Automatic Digest algorithm

The algorithm mainly considers four aspects:

1. The relationship between the words in the title and the other words in the text;
2. The length of the sentence;
3. The position of the sentence (the second sentence of the general article is more important than the first sentence, the author often introduces key points here);
4. If some words appear more frequently on the site of the article, these words should be weighted.

General automatic Summary comparison is commonly used to extract the keywords in the article, the other is to extract the key sentences in the article

Extrank algorithm-the extraction of sentences

Textrank is actually the PageRank algorithm extended to the sentence, to some of the global information.

Automatic Digest algorithm