The index of a search engine can be thought of as analogous to the stars in [the] sky. What we see has never existed, as the light has traveled different distances to reach our eye. Similarly, Web pages referenced in an index were also explored at different dates and they may not exist any more.
The WWW project merges the techniques of information retrieval and hypertext to make an easy but powerful global information system. The project started with the philosophy that much academic information should be freely available to anyone. It aims to allow information sharing within internationally dispersed teams, and the dissemination of information by support groups.
Information retrieval consists of four main stages: Identifying the exact subject of the search; Locating this subject in a guide which refers the searcher to one or more documents; Locating the documents; Locating the required information in the documents.
The retrieval process begins when a lack of information shows itself in a human mind and the decision is taken to find out if this information has been discovered and published
'Information management' is a term that is preferred to 'information retrieval' by System Development Corporation. Information management is defined as the establishment and utilization of effective procedures for controlling the generation, processing, flow, and use of information.
Brian Campbell Vickery was an enormously influential figure in the field of classification and information retrieval, a powerful force in the development of faceted classification and retrieval theory, and a prolific writer and researcher throughout his life.
Biological classifications have two major objectives: to serve as a basis of biological generalizations in all sort of comparative studies and to serve as a key to an information storage system... Is the classification that is soundest as a basis of generalizations also most convenient for information retrieval? This, indeed, seems to have been true in most cases I have encountered.
An information retrieval system will tend not to be used whenever it is more painful and troublesome for a customer to have information than for him not to have it. Where an information retrieval system tends not to be used, a more capable information retrieval system may tend to be used even less.
The task of keeping up with scientific literature is becoming an impossible one and is in turn leading to inefficiency and to a certain amount of frustration in scientific research and in the application of science.
But do you know that, although I have kept the diary [on a phonograph] for months past, it never once struck me how I was going to find any particular part of it in case I wanted to look it up?|
Information retrieval is now an accepted part of the new discipline of information science and technology... I have concentrated on the field with which I am most familiar, the problems of bibliographic description and subject analysis.
In 1958 the classification ideas in it were felt to controversial, needing to be championed. A few years before, the {[w|Classification Research Group}} had issued a memorandum proclaiming "the need for a faceted classification as the basis of all methods of information retrieval'. As part-author of this memorandum, I must now judge the claim to have been too bold, even brash.