1. T. Warren, Microsoft lays off journalists to replace them with AI (2020). Retrieved 19 Aug 2020 from https://www.theverge.com/2020/5/30/21275524/microsoft-news-msn-layoffs-artificial-intelligence-ai-replacements
2. H.M. Hasan, F. Sanyal, D. Chaki, Md. Ali, An empirical study of important keyword extraction techniques from documents (2017). https://doi.org/10.1109/ICISIM.2017.8122154
3. Merriam Webster. Archived from the original on 27 Feb 2015. Retrieved 17 Oct 2019
4. J.J. Hopfield, Neural networks and physical systems with emergent collective computational abilities. Proc. Natl. Acad. Sci. U.S.A. 79(8), 2554–2558 (1982). Bibcode: 1982 PNAS 79.2554H. PMC: 346238, PMID: 6953413. https://doi.org/10.1073/pnas.79.8.2554
5. J. Pearl, Heuristics: Intelligent Search Strategies for Computer Problem Solving (Addison-Wesley Pub. Co., Inc., Reading, MA, US, 1984), p. 3. OSTI 5127296