Text Document Clustering Using Chaotic Northern Goshawk Optimization with K-means Algorithm

Abstract

Text document clustering (TDC) is becoming the most famous technique in various real-world applications like information retrieval, data mining, and so on. The TDC poses a significant challenge in these applications as the volume of data collection continues to grow daily. In clustering, the metaheuristics algorithms are used for solving the NP-hard problem and to enhance the model performance. Once the solution space is maximum, traditional approaches are incapable of identifying the solution in minimal time. In this research, the Chaotic Northern Goshawk Optimization (CNGO) with K-means Clustering algorithm is proposed for TDC. Initially, three benchmark datasets such as Reuters-21578, 20-Newsgroup and BBC Sport are used to estimate the performance. Then, the pre-processing techniques such as tokenization, stop word removal, stemming and lemmatization are used for data denoising. The word2vec feature extraction technique is used for converting the document into numerical vectors and finally, the CNGO with K-means is used for TDC. The effectiveness of the proposed method is estimated by utilizing various metrics and it attains the accuracy of 98.36%, 96.26% and 97.36% by using 20-Newsgroup, Reuters-21578 and BBC datasets when compared to competitor approaches like Salp Swarm Algorithm (SSA) and Rider Optimization-based Moth Search Algorithm (Rn-MSA).