Integrate DANCER-summ

[achen353]

Overview

Given the divide and conquer approach of DANCER-summ, we will handle the summarization of a single document by section
Paper: https://arxiv.org/pdf/2004.06190.pdf
GitHub: https://github.com/AlexGidiotis/DANCER-summ

TODO

• #18
• #19
• #20
• #21

NOTE: Labeling Function is defined as the function that helps provide binary ground truth for all the sentences in the text for extractive summarization.