3. The one or more computer-readable storage media of claim 2 , wherein said mapping assigns each of said plurality of first texts a position in concept space by assigning, for each of said plurality of first texts, a relevance score against each of the n Wikipedia articles and by creating a vector that contains each of the n relevance scores for a given one of the plurality of first texts.
3. The one or more computer-readable storage media of claim 2 , wherein said mapping assigns each of said plurality of first texts a position in concept space by assigning, for each of said plurality of first texts, a relevance score against each of the n Wikipedia articles and by creating a vector that contains each of the n relevance scores for a given one of the plurality of first texts. 4. The one or more computer-readable storage media of claim 3 , wherein each of the relevance scores is based on TF-IDF weights.