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Case Report on Semiconductor Company ABCtronics 半导体公司ABCtronics案例报告
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00080
Duwei Xiang
In semiconductor production lines, uncertainties about the health of processes and wafers usually lead to "major scrap events" and higher costs. The industry focuses on quality assurance processes. ABCtronics’ plant is facing the problem of downtime which is a matter of concern for semiconductor companies. By observation, the pattern follows Gamma distribution. Thus, the ion-implanter of the IC chips ought to be replaced. After calculations of Beta Distribution are done, it shows that the company’s original fabrication process is in good shape. The QRT has proposed a quality control policy Chip Testing Method (ICTM) to replace the existing policy Individual Lot Acceptance Testing Method (LATM). There are two types of distributions chosen, Hypergeometric and Beta Distribution. Both shows that the new manufacturing technology adopted by ICTM can effectively improve the accepted rate of chips. From observing our data, we know that the time before IC chip failure (in years) is exponentially distributed. There is a very high chance that ABCtronics will meet the expectations of PQRsystems for having a product lifetime of 6 years or higher. Multiple linear regression model has better explanatory power. We consider the industry overall is experiencing a medium level demand.
在半导体生产线上,有关工艺和晶圆健康状况的不确定性通常会导致“重大报废事件”和更高的成本。该行业专注于质量保证过程。ABCtronics的工厂正面临着停机问题,这是半导体公司关心的问题。经观察,该模式服从伽玛分布。因此,应该更换集成电路芯片的离子注入器。经过Beta分布的计算,表明该公司的原始制造工艺处于良好状态。QRT提出了一项质量控制政策,芯片测试方法(ICTM),以取代现有的政策,个别批次验收测试方法(LATM)。有两种类型的分布选择,超几何分布和Beta分布。两者都表明,ICTM采用的新型制造技术可以有效提高芯片的合格率。通过观察我们的数据,我们知道IC芯片失效前的时间(以年为单位)呈指数分布。ABCtronics很有可能满足pqr系统的期望,产品寿命为6年或更高。多元线性回归模型具有较好的解释力。我们认为整个行业的需求处于中等水平。
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引用次数: 0
A Store Entity Identification Method Based on Deep Learning 基于深度学习的存储实体识别方法
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00037
Xin Pengzhe, Deng Qianyu
In recent years, the development of deep learning has led to unprecedented advances in computer vision, making it possible to use artificial intelligence to identify shop names. This paper proposes a store entity identification system based on deep learning, which consists of three modules. The text detection module adopts Cascade Mask R-CNN. The text recognition module adopts Attention LSTM. The named entity recognition module adopts Bert-BiLSTM-CRF. It can recognize all the text information in the picture and extract the shop name accurately. The final score can reach 91.12%. Our research saves the time of traditional manual extraction of the shop name in the picture, and provides technical support for the intelligent development of the shop management system.
近年来,深度学习的发展使计算机视觉取得了前所未有的进步,使使用人工智能识别商店名称成为可能。本文提出了一种基于深度学习的商店实体识别系统,该系统由三个模块组成。文本检测模块采用级联掩码R-CNN。文本识别模块采用注意力LSTM。命名实体识别模块采用Bert-BiLSTM-CRF。它可以识别图片中的所有文字信息,并准确地提取出店铺名称。最终得分可达91.12%。我们的研究节省了传统手工提取图片中店铺名称的时间,为店铺管理系统的智能化开发提供了技术支持。
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引用次数: 0
Design of "Blockchain Plus" intelligent parking matching guidance system “区块链+”智能停车匹配引导系统设计
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00053
Yuxia Zhang, Qiuxiang Wu, Bingquan Wu, Xiang-lin Pan, Fei Liang
The "Blockchain Plus" intelligent parking matching guidance system was designed on the basis of the analysis of the technologies of blockchain, parking space reservations, parking matching guidance, vehicle service navigation. The system consists of application layer, blockchain technical service layer, network layer, and data layer, using blockchain technologies such as aggregation chain architecture based consensus algorithm services, smart contract services, and anti-counterfeiting verification supported by digital DNA, to provide services such as parking space reservation, intelligent matching parking space, vehicle service navigation to optimize parking matching, parking searching, and parking route guidance. The system performance test shows that the average matching time, average parking searching time, average parking index, average parking success rate and other performance data are better than other similar parking service systems. Therefore, this system can offer a proven help to solve the problems including unbalanced supply and demand of parking space in urban area, travel difficulties and so on.
“区块链+”智能停车匹配引导系统是在分析区块链技术、车位预约技术、停车匹配引导技术、车辆服务导航技术的基础上设计的。该系统由应用层、区块链技术服务层、网络层和数据层组成,采用基于聚合链架构的共识算法服务、智能合约服务、数字DNA支持的防伪验证等区块链技术,提供车位预约、智能匹配车位、车辆服务导航优化车位匹配、车位搜索、停车路线引导等服务。系统性能测试表明,平均匹配时间、平均泊车搜索时间、平均泊车指标、平均泊车成功率等性能数据均优于同类泊车服务系统。因此,该系统可以为解决城市车位供需不平衡、出行困难等问题提供一定的帮助。
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引用次数: 0
Challenges and Innovations of Colleges Accounting System from the Perspective of Artificial Intelligence 人工智能视角下高校会计制度的挑战与创新
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00051
Rui-ying Zheng
Artificial intelligence is the technology which takes simulating and expanding human intelligence as the core. In 2019, the Government Accounting System was officially implemented, and colleges and other administrative institutions will implement the "Double Accounting System". Artificial intelligence is facing great opportunities and challenges in improving the accounting system of colleges and universities. This paper analyses the above opportunities and challenges, and puts forward the innovation models of college accounting system from the perspective of artificial intelligence, including intelligent parallel accounting model, intelligent sequential accounting model, intelligent automatic accounting model and intelligent separate accounting model to provide references for the adjustment of accounting information system in colleges and universities.
人工智能是以模拟和扩展人类智能为核心的技术。2019年,《政府会计制度》正式实施,高校等行政事业单位将实行“双重会计制度”。人工智能在完善高校会计系统中面临着巨大的机遇和挑战。本文分析了上述机遇与挑战,从人工智能的角度提出了高校会计系统的创新模式,包括智能并行会计模式、智能顺序会计模式、智能自动会计模式和智能分账会计模式,为高校会计信息系统的调整提供参考。
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引用次数: 1
Geographic Information Traffic Detection Model 地理信息流量检测模型
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00054
Liu Chenxi, Yilin Cai, Xinlu Zhang, Jiatong Tan
With the acceleration of the urbanization process and the development of social economy, the motor vehicle ownership rate of urban residents is increasing day by day. Therefore, traffic congestion is becoming a major problem in cities around the world. These phenomena not only waste residents’ time and money, but also cause serious pollution to the environment. Therefore, traffic congestion monitoring is of great significance for analyzing the problem of traffic flow stability. To improve the prediction accuracy of urban road traffic congestion, this paper proposes a conges-tion discrimination model based on Pattern Mining according to relevant res. Then we combine a lot of data for data mining. Given the urban road traffic congestion real-time identification problem, we extract some key factors. Based on the Stata flow prediction model, we used the Beijing traffic data set model to verify the multi-log linear regression. Finally, we obtain the high accuracy traffic congestion regression model.
随着城市化进程的加快和社会经济的发展,城镇居民机动车拥有率日益提高。因此,交通拥堵正在成为世界各地城市的一个主要问题。这些现象不仅浪费了居民的时间和金钱,而且对环境造成了严重的污染。因此,交通拥堵监测对于分析交通流稳定性问题具有重要意义。为了提高城市道路交通拥堵的预测精度,本文根据相关资料提出了一种基于模式挖掘的拥堵判别模型,并结合大量数据进行数据挖掘。针对城市道路交通拥堵实时识别问题,提取关键因素。基于Stata流量预测模型,利用北京市交通数据集模型对多元对数线性回归进行验证。最后,得到了高精度的交通拥堵回归模型。
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引用次数: 0
Research on collaborative construction of emergency logistics support system and blockchain 应急后勤保障体系与b区块链协同建设研究
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00104
Jie Sun
Blockchain was once hailed as an important direction of the fourth industrial revolution with its decentralization concept. The logistics industry is the largest application scenario of blockchain after finance. This paper designed the emergency logistics support system which is based on blockschain collaboration. And this system is constructed from material supply and demand management, material scheduling management, etc. In this system, smart contracts are automatically executed throughout the process and highly reliable, providing a shared but non-tamperable distributed logistics database to ensure the real-time query logistics information. Under the joint maintenance of all parties, every logistics transfer is recorded on the blockchain. This will not only improve the efficiency of emergency logistics management in emergencies, but also help enhance transparency. At the same time, the timeliness and adaptability of material allocation have been fully guaranteed.
区块链以其去中心化的理念,一度被誉为第四次工业革命的重要方向。物流业是继金融之后区块链最大的应用场景。本文设计了基于区块链协同的应急物流保障系统。该系统从物资供需管理、物资调度管理等方面构建。在该系统中,智能合约全程自动执行,可靠性高,提供了一个共享且不可篡改的分布式物流数据库,保证了物流信息的实时查询。在各方共同维护下,每一次物流转移都记录在区块链上。这不仅可以提高突发事件中应急物流管理的效率,还有助于提高透明度。同时,充分保证了物资调配的及时性和适应性。
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引用次数: 0
Analysis and Research on the Stock Volatility Factors of Chinese Listed Companies Based on the FA-ANN-MLP Model 基于FA-ANN-MLP模型的中国上市公司股票波动因素分析与研究
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00015
Jingqi Liu, Xinzhen Pei, Junyan Zou
Accounting information is an essential basis for investors to make decisions, and it is vital to analyze the impact of accounting information on stock prices accurately. Therefore, this article establishes Factor Analysis-Artificial Neural Network-Radial Basis Function (FA-ANN-MLP) model, through empirical analysis of Sinopec Group’s stock prices and accounting information, to explore accounting information indicators that significantly affect stock prices and Predict the trend of stock price rise and fall. The results show that the accuracy of the model’s prediction is 81.7%, and profitability and earnings per share are significant factors that affect stock prices. This model has a high accuracy rate in predicting stock price rise and fall, providing investors with a theoretical basis.
会计信息是投资者进行决策的重要依据,准确分析会计信息对股票价格的影响至关重要。因此,本文建立因子分析-人工神经网络-径向基函数(FA-ANN-MLP)模型,通过对中国石化集团股价与会计信息的实证分析,探索显著影响股价的会计信息指标,预测股价涨跌趋势。结果表明,该模型的预测准确率为81.7%,盈利能力和每股收益是影响股价的显著因素。该模型预测股价涨跌的准确率较高,为投资者提供了理论依据。
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引用次数: 0
Portfolio Construction Based on the ARMA Model and the Mean-Variance Theory 基于ARMA模型和均值方差理论的投资组合构建
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00027
Chaoqi Wu, Jinming Zhang
It is an essential process for investors to construct a portfolio in the equity market. However, the uncertain volatility in the market is a drag to construct a certain portfolio. Based on several blue-chip stocks from S&P, this paper aims at constructing an optimal portfolio with risky assets. The autoregressive moving average (ARMA) model and the Mean-Variance model are selected for investigations. Specifically, the paper builds time series models and forecasts the future returns with a rolling window based on the ARMA model. Then, the predicted weekly returns are used to calculate the Efficient Frontier (EF) of every single period using Monte Carlo simulation. Furthermore, the optimal point with the highest Sharpe Ratio locates the upper-left area of the EF is adopted to set up and adjust the portfolio of each period. The back-test results show that the portfolio performed well compared to the S&P500 index. On top of that, the ARMA model selected performed well in predicting the future return of targeted stocks. Moreover, the Mean-Variance Model, abbreviated as MV model afterward, with maximized Sharpe ratio, also generates agreeable results. Specifically, the weight on new advanced industrial stocks and retail stocks are relatively high in the portfolio. This empirical process further proves two important facts in financial markets. (1) It is feasible to forecast future stock by returns in the past; (2) it is advisable to pay more attention to new advanced industrial stocks and retail stocks. Adding these kinds of stocks into the portfolio is more potential to gain high returns with correspondingly low volatility.
在股票市场中,投资者构建投资组合是一个必不可少的过程。然而,市场的不确定性波动对构建特定的投资组合是一个拖累。本文以标普蓝筹股为样本,构建了一个风险资产最优投资组合。选取自回归移动平均(ARMA)模型和均值-方差模型进行研究。具体而言,本文建立了时间序列模型,并在ARMA模型的基础上利用滚动窗口对未来收益进行预测。然后,利用预测的周收益,利用蒙特卡罗模拟计算出各周期的有效边界(EF)。并在EF的左上角选取夏普比最高的最优点,对各时期的投资组合进行设置和调整。回测结果表明,该投资组合相对于标准普尔500指数表现良好。此外,所选择的ARMA模型在预测目标股票的未来收益方面表现良好。此外,在夏普比率最大化的情况下,均值-方差模型(下文简称为MV模型)也得到了令人满意的结果。具体来说,新兴工业股和零售股在投资组合中的权重相对较高。这一实证过程进一步证明了金融市场中的两个重要事实。(1)用过去收益预测未来股票是可行的;(2)宜多关注新兴工业股和零售个股。将这类股票加入投资组合更有可能获得高回报和相应的低波动性。
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引用次数: 0
Research on the influence mechanism and regional heterogeneity of digital finance on enterprise innovation : —Empirical analysis based on private enterprises on GEM 数字金融对企业创新的影响机制及区域异质性研究——基于创业板民营企业的实证分析
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00109
Yezhou Yang, Songqi Liu, Yuning Li
As a new financial service model, digital finance has an important impact on the development of the real economy. Based on the data of GEM private enterprises from 2013 to 2018 as samples, this paper examines the relationship between digital financial inclusion and private enterprise innovation from the perspective of influence path and regional heterogeneity. The results show that digital finance can promote the innovation of private enterprises, and the conclusion is still valid after controlling endogenous and replacing variable indicators. Further research finds that digital finance can promote the innovative development of private enterprises on the GEM by alleviating the financing constraints. In addition, the influence of digital finance on the innovation of private enterprises has significant regional heterogeneity, and the promoting effect is stronger in the developed eastern regions. This study enriches the relevant research on the impact of digital finance on enterprise innovation, and concludes that the government should increase its support for private enterprises, establish and improve the risk control mechanism of digital finance, and coordinate the regional development of digital finance.
数字金融作为一种新型的金融服务模式,对实体经济的发展有着重要的影响。本文以2013 - 2018年创业板民营企业数据为样本,从影响路径和区域异质性的角度考察数字普惠金融与民营企业创新的关系。研究结果表明,数字金融能够促进民营企业的创新,在控制了内生指标和替换变量指标后,结论仍然有效。进一步研究发现,数字金融可以通过缓解融资约束,促进创业板民营企业的创新发展。此外,数字金融对民营企业创新的影响具有显著的区域异质性,东部发达地区的促进作用更强。本研究丰富了数字金融对企业创新影响的相关研究,得出政府应加大对民营企业的支持力度,建立健全数字金融风险控制机制,协调数字金融区域发展的结论。
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引用次数: 1
Comparative analysis of Asian and European options based on Monte Carlo simulation 基于蒙特卡罗模拟的亚洲和欧洲期权的比较分析
Pub Date : 2021-04-01 DOI: 10.1109/CBFD52659.2021.00079
Zhi Hui, Cheng Kai, Zhou Ziting
Option is one of the most special representative products in the financial market. This paper shows that the basic concept of Asian options and European options. Then we make a summary for Asian and European options about formers' studies, respectively. Further, we present a Monte Carlo simulation to sample asset price paths for both Asian options and European options. Apple Inc. Common Stock (AAPL) is chosen as a market example which we can obtain market prices. This paper introduces the classic's formula for geometric Brownian motion, then simulating financial asset prices. Monte Carlo simulation can solve the pricing problem well because of its obvious advantages such as flexibility, easy realization, and estimation error. This paper focuses on the characteristics of Asian options and European options. Scatterplots obtained from the simulation data are used to compare and analyze the difference between Asian options and European options. It is concluded that the investment risk of Asian options is smaller than European options
期权是金融市场上最具代表性的特殊产品之一。本文介绍了亚洲期权和欧洲期权的基本概念。然后分别对亚洲和欧洲的前辈学习选择进行了总结。此外,我们提出了一个蒙特卡罗模拟样本资产价格路径为亚洲期权和欧洲期权。苹果(aapl . o:行情)。选择普通股(AAPL)作为市场例子,我们可以得到市场价格。本文介绍了几何布朗运动的经典公式,并对金融资产价格进行了模拟。蒙特卡罗仿真具有灵活、易于实现、估计误差小等明显的优点,可以很好地解决定价问题。本文主要分析了亚洲期权和欧洲期权的特点。利用模拟数据得到的散点图,比较分析了亚洲期权和欧洲期权的差异。结果表明,亚洲期权的投资风险小于欧洲期权
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引用次数: 0
期刊
2021 International Conference on Computer, Blockchain and Financial Development (CBFD)
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