A bibliometric and network analysis of the field of computational linguistics

The ACL Anthology is a large collection of research papers in computational linguistics. Citation data was obtained using text extraction from a collection of PDF files with significant manual post-processing performed to clean up the results. Manual annotation of the references was then performed to complete the citation network. We analyzed the networks of paper citations, author citations, and author collaborations in an attempt to identify the most central papers and authors. Also, we propose an improved method for comparing different measures of impact based on correlation. The analysis includes general network statistics, PageRank, metrics across publication years and venues, impact factor and h-index, as well as other measures.