Term truncation, Management Information Sys

Assignment Help:

Term Truncation 

Term truncation is one of the devices adapted to facilitate retrieval of terms with a common root containing common fragments. Incorporation of truncation device makes it possible to search for a portion Of the term only. There are three methods of truncation: i) the beginning of the term-left truncation, ii) at the end of term-right truncation, iii) simultaneous right and left truncation. By left truncation, the term will be retrieved with the substitution of any prefix. By right truncation, the term will be retrieved with any suffix. Simultaneous left and right truncation allows simultaneous substitution of prefix and suffix to a term fragment or term root. Truncation enables retrieval of references with singular or plural forms, different tenses, etc. The usefulness of simultaneous left and right truncation can he illustrated with the following example, if a user is interested in some specified correlation's, the truncated term polymers where the star (*) indicates truncation will retrieve polymers, polymerisation, etc., whereas the left truncation (* polymers) will retrieve; copolymers, etc. Thus, it may be said that the truncation device is a very helpful tool that enables the user great facilities to search for word stems as and when the nature of the query demands. 

Two types of logic is used in the formulation of search strategy. They are Boolean approach and Weighted approach. Boolean logic utilises the operators AND, OR and. NOT, while suitable weights are assigned to the search terms of the profile so that the search result may be made more relevant to the requirement of the query formulated by the user and as perfected by the information specialist. This technique is also commonly used in SDI Systems to improve the system performance. For example let us consider a query: 

MARC (5) COMPUTER (4) CATALOGUE (1) ORDER (I) ACQUISITION (I) and suppose the threshold weight for the system is set at 5, then items including MARC (5) COMPUTER CATALOGUE (4+1), COMPUTER ACQUISITION (4+1), etc., would be retrieved. However, items including computer (4) order, acquisition (1+1) and so on would not be retrieved. This technique will naturally enhance relevancy factor and leads to better results in so far as user satisfaction is concerned. 

Notification of SDI and Feedback analysis forms the most important aspect of SDI service. The user's evaluation of SDI output results give information as to what extent the search terms or the logic that have been used have retrieved relevant or irrelevant information. An active interest and personal contact between the user and the information specialist is of great importance to reach a fast convergence for the modifications of the profiles. This enables the profiles being checked and adjusted on the basis of users' evaluation.  


Related Discussions:- Term truncation

Operational aspects of sdi, Operational Aspects of SDI   Once the polic...

Operational Aspects of SDI   Once the policy aspects regarding the design of an SDI system are decided by the competent authority, appropriate decisions regarding components ar

Selection tools - books, SELECTION TOOLS: Information Resources  Devel...

SELECTION TOOLS: Information Resources  Development is an  important activity  of any library or information centre as it ensures efficient and effective functioning of librar

Banks, 1. Why do the banks borrow funds, besides accepting deposits? Discus...

1. Why do the banks borrow funds, besides accepting deposits? Discuss in detail the various sources from where banks can borrow funds within India.

Explain the characteristics of nonverbal communication, Question: (a) W...

Question: (a) Words are the vessels that carry most of our ideas to others but, a listener may understand the meaning in a way that is completely different from its intended m

Case study: viruses, Case Study: Viruses Robert Morris is the son of a...

Case Study: Viruses Robert Morris is the son of a well respected computer expert. Robert inserted a virus in a computer network that impacted negatively on over 6000 users. He

Search engine optimisation and pay per click marketing, Question: Diffe...

Question: Differentiate between Search Engine Optimisation and Pay per click marketing. One of the fundamental shifts in Marketing in recent years has been the increased foc

Management information system and a decision support system, Question 1: ...

Question 1: A bank is in the process of reviewing its IT Systems. It currently hosts a number of legacy systems which supports different aspects of its business functions namel

Segways, What benefits is Segway enjoying by outsourcing its information in...

What benefits is Segway enjoying by outsourcing its information infrastructure and services? 2. What benefits can a company gain by managing its own information infrastructure and

Management information system for library and information , MANAGEMENT  I...

MANAGEMENT  INFORMATION SYSTEM FOR  LIBRARY AND INFORMATION  Users Regular members who have borrowing privileges and use the library well. Visitors who are not regular but use

MIS help on timed assignment, I have 50 questions to answers in 1 hour and ...

I have 50 questions to answers in 1 hour and 30 mins, is there anyone that can help?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd