CoocViewer is a tool to visualize co-occurrences and positional co-occurrences. A first demo is now available here and the according data model, consisting of 10 million sentences is available here. A more detailed installation instruction is found in the INSTALL.txt within the sourcecode in the svn.
Janneke Rauscher and Leonard Swiezinski and Martin Riedl and Chris Biemann (2013): Exploring Cities in Crime: Significant Concordance and Co-occurrence in Quantitative Literary Analysis. Proceedings of the Computational Linguistics for Literature Workshop at NAACL-HLT 2013, Atlanta, GA, USA