@inproceedings{oai:nitech.repo.nii.ac.jp:00004663,
 author = {Matsui, Toshihiro and Matsuo, Hiroshi},
 book = {The 2013 IEEE/WIC/ACM International Conference on Intelligent Agent Technology (IAT2013)},
 month = {Nov},
 note = {application/pdf},
 pages = {38--45},
 publisher = {Institute of Electrical and Electronics Engineers},
 title = {Distributed Cooperative Optimization on Cluster Trees},
 year = {2013}
}