Document (#19941)

Author

Robertson, S.E.
Walker, S.

Title

Some simple effective approximations to the 2-Poisson molde for probabilisitc weighted retrieval

Source

Journal of documentation. 35(1979), S.285-295 (???)

Year

1979

Footnote

Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.345-453.

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