is vital for fields such as professional sports and minimally invasive surgery, where the delineation of particular motions in recordings can dramatically enhance analysis. But in many cases,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Josiah Aklilu , Xiaohan Wang , Serena Yeung-Levy

In this paper, we describe a novel approach to imitation learning that infers latent policies directly from state observations. We introduce a method that characterizes the causal effects of latent actions on observations while…

Machine Learning · Computer Science 2019-05-14 Ashley D. Edwards , Himanshu Sahni , Yannick Schroecker , Charles L. Isbell

Zero-shot learning methods typically assume that the new, unseen classes encountered during deployment come from the same distribution as the the classes in the training set. However, real-world scenarios often involve class distribution…

Machine Learning · Computer Science 2024-12-11 Yuli Slavutsky , Yuval Benjamini

Recent progress in imitation learning has been enabled by policy architectures that scale to complex visuomotor tasks, multimodal distributions, and large datasets. However, these methods often rely on learning from large amount of expert…

Robotics · Computer Science 2025-04-24 Amber Xie , Oleh Rybkin , Dorsa Sadigh , Chelsea Finn

Deep Reinforcement Learning (RL) models often fail to generalize when even small changes occur in the environment's observations or task requirements. Addressing these shifts typically requires costly retraining, limiting the reusability of…

Machine Learning · Computer Science 2025-03-05 Antonio Pio Ricciardi , Valentino Maiorca , Luca Moschella , Riccardo Marin , Emanuele Rodolà

Methods proposed in the literature for zero-shot learning (ZSL) are typically suitable for offline learning and cannot continually learn from sequential streaming data. The sequential data comes in the form of tasks during training.…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Chandan Gautam , Sethupathy Parameswaran , Ashish Mishra , Suresh Sundaram

Recently, data-driven task-oriented dialogue systems have achieved promising performance in English. However, developing dialogue systems that support low-resource languages remains a long-standing challenge due to the absence of…

Computation and Language · Computer Science 2019-11-22 Zihan Liu , Genta Indra Winata , Zhaojiang Lin , Peng Xu , Pascale Fung

Zero-shot learning (ZSL) aims to recognize novel classes by transferring semantic knowledge from seen classes to unseen classes. Since semantic knowledge is built on attributes shared between different classes, which are highly local,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-08 Yang Liu , Lei Zhou , Xiao Bai , Yifei Huang , Lin Gu , Jun Zhou , Tatsuya Harada

Zero-shot Learning (ZSL), which aims to predict for those classes that have never appeared in the training data, has arisen hot research interests. The key of implementing ZSL is to leverage the prior knowledge of classes which builds the…

Artificial Intelligence · Computer Science 2021-02-16 Yuxia Geng , Jiaoyan Chen , Zhuo Chen , Jeff Z. Pan , Zhiquan Ye , Zonggang Yuan , Yantao Jia , Huajun Chen

How can deep learning systems flexibly reuse their knowledge? Toward this goal, we propose a new class of challenges, and a class of architectures that can solve them. The challenges are meta-mappings, which involve systematically…

Machine Learning · Computer Science 2019-11-14 Andrew K. Lampinen , James L. McClelland

This work presents an incremental learning approach for autonomous agents to learn new tasks in a non-stationary environment. Updating a DNN model-based agent to learn new target tasks requires us to store past training data and needs a…

Machine Learning · Computer Science 2023-01-31 Abhinit Kumar Ambastha , Leong Tze Yun

The goal of few-shot learning is to classify unseen categories with few labeled samples. Recently, the low-level information metric-learning based methods have achieved satisfying performance, since local representations (LRs) are more…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Haoxing Chen , Huaxiong Li , Yaohui Li , Chunlin Chen

Multi-agent pathfinding (MAPF) is a problem that generally requires finding collision-free paths for multiple agents in a shared environment. Solving MAPF optimally, even under restrictive assumptions, is NP-hard, yet efficient solutions…

Multiagent Systems · Computer Science 2025-04-09 Anton Andreychuk , Konstantin Yakovlev , Aleksandr Panov , Alexey Skrynnik

Zero-shot learning for visual recognition, e.g., object and action recognition, has recently attracted a lot of attention. However, it still remains challenging in bridging the semantic gap between visual features and their underlying…

Computer Vision and Pattern Recognition · Computer Science 2017-06-05 Qian Wang , Ke Chen

As an important and challenging problem in computer vision, zero-shot learning (ZSL) aims at automatically recognizing the instances from unseen object classes without training data. To address this problem, ZSL is usually carried out in…

Computer Vision and Pattern Recognition · Computer Science 2017-03-28 Yunlong Yu , Zhong Ji , Xi Li , Jichang Guo , Zhongfei Zhang , Haibin Ling , Fei Wu

The ability to plan into the future while utilizing only raw high-dimensional observations, such as images, can provide autonomous agents with broad capabilities. Visual model-based reinforcement learning (RL) methods that plan future…

Machine Learning · Computer Science 2021-08-10 Oleh Rybkin , Chuning Zhu , Anusha Nagabandi , Kostas Daniilidis , Igor Mordatch , Sergey Levine

The aim in imitation learning is to learn effective policies by utilizing near-optimal expert demonstrations. However, high-quality demonstrations from human experts can be expensive to obtain in large numbers. On the other hand, it is…

Machine Learning · Computer Science 2021-10-29 Mengjiao Yang , Sergey Levine , Ofir Nachum

We introduce LUMOS, a language-conditioned multi-task imitation learning framework for robotics. LUMOS learns skills by practicing them over many long-horizon rollouts in the latent space of a learned world model and transfers these skills…

Robotics · Computer Science 2025-03-14 Iman Nematollahi , Branton DeMoss , Akshay L Chandra , Nick Hawes , Wolfram Burgard , Ingmar Posner

Zero-shot learning (ZSL) aims to recognize a set of unseen classes without any training images. The standard approach to ZSL requires a set of training images annotated with seen class labels and a semantic descriptor for seen/unseen…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Nanyi Fei , Jiechao Guan , Zhiwu Lu , Tao Xiang , Ji-Rong Wen

Zero-shot intent classification is a vital and challenging task in dialogue systems, which aims to deal with numerous fast-emerging unacquainted intents without annotated training data. To obtain more satisfactory performance, the crucial…

Computation and Language · Computer Science 2022-06-07 Han Liu , Siyang Zhao , Xiaotong Zhang , Feng Zhang , Junjie Sun , Hong Yu , Xianchao Zhang