Distributed Systems Group
Graduate School of Social Data Science
Hitotsubashi University

(For detailed information including before 2020, please refer here.)

Journal papers (with peer-review)

  1. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “IoT Data Distribution Method using the Privacy Protection Oriented Ticket-based Access Control”, IPSJ Journal, Vol. 63, No. 12, pp. 1726-1744, 2022.
  2. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Performance and Security Evaluation of Table-based Access Control Applied to IoT Data Distribution Method”, IEICE Transactions on Communications, Vol. E105-B, No. 11, pp. 1390-1399, 2022.

Letters / Short communications (with peer-review)

  1. Yusuke Kitagawa, Kazuyuki Shudo, Osamu Mizuno, Ryohei Banno, “A Study of Using Plumtree Algorithm in Blockchain Networks”, IPSJ Journal of Information Processing, Vol. 31, pp. 387-391, 2023.
  2. Makoto Fukushiro, Yusuke Kitagawa, Ryohei Banno, “A drone-based movable smart remote control for household appliances”, IEICE Communications Express, Vol. 11, No. 12, pp. 778-783, 2022.
  3. Eishin Nagaoka, Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Evaluation for Cloud-based Load Distribution Model in ICSN”, IEICE Communications Express, Vol. 11, No. 8, pp. 509-514, 2022.
  4. Takumu Takada, Ryohei Banno, “Managing trade-off between subscription load and latency in vehicular edge platform”, EAI Endorsed Transactions on Internet of Things, Vol. 8, No. 28, pp. 1-5, April 2022.
  5. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Evaluation of Ticket-based Access Control Method Applied to IoT Data Distribution”, IEICE Communications Express, Vol. 11, No. 3, pp. 148-153, March 2022.
  6. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Evaluation of Table-based Access Control in IoT Data Distribution Method using Fog Computing”, IEICE Communications Express. Vol. 10, No. 10, pp. 822-827, October 2021.
  7. Ryohei Banno, Yusuke Kitagawa, Kazuyuki Shudo, “Exploiting semi-structured overlay networks in blockchain systems”, IEICE Communications Express, Vol. 10, No. 8, pp. 447-450, August 2021.

International Conferences (with peer-review)

  1. Ryohei Banno, Yoshito Watanabe, “Wildcard Topic Management using Bloom Filter in Distributed MQTT Brokers”, IEEE Consumer Communications & Networking Conference (CCNC), January 2025. (accepted)
  2. Yoshito Watanabe, Ryohei Banno, Takashi Miki, “Decentralized Mobile Robot Collaboration in Multi-Vendor Contexts: Service Robot Crowdsourcing via Distributed Ledger Technology”, IEEE World Forum on Internet of Things (WFIoT), November 2024. (accepted)
  3. Takumi Matsumoto, Masaaki Ohnishi, Ryohei Banno, Saneyasu Yamaguchi, “A Study of Generating Exhaustive Cycles in Wireless Mesh Networks for Disaster Notification”, IEEE Region 10 Conference (TENCON), December 2024. (accepted)
  4. Shota Imoto, Yoshito Watanabe, Ryohei Banno, “Ensuring the Legitimacy of Address Information in MANET Using Blockchain”, IEEE Region 10 Conference (TENCON), December 2024. (accepted)
  5. Tomoki Okuda, Masaaki Ohnishi, Ryohei Banno, “A Study of Disaster Notification Wireless Mesh Network Applying Plumtree”, IEEE Region 10 Conference (TENCON), December 2024. (accepted)
  6. Kazuki Utsunomiya, Ryohei Banno, “BERT-based Classification of Four Major Dementias using Twitter Text Data”, IEEE Region 10 Conference (TENCON), pp. 377-380, October 2023.
  7. Yuki Kanno, Ryohei Banno, “A Comparative Study of Estimation of Video Viewer Emotion Using YouTube Video Comments”, IEEE Region 10 Conference (TENCON), pp. 1030-1033, October 2023.
  8. Keisuke Yoshimura, Ryohei Banno, “A Method of Distributing Clients to MQTT brokers Using Server Redirection”, IEEE Region 10 Conference (TENCON), pp. 87-90, October 2023.
  9. Ryohei Banno, “Performance Evaluation of MQTT Communication with Heterogeneous Traffic”, IEEE Annual International Computers, Software & Applications Conference (COMPSAC), pp. 970-971, June 2023.
  10. Kazuyuki Shudo, Tsuyoshi Hasegawa, Akira Sakurai, Ryohei Banno, “Blockchain Network Studies Enabled by SimBlock”, IEEE International Conference on Blockchain and Cryptocurrency (ICBC), pp. 1-2, May 2023.
  11. Eishin Nagaoka, Ryohei Banno, Osamu Mizuno, “Acquisition Delay Time Evaluation of Cloud-based Load Distribution Model in ICSN”, IEICE International Conference on Emerging Technologies for Communications (ICETC), S2-2, November 2022.
  12. Ryohei Banno, Koki Osawa, “Acceleration of MQTT-SN protocol using P4”, IEEE Global Internet Symposium (GI), pp. 16-21, November 2022.
  13. Eishin Nagaoka, Ryohei Banno, Osamu Mizuno, “Implementation and Node Load Evaluation of Cloud-Based Load Distribution Model in ICSN”, Asia-Pacific Network Operations and Management Symposium (APNOMS), pp. 1-4, September 2022.
  14. Yusuke Kitagawa, Kazuyuki Shudo, Osamu Mizuno, Ryohei Banno, “Verification of Applying Plumtree Algorithm for Blockchain Networks”, IEICE International Conference on Emerging Technologies for Communications (ICETC), P3-7, December 2021.
  15. Eishin Nagaoka, Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Cloud-based Load Distribution Model in Information-Centric Networking Wireless Sensor Networks”, IEICE International Conference on Emerging Technologies for Communications (ICETC), C2-1, December 2021.
  16. Ryohei Banno, Toshinori Yoshizawa, “A scalable IoT data collection method by shared-subscription with distributed MQTT brokers”, EAI International Conference on Mobile Networks and Management (MONAMI), pp. 218-226, October 2021.
  17. Ryohei Banno, Koki Ohsawa, Yusuke Kitagawa, Takumu Takada, Toshinori Yoshizawa, “Measuring Performance of MQTT v5.0 Brokers with MQTTLoader”, IEEE Consumer Communications & Networking Conference (CCNC), pp. 1-2, January 2021.
  18. Ryohei Banno, Yusuke Kitagawa, Kazuyuki Shudo, “A Study of Blockchain Systems Exploiting Semi-Structured Overlay Networks with FRT”, IEICE International Conference on Emerging Technologies for Communications (ICETC), N2-1, December 2020.
  19. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Performance Evaluation of Table-based Access Control List Applied to IoT Data Distribution Method using Fog Computing”, IEICE International Conference on Emerging Technologies for Communications (ICETC), E1-1, December 2020. Student Presentation Award

International Conferences (without peer-review)

  1. Yusuke Kitagawa, Kazuyuki Shudo, Osamu Mizuno, Ryohei Banno, “A Study of Applying Plumtree Algorithm for Blockchain Networks”, International Symposium on Advanced Technology (ISAT), p. 253, November 2021.
  2. Eishin Nagaoka, Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Preliminary Experiments for the Realization of ICN based Wireless Sensor Networks”, International Symposium on Advanced Technology (ISAT), pp. 245-246, November 2021.
  3. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “A Study on Access Control Methods in IoT Data Distribution using Fog Computing”, International Symposium on Advanced Technology (ISAT), p. 234, November 2021.

Domestic conferences

  1. Shota Imoto, Yoshito Watanabe, Ryohei Banno, “Securing Address Integrity in MANET; A Blockchain-based Approach”, Technical Report of IEICE, IA2024-32, pp. 19-19, October 2024. Best Poster Award
  2. Takumi Matsumoto, Masaaki Ohnishi, Ryohei Banno, Saneyasu Yamaguchi, “Evaluation of Cycle Path Generation on Wireless Mesh Networks”, Technical Report of IEICE, IA2024-28, pp. 7-7, October 2024.
  3. Keisuke Yoshimura, Ryohei Banno, “Load Balancing Evaluation of MQTT Broker by Heterogeneous Traffic”, Technical Report of IEICE, NS2024-87, pp. 1-5, October 2024. Young Researcher Encouragement Award
  4. Tomoki Okuda, Masaaki Ohnishi, Ryohei Banno, “Distributed Timeslot Control in a Disaster Notification Wireless Mesh Network Applying Plumtree”, Technical Report of IEICE, NS2024-99, pp. 46-51, October 2024. Student Presentation Award
  5. Takumi Matsumoto, Masaaki Ohnishi, Ryohei Banno, Saneyasu Yamaguchi, “A Study on Cycle Path Search based on Wireless Mesh Networks”, Technical Report of IEICE, NS2024-98, pp. 42-45, October 2024.
  6. Ryohei Banno, Yoshito Watanabe, “Managing Wildcard Topics by Bloom Filter in Distributed MQTT Brokers”, Technical Report of IEICE, IA2024-15, pp. 19-26, September 2024.
  7. Kazuki Utsunomiya, Ryohei Banno, “A Study of Disease Name Prediction Using Large Language Models and a Patient Expression Dictionary”, Symposium of Young Researcher Association for NLP Studies, S3-P04, September 2024.
  8. Yuki Kanno, Ryohei Banno, “Estimating Viewer Emotion Using BERT and Large Language Models for Online Video Services”, Symposium of Young Researcher Association for NLP Studies, S2-P18, September 2024.
  9. Weiyan Shen, Ryohei Banno, “A Study on Fake News Detection Using Text and SNS Data”, Symposium of Young Researcher Association for NLP Studies, S2-P19, September 2024.
  10. Keisuke Yoshimura, Ryohei Banno, “Client Allocation Mechanism in Load Balancing for Distributed MQTT Brokers by Power Consumption”, Technical Report of IEICE, IA2023-103, pp. 178-182, March 2024.
  11. Shota Imoto, Yoshito Watanabe, Ryohei Banno, “Ensuring the Legitimacy of Address Information in MANET Using Blockchain”, Technical Report of IEICE, IA2023-85, pp. 66-72, March 2024.1. Tomoki Okuda, Masaaki Ohnishi, Ryohei Banno, “Comparison of Spanning Trees by Applying Plumtree to a Disaster Notification Wireless Mesh Network to Shortest Path Trees”, Technical Report of IEICE, IA2023-75, pp. 7-11, March 2024.
  12. Manaya Takenawa, Ken-ichi Baba, Ryohei Banno, “Verification of Sharding Protocols in SimBlock”, Technical Report of IEICE, IA2023-86, pp. 73-78, March 2024.
  13. Kazuki Utsunomiya, Ryohei Banno, “A Study of Predicting Disease Names by Large Language Models”, Annual Meeting of the Association for Natural Language Processing, P9-1, March 2024.
  14. Yu Yamazaki, Ryohei Banno, “Translation from Standard Language to Dialects Using GPT”, Annual Meeting of the Association for Natural Language Processing, P8-22, March 2024.
  15. Yuki Kanno, Ryohei Banno, “Estimation of Viewer Emotion Using BERT and GPT-3.5 in Online Video Services”, Annual Meeting of the Association for Natural Language Processing, P4-1, March 2024.
  16. Yuki Masumura, Ryohei Banno, “Analysis of the Relationship Between the Amount of Dialogue and Change in Thought in Communication Among Multiple Generative AIs”, Annual Meeting of the Association for Natural Language Processing, P5-12, March 2024.
  17. Weiyan Shen, Ryohei Banno, “A Study of Detection of Fake News Using Multimodal Features”, IEICE General Conference, ISS-A-006, March 2024.
  18. Yusuke Oba, Ryohei Banno, “Detecing Metaphorical Sentences by Masked Language Modeling with BERT”, IEICE General Conference, ISS-P-001, March 2024.
  19. Ryota Kamishima, Yoshito Watanabe, Ryohei Banno, “Verification of the Influence of Faulty Information Towards Reliable Cooperative Localization by Distributed Ledgers”, IEICE General Conference, BPO-2-08, March 2024.
  20. Takumi Matsumoto, Masaaki Ohnishi, Ryohei Banno, “A Study of Exhaustive Cycles Generation Method in Wireless Mesh Networks for Anomaly Notification”, IEICE General Conference, BPO-2-01, March 2024.
  21. Yuta Watanabe, Ryohei Banno, “A Study of Reducing Average Path Lengths by Swapping Routing Tables in Plumtree”, IEICE General Conference, BPO-2-16, March 2024.
  22. Manaya Takenawa, Ken-ichi Baba, Ryohei Banno, “Simulation of Sharding Protocols in SimBlock”, IEICE General Conference, B-7-31, March 2024.
  23. Ryota Kamishima, Yoshito Watanabe, Ryohei Banno, “A Study of Reliability Verification of Location Information by a Distributed Ledger in Collaborative Localization”, Technical Report of IEICE, NS2023-71, October 2023.
  24. Keisuke Yoshimura, Ryohei Banno, “Client Allocation mechanism using server Redirection in a distributed MQTT broker “, Technical Report of IEICE, NS2023-78, October 2023.
  25. Kazuki Utsunomiya, Ryohei Banno, “Classification of Four Major Dementias Using Twitter Posts and Considerations for Medical Applications of Large-Scale Language Models”, Symposium of Young Researcher Association for NLP Studies, S1-P13, August 2023.
  26. Yuki Kanno, Ryohei Banno, “Estimating Viewer Emotion Using Natural Language Processing for Online Video Services”, Symposium of Young Researcher Association for NLP Studies, S5-P14, August 2023.
  27. Ryota Kamishima, Ryohei Banno, “Noise Calibration for Proximate Device-to-Device Position Estimation Using Geomagnetic Sensors in Indoor Environments”, IEICE General Conference, B-15-16, March 2023.
  28. Hiroki Fujii, Ryohei Banno, “A study of gesture-based home appliance control via drone”, IEICE General Conference, B-15-22, March 2023.
  29. Keisuke Yoshimura, Ryohei Banno, “A Method of Distributing Clients to MQTT Brokers Using Server Redirection”, IEICE General Conference, B-16-10, March 2023.
  30. Kazuki Utsunomiya, Ryohei Banno, “A Study on Classification of Four Major Dementia Using Twitter Posts”, Forum on Data Engineering and Information Management (DEIM), 5b-6-5, March 2023.
  31. Yuki Kanno, Ryohei Banno, “Estimation of Video Emotion Using Youtube Video Comments”, Forum on Data Engineering and Information Management (DEIM), 4a-6-1, March 2023.
  32. Mizuki Takahashi, Ryohei Banno, “Identification of Metaphoric Expressions Based on Selectional Restrictions”, Forum on Data Engineering and Information Management (DEIM), 1b-3-1, March 2023.
  33. Yusuke Kitagawa, Kazuyuki Shudo, Osamu Mizuno, Ryohei Banno, “Simulation Evaluation of Multiple Plumtree Application in Blockchain Networks “, Technical Report of IEICE, NS2022-204, March 2023.
  34. Eishin Nagaoka, Ryohei Banno, Osamu Mizuno, “Implementation and Evaluation of Push-based Load Distribution Methods in Information-Centric Networking based Wireless Sensor Networks”, Technical Report of IEICE, IN2022-11, March 2023.
  35. Kotaro Shimo, Dan Mikami, Ryohei Banno, “Clustering baseball pitchers by ratio of pitch types for directing growth”, The Japan Society of Coaching Studies Conference, O-D-2, February 2023.
  36. Eishin Nagaoka, Ryohei Banno, Osamu Mizuno, “Proposal of Push-based Load Distribution Methods in Information-Centric Networking based Wireless Sensor Networks “, Technical Report of IEICE, IA2022-46, pp. 5-10, December 2022.
  37. Yusuke Kitagawa, Kazuyuki Shudo, Osamu Mizuno, Ryohei Banno, “Simulation Evaluation of Plumtree Application in Blockchain Networks”, Technical Report of IEICE, IA2022-19, September 2022.
  38. Ryuta Asanuma, Yohei Fujii, Ryohei Banno, “A study of estimating the uncivil degree of online game users on Twitter”, IEICE General Conference, D-5-9, March 2022.
  39. Makoto Fukushiro, Yusuke Kitagawa, Ryohei Banno, “A Study of Home Appliance Control Using Drones and Smart Remote Control”, IEICE General Conference, B-16-3, March 2022.
  40. Teruyasu Murakami, Ryohei Banno, “Scalable IoT data collection infrastructure using MQTT and distributed KVS”, IEICE General Conference, B-6-8, March 2022.
  41. Kazuki Yamada, Ryohei Banno, “A study of Load Balancing for MQTT-SN using P4”, IEICE General Conference, B-16-1, March 2022.
  42. Eishin Nagaoka, Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Implementation of Cloud-based Load Distribution Model in Information-Centric Networking based Wireless Sensor Networks “, Technical Report of IEICE, IA2021-62, pp. 19-24, March 2022.
  43. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “”, Forum on Data Engineering and Information Management (DEIM), K21-4, February 2022.
  44. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Evaluation of Processing Delay of Authentication and Authorization Infrastructure for IoT Data Distribution System Using Ticket-based Access Control “, Technical Report of IEICE, IA2021-39, December 2021.
  45. Eishin Nagaoka, Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Implementation Issues and Considerations for an Information-Centric Networking Wireless Sensor Networks on Cloud-based Load Distribution Model”, IEICE NWS workshop, NWS-26-7, October 2021.
  46. Ryohei Banno, Toshinori Yoshizawa, “A study of scalable IoT data collection method by shared-subscription with MQTT brokers”, Technical Report of IEICE, IA2021-26, October 2021.
  47. Eishin Nagaoka, Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Node Load Evaluation of Cloud Load Balancing Model in Information-Centric Networking based Wireless Sensor Network”, IEICE Society Conference, B-16-16, September 2021.
  48. Yusuke Kitagawa, Kazuyuki Shudo, Osamu Mizuno, Ryohei Banno, “Verification of Applying Plumtree Algorithm to Blockchain Networks”, Technical Report of IEICE, IA2021-7, June 2021.
  49. Koki Osawa, Tomoya Hibi, Ryohei Banno, “Acceleration of MQTT-SN by using P4”, The 12th Workshop on Wide-Area Sensor Networks and Overlay Networks, March 2021.
  50. Yusuke Kitagawa, Kazuyuki Shudo, Osamu Mizuno, Ryohei Banno, “A study of Broadcasting by Plumtree Algorithm in Blockchain Networks”, The 12th Workshop on Wide-Area Sensor Networks and Overlay Networks, March 2021.
  51. Yuya Miki, Takeshi Kaneko, Ryohei Banno, Kazuyuki Shudo, “A Routing Method for Range Queries Utilizing Detour Routes on Skip Graph”, The 12th Workshop on Wide-Area Sensor Networks and Overlay Networks, March 2021.
  52. Toshinori Yoshizawa, Takumu Takada, Ryohei Banno, “Handling IoT Data by MQTT”, The 12th Workshop on Wide-Area Sensor Networks and Overlay Networks, March 2021.
  53. Koki Osawa, Tomoya Hibi, Ryohei Banno, “Implementation of MQTT-SN Acceleration using P4”, IEICE General Conference, BS-9-1, March 2021.
  54. Yusuke Kitagawa, Kazuyuki Shudo, Osamu Mizuno, Ryohei Banno, “A study of Applying Plumtree Algorithm to Blockchain Networks”, IEICE General Conference, BS-9-9, March 2021.
  55. Takumu Takada, Ryohei Banno, “Trade-off Analysis of Network Latency and Subscription Load in Vehicular Edge Platform”, IEICE General Conference, B-16-1, March 2021.
  56. Toshinori Yoshizawa, Ryohei Banno, “A Study of Scalable Information Collection Platform Using MQTT v5.0”, IEICE General Conference, B-16-2, March 2021.
  57. Koki Osawa, Tomoya Hibi, Ryohei Banno, “MQTT-SN Acceleration using P4”, Technical Report of IEICE, IA2020-43, March 2021.
  58. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Evaluation of Processing Delay Time in IoT Data Distribution Method Appling Table-based Access Control List”, Technical Report of IEICE, IA2020-42, March 2021.
  59. Yuya Miki, Takeshi Kaneko, Ryohei Banno, Kazuyuki Shudo, “A Routing Method for Range Queries Utilizing Detour Routes on Skip Graph”, Technical Report of IEICE, IA2020-33, pp. 15-20, January 2021.
  60. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Applying Ticket-based Access Control List to Examination of IoT Data Distribution Method”, IEICE NWS workshop, nws-23-02, October 2020. Young Researcher Encouragement Award
  61. Masaki Yoshii, Ryohei Banno, Osamu Mizuno, “Application of Access Control List in IoT Data Distribution Method using Fog Computing”, IEICE Society Conference, BS-4-2, September 2020.

Invited Talks, reports

  1. [Guest lecture] Ryohei Banno, “Studies on Aunotomous Distributed Systems”, Graduate School of Global Informatics, Chuo University., July 2024.
  2. [Expository article] Ryohei Banno, “Loosely Coupled IoT Systems by MQTT”, ISCIE Systems, Control and Information, Vol. 67, No. 12, pp. 494-499, 2023.
  3. [Invited talk] Ryohei Banno, “Various Tradeoffs in IoT Systems and Edge Computing”, EAI International Conference on Mobile Networks and Management (MONAMI), November 2020.
  4. [Invited lecture] Ryohei Banno, “Trends of MQTT: A Lightweight Messaging Protocol for IoT”, IEICE TCNS, NS2020-68, October 2020.

Workshops, exhibitions, etc.

  1. [Talk] Ryohei Banno, “Processing of IoT communication protocols by using P4”, P4 Users Japan 2022, November 24h, 2022. [YouTube]

Awards

  1. Shota Imoto, Yoshito Watanabe, Ryohei Banno: Best Poster Award, IA Workshop 2024, October 27th, 2024.
  2. Tomoki Okuda: Student Presentation Award, IEICE Technical Committee on Network Systems, October 11th, 2024.
  3. Keisuke Yoshimura: Young Researcher Encouragement Award, IEICE Technical Committee on Network Systems, October 9th, 2024.
  4. Ryohei Banno: Certificate of Appreciation, IEEE COMPSAC 2023, June 28th, 2023.