Shigenari Nakamura


Graduate School of Science and Engineering

Hosei University


(Last Updated:June 24, 2019)

Research Area:Information Flow Control


In information systems, data in an object may illegally flow into another object. In this figure, first, a subject A reads the content x of file 1. Next, the subject A writes the content x into file 2. Then, a subject B reads the file 2. As a result, the subject B can read the content x in the file 1, although B is not allowed to read the file 1.

We would like to propose information flow control models to prevent illegal information flow to occur.


illegal information flow

Awards


  1. Best Paper Award, The 20th International Conference on Network-Based Information Systems (NBiS-2017), Toronto, Canada, Aug. 2017.

  2. Best Paper Award, The 9th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2015), Blumenau, Brazil, July 2015.

  3. C&C若手優秀論文賞, 公益財団法人 NEC C&C財団, 2016年1月, A Flexible Read-Write Abortion Protocol with Sensitivity of Objects to Prevent Illegal Information Flow (CISIS-2015).

  4. 理工学研究科 学業優秀賞, 法政大学理工系学部教育・研究振興基金, 2016年8月.

Research Grants


  1. Grant-in-Aid for JSPS Research Fellow (特別研究員奨励費), Japan Society for the Promotion of Science (独立行政法人 日本学術振興会), Apr. 2017 - Mar. 2020, 分散システムの不正情報流防止方式の研究.

  2. 若手研究者共同研究プロジェクト, 法政大学, 2018年10月 - 2020年3月, 大規模分散システムにおける不正情報流防止方式の研究.

Travel Grants


  1. 国際交流援助, 中部電気利用基礎研究振興財団, 2015年12月, Influential Abortion Probability in a Flexible Read-Write Abortion Protocol (AINA-2016).

  2. 国際会議論文発表者助成, 公益財団法人NEC C&C財団, 2015年4月, A Flexible Read-Write Abortion Protocol with Sensitivity of Objects to Prevent Illegal Information Flow (CISIS-2015).

Refereed Journal Papers


  1. S. Nakamura, T. Enokido, and M. Takizawa, "Causally Ordering Delivery of Event Messages in P2PPSO Systems," Cognitive Systems Research (CSR), Vol.56, Aug. 2019, pp.167-178, DOI:10.1016/j.cogsys.2019.03.011.

  2. S. Nakamura, T. Enokido, and M. Takizawa, "Information Flow Control in Object-Based Peer-to-Peer Publish/Subscribe Systems," Concurrency and Computation: Practice and Experience (CPE), Jan. 2019, DOI:10.1002/cpe.5118.

  3. R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Fault-Tolerant Tree-Based Fog Computing Model," accepted for publication at International Journal of Web and Grid Services (IJWGS).

  4. S. Nakamura, T. Enokido, and M. Takizawa, "A Flexible Synchronization Protocol to Learn Hidden Topics in P2PPS Systems," accepted for publication at Transactions on Computational Collective Intelligence (TCCI).

  5. S. Nakamura, T. Enokido, and M. Takizawa, "A Topic-Based Synchronisation Protocol in Peer-to-Peer Publish/Subscribe Systems," accepted for publication at International Journal of Communication Networks and Distributed Systems (IJCNDS).

  6. S. Nakamura, T. Enokido, and M. Takizawa, "A Flexible Read-Write Abortion Protocol with Role Safety Concept to Prevent Illegal Information Flow," Journal of Ambient Intelligence and Humanized Computing (AIHC), Vol.9, No.5, Oct. 2018, pp.1415-1425, DOI:10.1007/s12652-017-0541-1.

  7. R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "An Energy-Efficient Model for Fog Computing in the Internet of Things (IoT)," Internet of Things; Engineering Cyber Physical Human Systems, Vol.1-2, Sept. 2018, pp.14-26, DOI:10.1016/j.iot.2018.08.003.

  8. S. Nakamura, L. Ogiela, T. Enokido, and M. Takizawa, "An Information Flow Control Model in a Topic-based Publish/Subscribe System," Journal of High Speed Networks (JHS),Vol.24, No.3, June 2018, pp.243-257, DOI:10.3233/JHS-180593.

  9. S. Nakamura, M. Sugino, and M. Takizawa, "Algorithms for Energy-efficient Broadcasting Messages in Wireless Networks," Journal of High Speed Networks (JHS),Vol.24, No.1, Jan. 2018, pp.1-15, DOI:10.3233/JHS-170577.

  10. H. Kataoka, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Multi-level Power Consumption Model and Energy-Aware Server Selection Algorithm," International Journal of Grid and Utility Computing (IJGUC), Vol.8, No.3, Oct. 2017, pp.201-210, DOI:10.1504/IJGUC.2017.10008769.

  11. S. Nakamura, T. Enokido, and M. Takizawa, "Sensitivity-Based Synchronisation Protocol to Prevent Illegal Information Flow among Objects," International Journal of Web and Grid Services (IJWGS), Vol.13, No.3, June 2017, pp.315-333, DOI:10.1504/IJWGS.2017.085147.

  12. S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Read-Write Abortion Protocol to Prevent Illegal Information Flow in Role-based Access Control Systems," International Journal of Space-Based and Situated Computing (IJSSC), Vol.6, No.1, May 2016, pp.43-53, DOI:10.1504/IJSSC.2016.076564.

  13. S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Flexible Read-Write Abortion Protocol to Prevent Illegal Information Flow among Objects," Journal of Mobile Multimedia (JMM), Vol.11, No.3&4, Nov. 2015, pp.263-280.

  14. S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Write Abortion-based Protocol in Role-based Access Control Systems," International Journal of Adaptive and Innovative Systems (IJAIS), Vol.2, No.2, Sept. 2015, pp.142-160, DOI:10.1504/IJAIS.2015.072139.

  15. D. Duolikun, S. Nakamura, T. Enokido, and M. Takizawa, "An Energy-Efficient Process Migration Approach to Reducing Electric Energy Consumption in a Cluster of Servers," International Journal of Communication Networks and Distributed Systems (IJCNDS), Vol.15, No.4, Sept. 2015, pp.400-420, DOI:10.1504/IJCNDS.2015.072404.

  16. S. Nakamura, D. Duolikun, and M. Takizawa, "Read-Abortion (RA) Based Synchronization Protocols to Prevent Illegal Information Flow," Journal of Computer and System Sciences (JCSS), Vol.81, No.8, Dec. 2015, pp.1441-1451, DOI:10.1016/j.jcss.2014.12.020.


Refereed International Conference Papers


  1. R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Subprocess Transmission Strategies for Recovering from Faults in the Tree-Based Fog Computing (TBFC) Model," Proc. of the 13th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2019), Sydney, Australia, July. 2019, pp.50-61.

  2. T. Saito, S. Nakamura, T. Enokido, and M. Takizawa, "Message Ordering Based on the Object-Based-Causally (OBC) Precedent Relation," Proc. of the 13th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2019), Sydney, Australia, July. 2019, pp.62-72.

  3. S. Nakamura, T. Enokido, L. Barolli, and M. Takizawa, "Capability-Based Information Flow Control Model in the IoT," Proc. of the 13th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS-2019), Sydney, Australia, July. 2019, pp.63-71.

  4. Y. Guo, R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Evaluation of a Two-Way Tree-Based Fog Computing (TWTBFC) Model," Proc. of the 13th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS-2019), Sydney, Australia, July. 2019, pp.72-81.

  5. S. Nakamura, T. Enokido, L. Barolli, and M. Takizawa, "Efficient Information Flow Control by Reducing Meaningless Messages in P2PPSO Systems," Proc. of the 33rd International Conference on Advanced Information Networking and Applications (AINA-2019), Matsue, Japan, Mar. 2019, pp.108-119.

  6. R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Energy-Efficient Recovery Algorithm in the Fault-Tolerant Tree-Based Fog Computing (FTBFC) Model," Proc. of the 33rd International Conference on Advanced Information Networking and Applications (AINA-2019), Matsue, Japan, Mar. 2019, pp.132-143.

  7. Y. Guo, R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Two-Way Flow Model for Fog Computing," Proc. of the 33rd International Conference on Advanced Information Networking and Applications Workshops (WAINA-2019), Matsue, Japan, Mar. 2019, pp.612-620.

  8. T. Saito, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Evaluation of TBC and OBC Precedent Relations Among Messages in P2P Type of Topic-Based Publish/Subscribe System," Proc. of the 33rd International Conference on Advanced Information Networking and Applications Workshops (WAINA-2019), Matsue, Japan, Mar. 2019, pp.570-581.

  9. R. Chida, Y. Guo, R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Implementation of Fog Nodes in the Tree-Based Fog Computing (TBFC) Model of the IoT," Proc. of the 7th International Conference on Emerging Internet, Data, and Web Technologies (EIDWT-2019), Fujairah, United Arab Emirates (UAE), Feb. 2019, pp.92-102.

  10. S. Hayashi, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Evaluation of a Protocol to Prevent Illegal Information Flow Based on Maximal Roles in the RBAC Model," Proc. of the 7th International Conference on Emerging Internet, Data, and Web Technologies (EIDWT-2019), Fujairah, United Arab Emirates (UAE), Feb. 2019, pp.80-91.

  11. S. Nakamura, T. Enokido, and M. Takizawa, "Evaluation of Object-Based Information Flow Control in P2PPS Systems," Proc. of the 13th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2018), Taichung, Taiwan, Oct. 2018, pp.125-134.

  12. S. Hayashi, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Synchronization Protocol to Prevent Illegal Information Flow Based on Maximal Roles in the Role-Based Access Control Model," Proc. of the 13th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2018), Taichung, Taiwan, Oct. 2018, pp.525-533.

  13. T. Saito, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Object-Based Selective Delivery of Event Messages in Topic-Based Publish/Subscribe Systems," Proc. of the 13th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2018), Taichung, Taiwan, Oct. 2018, pp.444-455.

  14. R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Fault-Tolerant Fog Computing Models in the IoT," Proc. of the 13th International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC-2018), Taichung, Taiwan, Oct. 2018, pp.14-25.

  15. S. Nakamura, T. Enokido, and M. Takizawa, "Object-Based Information Flow Control Model in P2PPS Systems," Proc. of the 21st International Conference on Network-Based Information Systems (NBiS-2018), Bratislava, Slovakia, Sept. 2018, pp.110-121.

  16. D. Duolikun, S. Nakamura, T. Enokido, and M. Takizawa, "An Energy-Efficient Dynamic Live Migration of Multiple Virtual Machines," Proc. of the 21st International Conference on Network-Based Information Systems (NBiS-2018), Bratislava, Slovakia, Sept. 2018, pp.87-98.

  17. R. Oma, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Evaluation of an Energy-Efficient Tree-Based Model of Fog Computing," Proc. of the 21st International Conference on Network-Based Information Systems (NBiS-2018), Bratislava, Slovakia, Sept. 2018, pp.99-109.

  18. T. Saito, S. Nakamura, T. Enokido, and M. Takizawa, "A Causally Precedent Relation Among Messages in Topic-Based Publish/Subscribe Systems," Proc. of the 21st International Conference on Network-Based Information Systems (NBiS-2018), Bratislava, Slovakia, Sept. 2018, pp.543-553.

  19. S. Nakamura, T. Enokido, and M. Takizawa, "Evaluation of a Protocol to Prevent Malicious Information Flow in P2PPS Systems," Proc. of the 12th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2018), Matsue, Japan, July 2018, pp.102-114.

  20. R. Oma, S. Nakamura, T. Enokido, and M. Takizawa, "A Tree-Based Model of Energy-Efficient Fog Computing Systems in IoT," Proc. of the 12th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2018), Matsue, Japan, July 2018, pp.991-1001.

  21. E. Ogawa, S. Nakamura, T. Enokido, and M. Takizawa, "One-to-One Routing Protocols for Wireless Ad-Hoc Networks Considering the Electric Energy Consumption," Proc. of the 12th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS-2018), Matsue, Japan, July 2018, pp.105-115.

  22. S. Nakamura, L. Ogiela, T. Enokido, and M. Takizawa, "A Protocol to Prevent Malicious Information Flow in P2PPS Systems," Proc. of the 32nd International Conference on Advanced Information Networking and Applications (AINA-2018), Cracow, Poland, May 2018, pp.24-31.

  23. E. Ogawa, S. Nakamura, T. Enokido, and M. Takizawa, "Unicast Routing Protocols to Reduce Electric Energy Consumption in Wireless Ad-hoc Networks," Proc. of the 32nd International Conference on Advanced Information Networking and Applications Workshops (WAINA-2018), Cracow, Poland, May 2018, pp.533-538.

  24. R. Oma, S. Nakamura, T. Enokido, and M. Takizawa, "An Energy-efficient Model of Fog and Device Nodes in IoT," Proc. of the 32nd International Conference on Advanced Information Networking and Applications Workshops (WAINA-2018), Cracow, Poland, May 2018, pp.301-306.

  25. S. Nakamura, L. Ogiela, T. Enokido, and M. Takizawa, "Malicious Information Flow in P2PPS Systems," Proc. of the 6th International Conference on Emerging Internet, Data, and Web Technologies (EIDWT-2018), Tirana, Albania, Mar. 2018, pp.119-129.

  26. S. Nakamura, L. Ogiela, T. Enokido, and M. Takizawa, "A Flexible Synchronization Protocol for Hidden Topics to Prevent Illegal Information Flow in P2PPS Systems," Proc. of the 12th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2017), Barcelona, Spain, Nov. 2017, pp.138-148.

  27. E. Ogawa, S. Nakamura, T. Enokido, and M. Takizawa, "A Low-Energy Unicast Ad-Hoc Routing Protocol in Wireless Networks," Proc. of the 12th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2017), Barcelona, Spain, Nov. 2017, pp.173-184.

  28. R. Oma, S. Nakamura, T. Enokido, and M. Takizawa, "Hybrid Replication Schemes of Processes for Fault-Tolerance Systems in Energy-Efficient Server Clusters," Proc. of the 12th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2017), Barcelona, Spain, Nov. 2017, pp.597-607.

  29. S. Nakamura, L. Ogiela, T. Enokido, and M. Takizawa, "Evaluation of Flexible Synchronization Protocol to Prevent Illegal Information Flow in P2PPS Systems," Proc. of the 20th International Conference on Network-Based Information Systems (NBiS-2017), Toronto, Canada, Aug. 2017, pp.66-77.

  30. E. Ogawa, S. Nakamura, T. Enokido, and M. Takizawa, "An Energy-Aware One-to-one Routing Protocol in Wireless Ad-Hoc Network," Proc. of the 20th International Conference on Network-Based Information Systems (NBiS-2017), Toronto, Canada, Aug. 2017, pp.102-113.

  31. R. Oma, S. Nakamura, T. Enokido, and M. Takizawa, "Hybrid Replication Schemes of Processes in Energy-Efficient Server Clusters," Proc. of the 20th International Conference on Network-Based Information Systems (NBiS-2017), Toronto, Canada, Aug. 2017, pp.699-710.

  32. S. Nakamura, L. Ogiela, T. Enokido, and M. Takizawa, "Flexible Synchronization Protocol to Prevent Illegal Information Flow in Peer-to-Peer Publish/Subscribe Systems," Proc. of the 11th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2017), Turin, Italy, July 2017, pp.82-93.

  33. E. Ogawa, S. Nakamura, and M. Takizawa, "An Energy-Saving Unicast Routing Protocol in Wireless Ad-hoc Network," Proc. of the 11th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS-2017), Turin, Italy, July 2017, pp.110-120.

  34. A. Sawada, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Simple Energy-Aware Algorithms to Selecting a Server for Storage and Computation Processes in a Cluster," Proc. of the 11th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS-2017), Turin, Italy, July 2017, pp.98-109.

  35. S. Nakamura, L. Ogiela, T. Enokido, and M. Takizawa, "Evaluation of Protocols to Prevent Illegal Information Flow in Peer-to-Peer Publish/Subscribe Systems," Proc. of IEEE the 31st International Conference on Advanced Information Networking and Applications (AINA-2017), Taipei, Taiwan, Mar. 2017, pp.631-638.

  36. E. Ogawa, S. Nakamura, and M. Takizawa, "A Trustworthiness-based Ad-hoc Routing Protocol in Wireless Networks," Proc. of IEEE the 31st International Conference on Advanced Information Networking and Applications (AINA-2017), Taipei, Taiwan, Mar. 2017, pp.1162-1168.

  37. H. Kataoka, S. Nakamura, T. Enokido, and M. Takizawa, "Simple Energy-aware Algorithms for Selecting a Server in a Scalable Cluster," Proc. of the 31st International Conference on Advanced Information Networking and Applications Workshops (WAINA-2017), Taipei, Taiwan, Mar. 2017, pp.146-153.

  38. H. Nakayama, E. Ogawa, S. Nakamura, T. Enokido, and M. Takizawa, "Topic-based Selective Delivery of Event Messages in Peer-to-peer Model of Publish/Subscribe Systems in Heterogeneous Networks," Proc. of the 31st International Conference on Advanced Information Networking and Applications Workshops (WAINA-2017), Taipei, Taiwan, Mar. 2017, pp.327-334.

  39. A. Sawada, S. Nakamura, H. Kataoka, T. Enokido, and M. Takizawa, "Algorithms to Energy-efficiently Select a Server for a General Process in a Scalable Cluster," Proc. of the 31st International Conference on Advanced Information Networking and Applications Workshops (WAINA-2017), Taipei, Taiwan, Mar. 2017, pp.138-145.

  40. S. Nakamura, T. Enokido, and M. Takizawa, "Topic-based Synchronization (TBS) Protocols to Prevent Illegal Information Flow in Peer-to-Peer Publish/Subscribe Systems," Proc. of the 11th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2016), Asan, Korea, Nov. 2016, pp.57-68.

  41. D. Duolikun, S. Nakamura, R. Watanabe, T. Enokido, and M. Takizawa, "Energy-aware Migration of Virtual Machines in a Cluster," Proc. of the 11th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2016), Asan, Korea, Nov. 2016, pp.21-32.

  42. E. Ogawa, S. Nakamura, and M. Takizawa, "An Energy-efficient and Reliable Protocol in Wireless Networks," Proc. of the 11th International Conference on Broad-Band Wireless Computing, Communication and Applications (BWCCA-2016), Asan, Korea, Nov. 2016, pp.585-592.

  43. S. Nakamura, T. Enokido, and M. Takizawa, "Subscription Initialization (SI) Protocol to Prevent Illegal Information Flow in Peer-to-Peer Publish/Subscribe Systems," Proc. of the 19th International Conference on Network-Based Information Systems (NBiS-2016), Ostrava, Czech Republic, Sept. 2016, pp.42-49.

  44. H. Nakayama, S. Nakamura, T. Enokido, and M. Takizawa, "Topic-based Causally Ordered Delivery of Event Messages in a Peer-to-peer (P2P) Model of Publish/Subscribe Systems," Proc. of the 19th International Conference on Network-Based Information Systems (NBiS-2016), Ostrava, Czech Republic, Sept. 2016, pp.348-354.

  45. S. Nakamura, T. Enokido, and M. Takizawa, "Information Flow Control Models in Peer-to-Peer Publish/Subscribe Systems," Proc. of the 10th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2016), Fukuoka, Japan, July 2016, pp.167-174.

  46. H. Nakayama, S. Nakamura, T. Enokido, and M. Takizawa, "Scalable Group Communication Protocols in the Peer-to-peer Model of Topic-based Publish/Subscribe Systems," Proc. of the 10th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2016), Fukuoka, Japan, July 2016, pp.142-149.

  47. S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Influential Abortion Probability in a Flexible Read-Write Abortion Protocol," Proc. of IEEE the 30th International Conference on Advanced Information Networking and Applications (AINA-2016), Crans-Montana, Switzerland, Mar. 2016, pp.1-8.

  48. D. Duolikun, R. Watanabe, H. Kataoka, S. Nakamura, T. Enokido, and M. Takizawa, "An Energy-aware Migration of Virtual Machines," Proc. of IEEE the 30th International Conference on Advanced Information Networking and Applications (AINA-2016), Crans-Montana, Switzerland, Mar. 2016, pp.557-564.

  49. H. Honda, S. Nakamura, H. Nakayama, D. Duolikun, T. Enokido, and M. Takizawa, "A Scalable Group Communication Protocol in Heterogeneous Networks," Proc. of the 30th International Conference on Advanced Information Networking and Applications Workshops (WAINA-2016), Crans-Montana, Switzerland, Mar. 2016, pp.294-299.

  50. M. Sugino, S. Nakamura, T. Enokido, and M. Takizawa, "Protocols for Energy-efficiently Broadcasting Messages in Wireless Networks," Proc. of the 30th International Conference on Advanced Information Networking and Applications Workshops (WAINA-2016), Crans-Montana, Switzerland, Mar. 2016, pp.286-293.

  51. S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Role Safety in a Flexible Read-Write Abortion Protocol," Proc. of the 10th International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA-2015), Krakow, Poland, Nov. 2015, pp.333-340.

  52. D. Duolikun, H. Kataoka, S. Nakamura, T. Enokido, and M. Takizawa, "Energy-aware Migration and Replication of Processes in a Cluster," Proc. of the 10th International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA-2015), Krakow, Poland, Nov. 2015, pp.283-287.

  53. S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Flexible Read-Write Abortion Protocol with Sensitivity of Roles," Proc. of the 18th International Conference on Network-Based Information Systems (NBiS-2015), Taipei, Taiwan, Sept. 2015, pp.132-139.

  54. H. Honda, S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "Reduction of Unnecessarily Ordered Messages in Scalable Group Communication," Proc. of the 18th International Conference on Network-Based Information Systems (NBiS-2015), Taipei, Taiwan, Sept. 2015, pp.99-106.

  55. S. Nakahira, S. Nakamura, T. Enokido, and M. Takizawa, "Trustworthiness in Peer-to-Peer Systems," Proc. of the 18th International Conference on Network-Based Information Systems (NBiS-2015), Taipei, Taiwan, Sept. 2015, pp.652-657.

  56. A. Sawada, S. Nakamura, T. Enokido, and M. Takizawa, "Eco Models of Storage-based Servers," Proc. of the 18th International Conference on Network-Based Information Systems (NBiS-2015), Taipei, Taiwan, Sept. 2015, pp.407-411.

  57. M. Sugino, S. Nakamura, T. Enokido, and M. Takizawa, "Energy-efficient Broadcast Protocols in Wireless Networks," Proc. of the 18th International Conference on Network-Based Information Systems (NBiS-2015), Taipei, Taiwan, Sept. 2015, pp.357-364.

  58. S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Flexible Read-Write Abortion Protocol with Sensitivity of Objects to Prevent Illegal Information Flow," Proc. of the 9th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2015), Blumenau, Brazil, July 2015, pp.289-296.

  59. D. Duolikun, S. Nakamura, T. Enokido, and M. Takizawa, "Energy-efficient Replication and Migration of Processes in a Cluster," Proc. of the 9th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2015), Blumenau, Brazil, July 2015, pp.118-125.

  60. M. Sugino, S. Nakamura, T. Enokido, and M. Takizawa, "Trustworthiness-based Broadcast Protocols in Wireless Networks," Proc. of the 9th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS-2015), Blumenau, Brazil, July 2015, pp.125-132.

  61. S. Nakamura, D. Duolikun, T. Enokido, and M. Takizawa, "A Flexible Read-Write Abortion Protocol to Prevent Illegal Information Flow," Proc. of IEEE the 29th International Conference on Advanced Information Networking and Applications (AINA-2015), Gwangju, Korea, Mar. 2015, pp.155-162.

  62. S. Nakamura, D. Duolikun, A. Aikebaier, T. Enokido, and M. Takizawa, "Read-Write Abortion (RWA) Based Synchronization Protocols to Prevent Illegal Information Flow," Proc. of the 17th International Conference on Network-Based Information Systems (NBiS-2014), Salerno, Italy, Sept. 2014, pp.120-127.

  63. S. Nakamura, D. Duolikun, A. Aikebaier, T. Enokido, and M. Takizawa, "Synchronization Protocols to Prevent Illegal Information Flow in Role-based Access Control Systems," Proc. of the 8th International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2014), Birmingham, UK, July 2014, pp.279-286.

  64. S. Nakamura, D. Duolikun, A. Aikebaier, T. Enokido, and M. Takizawa, "Role-based Information Flow Control Models," Proc. of IEEE the 28th International Conference on Advanced Information Networking and Applications (AINA-2014), Victoria, Canada, May 2014, pp.1140-1147.