★Full name: 2021 5th International Conference on Natural Language Processing and Information Retrieval ★Abbreviation: NLPIR 2021 ★Website: http://www.nlpir.net/ ★Date：December 17-20, 2021 ★Held in: Sanya, China ★Call for papers★ The conference topics include, but are not limited to: * Natural language understanding * Fundamentals of data science, data & text mining, interactive systems, information mining and psycholinguistic * Automated knowledge aquisition and representation * Topic recognition and topic tracking, subject indexing * Visualisation of NLP and IR results More Topics, please visit at http://nlpir.net/topics.html ★ Publication: Accepted papers will be published by International Conference Proceedings Series by ACM (ISBN: 978-1-4503-8735-4), which will be submitted for ACM Digital Library inclusion, Ei Compendex, Scopus index, etc. All accepted papers in the previous conferences have been included in ACM Digital Library and indexed by Ei Compendex and Scopus already. ★Submission★ 1. Full paper (publication and presentation) 2. Abstract (presentation only) For full paper and abstract, please upload it to the Electronic Submission System (.pdf) (http://www.easychair.org/conferences/?conf=nlpir2021) Send your enquiry to nlpir@asr.org More details about submission, please visit at http://nlpir.net/submission.html ★Conference Venue: Tangla Yaxiu Hotel Address: No.223 Xincheng Road, Sanya, 572000, Hainan, China ★★Contact: Ms. Mirror Ding / Ms. (Conference Secretary) Email: nlpir@asr.org Tel: +86-13258111117