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methods of survey and study some methods of collecting information about the organisation and about the information requirement of potential
online search services online search services also known as online systems suppliers search services or online service spinners are responsible
citation indexes citation indexing is one of the means of producing an effective index by the effective use of computer for arranging and
individual user interestsmore specific information about users could cover the following subjects and associated interest - eg specific subjects
kwoc key word-out of context index a kwoc index extracts the keyword from the title and the keyword is used as a separate heading with title
user groupsthe next step would be to identify more specifically the potential user groups this may be done on the basis of interviews
kwic key word in context index a kwic index is the most common type of natural language indexes it has become popular because it is
printed indexes one of the first applications of the computer to information retrieval was in the production of printed indexes computers were
term truncation term truncation is one of the devices adapted to facilitate retrieval of terms with a common root containing common fragments
searching the sdi system against user profilesas has been mentioned earlier the user profile attempts to represent not only the users subject
information resources and selection principle the main objective of a library can be stated as to provide for the information needs of a given
institutional characteristics an approach to an understanding of the fields of interest of individuals to be served and of the organisation as
components of sdi system to be operational the sdi system must have the following components built into it i users represented by
definition of sdi hp luhn in one of this papers published in 1961 defined sdi service as that service within an organisation which concerns
computerised information services having understood the basic aspects of information retrieval let us try to understand the nature of
retrieval capabilities the third aspect of importance in any information storage and retrieval system relates to its retrieval capabilities
storage the second aspect of information retrieval is storage information retrieval systems may use the computer itself to store both the
indexingindexing is the process of allocating index terms or keys to a record or document represented in an information retrieval system
information retrieval in the present day context information retrieval systems have become synonymous with computers although paper-based
research and developmentall intellectual activities consciously pursued and systematically completed generate useful information research also
categorisation of information services in computer environment modern libraries and information centres provide a variety of documentation
knowledgethe dictionary definition of knowledge is organised body of information or the comprehension and understanding consequent on having
computerised information systemsthe main purpose of information services be they libraries corporate records global information networks or
categories of information in social sciencesit would be useful particularly in social sciences to group information into three categories bull
usage in the context of library and information servicesin library and information science there is however no need for making such distinction