8. The method of claim 7 , further comprising: outputting, from the processing, an indication of which of the collections are present in specific files of the one or more software source code files.
7. The method of claim 1 wherein the software source code is in one or more software source code files, and wherein the keyword matrix is a file-keyword matrix comprising weighted sums of occurrences of the domain specific keywords in the one or more software source code files.