A pre-relational databases datamodel. "Preceeded" by the relational model since the flexibility of this makes it hard to work with. Now re-invented in RDF :)
Stock Cloud began as data mining experiment with a very simple goal — "Could we extract Business Partnerships by tracking press releases?" To accomplish this we selected a press release distribution agency, MarketWire, and began tracking releases. Usi
K. Kyriakopoulos, and K. Psarris. PACT '05: Proceedings of the 14th International Conference on Parallel Architectures and Compilation Techniques (PACT'05), page 143--156. Washington, DC, USA, IEEE Computer Society, (2005)