对一篇英文论文进行翻译。


以下是英文论文的摘要，需要进行中文翻译：
"Recent developments in machine learning have renewed interest in building agents that can interact with humans through natural language. Despite progress in many areas, agents that can handle unrestricted natural language input are still relatively limited in their practical capabilities, particularly with respect to complex, multiturn interactions. In this paper, we propose a simple goal-based framework that uses natural language generation and sequence-to-sequence models to perform simple negotiations with humans. Through targeted user studies and a competition on a collaborative task, we show that our system is effective at performing these tasks, but it struggles when interactions become more complex, indicating directions for future research."
机器学习最近的发展使得建立可以通过自然语言与人类互动的代理程序重新受到了关注。尽管在许多领域已经取得了进展，但是能够处理不受限制的自然语言输入的代理程序在实际应用中的能力仍然相对有限，特别是在复杂的多轮交互方面。本文提出了一个简单的基于目标的框架，利用自然语言生成和序列到序列模型，与人类进行简单的协商。通过针对用户的研究和协作任务的竞赛，我们展示了我们的系统在执行这些任务时是有效的，但当交互变得更加复杂时，它会遇到困难，这表明了未来研究的方向。