Publication list

Google Scholar

Preprint

  1. Sadamori Kojaku, Mengqiao Xu, Haoxiang Xia, Naoki Masuda. Multiscale core-periphery structure in a global liner shipping network.

Journal papers

  1. Sadamori Kojaku, Giulio Cimini, Guido Caldarelli, Naoki Masuda. Structural changes in the interbank market across the financial crisis from multiple core-periphery analysis. Journal of Network Theory in Finance, 4, 33-51 (2018)
  2. Naoki Masuda, Sadamori Kojaku, Yukie Sano. A configuration model for correlation matrices. Physical Review E, 98, 012312 (2018)
  3. Sadamori Kojaku, Naoki Masuda. A generalised significance test for individual communities in networks. Scientific Reports, 8, 7351 (2018)
  4. Sadamori Kojaku, Naoki Masuda. Core-periphery structure requires something else in the network. New Journal of Physics, 20, 043012 (2018)
  5. Sadamori Kojaku, Naoki Masuda. Finding multiple core-periphery pairs in networks. Physical Revew E, 96, 052313 (2017)
  6. Sadamori Koujaku, Ichigaku Takigawa, Mineichi Kudo and Hideyuki Imai. Dense core model for cohesive subgraph discovery. Social Networks, 44, 143-152 (2016)
  7. 幸若 完壮, 渡辺 浩太, 五十嵐 一. 合理的な忘却型Profit Sharing強化学習法. 電気学会論文誌C, 132, 448-454 (2012)

Conference papers and posters

  1. Sadamori Kojaku and Naoki Masuda. A generalised significance test for individual communities in networks. Netsci. Paris, France, June 11–15 (2018) [poster].
  2. Xia Cui, Sadamori Kojaku, Naoki Masuda and Danushka Bollegala. Solving feature spareness in text classification using core-periphery decomposition. In Proceedings of the 7th Joint Conference on Lexical and Computational Semantics, 225-264 (ACL, New Orleans, USA, 2018).
  3. Sadamori Kojaku and Naoki Masuda. Core-periphery structure in degree-heterogeneous networks. Netsci-X. Hangzhou, China (2018)
  4. Sadamori Kojaku and Naoki Masuda. Multi-scale organisation of core-periphery structure in networks. 1st Laten American Conference on Complex Networks. Puebla, Mexico September 25-29 (2017) [poster]
  5. Sadamori Kojaku and Naoki Masuda. Core-periphery structure of networks: Consideration for random heterogeneous networks. Netsci. Indianapolis, Indiana, USA (2017) [poster]
  6. Sadamori Kojaku and Naoki Masuda. An extension of modularity for finding multiple core/periphery structure in networks. Netsci-X. Tel Aviv, Israel January 15-18 (2017). [poster]
  7. Sadamori Kojaku and Naoki Masuda. Finding multiple core-periphery structure with random walks. 5th International Workshop on Complex Networks and their Applications. Milan, Italy November 30-December 2 (2016)
  8. Keigo Kimura, Mineichi Kudo, Lu Sun and Sadamori Kojaku. Fast random k-labelsets for large-scale multi-label classification. 23rd International Conference on Pattern Recognition. Cancun, Mexico December 4-8 (2016)
  9. Sadamori Koujaku, Mineichi Kudo, Ichigaku Takigawa and Hideyuki Imai. Community change detection in dynamic networks in noisy environment. 24th International Conference on World Wide Web. Florence, Italy, May 18 - 22 (2015)
  10. Sadamori Koujaku, Mineichi Kudo, Ichigaku Takigawa and Hideyuki Imai. Structual change point detection for social networks. The World Congress on Engineering. London, the United Kingdom, July 3-5 (2013).
  11. Sadamori Koujaku, Kota Watanabe and Hajime Igarashi. Adaptive profit sharing reinforcement learning for dynamic environment. 10th International Conference on Machine Learning and Applications and Workshops. Hawaii, the United States (2011)

Awards

  1. NetSci X Best Contribution on Financial Networks Award for “An extension of modularity for finding multiple core/periphery structure in networks” (2017)
  2. Deans’ Award for my doctoral thesis “Finding core communities in social networks.” (2015)
  3. Best Student Award for Sadamori Koujaku, Mineichi Kudo, Ichigaku Takigawa and Hideyuki Imai “Structural change point detection for evolutional networks.” The World Congress on Engineering (2013)