给定一篇英文论文的摘要，翻译成中文。
Abstract: Recent years have witnessed a surge of interest in Natural Language Processing (NLP) with the advent of deep learning techniques. In this paper, we propose a novel approach that integrates two different models, a hierarchical attention network (HAN) and a bidirectional long short-term memory neural network (bi-LSTM), to predict the sentiment of movie reviews. The experimental results demonstrate that our model outperforms state-of-the-art methods on four benchmark datasets.
近年来，随着深度学习技术的出现，自然语言处理（NLP）引起了越来越多的关注。在这篇论文中，我们提出了一种新颖的方法，将两种不同的模型——层次注意力网络（HAN）和双向长短期记忆神经网络（bi-LSTM）集成起来，预测电影评论的情感。实验结果表明，我们的模型在四个基准数据集上表现优于最先进的方法。