1. 1
DEEP LEARNING JP
[DL Papers]
http://deeplearning.jp/
Clebsch-Gordan Nets: a Fully Fourier Space Spherical
Convolutional Neural Network
Rei Mizuta, Graduate School of Mathematical Sciences, UT
2. 書誌情報
• 著者:Risi Kondor, Zhen Lin, Shubhendu Trivedi
• NIPS 2018 (12/2~12/8 @Canada)
• (cf. On the generalization of equivalence and convolution in neural
networks to the action of compact groups.; ICLR 2018)
• Spherical CNNs(Taco S. Cohen et al.; ICLR 2018)のアーキテクチャを変え
てSO(3)-equivariant(つまり⼊⼒を回転してもNNの出⼒は同じ)にしたもの
• 定義:SO(3):={𝑔 ∈ 𝑀$(ℝ)|𝑔𝑔( = 𝑔( 𝑔 = 𝐼, det 𝑔 = 1}
• SO(3)は3次元、⾮可換、コンパクト
2
球⾯を中⼼を固定して
動かす操作の全体!
22. 参考文献
• Savva, M., Yu, F., Su, H., Kanezaki, A., Furuya, T., Ohbuchi, R.,
Zhou, Z., Yu, R., Bai, S., Bai, X., Aono, M., Tatsuma, A.,
Thermos, S., Axenopoulos, A., Papadopoulos, G. T., Daras, P.,
Deng, X., Lian, Z., Li, B., Johan, H., Lu, Y., and Mk., S. (2017).
Large-scale 3d shape retrieval from shapenet core55.
Eurographics Workshop on 3D Object Retrieval.
• A. X. Chang, T. Funkhouser, L. Guibas, P. Hanrahan, Q. Huang,
Z. Li, S. Savarese, M. Savva, S. Song, H. Su, J. Xiao, L. Yi, and F.
Yu. Shapenet: An information-rich 3d model repository. 2015.
• T.S.Cohen,M.Geiger,J.Ko¨hler,andM.Welling.SphericalCNNs.Intern
ationalConferenceonLearning Representations, 2018.
• Risi Kondor, Zhen Lin, and Shubhendu Trivedi. Clebsch–gordan
nets: a fully fourier space spherical convolutional neural network.
In Neural Information Processing Systems (NIPS), 2018. 22