The data were fitted with a sum of exponentials convoluted with an instrument response function, which was assumed to be a Gaussian. The full width at half maximum of the instrument response function obtained f
A demonstration of coherent Δg-driven rotations at a centre barrier voltageVCB = 910 mV is depicted in Fig.3cwith the pulse sequence shown in Fig.3b. The system is first initialized in (2,0) in a singlet, then pulsed quickly deep into (1,1), where the holes are separated. H...
Understanding the pairing symmetry is a crucial theoretical aspect in the study of unconventional superconductivity for interpreting experimental results. Here we study superconductivity of electron systems with both spin and pseudospin-1/2 degrees of fr
The sum of rate constants kPB and kBC equals kPC in the main diagram. Structures of RCs with and without carotenoid from Rhodopseudomonas (Rps.) viridis (Deisenhofer et al., 1985, Deisenhofer et al., 1995) and Rb. sphaeroides (Yeates et al., 1988, Chang et al., 1991, Ermler et ...
sum(dim=1) def compute_distance_matrix(anchor, positive, negative): """ Compute distance matrix between anchor, positive, and negative samples. """ distance_matrix = torch.zeros(anchor.size(0), 3) distance_matrix[:, 0] = euclidean_distance(anchor, anchor) distance_matrix[:, 1] = ...
pytorch中通过 torch.nn.TripletMarginLoss 类实现，也可以直接调用 F.triplet_margin_loss 函数。 size_average 与 reduce 已经弃用。reduction有三种取值 mean , sum , none ，对应不同的返回 。 默认为 mean ，对应于一般情况下整体 的计算。该类默认使用如下距离函数， 默认为2，对应...
The most part of the experimental dependences can be presented as the sum of the temperature-independent susceptibility and the susceptibility obeying the Curie law. The both susceptibilities are described in a single manner at E 1 < 0. In some cases, the comparison of the calculated and ...
margin(float,可选的) -一个非负边距,表示损失为 0 所需的正负距离之间的最小差异。较大的边距会惩罚负样本相对于正样本距离锚点不够远的情况。默认值:。 swap(bool,可选的) -是否使用 V. Balntas、E. Riba 等人在论文Learning shallow convolutional feature descriptors with triplet losses中说明的距离交换。
Faced with a significant increase in the number of features, selecting appropriate and valid features is a challenging work. Gating mechanism is an efficient structure for controlling the propagation of information and filtering features, and has been heavily applied in many models. Long Short-Term ...
其中,\text{cum_sum}(r_i)表示到元素b_i为止的累积权重,这个元素在按降序排列的令牌权重中排名为r_i第r_i位,τ是一个固定的阈值,表示需要被掩码的特征比例。 然后,我们推导出加权的全局文本特征: 以及相应的掩码文本特征: 其中,公式15-16中的操作 ⊙ 表示点积操作。