S. Tanimoto，T. Konosu, M. Iwashita, S. Matsui, Y. Seki, H. Sato, A. Kanai: Risk Assessment Considering Configuration of Hybrid Cloud Computing, Advances in Networks, Security and Communications: Reviews (Sergey Y. Yurish ed.), IFSA, pp. 171-185, 2017

岩下基著，「データ仮説構築　-データマイニングを通して-」，近代科学社，2017年

岩下基著，「システム方法論　-システム的なものの見方・考え方-」，コロナ社，2014年

T. Kurosawa, D. Bolduc, M. Ben-Akiva, A. Inoue, K. Nishimatsu, M. Iwashita: Demand Analysis by Modeling Choice of Internet Access and IP Telephony, Implementation and Integration of Information Systems in the Service Sector (J. Wang ed.), IGI International, pp. 317-342, 2012

岩下基著，「情報通信工学」，共立出版，2012年

２０１０年４月以降（査読ジャーナル論文：国際会議は除く）

- Yutaka Iwakami, Hironori Takuma, Motoi Iwashita: Solving a restriction of Bayesian network in giving domain knowledge by introducing factor nodes, International Journal of Business Intelligence and Data Mining (IJBIDM), Inderscinece publishers, Vol. 20, No. 4, pp. 377-393, 2022

- Teruo Endo, Shigeaki Tanimoto, Motoi Iwashita, Toru Kobayashi, Hiroyuki Sato, Atsushi Kanai: Risk Assessment Quantification for Bring your Own Device Based on Practical Viewpoints, International Journal of Service and Knowledge Management (IJSKM), International Institute of Applied Informatics (IIAI), Vol. 6, No. 1, IJSKM678, 2022

- Yutaka Iwakami, Hironori Takuma, Motoi Iwashita: Analyzing Enterprise Attribute-Development KPIs/KGIs by Bayesian Network-Leveraging LDA, International Journal of Project Management and Productivity Assessment, IGI Global, Vol. 9, Is. 2, pp. 48-67, 2021

- Motoi Iwashita: A Framework of Matching Algorithm for Influencer Marketing, Artificial Intelligence Research, The Review of Socionetwork Strategies, Springer, Vol. 14, No. 2, pp. 227-246, 2020

- Yutaka Iwakami, Hironori Takuma, Motoi Iwashita: Improving Matching Process with Expanding and Classifying Criterial Keywords leveraging Word Embedding and Hierarchical Clustering Methods, The Review of Socionetwork Strategies, Springer, Vol. 14, No. 2, pp. 193-204, 2020

- Yutaka Iwakami, Hironori Takuma, Motoi Iwashita: Properly initialized Bayesian Network for Decision Making leveraging Random Forest, Artificial Intelligence Research, Sciedu Press, Vol. 9, No. 1, pp. 36-45, 2020

- Motoi Iwashita, Shigeaki Tanimoto, Kana Tsuchiya: Highly Secure Transaction Mechanism for Video Affiliate Services, The Review of Socionetwork Strategies, Springer, Vol. 14, No. 1, pp. 77-91, 2020

- Shgeaki Tanimoto, Chise Nakamura, Motoi Iwashita, Shinsuke Matsui, Takashi Hatashima, Hitoshi Fuji, Kazuhiko Ohkubo, Junichi Egawa, Yohsuke Kinouchi: Secure architecture of visible light communication system for market expansion, IIAI International Journal of Service and Knowledge Management, International Institute of Applied Informatics, Vol. 3, No. 2, pp.35-47, 2019

- Tenzin Kunga, Masataka Sano, Motoi Iwashita: Novel approaches to improving the quality of the clinical trial system through a directional comparative study, Information Engineering Express, Information Institute of Applied Informatics, Vol. 5, No. 2, pp. 46-56, 2019

- Motoi Iwashita: A Proposal of Matching Algorithm for New Type of Advertisement Business Model, 23rd International Conference on Knowledge-Based and Intelligent Information & Engineering Systems, Procedia Computer Science, Elsevier, Vol. 159, pp. 1966-1975, 2019

- Motoi Iwashita: Transitional Method for Identifying Improvements in Video Distribution Services, International Journal of Networked and Distributed Computing, Atlantis Press, Vol. 7, Is. 4, pp. 141-148, 2019

- Ken Nishimatsu, Akiya Inoue Miiru Saito, Motoi Iwashita: Choice Behavior Analysis of Internet Access Services Using Supervised Learning Models, Big Data, Cloud Computing, and Data Science Engineering; Studies in Computational Intelligence, Springer, Vol. 844, pp.99-114, 2019

- M. Iwashita, S. Tanimoto, K. Tsuchiya: Framework of highly secure transaction management of affiliate services of video advertising, Knowledge-Based and Intelligent Information & Engineering Systems, Elsevier, Vol. 126, pp. 1802-1809, 2018

- 谷本茂明，上田祥仁，岩下基，畑島隆，川村亨，佐藤周行，小林透，金井敦: マイナンバーのセキュアな運用モデルの提案，電子情報通信学会論文誌D, Vol. J101-D, No. 10, pp. 1443-1447, 2018

- M. Iwashita, Y. Shirai: Requirements and System Architecture of Tour Planning for Local Revitalization, Int. J. Smart Computing and Artificial Intelligence, International Institute of Applied Informatics, Vol. 2, No. 1, pp. 43-57, 2018

- S. Tanimoto, S. Totsuka, M. Iwashita, Y. Seki, H. Sato, A. Kanai: Rsik assessment of privacy protection of information literacy beginners in big data era, Advances in Networkd-based Information Systems, Springer, Lecture Notes on Data Engineering and Communications Technologies, 7, pp. 737-749, 2017

- M. Iwashita, A. Inoue, T. Kurosawa, K. Nishimatsu: Microarea selection method for broadband infrastructure installation based on service diffusion process, Int. J. Advances in Telecommunications, IARIA, Vol. 10, No. 1&2, pp. 60-71, 2017

- M. Iwashita, A. Inoue, T. Kurosawa, K. Nishimatsu: Efficient microarea selection algorithm for infrastructure installation of boradband services, Int. J. Computational Intelligence Studies, Inderscience Publishers, Vol. 5, Nos. 3/4, pp. 219-236, 2017

- M. Iwashita: A Method of Identifying Improvement Factors for Tablet Services, Information Engineering Express, International Institute of Applied Informatics, Vol. 2, pp. 27-36, 2016

- M. Iwashita, S. Tanimoto: Service and Billing Management Method for ICT Services, International Journal of Software Innovation, IGI Publishing, Vol. 4, Is. 2, pp. 1-16, 2016

- M. Iwashita, A. Inoue, T. Kurosawa, K. Nishimatsu: Efficient method to determine microarea with high potential demand for broadband services, Knowledge-Based and Intelligent Information & Engineering Systems, Elsevier, Vol. 60, pp. 1728-1737, 2015

- M. Iwashita: A Framework for a Posteriori Method of Transitional Analysis to Diffuse ICT Services Based on Text Mining, Advanced Techniques for Knowledge Engineering and Innovative Applications, Communications in Computer and Information Science, Vol. 246, pp. 39-55, 2013

- S. Tanimoto, C. Murai, Y. Seki, M. Iwashita, S. Matsui, H. Sato, A. Kanai: A Study of Risk Management in Hybrid Cloud Configuration, Computer Information Science, Vol.493, pp. 247-257, 2013

- 谷本茂明, 関良明, 岩下基, 佐藤周行, 金井敦: ビッグデータを活用したサービスに関するリスクアセスメント, 電子情報通信学会論文誌A, Vol.J96-A, No. 4, pp. 189-194, 2013

- M. Iwashita, A. Inoue, T. Kurosawa, K. Nishimatsu: Micro Area Selection Framework for ICT Infrastructure Difussion based on Commuting Flow, International Journal of Computer & Information Science, Vol.13, No. 2, pp. 10-19, 2012

- M. Iwashita: A Framework of Time-Series Analysis Method for ICT Service Diffusion using Textual Data, Advances in Knowledge-Based and Intelligent Information and Engineering Systems pp. 2070-2079, 2012

- M. Iwashita, M. Tsujino: Path management method for large-scale MPLS networks from viewpoint of operational cost factors, International Journal of Internet Technology and Secured Transactions, Vol. 4 Nos. 2/3 pp. 105-120, 2012

- A. Inoue, Y. Takano, T. Kurosawa, M. Iwashita, K. Nishimatsu: Mobile-Carrier Choice Modeling Under Competitive Conditions, Journal of Information Processing, Vol. 20 No. 3 pp. 585-591, 2012

- M. Iwashita, S. Shimogawa, K. Nishimatsu: Semantic analysis and classification method for customer enquiries in telecommunication services, Engineering Applications of Artificial Intelligence, International Journal of Intelligent Real-Time Automation, Vol. 24, No. 8, pp. 1521-1531, 2011

- T. Kurosawa, S. Shimogawa, M. Iwashita, S. Kouno: An Analysis of the Relationship between a Speed of the Internet Access and Internet Access Line Switching, Knowledge-Based and Intelligent Information and Engineering Systems, LNAI, Vol.6883, pp. 275-284, 2011

- M. Iwashita: A Consideration of an Area Classification Method for ICT Service Diffusion, Knowledge-Based and Intelligent Information and Engineering Systems, LNAI, Vol. 6883, pp.256-264, 2011

- T. Kurosawa, K. Nishimatsu, M. Iwashita, A. Inoue, M. Ben-Akiva, D. Bolduc: Service-Choice Behavior Modeling Constructed with Multiple Decision-Making Processes, International Journal of Services, Economics and　Management, Vol. 3, No. 3, pp. 301-322, 2011

- T. Kurosawa, D. Bolduc, M. Ben-Akiva, A. Inoue, K. Nishimatsu, M. Iwashita: Demand Analysis by Modeling Choice of Internet access and IP Telephony, Int. J. of Information Systems in the Service Sector, Vol. 3, No. 3, pp. 1-26, 2011

- T. Kurosawa, H. Kawano, M. Iwashita, S. Shimogawa, S. Kouno, A. Inoue: Econometric Approach for Broadband Market in Japan, Knowledge-Based and Intelligent Information and Engineering Systems, LNAI, Vol. 6728, pp. 225-234, 2010

- H. Kitada, T. Miyoshi, A. Shiozu, M. Tsujino, M. Iwashita, H. Yoshino: General Flow Characteristics of P2P Streaming Considering Impact to Network Load, Computer and Information Science 2010, Studies in Computational Intelligence, Vol. 317 pp. 73-83, 2010

- M. Iwashita, K. Nishimatsu, T. Kurosawa, S. Shimogawa: Broadband Demand Analysis for Network Building, The Review of Socionetwork Strategies, Vol. 4 pp. 17-28, 2010