I found the answer to my question. It is still extraction. Doing abstraction is still a difficult problem to solve. the app's summaries are intelligible senten

I found the answer to my question. It is still extraction. Doing abstraction is still a difficult problem to solve. the app's summaries are intelligible sentences, but since they're extracted from articles without providing any other context besides headlines, they often sound disjointed and non-conclusive. http://www.theverge.com/2012/11/1/3583720/summly-nick-d-aloisio http://www.theverge.com/2012/11/1/3583720/summly-nick-d-aloi...