如何区分Recurrent Neural Network(循环神经网络)和Recursive Neural Network(递归神经网络)

RNN一般指的是前者，后者是前者的泛化。

Recurrent networks (Elman, 1990) are designed to model sequences, while recursive networks (Goller & Küchler, 1996) are generalizations of recurrent networks that can handle trees.
—Yoav Goldberg 《A Primer on Neural Network Models for Natural Language Processing》