I'm using 4 features of the article: Title, sentence length, sentence position, and modified keyword frequency. The first three features are just normal that you can see in most automatic summarization research. Modified keyword frequency considers not just the frequency, but also the distance of each keyword. :) There. That's just a brief explanation of how TextTeaser works.
You mention in the article that you developed the algorithm as a part of writing your MSc thesis. Is your thesis available on the Internet (as in pdf or in any other format)?
I was reading about various topics related to summarization recently, and I'm just wondering if your "modified keyword frequency" is some type of ConcGram.
