A Fuzzy Logic Model of Document Usage in Decision Problem Resolution
Lukman Adewale Akanbi *
Department of Computer Science and Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
The degree of usefulness of a document to the resolution of a decision problem is not only a function of terms in the document index matching terms in the user query. It is also a function of the user’s ability to express the problem in query terms that will facilitate document retrieval. This user’s ability is dependent on the experience as well as cognitive capacity of the user. A fuzzy logic model for capturing document degree of usefulness in the resolution of decision problem is presented in this study. The model is based on three parameters namely: (i) number of similar problems handled by the user, (ii) number of years the user had spent in the establishment and (iii) user’s direct rating of the document. The output of the fuzzy inference process is a document degree of usefulness to the resolution of decision a problem. The model has been integrated into a decision support system developed in another study which produced a platform for searching for relevant documents based on their previous usage.
Keywords: Document usage, fuzzy logic, document index, usage modelling, decision problem