Information retrieval system (irs) , Management Information Sys

Definition of an Information Retrieval System (IRS) 

According to Sparck Jones an Information Retrieval System is a set of rules and procedures, for performing some or all of the following operations: 

  1. Indexing (or constructing of representations of document). 
  2. Search formulation (or constructing of representations of information needs). 
  3. Searching (or matching representations of documents against representations of needs). 
  4. Index language construction (or generation of rules of representation). 

In the foregoing definition, the basic functions of a computer-based storage and retrieval system are implied in general terms. But, in practice a large number of variants are often encountered in adapting a system to the user's requirements and methods used. 

Let us also examine another definition. According to Kowalski "An information retrieval system is a system that is capable of storage, retrieval and maintenance of information. Information in this context can be composed of text (including numeric and date data), images, audio, video and other multi-media objects. Although the form of an object in an IRS is diverse, the text aspect has been the only data type that lent itself to full functional processing. Other data types have been treated as highly informative sources but are primarily linked for retrieval based upon search of the text". [Kowalski, 1997]. Kowalski also states that an IRS consists of a software program that facilitates a user in finding the information he needs. The system may use standard computer hardware to support the search function. According to him, the success of an IRS depends on how well it can minimise the expenditure for a user to find ' the needed information. 

Posted Date: 10/24/2012 3:09:02 AM | Location : United States







Related Discussions:- Information retrieval system (irs) , Assignment Help, Ask Question on Information retrieval system (irs) , Get Answer, Expert's Help, Information retrieval system (irs) Discussions

Write discussion on Information retrieval system (irs)
Your posts are moderated
Related Questions
Discuss three (3) major challenges that typically users face in building and/or using information systems AND elaborate the ways to overcome those challenges

BENEFITS OF MANAGEMENT INFORMATION SYSTEM An efficient Management Information System has many advantages. Some of them are given below:  Management Information System qu


Reuters Group -Providing Information and Decision Support on the Internet If information is power, then Reuters Group is one of the chief sources of that power. It is also one of t

Question 1: (a) Explain in details the 5 main E-Business Models. (b) Explain the different factors to be taken into consideration in order to manage an E-Business infrastruc

powepoint

Question: a) Discuss the different categories of e-commerce and the benefits they bring to the organisation. b) Identify five applications of e-commerce and e-business c

what is the importance of mis in decision making?

Publishing agencies fall under three broad categories: i)  Trade Publishing Houses /Companies, Booksellers and Others; they publish  books of all varieties;  periodic

Structure of an information System An information system may be viewed as indicated in the Figure 1. Information systems accept (input), store (in files or database), and displ