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Safety comes first in many real-world applications involving autonomous agents. Despite a large number of reinforcement learning (RL) methods focusing on safety-critical tasks, there is still a lack of high-quality evaluation of those…

Machine Learning · Computer Science 2022-12-13 Linrui Zhang , Qin Zhang , Li Shen , Bo Yuan , Xueqian Wang , Dacheng Tao

Most meta reinforcement learning (meta-RL) methods learn to adapt to new tasks by directly optimizing the parameters of policies over primitive action space. Such algorithms work well in tasks with relatively slight difference. However,…

Machine Learning · Computer Science 2020-03-05 Haotian Fu , Hongyao Tang , Jianye Hao , Wulong Liu , Chen Chen

Offline reinforcement learning (RL) offers a promising framework for training agents using pre-collected datasets without the need for further environment interaction. However, policies trained on offline data often struggle to generalise…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Ahmet H. Güzel , Ilija Bogunovic , Jack Parker-Holder

Generalised zero-shot learning (GZSL) is a classification problem where the learning stage relies on a set of seen visual classes and the inference stage aims to identify both the seen visual classes and a new set of unseen visual classes.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Rafael Felix , Ben Harwood , Michele Sasdelli , Gustavo Carneiro

Context: Requirements engineering researchers have been experimenting with machine learning and deep learning approaches for a range of RE tasks, such as requirements classification, requirements tracing, ambiguity detection, and modelling.…

Software Engineering · Computer Science 2023-03-17 Waad Alhoshan , Alessio Ferrari , Liping Zhao

We study zero-shot generalization in reinforcement learning-optimizing a policy on a set of training tasks to perform well on a similar but unseen test task. To mitigate overfitting, previous work explored different notions of invariance to…

Machine Learning · Computer Science 2024-01-17 Ev Zisselman , Itai Lavie , Daniel Soudry , Aviv Tamar

Large language models (LLMs) struggle with precise length control, particularly in zero-shot settings. We conduct a comprehensive study evaluating LLMs' length control capabilities across multiple measures and propose practical methods to…

Computation and Language · Computer Science 2025-02-12 Fabian Retkowski , Alexander Waibel

Many AI problems, in robotics and other domains, are goal-based, essentially seeking trajectories leading to various goal states. Reinforcement learning (RL), building on Bellman's optimality equation, naturally optimizes for a single goal,…

Artificial Intelligence · Computer Science 2020-12-22 Tom Jurgenson , Or Avner , Edward Groshev , Aviv Tamar

We present a comprehensive system for addressing Tasks A, B, and C of the LLMs4OL 2025 challenge, which together span the full ontology construction pipeline: term extraction, typing, and taxonomy discovery. Our approach combines…

Computation and Language · Computer Science 2025-08-28 Aleksandra Beliaeva , Temurbek Rahmatullaev

In this study, we address the challenge of learning generalizable policies for compositional tasks defined by logical specifications. These tasks consist of multiple temporally extended sub-tasks. Due to the sub-task inter-dependencies and…

Artificial Intelligence · Computer Science 2024-11-05 Duo Xu , Faramarz Fekri

Long-term planning in complex, text-based environments presents significant challenges due to open-ended action spaces, ambiguous observations, and sparse feedback. Recent research suggests that large language models (LLMs) encode rich…

Artificial Intelligence · Computer Science 2025-12-11 Haoye Lu , Pavan Seshadri , Kaheer Suleman

Conventional approaches to text classification typically assume the existence of a fixed set of predefined labels to which a given text can be classified. However, in real-world applications, there exists an infinite label space for…

Computation and Language · Computer Science 2023-05-29 Christopher Clarke , Yuzhao Heng , Yiping Kang , Krisztian Flautner , Lingjia Tang , Jason Mars

Techniques based on Reinforcement Learning (RL) are increasingly being used to design control policies for robotic systems. RL fundamentally relies on state-based reward functions to encode desired behavior of the robot and bad reward…

Robotics · Computer Science 2020-11-11 Parv Kapoor , Anand Balakrishnan , Jyotirmoy V. Deshmukh

Trained on large datasets, deep learning (DL) can accurately classify videos into hundreds of diverse classes. However, video data is expensive to annotate. Zero-shot learning (ZSL) proposes one solution to this problem. ZSL trains a model…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Biagio Brattoli , Joseph Tighe , Fedor Zhdanov , Pietro Perona , Krzysztof Chalupka

We aim to solve the problem of temporal-constraint learning from demonstrations to reproduce demonstration-like logic-constrained behaviors. Learning logic constraints is challenging due to the combinatorially large space of possible…

Robotics · Computer Science 2025-11-11 Minwoo Cho , Jaehwi Jang , Daehyung Park

Recent advancements in reinforcement learning have made significant impacts across various domains, yet they often struggle in complex multi-agent environments due to issues like algorithm instability, low sampling efficiency, and the…

Multiagent Systems · Computer Science 2024-08-22 Cheng Xu , Changtian Zhang , Yuchen Shi , Ran Wang , Shihong Duan , Yadong Wan , Xiaotong Zhang

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

Audio-visual generalised zero-shot learning for video classification requires understanding the relations between the audio and visual information in order to be able to recognise samples from novel, previously unseen classes at test time.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Otniel-Bogdan Mercea , Thomas Hummel , A. Sophia Koepke , Zeynep Akata

In many multirobot applications, planning trajectories in a way to guarantee that the collective behavior of the robots satisfies a certain high-level specification is crucial. Motivated by this problem, we introduce counting temporal…

Robotics · Computer Science 2018-11-01 Yunus Emre Sahin , Petter Nilsson , Necmiye Ozay

Zero-shot reinforcement learning (RL) methods aim at instantly producing a behavior for an RL task in a given environment, from a description of the reward function. These methods are usually tested by evaluating their average performance…

Machine Learning · Computer Science 2025-02-18 Yann Ollivier