Before revision: \end{abstract} 
After revision: \end{abstract} through the attention mechanism. In our experiments, SEM achieves an average F1-Measure of 97.11\% on the SciTSR dataset which outperforms other methods by a large margin. We also won the first place in the complex table and third place in all tables in ICDAR 2021 Competition on Scientific Literature Parsing, Task-B. Extensive experiments on other publicly available datasets demonstrate that our model achieves state-of-the-art.