Social Semantics and Similarities from User-generated Keywords to Information Retrieval: A Case Study of Social Tags in Marine Science

Praveenkumar Vaidya; Harinarayana N. S.

doi:10.14429/djlit.38.1.10969

Praveenkumar Vaidya Tolani Maritime Institute, Induri, Talegaon-Chakan Road, Pune 410507
Harinarayana N. S. Department of Studies in Library and Information Science,University of Mysore, Mysuru - 570 006

DOI: https://doi.org/10.14429/djlit.38.1.10969

Keywords: Web 2.0, Folksonomies, Social tags, TF-IDF, Jaccard similarity, Coverage ratio, Information retrieval, Knowledge organisation

Abstract

Of late, social tagging has become popular trend in information organisation. In context of digital resources the tags assigned by users also play vital role in information retrieval. For information discovery the ‘terms’ used to retrieve the results also depend upon the ‘relevancy’ or ‘weightage’ of the keywords. This study investigates ‘relevancy ranking’ of terms used in the full text of the resource. The common words present in both full text of the article and social tags were considered for the study by employing TF-IDF statistical technique and Jaccard similarity test. The results show that it is possible to assign ‘weight’ to keywords for better results and also determine the significant tags assigned by the user. The Jaccard similarity coefficient test adopted to understand the word similarity between full text words of an article and marine social tags. This work reveals the social tags can enrich metadata for information retrieval.

Author Biographies

Praveenkumar Vaidya, Tolani Maritime Institute, Induri, Talegaon-Chakan Road, Pune 410507

Mr Praveenkumar Vaidya, received Masters in Library and Information Science from Karnataka University, Dharwad. He is a research student at the Department of Studies in Library and Information Science, University of Mysore, Mysuru. Presently, working as Librarian at Tolani Maritime Institute, Pune, Maharashtra. His research area include Folksonomies, Social tagging, Metadata and Information retrieval.

Harinarayana N. S., Department of Studies in Library and Information Science,University of Mysore, Mysuru - 570 006

Dr N.S. Harinarayana received PhD in Library and Information Science from University of Mysore, Mysuru, is working as an Associate Professor at the Department of Studies in Library and Information Science, University of Mysore, Mysuru. He teaches the courses Library automation, Information retrieval, and library classification and content organisation. His research area include, metadata and information retrieval, automation and networking and scientometrics.