Information Retrieval Systems (IRSs) based on an ordinal fuzzy linguistic approach present some problems of loss of precision and information when working with discrete linguistic expression domains or when applying approximation operations in the symbolic aggregation methods. In this paper, we present an IRS based on a 2tuple fuzzy linguistic approach which allows us to overcome the problems o...

In this contribution a new interpretation of a symmetrical threshold semantics for a linguistic Information Retrieval Systems (IRS) is presented. It is modeled by means of a new linguistic matching function defined using a 2-tuple fuzzy linguistic approach. It softens the behaviour of symmetrical threshold semantics by processing in a more consistent way the query threshold weights, and in such...

for years, search engines have been considered as one of the most frequently used information seeking tools through the web. efficiency, ease of use and search quality are the main factors for giving precedence over search engines. search quality is assessed based on the concept of page rank which is applied to scoring web documents. the structures designed for linkage among the pages of a site...

This paper addresses the problems that lawyers experience retrieving information from legal-text databases. Traditional access mechanisms of text databases require users to know how information is stored. I will propose a method for index organisation which shields lawyers from the internal storage structures and which allows them to address the legal databases in their own legal terms. The pro...

stemming is the process of finding the main morpheme of a word andit is used in natural language processing, text mining and informationretrieval systems. a stemmer extracts the stem of the words. we can classifypersian stemmers in to three main classes: structural stemmers, dictionarybased stemmers and  statistical stemmers.the precision of structural stemmers is low and the expenses of dictio...

[email protected] ABSTRACT In this paper we describe the functional requirements for research information systems and problems which arise in the development of such a system. Here is shown which problems could be solved by using knowledge markup technologies. In this article one DAML + OIL ontology for Research Information System is offered. The already developed ontologies for researc...

introduction: in spite of the vast improvement in the area of mental health care delivery in this country, very little attention has been given to the mental health registry. considering the absence of an appropriate national mental health registry system in iran, the purpose of the present study was to formulate a preliminary model for mental health registry in iran. methods: in this comparati...