Paraphrase the following text with advanced English words for a scientific paper: Neural network based methods have obtained great progress on a variety of natural language processing tasks. However, in most previous works, the models are learned based on single-task supervised objectives, which often suffer from insufficient training data. In this paper, we use the multi-task learning framework to jointly learn across multiple related tasks.

Advanced neural network techniques have achieved remarkable success in a wide range of natural language processing applications . However , in most previous studies , the models were trained using single - task super vised object ives , which are often limited by ins u fficient training data . In this research , we employ a multi - task learning framework to joint ly train models across multiple related tasks . </s>