我们提出了一种使用条件生成对抗网络（CGANS）在机器人关节空间和潜在空间之间转换的新方法，以进行无碰撞路径计划，该方法仅捕获以障碍物图来捕获关节空间的无碰撞区域。操纵机器人臂时，很方便地生成多个合理的轨迹进行进一步选择。此外，出于安全原因，有必要生成轨迹，以避免与机器人本身或周围环境发生碰撞。在提出的方法中，可以通过将开始和目标状态与此生成的潜在空间中的任意线段连接起来和目标状态来产生各种轨迹。我们的方法提供了此无碰撞潜在空间，此后，任何使用任何优化条件的计划者都可以使用任何计划器来生成最合适的路径。我们通过模拟和实际的UR5E 6-DOF机器人臂成功验证了这种方法。我们确认可以根据优化条件的选择生成不同的轨迹。

Fisher's criterion is a widely used tool in machine learning for feature selection. For large search spaces, Fisher's criterion can provide a scalable solution to select features. A challenging limitation of Fisher's criterion, however, is that it performs poorly when mean values of class-conditional distributions are close to each other. Motivated by this challenge, we propose an extension of Fisher's criterion to overcome this limitation. The proposed extension utilizes the available heteroscedasticity of class-conditional distributions to distinguish one class from another. Additionally, we describe how our theoretical results can be casted into a neural network framework, and conduct a proof-of-concept experiment to demonstrate the viability of our approach to solve classification problems.

Text-to-speech synthesis (TTS) is a task to convert texts into speech. Two of the factors that have been driving TTS are the advancements of probabilistic models and latent representation learning. We propose a TTS method based on latent variable conversion using a diffusion probabilistic model and the variational autoencoder (VAE). In our TTS method, we use a waveform model based on VAE, a diffusion model that predicts the distribution of latent variables in the waveform model from texts, and an alignment model that learns alignments between the text and speech latent sequences. Our method integrates diffusion with VAE by modeling both mean and variance parameters with diffusion, where the target distribution is determined by approximation from VAE. This latent variable conversion framework potentially enables us to flexibly incorporate various latent feature extractors. Our experiments show that our method is robust to linguistic labels with poor orthography and alignment errors.

End-to-end text-to-speech synthesis (TTS) can generate highly natural synthetic speech from raw text. However, rendering the correct pitch accents is still a challenging problem for end-to-end TTS. To tackle the challenge of rendering correct pitch accent in Japanese end-to-end TTS, we adopt PnG~BERT, a self-supervised pretrained model in the character and phoneme domain for TTS. We investigate the effects of features captured by PnG~BERT on Japanese TTS by modifying the fine-tuning condition to determine the conditions helpful inferring pitch accents. We manipulate content of PnG~BERT features from being text-oriented to speech-oriented by changing the number of fine-tuned layers during TTS. In addition, we teach PnG~BERT pitch accent information by fine-tuning with tone prediction as an additional downstream task. Our experimental results show that the features of PnG~BERT captured by pretraining contain information helpful inferring pitch accent, and PnG~BERT outperforms baseline Tacotron on accent correctness in a listening test.

Computer vision applications have heavily relied on the linear combination of Lambertian diffuse and microfacet specular reflection models for representing reflected radiance, which turns out to be physically incompatible and limited in applicability. In this paper, we derive a novel analytical reflectance model, which we refer to as Fresnel Microfacet BRDF model, that is physically accurate and generalizes to various real-world surfaces. Our key idea is to model the Fresnel reflection and transmission of the surface microgeometry with a collection of oriented mirror facets, both for body and surface reflections. We carefully derive the Fresnel reflection and transmission for each microfacet as well as the light transport between them in the subsurface. This physically-grounded modeling also allows us to express the polarimetric behavior of reflected light in addition to its radiometric behavior. That is, FMBRDF unifies not only body and surface reflections but also light reflection in radiometry and polarization and represents them in a single model. Experimental results demonstrate its effectiveness in accuracy, expressive power, and image-based estimation.

The detection of earthquakes is a fundamental prerequisite for seismology and contributes to various research areas, such as forecasting earthquakes and understanding the crust/mantle structure. Recent advances in machine learning technologies have enabled the automatic detection of earthquakes from waveform data. In particular, various state-of-the-art deep-learning methods have been applied to this endeavour. In this study, we proposed and tested a novel phase detection method employing deep learning, which is based on a standard convolutional neural network in a new framework. The novelty of the proposed method is its separate explicit learning strategy for global and local representations of waveforms, which enhances its robustness and flexibility. Prior to modelling the proposed method, we identified local representations of the waveform by the multiple clustering of waveforms, in which the data points were optimally partitioned. Based on this result, we considered a global representation and two local representations of the waveform. Subsequently, different phase detection models were trained for each global and local representation. For a new waveform, the overall phase probability was evaluated as a product of the phase probabilities of each model. This additional information on local representations makes the proposed method robust to noise, which is demonstrated by its application to the test data. Furthermore, an application to seismic swarm data demonstrated the robust performance of the proposed method compared with those of other deep learning methods. Finally, in an application to low-frequency earthquakes, we demonstrated the flexibility of the proposed method, which is readily adaptable for the detection of low-frequency earthquakes by retraining only a local model.

临床文本的自动汇总可以减轻医疗专业人员的负担。 “放电摘要”是摘要的一种有希望的应用，因为它们可以从每日住院记录中产生。我们的初步实验表明，放电摘要中有20-31％的描述与住院记录的内容重叠。但是，目前尚不清楚如何从非结构化来源生成摘要。为了分解医师的摘要过程，本研究旨在确定摘要中的最佳粒度。我们首先定义了具有不同粒度的三种摘要单元，以比较放电摘要生成的性能：整个句子，临床段和条款。我们在这项研究中定义了临床细分，旨在表达最小的医学意义概念。为了获得临床细分，有必要在管道的第一阶段自动拆分文本。因此，我们比较了基于规则的方法和一种机器学习方法，而后者在分裂任务中以0.846的F1得分优于构造者。接下来，我们在日本的多机构国家健康记录上，使用三种类型的单元（基于Rouge-1指标）测量了提取性摘要的准确性。使用整个句子，临床段和条款分别为31.91、36.15和25.18的提取性摘要的测量精度分别为31.91、36.15和25.18。我们发现，临床细分的准确性比句子和条款更高。该结果表明，住院记录的汇总需要比面向句子的处理更精细的粒度。尽管我们仅使用日本健康记录，但可以解释如下：医生从患者记录中提取“具有医学意义的概念”并重新组合它们...

随着最近的研究进展，深度学习模型已成为实时电信应用程序中声学回声取消（AEC）的有吸引力的选择。由于声学回声是音频质量差的主要来源之一，因此提出了各种各样的深层模型。但是，对良好回声取消质量的重要但经常忽略的要求是麦克风和远端信号的同步。通常，使用基于互相关的经典算法实现，对齐模块是具有已知设计限制的单独功能块。在我们的工作中，我们提出了一个基于内置自我注意的对准的深度学习体系结构，该架构能够处理不结盟的输入，从而改善了回声取消性能，同时简化了通信管道。此外，我们表明我们的方法可以在AEC挑战数据集中的真实记录上进行困难的延迟估计案例实现重大改进。

共享控制可以通过协助执行用户意图来帮助进行远程处理的对象操纵。为此，需要稳健和及时的意图估计，这取决于行为观察。在这里，提出了意图估计框架，该框架使用自然目光和运动功能来预测当前的动作和目标对象。该系统在模拟环境中进行了训练和测试，并在相对混乱的场景中和双手中产生的拾音器和放置序列，另一方面可能是手动。验证是在不同的用户和手中进行的，实现了预测的准确性和优势。对单个特征的预测能力的分析表明，在当前动作的早期识别中，抓握触发器和目光的凝视特征的优势。在当前的框架中，可以将相同的概率模型用于并行和独立工作的两只手，而提出了基于规则的模型来识别所得的双人动作。最后，讨论了这种方法对更复杂，全行为操纵的局限性和观点。

本文提出了一种通过视觉解释3D卷积神经网络（CNN）的决策过程的方法，并具有闭塞灵敏度分析的时间扩展。这里的关键思想是在输入3D时间空间数据空间中通过3D掩码遮住特定的数据，然后测量输出评分中的变更程度。产生较大变化程度的遮挡体积数据被认为是分类的更关键元素。但是，虽然通常使用遮挡敏感性分析来分析单个图像分类，但将此想法应用于视频分类并不是那么简单，因为简单的固定核心无法处理动作。为此，我们将3D遮挡掩模的形状调整为目标对象的复杂运动。通过考虑从输入视频数据中提取的光流的时间连续性和空间共存在，我们的灵活面膜适应性进行了。我们进一步建议通过使用分数的一阶部分导数相对于输入图像来降低其计算成本，以近似我们的方法。我们通过与删除/插入度量的常规方法和UCF-101上的指向度量来证明我们方法的有效性。该代码可在以下网址获得：https：//github.com/uchiyama33/aosa。