Need a translation of Figure 5 in Chapter 4.
Created by: wangkuiyi
https://github.com/PaddlePaddle/book/blob/develop/word2vec/image/ngram.png
- 词向量映射: Word Embedding Mapping
- 词向量连接: Word Embedding Concatenation
- 全连接层: Fully-Connected Layer
- 隐层: Hidden Layer)