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Genetic algorithm for Traveling Salesman Problem 旅行商问题的遗传算法
Haojie Xu, Yisu Ge, Guodao Zhang
Traveling Salesman Problem (TSP) is one of the most famous NP-hard problems which is hard to find an optimal solution. Many heuristic algorithms are applied to find a suboptimal solution in a limited time. In this paper, we employ a Genetic Algorithm (GA) to solve the TSP, and a further study is conducted by evaluating the performance of different crossover and mutation methods with a heuristic strategy. Four experiments with different parameters are designed, which apply instances from benchmark TSPLIB. Partial-mapped crossover and rotate mutation with offspring-parent competition strategy has shown efficient gets the best results.
旅行商问题(TSP)是最难以找到最优解的np困难问题之一。许多启发式算法被用于在有限时间内找到次优解。本文采用遗传算法求解TSP,并利用启发式策略对不同交叉和变异方法的性能进行了评价。以TSPLIB为例,设计了4个不同参数的实验。部分映射交叉和旋转突变结合子代-亲代竞争策略得到了最优的结果。
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引用次数: 1
The Spatial Topological Shape of the Rough Surface is Simulated and Generated by a New Gaussian Filtering Algorithm 采用一种新的高斯滤波算法模拟并生成了粗糙表面的空间拓扑形状
Jianan Zhang, Min Yang, Can Zhao, Cheng-Wu Liu
The physical properties of rough surfaces are important research objects in geometry and tribology. The reason why rough surfaces are widely used in many fields is that their spatial topologies are uneven geometric shapes. In order to simulate the spatial topology of the rough surface, based on Gaussian distribution, numerical filtering, topology analysis and mathematical derivation, a new simulation algorithm for accurately generating rough surfaces with different features is established with five parameters. Roughness parameters, autocorrelation parameters, anisotropy parameters can be precisely controlled by algorithms, and the parameters are independent of each other. After experimental verification, the simulation results generated by the algorithm are similar to the real shape, and the numerical statistical results tend to converge.
粗糙表面的物理性质是几何和摩擦学领域的重要研究对象。粗糙表面之所以在许多领域得到广泛应用,是因为它们的空间拓扑结构是不均匀的几何形状。为了模拟粗糙表面的空间拓扑结构,基于高斯分布、数值滤波、拓扑分析和数学推导,建立了一种具有5个参数的精确生成不同特征粗糙表面的新仿真算法。粗糙度参数、自相关参数、各向异性参数均可通过算法进行精确控制,且参数之间相互独立。经过实验验证,该算法生成的仿真结果与真实形状较为接近,且数值统计结果趋于收敛。
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引用次数: 0
Research on the Design of Shared Intelligent Pet Management Cage in the Context of Mobile Internet 移动互联网环境下共享智能宠物管理笼的设计研究
Xiaolong Hu, Ruiting Zhang, Zefan Zhang
Through statistical analysis, it is found that with the development of social and economic development, people's income level and quality of life continue to improve, more and more people begin to enjoy intelligent life. According to the survey the proportion of people who care for pets is increasing, and the demand for intelligent pet cages is also increasing. This project designs a shared intelligent pet management cage based on mobile internet to address the defects of traditional pet cages. The intelligent pet cage based on the Internet of Things also has many advantages such as remote control, scene control, timing control, intelligent linkage, and security prevention. Through WiFi technology, the intelligent service control terminal and environmental monitoring equipment are integrated to ensure the health of pets, monitor pet activities and facilitate interaction between pet owners at all times, so as to jointly create a civilized community and make pets properly integrated into people's lives.
通过统计分析发现,随着社会经济的发展,人们的收入水平和生活质量不断提高,越来越多的人开始享受智能化生活。据调查,养宠物的人比例越来越高,对智能宠物笼的需求也越来越大。本课题针对传统宠物笼的缺陷,设计了一种基于移动互联网的共享智能宠物管理笼。基于物联网的智能宠物笼还具有远程控制、场景控制、定时控制、智能联动、安全防范等诸多优势。通过WiFi技术,集成智能服务控制终端和环境监测设备,保障宠物健康,监控宠物活动,随时方便宠物主人之间的互动,共同打造文明社区,让宠物适当融入人们的生活。
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引用次数: 0
Research on Object Tracking Technology Based on Region Proposal Siamese Network 基于区域提议暹罗网络的目标跟踪技术研究
Zhe Gu, Yanjing Lei, Di Cao, Lue Zhan
Most of the existing trackers have high performance and good effect, but it is difficult to have fast speed and can not meet the real-time requirements. Therefore, the development of target tracking system with high accuracy and good robustness has become an urgent task for researchers. This paper proposes to add an Region Proposal Network (RPN) module based on the structure of the traditional Siamese Network (SiamFC), calculate the template and branch of the Siamese sub network in advance in the reasoning stage, and decompose the tracking task into task nodes that are detected first and then matched for real-time online tracking. The experimental results on VOT2015, VOT2018 and OTB2015 data sets show that compared with other trackers, the model based on SiamRPN proposed in this paper shows better performance in achieving the dual goals of high accuracy and low robustness.
现有的大多数跟踪器性能高,效果好,但速度快,不能满足实时性要求。因此,开发高精度、鲁棒性好的目标跟踪系统已成为研究人员迫切需要解决的问题。本文提出在传统连体网络(SiamFC)结构的基础上增加区域建议网络(RPN)模块,在推理阶段提前计算连体子网络的模板和分支,并将跟踪任务分解为先检测后匹配的任务节点进行实时在线跟踪。在VOT2015、VOT2018和OTB2015数据集上的实验结果表明,与其他跟踪器相比,本文提出的基于SiamRPN的模型在实现高精度和低鲁棒性的双重目标方面表现出更好的性能。
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引用次数: 0
Route Optimization for Sailing Vessels using Artificial Intelligence Techniques 基于人工智能技术的帆船航线优化
John M. Anderson, S. Sithungu, E. M. Ehlers
Sailing is not a new concept. The use of artificial intelligence (AI) within the field of sailing however is a relatively new concept. AI is being applied to a variety of different aspects within the field of sailing such as AI plotting unmanned vessels across the globe as well as in the optimization of racing vessels in a variety of prestigious regatta. This paper aims to explore the application of AI to the route creation and plotting aspect of AI in sailing, the objective being to create a system that efficiently assists sailors with their route creation within a complex environment. The approach used is through the creation of a model that uses an adapted A* (star) search algorithm where the weightings of the heuristic values used better represent the costs associated with the complex environment the algorithm operates in. The environment devised in this paper is a combination of geographical and meteorological data and coordinates to create a semi-dynamic environment in which the system operates. The resulting system successfully creates optimized routes within the semi-dynamic environment devised by the system.
帆船不是一个新概念。然而,在帆船领域使用人工智能(AI)是一个相对较新的概念。人工智能在世界范围内的无人船绘制、各种知名帆船赛的赛艇优化等航海领域得到了广泛的应用。本文旨在探索人工智能在航行中路线创建和绘图方面的应用,目的是创建一个系统,在复杂的环境中有效地帮助水手创建路线。所使用的方法是通过创建一个模型,该模型使用经过调整的a *(星型)搜索算法,其中所使用的启发式值的权重更好地表示与算法运行的复杂环境相关的成本。本文设计的环境是地理和气象数据和坐标的组合,以创建系统运行的半动态环境。该系统成功地在半动态环境中创建了优化的路线。
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引用次数: 0
A Gene Expression Programming Inspired Evolution Symbiont Agent for Real-Time Strategy Generation 基于基因表达编程的实时策略生成进化共生代理
S. Sithungu, E. M. Ehlers
AdaptiveSGA is a method for achieving Adaptive Game Artificial Intelligence-Based Dynamic Difficulty Balancing through the Symbiotic Game Agent Model. Previous work has shown that AdaptiveSGA can achieve Dynamic Difficulty Balancing in simulated soccer by effectively changing a team's strategy based on the opponent's performance. AdaptiveSGA pre-existing strategies and switches between them during runtime to increase the game's replayability by adapting the challenge it poses to the human player. Although this method works, its limitation is that if the human player surpasses the most intelligent strategy of the computer opponent, there is no way for the model to generate a new strategy during runtime that can potentially overcome the human player. AdaptiveSGA can only maintain engagement with the human player if the human player has not overcome the best strategy for the pool of pre-existing strategies. Current work addresses this limitation by introducing an Evolution Symbiont Agent whose purpose is to generate new strategies in real-time (during gameplay) through evolutionary mechanisms using Gene Expression Programming. Experimental results show that the presence of the evolution symbiont agent can use Gene Expression Programming to generate strategies capable of outperforming an opposing strategy.
AdaptiveSGA是一种通过共生博弈代理模型实现基于自适应博弈人工智能的动态难度平衡的方法。之前的研究表明,AdaptiveSGA可以根据对手的表现有效地改变球队的策略,从而在模拟足球中实现动态难度平衡。适应性ga预先存在的策略,并在运行时在它们之间切换,通过调整游戏对人类玩家的挑战来增加游戏的重玩性。尽管这种方法是有效的,但它的局限性在于,如果人类玩家超过了计算机对手最聪明的策略,那么模型就无法在运行期间生成新的策略,从而有可能战胜人类玩家。只有当人类玩家没有克服预先存在的策略池中的最佳策略时,AdaptiveSGA才能保持与人类玩家的互动。目前的工作通过引入进化共生代理来解决这一限制,该代理的目的是通过使用基因表达编程的进化机制实时(在游戏过程中)生成新的策略。实验结果表明,进化共生因子的存在可以使用基因表达编程来生成能够胜过对手策略的策略。
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引用次数: 0
Traffic Incident Detection System Based on Video Analysis 基于视频分析的交通事件检测系统
Zhe Gu, Yanjing Lei, Sixian Chan, Di Cao, Kongkai Zhang
With the increasing urbanization and the popularity of traffic video surveillance, and the rapid development of object detection algorithms, object detection of traffic events through video analysis has become possible. This paper proposes the design and implementation of a traffic event detection system based on video analysis. Firstly, the video stream is processed, mainly for video access and display, and the compression of neural networks achieves the network acceleration. Secondly, the structured information of vehicles is obtained by nighttime vehicle detection and joint detection and tracking. Finally, the car's driving behavior is analyzed through video calibration and video analysis. The system has been used online in many places in China and has achieved remarkable results.
随着城市化程度的提高和交通视频监控的普及,以及目标检测算法的快速发展,通过视频分析对交通事件进行目标检测已经成为可能。本文提出了一种基于视频分析的交通事件检测系统的设计与实现。首先对视频流进行处理,主要用于视频的访问和显示,利用神经网络的压缩实现网络加速;其次,通过夜间车辆检测和联合检测跟踪,获得车辆的结构化信息;最后,通过视频标定和视频分析对汽车的驾驶行为进行分析。该系统已在国内多地上线使用,并取得了显著效果。
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引用次数: 0
Single Node Acceleration of Generative Adversarial Networks using HPC for Image Analytics 基于HPC的图像分析生成对抗网络的单节点加速
A. Ravikumar, H. Sriraman
Generative Adversarial Networks (GAN) are approaches that are utilized for data augmentation, which facilitates the development of more accurate detection models for unusual or unbalanced datasets. Computer-assisted diagnostic methods may be made more reliable by using synthetic pictures generated by GAN. Generative adversarial networks are challenging to train because too unpredictable training dynamics may occur throughout the learning process, such as model collapse and vanishing gradients. For accurate and faster results the GAN network need to trained in parallel and distributed manner. We enhance the speed and precision of the Deep Convolutional Generative Adversarial Networks (DCGAN) architecture by using its parallelism and executing it on High-Performance Computing platforms. The effective analysis of a DCGAN in Graphic Processing Unit and Tensor Processing Unit platforms in which each layer execution pattern is analyzed. The bottleneck is identified for the GAN structure for each execution platforms. The Central Processing Unit is capable of processing neural network models, but it requires a great deal of time to do it. Graphic Processing Unit in contrast, side, are a hundred times quicker than CPUs for Neural Networks, however, they are prohibitively expensive compared to CPUs. Using the systolic array structure, TPU performs well on neural networks with high batch sizes but in GAN the shift between CPU and TPU is huge so it does not perform well.
生成对抗网络(GAN)是用于数据增强的方法,它有助于为异常或不平衡数据集开发更准确的检测模型。使用GAN生成的合成图像可以使计算机辅助诊断方法更加可靠。生成对抗网络的训练具有挑战性,因为在整个学习过程中可能会出现不可预测的训练动态,例如模型崩溃和梯度消失。为了获得准确和快速的结果,GAN网络需要采用并行和分布式的方式进行训练。我们利用深度卷积生成对抗网络(Deep Convolutional Generative Adversarial Networks, DCGAN)架构的并行性,并在高性能计算平台上执行该架构,以提高其速度和精度。在图形处理单元和张量处理单元平台上对DCGAN进行了有效的分析,分析了各层的执行模式。确定了每个执行平台的GAN结构的瓶颈。中央处理单元能够处理神经网络模型,但需要大量的时间来完成。相比之下,图形处理单元比用于神经网络的cpu快100倍,然而,与cpu相比,它们的价格昂贵得令人望而却步。采用收缩阵列结构,TPU在高批处理的神经网络上表现良好,但在GAN中CPU和TPU之间的转换很大,因此性能不佳。
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引用次数: 0
Jaccard Index in Ensemble Image Segmentation: An Approach Jaccard索引在集成图像分割中的应用
Daniel Ogwok, E. M. Ehlers
Many methods have been applied to image segmentation, including unsupervised, supervised, and even deep learning-based models. Semantic and instance segmentation are the two most widely researched forms of segmentation. It is of value to use multiple methods to segment an image. In this paper, we present an image segmentation ensemble methodology. Multiple image segmentation methods are applied to an image and merged to create one segmentation using the proposed method. The technique uses the Jaccard index algorithm, sometimes called the Jaccard similarity coefficient and commonly known as Intersection over Union (IoU). This resulted in better segmentation results than the respective individual segmentation methods. This experiment was applied to mathematical expression recognition (MER), with the expressions taken from blackboards with varying degrees of noise, and lighting conditions, from different classroom environments. A summary of empirical results from the segmentation of multiple images is presented in the paper.
许多方法已经应用于图像分割,包括无监督、有监督,甚至是基于深度学习的模型。语义分词和实例分词是研究最广泛的两种分词形式。使用多种方法分割图像是有价值的。本文提出了一种图像分割集成方法。将多种图像分割方法应用于一幅图像,并使用该方法合并形成一个图像分割。该技术使用Jaccard索引算法,有时称为Jaccard相似系数,通常称为交联(IoU)。这导致了比各自的单独分割方法更好的分割结果。该实验应用于数学表情识别(MER),在不同的教室环境中,在不同程度的噪音和光照条件下,黑板上的表情。本文对多幅图像分割的实验结果进行了总结。
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引用次数: 1
Stage-Terrain-Power Model Based on Analytic Hierarchy Process 基于层次分析法的阶段-地形-力量模型
Boyu Zang, Jishen Zhao
As a means of transportation, bicycle has brought great convenience for human travel and exercise. With the popularization of bicycle, more and more cross-country time trial bicycle races have begun to rise. Based on this, this paper adopts Pontryagin's Maximum Principles and analytic hierarchy Process respectively to establish mechanical model and terrain analysis model, and evaluates the comprehensive quality of racers based on their race types, while considering the influence of various factors such as weather environment. In this paper, the power distribution of racers in different terrains and time periods is analyzed, and the model is applied to a typical track to obtain the power distribution diagram of racers achieving the best results.
自行车作为一种交通工具,给人们的出行和锻炼带来了极大的方便。随着自行车的普及,越来越多的自行车越野计时赛开始兴起。在此基础上,本文分别采用庞特里亚金极大值原理和层次分析法建立力学模型和地形分析模型,在考虑天气环境等多种因素影响的情况下,根据赛事类型对选手的综合素质进行评价。本文分析了赛车手在不同地形、不同时段的功率分布,并将该模型应用于某典型赛道,得到了取得最佳成绩的赛车手功率分布图。
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引用次数: 0
期刊
Proceedings of the 2022 5th International Conference on Computational Intelligence and Intelligent Systems
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