Can you provide a bit more details about your approach? Are you using machine learning or just simple scoring based on some heuristics? From the look of the source code it seems to be the latter to me.
It's mostly statistical (simple scoring). But as you can see in this lines of code: https://github.com/MojoJolo/textteaser/blob/master/src/main/... I keep track of the keywords used by the blog and category before. Through it, TextTeaser employs a little bit of machine learning to improve the quality of the results.
