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Research on Belt and Road Big Data Visualization Based on Text Clustering Algorithm 基于文本聚类算法的“一带一路”大数据可视化研究
Yana Wen, Tingyue Wei, Kewei Cui, Bai Ling, Yahao Zhang, Meng Huang
In the era of big data, people's visual needs for data expression are increasing. In order to achieve better big data display effects, this article introduced the use of text clustering algorithms to achieve data crawling and Echarts technology to realize big data visualization. This system used mvvm's architecture and vue framework development platform, ThinkPHP was used as the background framework, and ES6 related technologies and specifications were used for application development. This system used Echarts, IView, GIS technology and JavaScript development methods to demonstrate economic big data module functions on the web side; Applied CSS3, HTML5, GIS technology to implement project achievement module and university alliance module; Applied Echarts, HTML5, JS function library technology to achieve national information module. This system used stored procedure, database index optimization technology to achieve rapid screening of massive data, and dynamically update and displayed related data through two-way data binding. This system combined real-time location technology with GIS technology to measure the distance between the user and the destination, and automatically plan the tour route to provide related services. This system can provide feasibility suggestions for strategic researchers or experts in related areas of the “Belt and Road”, and provide theoretical basis and technical support.
在大数据时代,人们对数据表达的视觉需求越来越大。为了实现更好的大数据显示效果,本文介绍了利用文本聚类算法实现数据爬行,利用Echarts技术实现大数据可视化。本系统采用mvvm的体系结构和vue框架开发平台,采用ThinkPHP作为后台框架,应用程序开发采用ES6相关技术和规范。本系统采用Echarts、IView、GIS技术和JavaScript开发方法,在web端展示经济大数据模块功能;应用CSS3、HTML5、GIS技术实现项目成果模块和高校联盟模块;应用Echarts、HTML5、JS函数库技术实现国家信息模块。本系统采用存储过程、数据库索引优化技术,实现对海量数据的快速筛选,并通过双向数据绑定实现相关数据的动态更新和显示。该系统将实时定位技术与GIS技术相结合,测量用户与目的地之间的距离,并自动规划游览路线,提供相关服务。该体系可为“一带一路”相关领域的战略研究者或专家提供可行性建议,提供理论依据和技术支撑。
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引用次数: 0
Implementing Game Strategies Based on Reinforcement Learning 基于强化学习的博弈策略实现
Botong Liu
Artificial intelligence (AI) technology such as reinforcement learning is increasingly used in playing game in recent years. A deep reinforcement learning model was used to play the game Flappy Bird. This paper aimed to let the computer play a simple game and get the corresponding data for AI learning. Game image was sequentially scaled, grayed, and adjusted for brightness. Before the current frame entered a state, the multi-dimensional image data of several frames of image superposition and combination was processed. Deep Q Network algorithm realized the best action prediction of the game execution in a specific game state, and successfully converted a game decision problem into the classification and recognition problem of instant multi-dimensional images and solved it with a convolutional neural network. After analysis, computer players controlled by deep neural networks had better results than human players. This experiment was a model combined between a deep neural network model and reinforcement learning, and could be applied in other games.
近年来,强化学习等人工智能技术越来越多地应用于游戏中。我们使用深度强化学习模型来玩《Flappy Bird》游戏。本文旨在让计算机玩一个简单的游戏,并获得相应的数据进行AI学习。游戏图像依次缩放、变灰和调整亮度。在当前帧进入状态之前,对多帧图像叠加组合的多维图像数据进行处理。Deep Q Network算法实现了在特定博弈状态下对博弈执行的最佳动作预测,成功地将博弈决策问题转化为即时多维图像的分类识别问题,并用卷积神经网络进行求解。经过分析,由深度神经网络控制的电脑选手比人类选手成绩更好。这个实验是一个深度神经网络模型和强化学习相结合的模型,可以应用到其他游戏中。
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引用次数: 3
An IoT Based Smart System to Recommend Suitable Environment 基于物联网的智能系统推荐合适的环境
M. Hasan, Anika Nawar, M. H. Khan, Lafifa Jamal
The demand for a smart monitoring system has been increased to reduce the impact of environmental pollution. In this paper, a smart system has been proposed that includes an IoT device which can monitor the pollution and explosion level of the septic tanks as well as the surroundings. The system can detect whether a particular area is environment friendly or not. A notification system has been designed that notifies the respective individual when there exists any risk factor in the environment. The proposed design has been compared with existing approaches. The proposed system has 93.78% accuracy, 95.68% precision, and 96.52 % recall. It shows 6.11%, 3.37%, and 1.84% improvement in terms of accuracy, precision, and recall respectively over the best existing approach.
为了减少环境污染的影响,对智能监测系统的需求已经增加。在本文中,提出了一个智能系统,其中包括一个物联网设备,可以监控化粪池以及周围环境的污染和爆炸水平。该系统可以检测特定区域是否对环境友好。我们设计了一个通知系统,当环境中存在任何风险因素时通知相应的个人。提出的设计与现有的方法进行了比较。该系统的准确率为93.78%,精密度为95.68%,召回率为96.52%。与现有的最佳方法相比,该方法在准确率、精密度和召回率方面分别提高了6.11%、3.37%和1.84%。
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引用次数: 0
Efficient Executions of Community Earth System Model onto Accelerators Using GPUs 基于gpu的社区地球系统模型在加速器上的高效执行
Shijin Yuan, Cheng Wang, Bin Mu, Xiaodan Luo
As the climate models become more and more complicated, we are facing an enormous challenge to run these models effectively. In this paper, we discuss the acceleration of the Community Earth System Model (CESM), which is a large-scaled model with MPI parallel, but still with low execution efficiency. We have conducted an efficient study on porting the Community Land Model (CLM) which an active component within CESM onto Graphics Processing Unit (GPU), and we focus on one major routine that occupies the most execution time, namely CanopyFluxes. To expedite computation, we have put tremendous effort into developing accelerated the CESM model using GPU to parallel computing. Specifically, we conducted CUDA kernel command to optimize some matrix computations in CanopyFluxes. For further optimization, GPU caches and compiler options are used. Running on a five computing nodes cluster with five GPUs, the CanopyFluxes routine achieves a speedup of 4.21x. While in the simulation on Tianhe-2 with NVIDIA Tesla K80 GPUs, the speedup of CanopyFluxes routine raises to 14.92x.
随着气候模型变得越来越复杂,如何有效地运行这些模型正面临着巨大的挑战。本文讨论了社区地球系统模型(Community Earth System Model, CESM)的加速问题,该模型是一个具有MPI并行的大尺度模型,但执行效率仍然较低。我们对社区土地模型(Community Land Model, CLM)这个CESM中的一个有效组件移植到图形处理单元(Graphics Processing Unit, GPU)上进行了有效的研究,重点研究了占用执行时间最多的一个主要例程,即CanopyFluxes。为了加快计算速度,我们投入了大量的精力来开发使用GPU进行并行计算的加速CESM模型。具体来说,我们使用CUDA内核命令来优化CanopyFluxes中的一些矩阵计算。为了进一步优化,使用了GPU缓存和编译器选项。运行在5个计算节点和5个gpu的集群上,CanopyFluxes例程实现了4.21倍的加速。在使用NVIDIA Tesla K80 gpu的天河二号上进行仿真时,canopyflux例程的加速提升到了14.92倍。
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引用次数: 1
LoRa Backscatter Automated Irrigation Approach: Reviewing and Proposed System LoRa反向散射自动灌溉方法:回顾与建议系统
Siaka Konate, Changli Li, Lizhong Xu
A migration to new irrigation techniques is needed in sub-Saharan African countries like Mali. The current irrigation system used in the country has flaws that need to be remedied. In this paper we will first present a literature review of different existing approaches of automatic irrigation systems, discuss their limits. Besides, we will propose an approach to an automatic irrigation system based on backscatter communication, which is more efficient and has a long-range and low power consumption.
像马里这样的撒哈拉以南非洲国家需要迁移到新的灌溉技术。该国目前使用的灌溉系统存在缺陷,需要加以纠正。在本文中,我们将首先提出的文献综述不同的现有方法的自动灌溉系统,讨论其局限性。此外,我们将提出一种基于反向散射通信的自动灌溉系统的方法,该方法效率更高,具有远程和低功耗的特点。
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引用次数: 2
Anomaly Detection of Bolt Tightening Process Based on Improved SMOTE 基于改进SMOTE的螺栓紧固过程异常检测
Xiaolei Li, Yuxin Wu, Q. Jia
For some industrial production processes, deep fault can be detected by data mining and data analytics of the process data. This can help to get a higher level of production quality. Anomaly detection of bolt tightening process was studied in this paper. Imbalanced data set is the main difficulty in this problem. An improved synthetic minority over-sampling technique (SMOTE) algorithm is proposed based on density-based spatial clustering of applications with noise (DBSCAN). By oversampling within-class imbalanced samples, the improved SMOTE algorithm can overcome the shortcomings of the traditional SMOTE method and can retain more sample features. As for the model feature extraction and classification, the sample classifier is trained by the Xgboost algorithm. An Experiment is carried out on a factory's real data set, which shows that the improved SMOTE algorithm can help to achieve great classification performance promotion.
对于某些工业生产过程,可以通过对过程数据的数据挖掘和数据分析来检测深度故障。这有助于获得更高水平的产品质量。对螺栓紧固过程中的异常检测进行了研究。不平衡数据集是该问题的主要难点。提出了一种基于噪声应用空间聚类(DBSCAN)的改进的合成少数派过采样技术(SMOTE)算法。改进SMOTE算法通过对类内不平衡样本进行过采样,克服了传统SMOTE方法的不足,保留了更多的样本特征。在模型特征提取和分类方面,使用Xgboost算法训练样本分类器。在一个工厂的真实数据集上进行了实验,实验结果表明,改进的SMOTE算法可以实现较大的分类性能提升。
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引用次数: 0
Using combined Soft-NMS algorithm Method with Faster R-CNN model for Skin Lesion Detection 结合Soft-NMS算法和更快的R-CNN模型进行皮肤损伤检测
Cheng Huang, Anyuan Yu, Honglin He
The detection of skin diseases has always been a hot topic in the medical field. With the development of deep learning, more and more neural network models have been used in medical research and have achieved good results. In this paper, based on the existing target detection model Faster R-CNN, we replace the NMS algorithm in it with Soft-NMS. The experimental results verify the effectiveness of our improvement. Compared with Faster R-CNN, our method can frame the skin disease area more accurately by reducing the misrecognized area of non-lesion areas. At the same time, our method can better deal with the situation of blurred boundaries of skin diseases. The data set we used comes from ISIC (International Skin Imaging Collaboration).
皮肤病的检测一直是医学界关注的热点问题。随着深度学习的发展,越来越多的神经网络模型被应用到医学研究中,并取得了良好的效果。本文在现有的Faster R-CNN目标检测模型的基础上,用Soft-NMS算法代替了其中的NMS算法。实验结果验证了改进的有效性。与Faster R-CNN相比,我们的方法通过减少非病变区域的误识别区域,可以更准确地框架皮肤病区域。同时,我们的方法可以更好地处理皮肤疾病边界模糊的情况。我们使用的数据集来自ISIC(国际皮肤成像合作组织)。
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引用次数: 0
Nodule Slices Detection based on Weak Labels with a Novel Deep Learning Method 基于弱标签的深度学习结节切片检测
Rongguo Zhang, Huiling Zhang, Shaokang Wang, Kuan Chen
Early detection of lung nodules is essential to the diagnosis and treatment of lung cancer. In this paper, we proposed an improved method to automatically identify the slices with lung nodules from computed tomography (CT). This deep learning-based method aimed to serve as a tool for the fast screening of lung nodules, in order to reduce CT reading time for radiologists. The proposed deep learning model combined convolutional neural networks (CNN) and variable length bidirectional Long Short-Term Memory networks (LSTM). It relied on a supervised learning approach that only required slice labels on the training dataset. The labels indicated the CT slices that contained a nodule, but not the exact location of the nodule. The proposed method was evaluated on two datasets with 5-fold cross-validation. The first dataset was collected from two 3A grade hospitals in China. It contained 1726 CT volumes (positives vs. negatives, 1:1). Each volume was labeled by at least three radiologists with more than five years of experience. The second dataset was the publicly available LIDC-IDRI database containing 888 scans, which underwent a two-phase annotation process by four experienced radiologists. For the first dataset, our method reached a high detection sensitivity of 88.2% with 0.5 false positives per CT volume. For the second dataset, we achieved a high sensitivity of 86.9% with an average of 0.8 false positives per subject. The results demonstrated that the proposed method achieved high sensitivity and specificity in identifying CT slices with lung nodules. Moreover, this study revealed that the proposed method has promising potential in reducing radiologists’ CT reading time, which only required slice labels on the training data for easy implementation.
早期发现肺结节对肺癌的诊断和治疗至关重要。本文提出了一种改进的CT肺结节切片自动识别方法。这种基于深度学习的方法旨在作为快速筛查肺结节的工具,以减少放射科医生的CT阅读时间。该深度学习模型结合了卷积神经网络(CNN)和可变长度双向长短期记忆网络(LSTM)。它依赖于一种监督学习方法,只需要训练数据集上的切片标签。标签显示的是CT切片上的结节,而不是结节的确切位置。该方法在两个数据集上进行了5倍交叉验证。第一个数据集来自中国两家三甲医院。包含1726个CT体积(阳性与阴性,1:1)。每卷都由至少三名具有五年以上经验的放射科医生标记。第二个数据集是公开的LIDC-IDRI数据库,包含888次扫描,由四位经验丰富的放射科医生进行了两阶段的注释过程。对于第一个数据集,我们的方法达到了88.2%的高检测灵敏度,每个CT体积有0.5个假阳性。对于第二个数据集,我们实现了86.9%的高灵敏度,平均每个受试者0.8个假阳性。结果表明,该方法对肺结节CT切片的鉴别具有较高的敏感性和特异性。此外,本研究表明,该方法在减少放射科医生的CT阅读时间方面具有很大的潜力,该方法只需要在训练数据上标记切片,便于实施。
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引用次数: 0
Classification of Liver Cancer Subtypes Based on Hierarchical Integrated Stacked Autoencoder 基于分层集成堆叠自编码器的肝癌亚型分类
Tiantian Zhang, Shuxu Zhao, Zhaoping Zhang
The development of high-throughput sequencing technology provides an opportunity to obtain multi-omics data for liver cancer,However,omics data often comes from different platforms and has different attributes, it has the characteristics of high feature dimension and small sample size. This will increase the overfitting of the model and the imbalance of categories,and the cross-platform integration analysis of omics data will challenge the traditional data analysis methods. In this regard, the Hierarchical Integrated Stacked Encoder (HI-SAE) is proposed.which can achieve deeper feature learning and data integration while reducing the differences caused by the characteristics of the data itself. Finally,the integrated feature expression is used to identify the subtype of liver cancer by softmax classifier. Experiments show that the classification accuracy when using Hi-SAE method for feature learning is 3.7% higher than that when using PCA, and 7.6% higher than that when using NMF.
高通量测序技术的发展为肝癌多组学数据的获取提供了契机,但组学数据往往来自不同的平台,具有不同的属性,具有特征维数高、样本量小的特点。这将增加模型的过拟合和类别的不平衡,组学数据的跨平台集成分析将挑战传统的数据分析方法。在这方面,提出了分层集成堆叠编码器(HI-SAE)。可以实现更深层次的特征学习和数据整合,同时减少数据本身的特征带来的差异。最后,采用softmax分类器将综合特征表达用于肝癌亚型识别。实验表明,使用Hi-SAE方法进行特征学习的分类准确率比使用PCA的分类准确率提高3.7%,比使用NMF的分类准确率提高7.6%。
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引用次数: 0
Low Light Image Enhancement Algorithm Based on Retinex and Dehazing Model 基于视网膜和去雾模型的弱光图像增强算法
Zijun Guo, Chao Wang
Low light images often have low visibility, which not only affects the visual effect, but also reduces the performance of algorithms that require high-quality input. Aiming at the problem of low light image enhancement, this paper proposes a composite enhancement algorithm. Firstly, the dark channel prior model and retinex model are combined by two adjustable parameters to obtain a new enhancement model DeRetinex. Then, according to the duality of the dehazing model and retinex theory, the image of the previous step is inverted, and the DeRetinex model is used for the second enhancement, which can eliminate the haze caused by enhancement. Compared with the existing mainstream algorithms, the proposed algorithm has the advantages of avoiding over exposure, rich texture details, low noise and high color recovery.
弱光图像往往具有较低的能见度,这不仅影响视觉效果,而且降低了需要高质量输入的算法的性能。针对弱光图像增强问题,提出了一种复合增强算法。首先,将暗通道先验模型和retinex模型通过两个可调参数组合,得到新的增强模型DeRetinex;然后,根据去雾模型和retinex理论的对偶性,对前一步的图像进行倒转,利用deetinex模型进行第二次增强,可以消除增强引起的雾霾。与现有主流算法相比,该算法具有避免过度曝光、纹理细节丰富、噪点低、色彩恢复率高等优点。
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引用次数: 1
期刊
Proceedings of the 6th International Conference on Robotics and Artificial Intelligence
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