Source-free domain adaptation (SFDA) aims to transfer knowledge learned from a source domain to an unlabeled target domain, where the source data is unavailable during adaptation. Existing approaches for SFDA focus on self-training usually including well-established entropy minimization techniques. One of the main challenges in SFDA is to reduce accumulation of errors caused by domain misalignment. A recent strategy successfully managed to reduce error accumulation by pseudo-labeling the target samples based on class-wise prototypes (centroids) generated by their clustering in the representation space. However, this strategy also creates cases for which the cross-entropy of a pseudo-label and the minimum entropy have a conflict in their objectives. We call this conflict the centroid-hypothesis conflict. We propose to reconcile this conflict by aligning the entropy minimization objective with that of the pseudo labels' cross entropy. We demonstrate the effectiveness of aligning the two loss objectives on three domain adaptation datasets. In addition, we provide state-of-the-art results using up-to-date architectures also showing the consistency of our method across these architectures.

神经网络量化能够在边缘设备上部署模型。对其硬件效率的基本要求是平衡器是硬件友好的：均匀，对称，以及两个阈值的功率。据我们所知，目前的训练后量化方法不同时支持所有这些约束。在这项工作中，我们引入了硬件友好的训练量化（HPTQ）框架，通过协同组合几种已知的量化方法来解决这个问题。我们对四个任务进行了大规模的研究：在各种网络架构上进行分类，对象检测，语义分割和姿势估计。我们广泛的实验表明，可以在硬件友好的限制下获得竞争结果。

Effective conservation of maritime environments and wildlife management of endangered species require the implementation of efficient, accurate and scalable solutions for environmental monitoring. Ecoacoustics offers the advantages of non-invasive, long-duration sampling of environmental sounds and has the potential to become the reference tool for biodiversity surveying. However, the analysis and interpretation of acoustic data is a time-consuming process that often requires a great amount of human supervision. This issue might be tackled by exploiting modern techniques for automatic audio signal analysis, which have recently achieved impressive performance thanks to the advances in deep learning research. In this paper we show that convolutional neural networks can indeed significantly outperform traditional automatic methods in a challenging detection task: identification of dolphin whistles from underwater audio recordings. The proposed system can detect signals even in the presence of ambient noise, at the same time consistently reducing the likelihood of producing false positives and false negatives. Our results further support the adoption of artificial intelligence technology to improve the automatic monitoring of marine ecosystems.

Molecular shape and geometry dictate key biophysical recognition processes, yet many graph neural networks disregard 3D information for molecular property prediction. Here, we propose a new contrastive-learning procedure for graph neural networks, Molecular Contrastive Learning from Shape Similarity (MolCLaSS), that implicitly learns a three-dimensional representation. Rather than directly encoding or targeting three-dimensional poses, MolCLaSS matches a similarity objective based on Gaussian overlays to learn a meaningful representation of molecular shape. We demonstrate how this framework naturally captures key aspects of three-dimensionality that two-dimensional representations cannot and provides an inductive framework for scaffold hopping.

低估和控制生成模型的潜像是一个复杂的任务。在本文中，我们提出了一种新的学习方法，用于在预先训练的GaN的潜在空间中控制任何所需属性，以便相应地编辑合成和现实世界数据样本。我们执行SIM2REAL学习，依靠最小的样品来实现无限量的连续精确编辑。我们介绍了一种基于AutoEncoder的模型，该模型学习以编码图像之间的变化的语义作为编辑稍后编辑新样本的基础，实现了精确的期望结果 - 图1所示的示例。虽然先前的编辑方法依赖于潜伏的已知结构空格（例如，样式中的某些语义的线性），我们的方法本身不需要任何结构约束。我们在面部图像的域中演示了我们的方法：编辑不同的表达式，姿势和照明属性，实现最先进的结果。