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This paper addresses the problem of simultaneous machine translation (SiMT) by exploring two main concepts: (a) adaptive policies to learn a good trade-off between high translation quality and low latency; and (b) visual information to…

Computation and Language · Computer Science 2021-02-24 Julia Ive , Andy Mingren Li , Yishu Miao , Ozan Caglayan , Pranava Madhyastha , Lucia Specia

Reinforcement learning (RL) is one of the active fields in machine learning, demonstrating remarkable potential in tackling real-world challenges. Despite its promising prospects, this methodology has encountered with issues and challenges,…

Machine Learning · Computer Science 2024-11-21 Alireza Rashidi Laleh , Majid Nili Ahmadabadi

Conventional Neural Machine Translation (NMT) models benefit from the training with an additional agent, e.g., dual learning, and bidirectional decoding with one agent decoding from left to right and the other decoding in the opposite…

Computation and Language · Computer Science 2019-09-04 Tianchi Bi , Hao Xiong , Zhongjun He , Hua Wu , Haifeng Wang

Recent times have witnessed sharp improvements in reinforcement learning tasks using deep reinforcement learning techniques like Deep Q Networks, Policy Gradients, Actor Critic methods which are based on deep learning based models and…

Machine Learning · Computer Science 2019-12-10 Uddeshya Upadhyay , Nikunj Shah , Sucheta Ravikanti , Mayanka Medhe

In this paper, we confront the problem of applying reinforcement learning to agents that perceive the environment through many sensors and that can perform parallel actions using many actuators as is the case in complex autonomous robots.…

Artificial Intelligence · Computer Science 2011-07-04 E. Celaya , J. M. Porta

Although Neural Machine Translation (NMT) models have advanced state-of-the-art performance in machine translation, they face problems like the inadequate translation. We attribute this to that the standard Maximum Likelihood Estimation…

Computation and Language · Computer Science 2018-11-22 Xiang Kong , Zhaopeng Tu , Shuming Shi , Eduard Hovy , Tong Zhang

In human-in-the-loop reinforcement learning or environments where calculating a reward is expensive, the costly rewards can make learning efficiency challenging to achieve. The cost of obtaining feedback from humans or calculating expensive…

Machine Learning · Computer Science 2025-03-03 Muhammed Yusuf Satici , David L. Roberts

In this paper we take the first steps in studying a new approach to synthesis of efficient communication schemes in multi-agent systems, trained via reinforcement learning. We combine symbolic methods with machine learning, in what is…

Artificial Intelligence · Computer Science 2022-12-29 Erik Jergéus , Leo Karlsson Oinonen , Emil Carlsson , Moa Johansson

To widen their accessibility and increase their utility, intelligent agents must be able to learn complex behaviors as specified by (non-expert) human users. Moreover, they will need to learn these behaviors within a reasonable amount of…

Machine Learning · Computer Science 2019-02-13 Dilip Arumugam , Jun Ki Lee , Sophie Saskin , Michael L. Littman

Reinforcement learning from human feedback (RLHF) has emerged as a key technique for aligning the output of large language models (LLMs) with human preferences. To learn the reward function, most existing RLHF algorithms use the…

Machine Learning · Statistics 2026-02-11 Kai Ye , Hongyi Zhou , Jin Zhu , Francesco Quinzan , Chengchun Shi

Machine learning algorithms learn to solve a task, but are unable to improve their ability to learn. Meta-learning methods learn about machine learning algorithms and improve them so that they learn more quickly. However, existing…

Machine Learning · Computer Science 2025-01-28 Calarina Muslimani , Alex Lewandowski , Dale Schuurmans , Matthew E. Taylor , Jun Luo

Training efficiency is one of the main problems for Neural Machine Translation (NMT). Deep networks need for very large data as well as many training iterations to achieve state-of-the-art performance. This results in very high computation…

Computation and Language · Computer Science 2017-10-04 Dakun Zhang , Jungi Kim , Josep Crego , Jean Senellart

Reinforcement learning from human feedback (RLHF) is a recent technique to improve the quality of the text generated by a language model, making it closer to what humans would generate. A core ingredient in RLHF's success in aligning and…

Computation and Language · Computer Science 2024-07-08 Miguel Moura Ramos , Patrick Fernandes , António Farinhas , André F. T. Martins

Advances in reinforcement learning research have demonstrated the ways in which different agent-based models can learn how to optimally perform a task within a given environment. Reinforcement leaning solves unsupervised problems where…

Machine Learning · Computer Science 2022-11-03 Herkulaas Combrink , Vukosi Marivate , Benjamin Rosman

In recent years some researchers have explored the use of reinforcement learning (RL) algorithms as key components in the solution of various natural language processing tasks. For instance, some of these algorithms leveraging deep neural…

Computation and Language · Computer Science 2026-04-29 Victor Uc-Cetina , Nicolas Navarro-Guerrero , Anabel Martin-Gonzalez , Cornelius Weber , Stefan Wermter

Reward machines are an established tool for dealing with reinforcement learning problems in which rewards are sparse and depend on complex sequences of actions. However, existing algorithms for learning reward machines assume an overly…

Machine Learning · Computer Science 2025-10-20 Jan Corazza , Ivan Gavran , Daniel Neider

Learning in multi-player games can model a large variety of practical scenarios, where each player seeks to optimize its own local objective function, which at the same time relies on the actions taken by others. Motivated by the frequent…

Optimization and Control · Mathematics 2023-09-08 Yuanhanqing Huang , Jianghai Hu

Attention-based Neural Machine Translation (NMT) models suffer from attention deficiency issues as has been observed in recent research. We propose a novel mechanism to address some of these limitations and improve the NMT attention.…

Computation and Language · Computer Science 2016-08-10 Baskaran Sankaran , Haitao Mi , Yaser Al-Onaizan , Abe Ittycheriah

Large language models (LLMs) possess strong multilingual capabilities, and combining Reinforcement Learning from Human Feedback (RLHF) with translation tasks has shown great potential. However, we observe that this paradigm performs…

Computation and Language · Computer Science 2025-08-06 Tianjiao Li , Mengran Yu , Chenyu Shi , Yanjun Zhao , Xiaojing Liu , Qiang Zhang , Qi Zhang , Xuanjing Huang , Jiayin Wang

We propose to directly map raw visual observations and text input to actions for instruction execution. While existing approaches assume access to structured environment representations or use a pipeline of separately trained models, we…

Computation and Language · Computer Science 2017-07-25 Dipendra Misra , John Langford , Yoav Artzi