The Scope of Part of Speech Tagging: A Bibliometric Study

POS tagging is a process of identifying the part of speech of a word in a text by considering the context in which it appears. To better understand the intellectual framework of POS tagging research, we conducted a thorough analysis of POS literature available in the Web of Science repository. By using co-word, co-citation, and social network analysis techniques on 1,656 relevant articles and 69,357 cited references, we were able to identify the main research topics and research streams related to POS tagging. We have explained each of the research streams in detail, along with an informative visualization that shows the evolution of research streams over time and the intellectual structure. After that, we have provided a comprehensive discussion of the findings, highlighting the current hotspots and future prospects in POS tagging research.