Embodiments of the present invention are generally related to systems, methods, computer readable media, and other means for extracting entities, determining the semantic relationships among the entities and generating knowledge. More particularly, some embodiments of the present invention are directed to generating a hypothesis and/or gaining knowledge by automatically extracting semantic relationships from electronic documents stored at remote databases, which are accessed over the Internet. Some embodiments of the present invention also include textual categorization and new approaches and algorithms for solving the problems of relationship extraction, computing semantic relationships and generating hypotheses.