论文标题

学习意图交流:介绍

Learning to Communicate with Intent: An Introduction

论文作者

Gutierrez-Estevez, Miguel Angel, Wu, Yiqun, Zhou, Chan

论文摘要

我们提出了一个新颖的框架,以学习如何以意图进行通信,即,基于通信的最终目标,通过无线通信渠道传输消息。与经典通信系统形成鲜明对比的是,无论最终目标如何,都要准确地或大约在接收器侧或大约在接收器端复制消息。我们的程序足够笼统,可以适应任何类型的目标或任务,只要上述任务是(几乎每个地方)可区分的功能,可以在其中传播梯度。我们专注于监督学习和强化学习(RL)任务,并提出算法以端到端的方式共同学习通信系统和任务。然后,我们深入研究了图像的传输,并提出了两个系统,一个用于图像的分类,第二个系统用于根据RL进行Atari游戏。将性能与联合源和渠道编码(JSCC)通信系统进行比较,旨在最大程度地减少接收器端的消息的重建错误,结果总体上显示了很大的改进。此外,对于RL任务,我们表明,尽管JSCC策略即使在高SNR中也不比随机选择策略好,但我们的方法即使对于低SNR,我们也接近上限。

We propose a novel framework to learn how to communicate with intent, i.e., to transmit messages over a wireless communication channel based on the end-goal of the communication. This stays in stark contrast to classical communication systems where the objective is to reproduce at the receiver side either exactly or approximately the message sent by the transmitter, regardless of the end-goal. Our procedure is general enough that can be adapted to any type of goal or task, so long as the said task is a (almost-everywhere) differentiable function over which gradients can be propagated. We focus on supervised learning and reinforcement learning (RL) tasks, and propose algorithms to learn the communication system and the task jointly in an end-to-end manner. We then delve deeper into the transmission of images and propose two systems, one for the classification of images and a second one to play an Atari game based on RL. The performance is compared with a joint source and channel coding (JSCC) communication system designed to minimize the reconstruction error of messages at the receiver side, and results show overall great improvement. Further, for the RL task, we show that while a JSCC strategy is not better than a random action selection strategy even at high SNRs, with our approach we get close to the upper bound even for low SNRs.

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