10. The computer system of claim 9 , wherein the provenance-based-on-document-content-determiner is configured for creating a reversed-in-time graph based on the forward-in-time graph, wherein one or more similarity values are normalized to determine a probability that one document associated with the reversed-in-time graph resulted in another document associated with the reversed-in-time graph.
10. The computer system of claim 9 , wherein the provenance-based-on-document-content-determiner is configured for creating a reversed-in-time graph based on the forward-in-time graph, wherein one or more similarity values are normalized to determine a probability that one document associated with the reversed-in-time graph resulted in another document associated with the reversed-in-time graph. 11. The computer system of claim 10 , wherein the provenance-based-on-document-content-determiner is configured for determining a Markov chain based on the reversed-in-time graph wherein documents associated with the reversed-in-time graph represent nodes of the Markov chain and probabilities determined based on normalized similarity values are associated with transitions between the nodes.