We implemented the TVSM on a PostgreSQL5 version 7.2 relational database. For a better performance, only entries with a scalar-product larger than the scalarthreshold 0.5 are stored in the “scalarproduct” table (this is equivalent to set all scalar-products lesser than the scalar-threshold to value zero). For our tests, we used 7184 news documents from the German Heise-Ticker6 Website. 96887 terms have been extracted from these documents and have been stored in the “term” table.