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[DL輪読会]Clebsch–Gordan Nets: a Fully Fourier Space Spherical Convolutional Neural Network
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 ∈ 𝑀3(ℝ)|𝑔𝑔 𝑡 = 𝑔 𝑡 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.Kö hler,andM.Welling.SphericalCNNs.Interna
tionalConferenceonLearning 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