数字电视系统中股票金融信息播出的解决方案

数字电视技术的到来，为数据广播的推广带来了发展机遇，传统的数据广播方式正经历着一场技术革命，文章阐述了数字电视技术中的数据广播系统及其股票金属信息的传输方法和传输内容。     

Stock Market Response to Acquisitions and Alliances in the European Telecom Industry: An Information Asymmetry Perspective

This paper investigates two kinds of strategic combinations carried out by the European telecom operators between 1986 and 2001: acquisitions, on the one hand, and strategic alliances, on the other. The aim of the paper is twofold. First, it analyzes the behavior adopted by these companies to adapt to an environment that, after the processes of globalization and privatization presents a clearly different structure. Second, it focuses on the effect that internationalization and diversification could exert over the returns obtained by the European telecom firms involved in acquisitions and alliances, differentiating when such strategic combinations are more profitable for the shareholders of the firms that carry them out.     

人工神经网络在股市预测模型中的应用

介绍了人工神经网络的基本原理和传统股市预测方法的缺点,建立BP神经网络模型,以某个股实际收盘价为原始数据样本,对网络进行训练后,对股票价格进行了短期预测,并计算出预测值和实际值的误差。通过实验发现该模型收敛速度快,预测精度高。     

国内外电子级玻璃纤维生产现状及市场发展趋势

简述了国内外电子纱与电子布的生产现状,并扼要介绍了我国覆铜板工业近几年的发展概况与电子玻纤市场的广阔前景。     

知识经济时代财务管理的变革与创新

知识经济时代，无形资产对企业财富的贡献占有主要地位，由此衍生出无形资产对税后利润的分配权。笔者从传统财务管理面临的挑战。探讨了财务管理需要变革和创新的观念和内客。     

信息时代财务工作创新初探

随着经济的发展,在国内很多公司注重自身发展,很多集团对于自身都展开了财务集约化治理。这种方式让财务部门自身发生了巨大的转变。这种方式的应用使得财务发展进入了一个新的历史进程,从而让财务相关的内容和管理方式以及思想需要快速的改革来适应现实的实际要求。     

The Appearance of Accountability: Communication Technologies and Power Asymmetries in Humanitarian Aid and Disaster Recovery

New communication technologies are celebrated for their potential to improve the accountability of humanitarian agencies. The response to Typhoon Haiyan in 2013 represents the most systematic implementation of “accountability to affected people” initiatives. Drawing on a year‐long ethnography of the Haiyan recovery and 139 interviews with humanitarian workers and affected people, the article reveals a narrow interpretation of accountability as feedback that is increasingly captured through mobile phones. We observe that the digitized collection of feedback is not fed back to disaster‐affected communities, but is directed to donors as evidence of “impact.” Rather than improving accountability to affected people, digitized feedback mechanisms sustained humanitarianism's power asymmetries.     

The Impacts of Time Performance and Market Knowledge Competence on New Product Success: An International Study

Speed of development, speed to market, and meeting market needs are often recommended in the new product development (NPD) literature as keys to successful product launches, but it is not clear how market knowledge competence and time performance are related in driving successful NPD. To find out, we analyzed 250 firms from four countries (Germany, Italy, Japan, and USA). We found the two factors to be complementary, i.e., both direct and interaction effects of speed and market knowledge on product success were found. In particular, the strong effect of market knowledge competence on product success is noteworthy because building market knowledge competence is a strategy that management can proactively utilize to cope with market uncertainty, which has been argued to moderate the time performance relationship in NPD. The implication is that both measures of effectiveness (matching needs) and efficiency (speed) need to be considered complementarily when managing for successful NPD.     

Apriori算法在金融信息系统中的应用研究

为了进一步发掘金融信息系统中的信息的潜在价值,为金融决策者提供可靠的金融决策分析,文章通过研究和分析Apriori算法,结合金融信息系统的数据信息处理特点,对传统的Apriori算法进行了改进设计,并且基于Apriori数据挖掘算法实现了对金融管理系统的数据分析,对发掘金融信息系统中的信息之间的关联性,挖掘其潜在价值具有非常重要的意义。     

不惧金融危机,中国网银用户量逆市向上——CFCA发布2009中国网上银行调查报告

2009年12月3日,备受各界关注的《2009中国网上银行调查报告》正式亮相。报告从客观公正的角度对金融危机下,2009年中国网银发展总体态势以及网银安全形势进行了深度解读,并给出了一系列的指导性建议。     

信息产业技术标准之战中的市场策略

在技术标准的竞争中，市场策略问题成为每个企业不得不认真对待的问题。企业在考虑市场策略问题时。必须处理好两种关系：企业技术与市场上现有技术的兼容问题；是否对其他厂商开放企业自身的技术。在此基础上，企业需要根据实际市场情况。尤其是竞争对手采取的竞争策略。选择正确的市场策略。标准战争是企业之间竞争实力的较量。企业参与标准竞争通常采用的手段是：先发制人和建立预期。建立战略联盟有助于企业在标准战争中取胜。     

对蜂窝手机市场和生产的若干看法及建议

本文根据全球及我国近年手机市场的发展概况和预测,对我国手机市场作了具体的分析,对我国新兴的手机产业及其发展提出了若干看法和建议,供业内人士参考、讨论。     

配网生产指挥系统及其信息交互方式研究

配网生产指挥系统（Distribution Network Production Command Systemfor Urban Power Grid Company）是在配电自动化的基础上,通过配电信息交互总线集成包括生产管理系统（PMS）等系统的信息和应用,面向配电调度人员和生产运行人员,为配电生产运行提供综合管理...     

The Impact of Political Advertising on Knowledge, Internet Information Seeking, and Candidate Preference

Previous research has suggested that exposure to political advertising is generally informative and may even reduce information gaps between the most and least aware in society, but does not produce large shifts in candidate preference. Drawing on extant models of opinion change, we predicted that the informational benefits of political ads would vary by level of awareness, such that the most aware would experience the largest gains, especially when they are asked to make inferences about issues not explicitly discussed in the ad. Further, we predicted that the most aware would use information in advertisements as a substitute for other kinds of information seeking, while the least aware would be relatively unmotivated to seek out new information, regardless of exposure. Finally, the least aware would be more susceptible to persuasion via ads than the most aware would be. Experimental evidence confirmed these predictions.     

Sponsorship Disclosure: Effects of Duration on Persuasion Knowledge and Brand Responses

This study examined how sponsorship disclosure on television influences persuasion knowledge and brand responses (i.e., brand memory and brand attitude). Moreover, we tested whether extending disclosure duration increases its effect. By conducting an experiment (N = 116) we compared the effects of no disclosure to a 3‐second and a 6‐second disclosure. Results showed that especially a 6‐second disclosure activates conceptual and consequently attitudinal persuasion knowledge. Regarding brand responses, we found that disclosure directly increased brand memory, regardless of duration. In addition, a 6‐second disclosure indirectly resulted in less favorable brand attitudes through higher rates of attitudinal persuasion knowledge. Theoretically, this study provides insights into how sponsorship disclosure influences the persuasion process and the role of persuasion knowledge within this process.     

冶金矿料自动取样装置的研究与应用

本文介绍了通过采用图像识别以及PLC控制等技术来实现冶金行业矿料的自动取样,从而大大缓解了因矿料吞吐量剧增、人工因素导致的违规舞弊事件不断上升等原因造成的生产管理脱节现象,降低了工人劳动强度,提高了冶金矿料检化验的质量和工作效率.     

Forecasting Method of Stock Market Volatility in Time Series Data Based on Mixed Model of ARIMA and XGBoost

Stock price forecasting is an important issue and interesting topic in financial markets.Because reasonable and accurate forecasts have the potential to generate high economic benefits,many researchers have been involved in the study of stock price forecasts.In this paper,the DWT-ARIMAGSXGB hybrid model is proposed.Firstly,the discrete wavelet transform is used to split the data set into approximation and error parts.Then the ARIMA(0,1,1),ARIMA(1,1,0),ARIMA(2,1,1)and ARIMA(3,1,0)models respectively process approximate partial data and the improved xgboost model(GSXGB)handles error partial data.Finally,the prediction results are combined using wavelet reconstruction.According to the experimental comparison of 10 stock data sets,it is found that the errors of DWT-ARIMA-GSXGB model are less than the four prediction models of ARIMA,XGBoost,GSXGB and DWT-ARIMA-XGBoost.The simulation results show that the DWT-ARIMA-GSXGB stock price prediction model has good approximation ability and generalization ability,and can fit the stock index opening price well.And the proposed model is considered to greatly improve the predictive performance of a single ARIMA model or a single XGBoost model in predicting stock prices.     

科普需要知识的力量和美的体验

科普要能唤醒大众参与的热情,不仅要有知识的力量,还要有美的体验。去年,我在白俄罗斯国家自然保护区——勃拉斯拉夫灯塔山下看到一块环保标语牌,其标语保护大自然的感言,唤起人们美的体验,有特色。一同游览的使馆朋友,边翻译边品味。现介绍给国内同行。标语牌上写：“我采下一朵小花——它凋谢了。我捉住一只甲虫——它在我的手中死去。这时,我明白了,对美的触模只能用心灵。”