filters for document titles?

It would be useful to have the ability to filter/group document titles. For example, I read a lot of pdfs as a researcher; the title bar on my pdf reader (which appears to be where slife gets the current document name from?) states both the name of the pdf file, and the current page number. As a result, Slife records the page number and name of the pdf... not particularly useful when you have "thesis (page 101 of 200)", "thesis (page 102 of 200)" etc., each showing up for ~20 seconds.

One way around this might be to have way of filtering document names, so that, for example, in skim (my pdf reader), the document name is assumed to only be the part of the title before the brackets; i.e. by using regular expressions or something similar.