WordNet® is a large lexical database of English. Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept.
Apache Sqoop(TM) is a tool designed for efficiently transferring bulk data between Apache Hadoop and structured datastores such as relational databases.
Free Downloads and Links - ODBMS.ORG was created to serve faculty and students at educational and research institutions as well as OO software developers in the open source community or at commercial companies.
J. Gray. Very Large Data Bases, 7th International Conference, September 9-11, 1981, Cannes, France, Proceedings, стр. 144-154. IEEE Computer Society, (1981)