Then softmax is applied to obtain probabilities. Totunethehyperparameters in BAM, we randomly hold out20% of the training set for validation. The vocabulary sizeV is 9488 and the max captionlengthT is16. During training, weuseMLElossonlywithout scheduled sampling or RLloss. At the stepj of decoding, current LSTM state x (a function of previous target words y1:j 1) is used as query.

Section 2, Section 3 and Section 4 provide more visualization results on a number of 3D modelingtasks,includingshapereconstruction,generationandinterpolation. Note that all the hierarchical aggregators {Ei} share the same networkparameters. Hierarchical decoder D includes an implicit octant decoder and some hierarchical local decoders {Di}, which maps the decoded shape code and a sample point (x,y,z) to the local geometry and the local latent feature, respectively. IN means the instance normalization 3D operator[9]. We provide two tables (Table 1 and Table 2) to detail the network structures of 3D voxel encoder andimplicitdecoder,respectively.