在这项研究中，我们调查了动态模式分解（DMD）算法的稳定性到嘈杂的数据。为了实现稳定的DMD算法，我们将截断的总，最小二乘（T-TLS）回归和最佳截断级别选择应用于TLS DMD算法。通过向TLS DMD算法添加截断正则化，T-TLS DMD可以提高计算的稳定性，同时保持TLS DMD的精度。通过对自助式细胞现象的圆筒和实际压敏涂料（PSP）数据的唤醒分析，评估T-TLS DMD的有效性。结果表明，正规化在DMD算法中的重要性。关于特征值，T-TLS DMD受到噪声的影响较小，并且可以稳定地获得精确的特征值，而TLS和子空间DMD的特征值可能由于噪音大大变化。如前所述，它还观察到标准的特征值和精确的DMD具有转移到阻尼侧的问题。关于特征向量，T-TLS和精确的DMD即使在存在噪声的情况下也明确地捕获了特征流模式，而TLS和子空间DMD不能由于噪音而清楚地捕获它们。

Language models have become increasingly popular in recent years for tasks like information retrieval. As use-cases become oriented toward specific domains, fine-tuning becomes default for standard performance. To fine-tune these models for specific tasks and datasets, it is necessary to carefully tune the model's hyperparameters and training techniques. In this paper, we present an in-depth analysis of the performance of four transformer-based language models on the task of biomedical information retrieval. The models we consider are DeepMind's RETRO (7B parameters), GPT-J (6B parameters), GPT-3 (175B parameters), and BLOOM (176B parameters). We compare their performance on the basis of relevance, accuracy, and interpretability, using a large corpus of 480000 research papers on protein structure/function prediction as our dataset. Our findings suggest that smaller models, with <10B parameters and fine-tuned on domain-specific datasets, tend to outperform larger language models on highly specific questions in terms of accuracy, relevancy, and interpretability by a significant margin (+50% on average). However, larger models do provide generally better results on broader prompts.

Collecting sufficient labeled data for spoken language understanding (SLU) is expensive and time-consuming. Recent studies achieved promising results by using pre-trained models in low-resource scenarios. Inspired by this, we aim to ask: which (if any) pre-training strategies can improve performance across SLU benchmarks? To answer this question, we employ four types of pre-trained models and their combinations for SLU. We leverage self-supervised speech and language models (LM) pre-trained on large quantities of unpaired data to extract strong speech and text representations. We also explore using supervised models pre-trained on larger external automatic speech recognition (ASR) or SLU corpora. We conduct extensive experiments on the SLU Evaluation (SLUE) benchmark and observe self-supervised pre-trained models to be more powerful, with pre-trained LM and speech models being most beneficial for the Sentiment Analysis and Named Entity Recognition task, respectively.

This study proposed a novel robotic gripper that can achieve grasping and infinite wrist twisting motions using a single actuator. The gripper is equipped with a differential gear mechanism that allows switching between the grasping and twisting motions according to the magnitude of the tip force applied to the finger. The grasping motion is activated when the tip force is below a set value, and the wrist twisting motion is activated when the tip force exceeds this value. "Twist grasping," a special grasping mode that allows the wrapping of a flexible thin object around the fingers of the gripper, can be achieved by the twisting motion. Twist grasping is effective for handling objects with flexible thin parts, such as laminated packaging pouches, that are difficult to grasp using conventional antipodal grasping. In this study, the gripper design is presented, and twist grasping is analyzed. The gripper performance is experimentally validated.

Robotic hands with soft surfaces can perform stable grasping, but the high friction of the soft surfaces makes it difficult to release objects, or to perform operations that require sliding. To solve this issue, we previously developed a contact area variable surface (CAVS), whose friction changed according to the load. However, only our fundamental results were previously presented, with detailed analyses not provided. In this study, we first investigated the CAVS friction anisotropy, and demonstrated that the longitudinal direction exhibited a larger ratio of friction change. Next, we proposed a sensible CAVS, capable of providing a variable-friction mechanism, and tested its sensing and control systems in operations requiring switching between sliding and stable-grasping modes. Friction sensing was performed using an embedded camera, and we developed a gripper using the sensible CAVS, considering the CAVS friction anisotropy. In CAVS, the low-friction mode corresponds to a small grasping force, while the high-friction mode corresponds to a greater grasping force. Therefore, by controlling only the friction mode, the gripper mode can be set to either the sliding or stable-grasping mode. Based on this feature, a methodology for controlling the contact mode was constructed. We demonstrated a manipulation involving sliding and stable grasping, and thus verified the efficacy of the developed sensible CAVS.

This letter proposes a novel single-fingered reconfigurable robotic gripper for grasping objects in narrow working spaces. The finger of the developed gripper realizes two configurations, namely, the insertion and grasping modes, using only a single motor. In the insertion mode, the finger assumes a thin shape such that it can insert its tip into a narrow space. The grasping mode of the finger is activated through a folding mechanism. Mode switching can be achieved in two ways: switching the mode actively by a motor, or combining passive rotation of the fingertip through contact with the support surface and active motorized construction of the claw. The latter approach is effective when it is unclear how much finger insertion is required for a specific task. The structure provides a simple control scheme. The performance of the proposed robotic gripper design and control methodology was experimentally evaluated. The minimum width of the insertion space required to grasp an object is 4 mm (1 mm, when using a strategy).

针对目标的对话任务的先前研究缺乏关键观念，该观念在以目标为导向的人工智能代理的背景下进行了深入研究。在这项研究中，我们提出了目标引导的开放域对话计划（TGCP）任务的任务，以评估神经对话代理是否具有目标对话计划的能力。使用TGCP任务，我们研究了现有检索模型和最新强生成模型的对话计划能力。实验结果揭示了当前技术面临的挑战。

点播（DOD）喷墨打印被认为是制造高级功能材料的有前途的技术之一。对于DOD打印机，长期用于实现无卫星较小液滴的高精度分配技术，长期以来一直在构图薄膜结构。本研究认为，分配喷嘴上游的液体室的入口速度是控制变量，旨在使用样品效率高的贝叶斯优化算法优化其波形。首先，液滴分配动力学是通过使用开源OpenFOAM求解器，InterFOAM进行数值复制的，并且结果将传递给基于Pyfoam的另一个代码。然后，表征驱动DOD打印机的参数由贝叶斯优化（BO）算法确定，以最大化规定的多目标函数，该函数表示为两个因素的总和，即主液滴的大小和主要液滴的大小和卫星液滴的存在。结果表明，当前的BO算法可以在150个模拟中成功找到高精度分配波形。具体而言，可以有效消除卫星液滴，并通过施加最佳波形，可以将液滴直径显着降低至喷嘴直径的24.9％。

基准，如Coco，在物体检测中发挥至关重要的作用。然而，现有的基准在规模变化中不足，他们的协议不足以进行公平比较。在本文中，我们介绍了通用尺度对象检测基准（USB）。 USB通过将Coco与最近提出的Waymo Open DataSet和Manga109-S数据集合并了Coco，USB具有对象尺度和图像域的变化。为了实现公平的比较和包容性研究，我们提出了培训和评估议定书。它们有多个部门用于培训时期和评估图像分辨率，如体育中的重量类，以及跨训练协议的兼容性，如通用串行总线的后向兼容性。具体而言，我们要求参与者报告结果，不仅具有更高的协议（更长的培训），而且还有更低的协议（较短培训）。使用所提出的基准和协议，我们分析了八种方法，发现了现有的Coco-偏偏见方法的缺点。代码可在https://github.com/shinya7y/universenet上获得。