A set theoretic data structure and retrieval language

@article{Hershey1972AST,
  title={A set theoretic data structure and retrieval language},
  author={W. R. Hershey and Carol H. Easthope},
  journal={SIGIR Forum},
  year={1972},
  volume={7},
  pages={45-54}
}
This paper describes a data structure and retrieval program for general large scale information systems. Retrieval operations are done by means of set theoretic operations. The general structure of the data structure and retrieval program are outlined here, and the retrieval language is briefly explained with accompanying examples. The major components of the data structure are discussed in detail: The directory, the dictionary, and the data itself. Limitations of the system and plans for… Expand
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