Vector symbolic architectures.
Paper:
http://www.cs.wlu.edu/~levy/pubs/agi_2008_levy_gayler.pdf
And presentation:
http://video.google.com/videoplay?docid=-6666777138089848257
Jones, M. N., & Mewhort,D. J. K. (2007). Representing word meaning and order information in a composite holographic lexicon. Psychological Review, 114, 1-37.
http://psyc.queensu.ca/~hiplab/LAB_PUBS/Jones_Mewhort_PR.pdf
Also code here: