Automatic Taxonomy Expansion in IndoWordNet With special reference to Assamese WordNet

Abstract

quotThe task of automatic taxonomy expansion plays a significant role in natural language newlineprocessing (NLP), as it helps to overcome the issue of low coverage in taxonomies. By newlineeffectively performing this task, various NLP applications like information retrieval, text newlineclassification, and natural language understanding can achieve better accuracy and newlineefficacy. While numerous studies have explored the challenges of automatic taxonomic newlineexpansion, the methods and techniques used in these studies may be less effective for newlinetaxonomies like WordNet due to their unique structure and organization. newline newlineWordNet is a widely used lexical taxonomy of concepts in a language that comprises not newlineonly a hierarchical organization of concepts but also information regarding other newlinesemantic relations such as synonymy, meronymy, and troponymy among the concepts, newlinewhich distinguish it from other taxonomies. The creation of WordNets typically newlineinvolves manual methods; however, currently, a substantial number of WordNets are newlinegenerated through the expansion approach, such as those included in Indo-WordNet. newlineDespite its widespread usage, creating WordNet is challenging, with two significant newlineproblems being limited coverage and missing relations. The manual creation process of newlineWordNets can result in limited coverage, while the use of the expansion approach for newlinecreating WordNets may result in missing relations between concepts and words. While newlineprevious studies have sought to address the issue of limited coverage, the problem of newlinemissing relations has yet to receive adequate attention. Furthermore, while automatic newlinetaxonomy expansion approaches have been proposed to resolve the issue of limited newlinecoverage, their effectiveness for WordNet expansion remains in question. The primary newlinereason is that the expansion of WordNet requires not only inserting new concepts newline(attach operation) but also extending existing ones (merge operation). However, most existing studies on taxonomy expansion only focus on the attach operation. newlineFurthermore, WordNet taxonomies, especially t