在时间序列预测的各种软计算方法中,模糊认知地图(FCM)已经显示出显着的结果作为模拟和分析复杂系统动态的工具。 FCM具有与经常性神经网络的相似之处,可以被分类为神经模糊方法。换句话说,FCMS是模糊逻辑,神经网络和专家系统方面的混合,它作为模拟和研究复杂系统的动态行为的强大工具。最有趣的特征是知识解释性,动态特征和学习能力。本调查纸的目标主要是在文献中提出的最相关和最近的基于FCCM的时间序列预测模型概述。此外,本文认为介绍FCM模型和学习方法的基础。此外,该调查提供了一些旨在提高FCM的能力的一些想法,以便在处理非稳定性数据和可扩展性问题等现实实验中涵盖一些挑战。此外,具有快速学习算法的FCMS是该领域的主要问题之一。
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模糊认知地图(FCMS)被出现为可解释的签名加权数字化方法,其由代表概念之间的依赖性的节点(概念)和权重。虽然FCMS在各种时间序列预测应用中取得了相当大的成果,但设计了具有较节约的训练方法的FCM模型仍然是一个开放的挑战。因此,本文介绍了一种新颖的单变量时间序列预测技术,该技术由标记为R-HFCM的一组随机高阶FCM模型组成。提出的R-HFCM模型的新颖性与将FCM和回声状态网络(ESN)的概念合并为高效且特定的储层计算(RC)模型系列,其中应用于训练模型的最小二乘算法。从另一个角度来看,R-HFCM的结构包括输入层,储存层和输出层,其中仅输出层是可训练的,同时在训练过程中随机选择每个子储存组件的重量并保持恒定。如案例研究,该模型考虑了与巴西太阳能站以及马来西亚数据集的公共数据的太阳能预测,包括马来西亚市柔佛市电源公司的每小时电负荷和温度数据。实验还包括地图尺寸,激活功能,偏置的存在和储存器的尺寸的效果,储存器的尺寸为R-HFCM方法的准确性。所获得的结果证实了所提出的R-HFCM模型与其他方法相比表现。本研究提供了证据表明,FCM可以是在时间序列建模中实施动态储存的新方法。
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预测住宅功率使用对于辅助智能电网来管理和保护能量以确保有效使用的必不可少。客户级别的准确能量预测将直接反映电网系统的效率,但由于许多影响因素,例如气象和占用模式,预测建筑能源使用是复杂的任务。在成瘾中,鉴于多传感器环境的出现以及能量消费者和智能电网之间的两种方式通信,在能量互联网(IOE)中,高维时间序列越来越多地出现。因此,能够计算高维时间序列的方法在智能建筑和IOE应用中具有很大的价值。模糊时间序列(FTS)模型作为数据驱动的非参数模型的易于实现和高精度。不幸的是,如果所有功能用于训练模型,现有的FTS模型可能是不可行的。我们通过将原始高维数据投入低维嵌入空间并在该低维表示中使用多变量FTS方法来提出一种用于处理高维时间序列的新方法。组合这些技术使得能够更好地表示多变量时间序列的复杂内容和更准确的预测。
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We propose a technique for learning single-view 3D object pose estimation models by utilizing a new source of data -- in-the-wild videos where objects turn. Such videos are prevalent in practice (e.g., cars in roundabouts, airplanes near runways) and easy to collect. We show that classical structure-from-motion algorithms, coupled with the recent advances in instance detection and feature matching, provides surprisingly accurate relative 3D pose estimation on such videos. We propose a multi-stage training scheme that first learns a canonical pose across a collection of videos and then supervises a model for single-view pose estimation. The proposed technique achieves competitive performance with respect to existing state-of-the-art on standard benchmarks for 3D pose estimation, without requiring any pose labels during training. We also contribute an Accidental Turntables Dataset, containing a challenging set of 41,212 images of cars in cluttered backgrounds, motion blur and illumination changes that serves as a benchmark for 3D pose estimation.
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Text classification is a natural language processing (NLP) task relevant to many commercial applications, like e-commerce and customer service. Naturally, classifying such excerpts accurately often represents a challenge, due to intrinsic language aspects, like irony and nuance. To accomplish this task, one must provide a robust numerical representation for documents, a process known as embedding. Embedding represents a key NLP field nowadays, having faced a significant advance in the last decade, especially after the introduction of the word-to-vector concept and the popularization of Deep Learning models for solving NLP tasks, including Convolutional Neural Networks (CNNs), Recurrent Neural Networks (RNNs), and Transformer-based Language Models (TLMs). Despite the impressive achievements in this field, the literature coverage regarding generating embeddings for Brazilian Portuguese texts is scarce, especially when considering commercial user reviews. Therefore, this work aims to provide a comprehensive experimental study of embedding approaches targeting a binary sentiment classification of user reviews in Brazilian Portuguese. This study includes from classical (Bag-of-Words) to state-of-the-art (Transformer-based) NLP models. The methods are evaluated with five open-source databases with pre-defined data partitions made available in an open digital repository to encourage reproducibility. The Fine-tuned TLMs achieved the best results for all cases, being followed by the Feature-based TLM, LSTM, and CNN, with alternate ranks, depending on the database under analysis.
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Semantic Machines (SM) have introduced the use of the dataflow (DF) paradigm to dialogue modelling, using computational graphs to hierarchically represent user requests, data, and the dialogue history [Semantic Machines et al. 2020]. Although the main focus of that paper was the SMCalFlow dataset (to date, the only dataset with "native" DF annotations), they also reported some results of an experiment using a transformed version of the commonly used MultiWOZ dataset [Budzianowski et al. 2018] into a DF format. In this paper, we expand the experiments using DF for the MultiWOZ dataset, exploring some additional experimental set-ups. The code and instructions to reproduce the experiments reported here have been released. The contributions of this paper are: 1.) A DF implementation capable of executing MultiWOZ dialogues; 2.) Several versions of conversion of MultiWOZ into a DF format are presented; 3.) Experimental results on state match and translation accuracy.
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这封信提出了一个系统的模块化过程,用于组成几个子系统的分支机器人的动态建模,每个系统由多个刚体组成。此外,即使某些子系统被视为黑匣子,提出的策略也适用,仅需要在不同子系统之间的连接点上的曲折和扳手。为了帮助模型组成,我们还提出了一个图表表示,该图表编码子系统之间的曲折和扳手的传播。数值结果表明,所提出的形式主义与用于机器人动力学建模的最新库一样准确。
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这项工作介绍了一种在开放世界游戏中为非演奏世界运动而创作非玩家角色(NPC)的社会建筑模型的实施,该游戏受到基于代理建模的学术研究的启发。就丰富的对话和响应行为而言,可信的NPC创作是繁重的。我们简要介绍了为此任务使用社会代理体系结构的特征和优势,并描述了社会代理体系结构CIF-CK作为Mod Social NPC的实现
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我们提出了一种微调方法,可以改善从单个图像重建的3D几何形状的外观。我们利用单眼深度估计的进步来获得差异图,并提出了一种新颖的方法,可以通过求解相关摄像机参数的优化,将2D归一化差异图转换为3D点云,在从差异中创建3D点云后,我们引入了一种方法来引入一种方法将新点云与现有信息结合在一起,形成更忠实,更详细的最终几何形状。我们通过在合成图像和真实图像上进行多个实验证明了方法的功效。
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我们提出了PlanarRecon-从摆姿势的单眼视频中对3D平面进行全球连贯检测和重建的新型框架。与以前的作品从单个图像中检测到2D的平面不同,PlanarRecon逐步检测每个视频片段中的3D平面,该片段由一组关键帧组成,由一组关键帧组成,使用神经网络的场景体积表示。基于学习的跟踪和融合模块旨在合并以前片段的平面以形成连贯的全球平面重建。这种设计使PlanarRecon可以在每个片段中的多个视图中整合观察结果,并在不同的信息中整合了时间信息,从而使场景抽象的准确且相干地重建具有低聚合物的几何形状。实验表明,所提出的方法在实时时可以在扫描仪数据集上实现最先进的性能。
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