“The problem of directing a user to stored information, some of which may be unknown to him, is the problem of "information retrieval"… In information retrieval, the addressee or receiver rather than the sender is the active party. Other differences are that communication is temporal from one epoch to a later epoch in time, though possibly at the same point in space; communication is in all cases unidirectional; the sender cannot know the particular message that will be of later use to the receiver and must send all possible messages; the message is digitally representable; a "channel" is the physical document left in storage which contains the message; and there is no channel noise because all messages are presumed to be completely accessible to the receiver. The technical goal is finding in minimum time those messages of interest to the receiver, where the receiver has available a selective device with a finite digital scanning rate.”

—  Calvin Mooers

Calvin Mooers (1950). " Information retrieval viewed as temporal signaling http://www.mathunion.org/ICM/ICM1950.1/Main/icm1950.1.0565.0576.ocr.pdf#page=8". Proceedings of the International Congress of Mathematicians. Vol. 1, S.572-573

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Calvin Mooers5
American computer scientist 1919–1994

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Context: In the face of almost infinite useful knowledge, we have adopted the strategy of "information regeneration rather than information retrieval."... most importantly, you should be able to generate the result you need even if no one has ever done it before you—you will not be dependent on the past to have done everything you will ever need in mathematics.

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