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Target Tracking Method Based on Correlation Filter and Particle Filter 基于相关滤波和粒子滤波的目标跟踪方法
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35128
You You, Q. Gao, Yixiang Lu, Dong Sun
Object tracking is one of the most important tasks in computer vision, many researchers have proposed a lot of effective methods to solve the all kinds of the recent problems in object tracking. During the movement of the targets, the change of object scale may produce a lot of difficulties in object tracing problems, and it may lead to be failed in tracking. The paper proposed method is designed both correlation filter and particle filter. In order to achieve the purpose of tracking, the process of correlation filter is to learn an array of filters so that the response value obtained by the convolution of the learned filters is the largest. The particle filter guides the sample particles to the distribution mode of the target state. The samples of the particle strategy can effectively deal with the large scale variations of the target during movement. Experiment on the OTB database shows that the paper proposed method makes good performance.
目标跟踪是计算机视觉中最重要的任务之一,许多研究者提出了许多有效的方法来解决当前目标跟踪中的各种问题。在目标运动过程中,目标尺度的变化会给目标跟踪问题带来很多困难,甚至可能导致跟踪失败。本文提出的方法设计了相关滤波器和粒子滤波器。为了达到跟踪的目的,相关滤波器的过程是学习一组滤波器,使学习到的滤波器经过卷积得到的响应值最大。粒子滤波器将样本粒子引导到目标状态的分布模式。粒子策略的样本可以有效地处理目标在运动过程中的大规模变化。在OTB数据库上的实验表明,本文提出的方法具有良好的性能。
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引用次数: 0
An Extractive Chat Summary Generation Method for Ecommerce Chatbots 电子商务聊天机器人的抽取式聊天摘要生成方法
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35169
Daolin Han, Xiaojian Song, Yong Cui
The usage of chatbot for handling the conversations is gradually increasing. By using this technique, companies can provide a real-time and efficient channel to deliver the information to their users. Chatbot can response significant volume of frequent-asked and typical questions, which is bound to reduce the company human resource consumption. However, sometimes a chatbot cannot satisfy users with the provided answers, in such situation, chatbot should be transferred to an agent in order to handle the rest of the conversation. A concise summary of the user utterances helps the agent to handle the rest of the chat without raising annoying delay. Because the dialog between chatbots and user is fragmented and informal when compared to classic summarization dataset, high complexity models often have difficulty in achieving ideal results. In this paper, we present an extractive chat summarization system to provide a concise summary of the discussed topics in chat. We conclude three groups of critical and universally applicable features dedicated to summarization tasks and use the features to extract keywords for ranking sentences’ importance in the chat. We evaluate supervised and unsupervised methods for keyword extraction and generate the summary by combining selected sentences with specific rules. We compare our obtained results with two state-of-art, deep learning based methods over a new chatlog dataset. Experimental results reveal our method to be more effective and efficient than currently popular, high complexity methods.
使用聊天机器人来处理对话正在逐渐增加。通过使用这种技术,公司可以提供一个实时和有效的渠道来传递信息给他们的用户。聊天机器人可以回答大量的常见问题和典型问题,这必然会减少公司的人力资源消耗。然而,有时聊天机器人不能满足用户提供的答案,在这种情况下,聊天机器人应该转移到一个代理来处理其余的对话。用户话语的简洁总结有助于代理处理聊天的其余部分,而不会引起恼人的延迟。由于与经典的摘要数据集相比,聊天机器人和用户之间的对话是碎片化和非正式的,因此高复杂性模型通常难以获得理想的结果。在本文中,我们提出了一个抽取式聊天摘要系统,以提供聊天中讨论话题的简明摘要。我们总结了三组用于摘要任务的关键且普遍适用的特征,并使用这些特征提取关键字来对句子在聊天中的重要性进行排序。我们评估了有监督和无监督的关键字提取方法,并通过将选定的句子与特定规则相结合来生成摘要。我们将获得的结果与两种最先进的、基于深度学习的方法在一个新的聊天日志数据集上进行比较。实验结果表明,该方法比目前流行的高复杂度方法更有效。
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引用次数: 2
Counterfeit IC Detection Research Based on BP-AdaBoost Model and Genetic Algorithm 基于BP-AdaBoost模型和遗传算法的IC仿冒检测研究
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35142
Junyan Liu, Xiong-wei Li, Lin-fang Liu, Zhihui Wang, Panfei Du, Kang Li
In view of the increasingly prominent problems exposed by chips in integrated circuits and the destructive problems of traditional chip detection methods, a BPAdaBoost neural network model based on genetic algorithm optimization was proposed and applied to chip detection and classification. By using electromagnetic probes to collect the electromagnetic signals generated by different chips in the same operating state and using the electromagnetic radiation signals as the basis for chip identification and classification, the signals are put into the BP-AdaBoost model optimized by genetic algorithm for learning and training. Experimental results show that this method has good effect in the application of chip recognition and classification.
针对集成电路中芯片暴露的问题日益突出,以及传统芯片检测方法存在的破坏性问题,提出了一种基于遗传算法优化的BPAdaBoost神经网络模型,并将其应用于芯片检测与分类。利用电磁探头采集不同芯片在相同工作状态下产生的电磁信号,并将电磁辐射信号作为芯片识别和分类的依据,输入经遗传算法优化的BP-AdaBoost模型进行学习和训练。实验结果表明,该方法在芯片识别分类中具有良好的应用效果。
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引用次数: 0
Modeling and Simulation of CGF Aerial Targets for Simulation Training 面向仿真训练的CGF空中目标建模与仿真
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35167
Siqing Wang, Yunzhu Liu
Aiming at the requirement for the establishment of intelligent and autonomous targets for air defense weapon simulation training, this paper uses modular and componentized model structure to construct the framework and granular analysis of CGF air target modeling. In this paper, a target maneuvering model, a radar fire control model and an intelligent expert decision-making model are established, and there are two target construction methods: autonomous and controlled. The simulation experiment is conducted with a certain type of air defense weapon target simulator as the background. The results show that this model solves the problem of single target parameter in the CGF simulation training system, training complexity and lack of realism, and meets the requirements of simulation training and strengthens training. The immersion of the personnel has effectively improved the training level. And the component-based development model gives the model good reusability and interactivity.
针对防空武器仿真训练中智能自主目标的建立需求,采用模块化和组件化的模型结构,构建了CGF空中目标建模的框架和粒度分析。本文建立了目标机动模型、雷达火控模型和智能专家决策模型,并提出了自主和受控两种目标构建方法。仿真实验以某型防空武器目标模拟器为背景进行。结果表明,该模型解决了CGF仿真训练系统中目标参数单一、训练复杂、缺乏真实感的问题,满足了仿真训练的要求,加强了训练。人员的沉浸性有效地提高了培训水平。基于组件的开发模型使模型具有良好的可重用性和交互性。
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引用次数: 3
Research on Electromagnetic Force Performance of High Speed on-off Valve 高速开关阀电磁力性能研究
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35129
Shu Zong, Jun Xiao, Zhi-zhu Liu, Xiuhao Xi
Taking a high speed on-off valve as an example, the effects of air gap, shell thickness, armature length, guide sleeve type and armature radius on the electromagnetic force performance are studied. The results show that the air gap is negatively related to the electromagnetic force, the shell thickness, armature length and armature radius are positively related to the electromagnetic force, and the effect of pure copper guide sleeve and non-guide sleeve on the electromagnetic force is basically the same. The electromagnetic force can be increased by the guide sleeve with magnetic separation ring. The influence order of parameters on electromagnetic force is: air gap > armature radius increment > armature length increment > shell thickness increment.
以某高速开关阀为例,研究了气隙、阀壳厚度、电枢长度、导套类型、电枢半径等因素对开关阀电磁力性能的影响。结果表明:气隙与电磁力呈负相关,壳体厚度、电枢长度和电枢半径与电磁力呈正相关,纯铜导套和非导套对电磁力的影响基本相同。采用带磁选环的导套可增大电磁力。各参数对电磁力的影响顺序为:气隙>电枢半径增量>电枢长度增量>壳体厚度增量。
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引用次数: 0
Forecasting Method for Lockage Freight Volume of Three Gorges Dam Area Based on Optimized Grey Buffer Operator 基于优化灰色缓冲算子的三峡坝区船闸货运量预测方法
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35130
Ping Deng, Lian Song, Mi Zhang
In order to effectively predict the lockage freight volume of the Three Gorges Dam area, an improved grey prediction model for the lockage freight volume is proposed under the action of the optimized variable weight weakening buffer operator. By exploring the trend of the original data of freight volume, it is found that the original data sequence has the oscillation properties of "small sample" and "shock wave interference". The classical GM(1,1) model is difficult to simulate well for non-homogeneous exponential sequences and trend mutation sequences. So the method of constructing optimized variable weight weakening buffer operator is proposed by introducing accumulative transformation and translation transformation. On this basis, a new grey prediction model adapted to the lockage freight volume of the Three Gorges Dam area is established, and a case forecast is performed. By comparing and analyzing the prediction accuracy of the improved gray model and the traditional prediction model, it can be clearly seen that the improved gray model prediction accuracy of the optimized variable weight weakening buffer operator is significantly improved.
为了有效预测三峡坝区船闸货运量,提出了一种改进的变权弱化缓冲算子作用下的船闸货运量灰色预测模型。通过对货运量原始数据趋势的探索,发现原始数据序列具有“小样本”和“激波干扰”的振荡特性。对于非齐次指数序列和趋势突变序列,经典的GM(1,1)模型难以很好地模拟。为此,通过引入累积变换和平移变换,提出了构造优化变权弱化缓冲算子的方法。在此基础上,建立了适合三峡坝区船闸货运量的灰色预测模型,并进行了实例预测。通过对比分析改进的灰色模型与传统预测模型的预测精度,可以清楚地看到,优化后的变权弱化缓冲算子的改进灰色模型预测精度得到了显著提高。
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引用次数: 0
Overview of Digital Image Inpainting Technology 数字图像绘制技术综述
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35134
Xiangxiang Chen, Shu-Wen Wang, Jin Rong, Mengmeng Zhang, Wangchun Wu
As an important part of image processing, digital image inpainting is more and more widely used in daily life. Its main repair method is to automatically recover lost information based on the existing information of the damaged image. The article first explains the concept and application of image inpainting; secondly, it outlines the current main image inpainting techniques and main evaluation methods; and finally, the prospect of image inpainting techniques.
数字图像绘画作为图像处理的重要组成部分,在日常生活中得到越来越广泛的应用。其主要的修复方法是基于受损图像的现有信息自动恢复丢失信息。文章首先阐述了意象的概念及其在绘画中的应用;其次,概述了目前主要的图像绘画技术和主要的评价方法;最后,对图像绘画技术进行了展望。
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引用次数: 3
Elliptical Microlens Fabrication by Spatially Shaped Femtosecond Laser-assisted Chemical Etching 空间异形飞秒激光辅助化学刻蚀制备椭圆微透镜
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35133
Bin Qin
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引用次数: 0
Life Cycle Consulting of Engineering Construction Risk Evaluation Based Intuitionistic Fuzzy Sets and Euclidean Similarity 基于直觉模糊集和欧几里得相似度的工程建设风险评价生命周期咨询
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35172
Hongliang Yu, Hao Xu, Fuxiang Cong
This paper studies life cycle consulting of engineering construction risk. Firstly build a risk evaluation hierarchy for the life cycle consulting of engineering construction risk, and then transform expert evaluation information into intuitionistic fuzzy sets to form an evaluation matrix, use intuitionistic fuzzy entropy to describe the degree of fuzziness of expert information and determine the criterion weight; then use Euclidean distance to determine the similarity of expert information The expert weight is determined by combining the degree of hesitation with the degree of hesitation, and the score function is used to determine the comprehensive score value of each risk factor, and the risk factor is predicted accordingly.
本文对工程建设风险全生命周期咨询进行了研究。首先构建工程建设风险全生命周期咨询的风险评价层次,然后将专家评价信息转化为直觉模糊集形成评价矩阵,利用直觉模糊熵来描述专家信息的模糊程度,确定评判标准权重;然后利用欧几里得距离确定专家信息的相似度,结合犹豫程度和犹豫程度确定专家权重,并利用得分函数确定各风险因素的综合得分值,对风险因素进行预测。
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引用次数: 0
Boost PFC Constant Voltage Control with Constant Power Load Boost PFC恒压控制与恒功率负载
Pub Date : 2020-12-30 DOI: 10.12783/dtcse/cisnr2020/35135
Gang Li, Wei Qiu, Shuwei Li
The power factor correction (PFC) can be realized by the input-output linearization method for boost converter, The advantage is that the duty cycle of MOS transistor can be calculated directly without control parameter setting, but when the converter is connected to constant power load (CPL), because the duty cycle formula includes the ratio of output voltage to current, the load of Buck CPL has no current flow during the toff period, so the normal calculation results cannot be given. In order to solve the problem that the output duty cycle cannot be calculated, this paper starts from the relationship of equal input and output power, and merges resistance into the output terminal. At the same time, in order to reduce the power loss, the capacitor is connected to the original circuit to provide continuous current to correct the current discontinuity, and then the output voltage is precisely adjusted to realize the fast constant voltage control of Boost PFC converter under CPL.
功率因数校正(PFC)可通过升压变换器的输入输出线性化方法实现,其优点是无需设置控制参数即可直接计算MOS晶体管的占空比,但当变换器接恒功率负载(CPL)时,由于占空比公式包含输出电压与电流之比,Buck型CPL的负载在关断期间没有电流流过,因此无法给出正常的计算结果。为了解决输出占空比无法计算的问题,本文从输入输出功率相等的关系出发,将电阻合并到输出端。同时,为了降低功率损耗,将电容接在原电路上,提供连续电流,纠正电流不连续,然后精确调节输出电压,实现CPL下Boost PFC变换器的快速恒压控制。
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引用次数: 0
期刊
DEStech Transactions on Computer Science and Engineering
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