Extract key sentences from a text

Question

do you know about an effective method for extracting key sentences from a text with their frequency parameters, etc and that can also do "stemming" (search also for similar sentences) ?

I wonder also if there is some software implementation

Thanks a lot

Answer 1

Here's a list of Peter Turney's papers about extracting keyphrases from text. Here's a list of Text Summarization Resources.Stemming and Text Similarity are different, large and evolving research areas. You have to give us a much more focused question in order to get a specific answer.