[drakaal]

Changing the sentences adds bias. Maintaining the author's intent is important.

Generating news highlights from lots of sources might be cool as computer generated content. But rewriting an author's story in new words is not adding value it is just ripping them off.

[MojoJolo]

Thanks. I got pretty good insights. Bias doesn't come into my mind. So you're saying multi-document "summarization" maybe the next step of consumer automatic summarization? There are many research about multi-document summarization, and will look into it.