★Full name: 2025 9th International Conference on Natural Language Processing and Information Retrieval (NLPIR 2025) ★Abbreviation: NLPIR 2025 ★Website: www.nlpir.net ★Date：December 14-16, 2025 ★Held in: Kyushu University, Fukuoka, Japan ★Call for papers★ Fundamentals of data science, data & text mining, interactive systems, information mining and psycholinguistic Resources for basic NLP tasks (word segmentation, tagging, stemming, parsing and syntactical analysis, corpus-based language engineering, named entity recognition, syntactic analysis, semantic analysis, discourse analysis, speech recognition, speech synthesis, etc.) Automated knowledge aquisition and representation Natural language understanding Topic recognition and topic tracking, subject indexing Event and anomaly detection - Sentiment analysis Opinion, personality and emotion detection in social media Author identification and plagiarism detection Document summerisation and identification Similarity analysis, clustering, hierarchic clustering Methods for Classification and Categorisation Visualisation of NLP and IR results Ontologies, knowledge representation, semantic web technologies Ontology generation, merging and verification methods Diachronic corpora and temporal reasoning over knowledge basis Graph- and deep-learning-based methods of NLP and IR Interactive, dynamic as well as contextual and personalised IR Adversarial and cross language information retrieval Methods and systems of automatic machine translation Query Expansion IR result evaluation and relevance feedback Social and multimedia IR Methods and analyses for statistical networks, small world graphs, dynamic graphs and in particular co-occurrence graphs Methods based on Swarm Intelligence and other natural inspired methods Decentralised knowledge representation, search and IR Collaborative information filtering Self-organisation and –maintenance of information in the WWW Aspects of high performance text analysis Propagation and diffusion of information, super popular content ★ Publication Accepted papers will be published in NLPIR 2025 International Conference Proceedings Series, indexed by Ei Compendex, Scopus, etc. **NLPIR 2018-2024 ACM Conference Proceedings have been online in ACM Digital Library, and indexed by Ei Compendex and Scopus already. NLPIR 2024 ACM Digital Library (ISBN: 979-8-4007-1738-3) NLPIR 2023 ACM Digital Library (ISBN: 979-8-4007-0922-7) NLPIR 2022 ACM Digital Library (ISBN: 978-1-4503-9762-9) NLPIR 2021 ACM Digital Library (ISBN: 978-1-4503-8735-4) NLPIR 2020 ACM Digital Library (ISBN: 978-1-4503-7760-7) NLPIR 2019 ACM Digital Library (ISBN: 978-1-4503-6279-5) NLPIR 2018 ACM Digital Library (ISBN: 978-1-4503-6551-2) ★Submission★ 1. Submitted papers should be prepared according to the paper template and the length should be at least 8 pages (Single column) 2. The submitted paper is requested to be written in complete English. Paper Template for Docx: https://nlpir.net/template.docx Paper Template for LaTex: https://nlpir.net/LaTeX.zip *Electronic Submission System Link: https://www.zmeeting.org/submission/NLPIR2025 You will receive the submission confirmation email from the conference email after around 2 working days. If you haven't received it, please contact us as soon as possible. (Email: nlpir@asr.org) More details about submission, please visit at https://nlpir.net/sub.html ★Conference Venue Kyushu University, Fukuoka, Japan Address: 744 Motooka Nishi-ku Fukuoka 819-0395 ★★Contact us Ms. Sophie Chen (Conference Secretary) Email:nlpir@asr.org Conference Website: www.nlpir.net