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Analysis of New Senior English for China Student’s Book 1
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作者 Xia Qian 《语言与文化研究》 2024年第4期128-132,共5页
This article will firstly discuss the context overview of English teaching and learning in China. Under thiscircumstance, a problematic element will be examined of the New Senior English for China Student’s Book 1 an... This article will firstly discuss the context overview of English teaching and learning in China. Under thiscircumstance, a problematic element will be examined of the New Senior English for China Student’s Book 1 and critical appraisal ofhow this element relates to other elements of curriculum development will be analyzed. The recommended changes and demonstrationmechanisms for evaluating the changes are put forward in the last two parts. 展开更多
关键词 New Senior English for China Student’s Book 1 Assessment Critical appraisal Curriculum development CHANGES
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AWeb Application Fingerprint Recognition Method Based on Machine Learning
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作者 Yanmei Shi Wei Yu +1 位作者 Yanxia Zhao Yungang Jia 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第7期887-906,共20页
Web application fingerprint recognition is an effective security technology designed to identify and classify web applications,thereby enhancing the detection of potential threats and attacks.Traditional fingerprint r... Web application fingerprint recognition is an effective security technology designed to identify and classify web applications,thereby enhancing the detection of potential threats and attacks.Traditional fingerprint recognition methods,which rely on preannotated feature matching,face inherent limitations due to the ever-evolving nature and diverse landscape of web applications.In response to these challenges,this work proposes an innovative web application fingerprint recognition method founded on clustering techniques.The method involves extensive data collection from the Tranco List,employing adjusted feature selection built upon Wappalyzer and noise reduction through truncated SVD dimensionality reduction.The core of the methodology lies in the application of the unsupervised OPTICS clustering algorithm,eliminating the need for preannotated labels.By transforming web applications into feature vectors and leveraging clustering algorithms,our approach accurately categorizes diverse web applications,providing comprehensive and precise fingerprint recognition.The experimental results,which are obtained on a dataset featuring various web application types,affirm the efficacy of the method,demonstrating its ability to achieve high accuracy and broad coverage.This novel approach not only distinguishes between different web application types effectively but also demonstrates superiority in terms of classification accuracy and coverage,offering a robust solution to the challenges of web application fingerprint recognition. 展开更多
关键词 Web application fingerprint recognition unsupervised learning clustering algorithm feature extraction automated testing network security
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Calculation of Expected Shortfall for Measuring Risk and Its Applications 被引量:1
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作者 阎春宁 余鹏 黄养新 《Journal of Shanghai University(English Edition)》 CAS 2005年第1期90-94,共5页
Expected shortfall(ES) is a new method to measure market risk. In this paper, an example was presented to illustrate that the ES is coherent but value-at-risk(VaR) is not coherent. Three formulas for calculating the E... Expected shortfall(ES) is a new method to measure market risk. In this paper, an example was presented to illustrate that the ES is coherent but value-at-risk(VaR) is not coherent. Three formulas for calculating the ES based on historical simulation method, normal method and GARCH method were derived. Further, a numerical experiment on optimizing portfolio using ES was provided. 展开更多
关键词 COHERENT expected shortfall(ES) value-at-risk(VaR).
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Study on the Emission Reduction Effect of Environmental Protection Tax—An Empirical Study Based on the Change of Pollution Charge Standard in China? 被引量:1
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作者 Lixin Du Qian Zhou 《Journal of Geoscience and Environment Protection》 2022年第1期207-217,共11页
This paper reflects the actual effect of China’s environmental protection tax by empirically analyzing the environmental effect of the emission fee, in order to provide reference for China’s environmental tax reform... This paper reflects the actual effect of China’s environmental protection tax by empirically analyzing the environmental effect of the emission fee, in order to provide reference for China’s environmental tax reform. Based on the traditional environmental “Kuznets” model, the factor of environmental tax is added to verify the effect of environmental governance of environmental tax. The results show that: 1) the improvement of sulfur dioxide emission charge standard can effectively inhibit industrial sulfur dioxide emission, which verifies the existence of environmental effect of pollution levy policies</span><span style="font-family:"">.</span><span style="font-family:""> 2) The improvement of sewage charge standard has better inhibitory effect on sulfur dioxide emission per unit GDP than on sulfur dioxide emission</span><span style="font-family:"">.</span><span style="font-family:""> 3) There is regional heterogeneity in the “emission reduction” effect of sulfur dioxide emission charges in the eastern, central and western regions of China. Pollutants should be taxed differently according to regional differences</span><span style="font-family:"">.</span><span style="font-family:""> 4) Economic growth and sulfur dioxide emission show an inverted “U” shape, China is still in the stage before the inflection point of EKC. Economic growth still takes environmental damage as the cost, and the “emission reduction” effect of technological progress is not ideal, which reveals the urgency of increasing technological development in the field of green environmental protection under the current situation. 展开更多
关键词 Environmental Tax Environmental Kuznets Model Emissions Reduction Pollution Levy Policies
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An Analysis of Competition over Interest Rate among Banks in China
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作者 顾翌乐 陈湛匀 《Journal of Shanghai University(English Edition)》 CAS 2003年第4期418-424,共7页
In 2000, the central bank of China adopted a policy to gradually liberalize its interest rate, and thus raised the curtain of competition over interest rate among the banks in China. The objective of this study is to ... In 2000, the central bank of China adopted a policy to gradually liberalize its interest rate, and thus raised the curtain of competition over interest rate among the banks in China. The objective of this study is to put a focus on the existing banking market environment and thereafter the gaming behaviors of the banks on different stages given the interest rate is loosened gradually as scheduled. 展开更多
关键词 interest rate LIBERALIZATION bank.
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A Support Vector Machine-based Evaluation Model of Customer Satisfaction Degree in Logistics
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作者 孙华丽 谢剑英 《Journal of Donghua University(English Edition)》 EI CAS 2007年第4期519-522,528,共5页
This paper presents a novel evaluation model of the customer satisfaction degree (CSD) in logistics based on support vector machine (SVM). Firstly, the relation between the suppliers and the customers is analyzed. Sec... This paper presents a novel evaluation model of the customer satisfaction degree (CSD) in logistics based on support vector machine (SVM). Firstly, the relation between the suppliers and the customers is analyzed. Secondly, the evaluation index system and fuzzy quantitative methods are provided. Thirdly, the CSD evaluation system including eight indexes and three ranks based on one-against-one mode of SVM is built. Last simulation experiment is presented to illustrate the theoretical results. 展开更多
关键词 后勤学 评价模型 支持向量机 消费者满意度
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The diffi culties of "polluter pays" policy in agricultural pollution in UK and methods to improve it
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作者 Li Zhengfeng 《Ecological Economy》 2008年第2期243-250,共8页
Agricultural wastes pollution became serious after great improvement in technology and the encourage-ment of production for the government since the end of the World War II. Economists and environmental scholars sugge... Agricultural wastes pollution became serious after great improvement in technology and the encourage-ment of production for the government since the end of the World War II. Economists and environmental scholars suggested that "polluter pays" policy be employed in agricultural pollution control. However, it was hard to imple-ment "polluter pays" policy alone in agricultural wastes pollution. In practice, there were two social factors which contributed to the improvement of water quality in the southwest of United Kingdom. One method is to communicate with farmers and then give farmers some advice or exhortation on facilities and management. The other method is to set up a telephone hotline for public to report water quality and probable pollution. Therefore, the consideration and combination of social factors in the control of agricultural wastes pollution are necessary and important. Education of basic natural sciences relevant to agricultural pollution, system management of agricultural pollutants and laws relevant to agricultural pollution is suggested to be the third social factor that British government can consider. 展开更多
关键词 农业污染 污染赔偿政策 英国 环保政策
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A method for improving the accuracy of automatic indexing of Chinese-English mixed documents
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作者 Yan ZHAO Hui SHI 《Chinese Journal of Library and Information Science》 2012年第4期77-92,共16页
Purpose: The thrust of this paper is to present a method for improving the accuracy of automatic indexing of Chinese-English mixed documents.Design/methodology/approach: Based on the inherent characteristics of Chines... Purpose: The thrust of this paper is to present a method for improving the accuracy of automatic indexing of Chinese-English mixed documents.Design/methodology/approach: Based on the inherent characteristics of Chinese-English mixed texts and the cybernetics theory,we proposed an integrated control method for indexing documents. It consists of 'feed-forward control','in-progress control' and 'feed-back control',aiming at improving the accuracy of automatic indexing of Chinese-English mixed documents. An experiment was conducted to investigate the effect of our proposed method.Findings: This method distinguishes Chinese and English documents in grammatical structures and word formation rules. Through the implementation of this method in the three phases of automatic indexing for the Chinese-English mixed documents,the results were encouraging. The precision increased from 88.54% to 97.10% and recall improved from97.37% to 99.47%.Research limitations: The indexing method is relatively complicated and the whole indexing process requires substantial human intervention. Due to pattern matching based on a bruteforce(BF) approach,the indexing efficiency has been reduced to some extent.Practical implications: The research is of both theoretical significance and practical value in improving the accuracy of automatic indexing of multilingual documents(not confined to Chinese-English mixed documents). The proposed method will benefit not only the indexing of life science documents but also the indexing of documents in other subject areas.Originality/value: So far,few studies have been published about the method for increasing the accuracy of multilingual automatic indexing. This study will provide insights into the automatic indexing of multilingual documents,especially Chinese-English mixed documents. 展开更多
关键词 Chinese-English mixed documents String matching Accuracy of automatic indexing CYBERNETICS Dedicated hepatitis B virus(HBV) database
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A Proposal for an English Teacher Education Program for Chinese Secondary English Teachers
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作者 夏倩 《语言与文化研究》 2023年第6期193-197,共5页
This article centers around a proposal for an English teacher education program for Chinese secondary English teachers.For comprehending the proposal,three main elements have been covered.The first section focuses on ... This article centers around a proposal for an English teacher education program for Chinese secondary English teachers.For comprehending the proposal,three main elements have been covered.The first section focuses on the teaching context and teaching content along with the underpinning reasons.In the second part,methodology of the program as well as its rationale has been examined.The last section,the strengths and weaknesses of the program are evaluated based on the synthesis of Wallace’s(1991)framework and Peacock’s(2009)model of evaluation. 展开更多
关键词 TEACHING WALLACE RATIONAL
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Ecological economic benefit in sustainable development 被引量:2
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作者 Jiang Xuemin Ren Long 《Ecological Economy》 2006年第1期3-10,共8页
From the concept of ecological economic benefit, I put forward the general formula for the benefit of ecologicaleconomy and the appraisal methods of the ecological economy. Theory on ecological benefit and economic be... From the concept of ecological economic benefit, I put forward the general formula for the benefit of ecologicaleconomy and the appraisal methods of the ecological economy. Theory on ecological benefit and economic benefit is thebase of the benefits of ecological economy. To some extent, the development of ecological economy, theory and practice oneco-agriculture are both the production made from opposition and unify of ecological benefit and economic benefit. Thispaper discusses the “T” type structure, which will give the theoretical bases for enhancing the ecological and economicalbenefits. 展开更多
关键词 生态经济 生态利益 经济利益 生态系统 生态农业
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Rule Generation Based on Dominance Matrices and Functions
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作者 安利平 陈增强 +1 位作者 袁著祉 仝凌云 《Transactions of Tianjin University》 EI CAS 2004年第1期54-58,共5页
Rough set theory has proved to be a useful tool for rule induction. But, the theory based on indiscernibility relation or similarity relation cannot induce rules from decision tables with criteria. Greco et al have pr... Rough set theory has proved to be a useful tool for rule induction. But, the theory based on indiscernibility relation or similarity relation cannot induce rules from decision tables with criteria. Greco et al have proposed a new rough set approach based on dominance relation to handle the problems. In this paper, the concept of dominance matrix is put forward and the dominance function is constructed to compute the minimal decision rules that are more general and applicable than the ones induced by the classical rough set theory. In addition, the methodology of simplification is presented to eliminate the redundancy in the rule set. 展开更多
关键词 优先矩阵 强函数 粗糙集 规则归纳
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Technological Research about “IPO” Suited for Market Environment in China
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作者 张梅琳 《Journal of Shanghai University(English Edition)》 CAS 2004年第2期235-240,共6页
Recently, IPO (Initial Public Offering)has seen great change in China. This shift resulted in significant reformation in the way of operation for domestic investment bank. In the future competition for IPO market amon... Recently, IPO (Initial Public Offering)has seen great change in China. This shift resulted in significant reformation in the way of operation for domestic investment bank. In the future competition for IPO market among investment banks, the refined pricing ability will stand for the winner as prerequisite. As a kind of discussion on IPO pricing, this paper begins with how the reasonable IPO price is being worked out from three layers: the evaluation of stocks, the equilibrium of price and the formation of the final price. On this basis, we summarize and analyze the process of the reform of domestic IPO. Finally, we give some suggestions on this problem for further reform. Key words IPO pricing - reform - market environment 展开更多
关键词 IPO pricing REFORM market environment
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A Service Ratio-Based Dynamic Fair Queueing Algorithm for Packet-Switching Networks
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作者 尹德斌 谢剑英 +2 位作者 张燕 吴健珍 孙华丽 《Journal of Donghua University(English Edition)》 EI CAS 2008年第2期187-194,共8页
A new weighted fair queueing algorithm is proposed, which uses the novel flow-based service ratio parameters to schedule flows. This solves the main drawback of traditional weighted fair queueing algorithms-the packet... A new weighted fair queueing algorithm is proposed, which uses the novel flow-based service ratio parameters to schedule flows. This solves the main drawback of traditional weighted fair queueing algorithms-the packet-based calculation of the weight parameters. In addition, this paper proposes a novel service ratio calculation method and a queue management technology. The former adjusts the service ratio parameters adaptively based on the dynamics of the packet lengths and then solves the unfairness problem induced by the variable packet length. The latter improves the utilization of the server’s queue buffer and reduces the delay jitter through restricting the buffer length for each flow. 展开更多
关键词 报文分组交换网络 队列规划 服务率 加权定期队列算法
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The Agricultural Export Competitiveness and Independent Innovation in Liaoning Province
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作者 Guimin WANG Haixian XIA 《Asian Agricultural Research》 2013年第7期27-30,共4页
Through the vertical and horizontal analysis of agricultural export data in Liaoning Province during the period 2006-2010,we can find that Liaoning Province has already a major exporter of agricultural products,but th... Through the vertical and horizontal analysis of agricultural export data in Liaoning Province during the period 2006-2010,we can find that Liaoning Province has already a major exporter of agricultural products,but there is no significant increase in many indicators with great fluctuation or declining trend. Meanwhile,compared with other provinces,the competitive advantages of agricultural export in Liaoning Province are not obvious,lacking competitive potential. Analysis shows that it is a strenuous task for Liaoning Province to transform from a major exporter of agricultural products to strong export province; during the course,relying on independent innovation is the fundamental guarantee. Liaoning Province should rely on independent innovation,to create new agricultural varieties,lead the international standards of agricultural products,form the brand agriculture,and improve the agricultural industry chain. 展开更多
关键词 EXPORT COMPETITIVENESS COMPARATIVE ANALYSIS Indepe
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English Text Sentiment Analysis Based on Convolutional Neural Network and U-network
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作者 Shu Ma 《IJLAI Transactions on Science and Engineering》 2024年第2期81-90,共10页
English text sentiment orientation analysis is a fundamental problem in the field of natural language processing.The traditional word segmentation method can produce ambiguity when dealing with English text.Therefore,... English text sentiment orientation analysis is a fundamental problem in the field of natural language processing.The traditional word segmentation method can produce ambiguity when dealing with English text.Therefore,this paper proposes a novel English text sentiment analysis based on convolutional neural network and U-network.The proposed method uses a parallel convolution layer to learn the associations and combinations between word vectors.The results are then input into the hierarchical attention network whose basic unit is U-network to determine the affective tendency.The experimental results show that the accuracy of bias classification on the English review dataset reaches 93.45%.Compared with many existing sentiment analysis models,it has more accuracy. 展开更多
关键词 English text sentiment Convolutional neural network U-network
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A MATHEMATICAL PROGRAMMING MODEL FOR THE COEXISTENCE OF COMPETITIONS AND COOPERATIONS PROBLEMS 被引量:5
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作者 MENG Zhiqing HU Qiying DANG Changyan 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2005年第4期556-563,共8页
我们为比赛和合作问题的共存在这篇论文学习一个数学编程模型。我们介绍一个新答案概念,这个问题的 s 最佳的答案,它总是在紧缩、连续的条件下面存在。一最佳的答案能被解决一个非线性的编程问题获得,这被显示出。一些例子被给解释... 我们为比赛和合作问题的共存在这篇论文学习一个数学编程模型。我们介绍一个新答案概念,这个问题的 s 最佳的答案,它总是在紧缩、连续的条件下面存在。一最佳的答案能被解决一个非线性的编程问题获得,这被显示出。一些例子被给解释怎么计算一个 s 最佳的答案。 展开更多
关键词 协作问题 共存系统 竞争系统 最优解 数学规划
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Evolutionary Algorithms for Solving Unconstrained Multilevel Lot-Sizing Problem with Series Structure
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作者 韩毅 蔡建湖 +3 位作者 IKOU Kaku 李延来 陈以增 唐加福 《Journal of Shanghai Jiaotong university(Science)》 EI 2012年第1期39-44,共6页
This paper presents a comparative study of evolutionary algorithms which are considered to be effective in solving the multilevel lot-sizing problem in material requirement planning(MRP)systems.Three evolutionary algo... This paper presents a comparative study of evolutionary algorithms which are considered to be effective in solving the multilevel lot-sizing problem in material requirement planning(MRP)systems.Three evolutionary algorithms(simulated annealing(SA),particle swarm optimization(PSO)and genetic algorithm(GA))are provided.For evaluating the performances of algorithms,the distribution of total cost(objective function)and the average computational time are compared.As a result,both GA and PSO have better cost performances with lower average total costs and smaller standard deviations.When the scale of the multilevel lot-sizing problem becomes larger,PSO is of a shorter computational time. 展开更多
关键词 simulated annealing(SA) genetic algorithm(GA) particle SWARM optimization(PSO) MULTILEVEL LOT-SIZING PROBLEM
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试论无国界管理人才的培养构架及其评价体系(英文)
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作者 范徵 徐永 +2 位作者 潘聪 杜娟 刘颖 《跨文化管理》 2013年第1期8-28,共21页
本文在综述已有研究的基础上,构筑了'基于冰河知识体系的无国界管理人才素质结构'和'基于大学核心职能的无国界管理人才培养创新平台'构架,并给出了二者具体的评价指标体系。最后还剖析了上海外国语大学MBA无国界管理... 本文在综述已有研究的基础上,构筑了'基于冰河知识体系的无国界管理人才素质结构'和'基于大学核心职能的无国界管理人才培养创新平台'构架,并给出了二者具体的评价指标体系。最后还剖析了上海外国语大学MBA无国界管理人才的培养模式。 展开更多
关键词 无国界管理人才 国际型 培养构架 评价体系
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跨国企业之负责性组织精简策略的比较研究:组织精简体制化理论观点(英文)
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作者 蔡正飞 《跨文化管理》 2013年第1期90-116,共27页
组织精简是企业常用的策略之一,但其绩效却备受争议,且会伤害到数以千计的员工及他们的家庭,甚至形成社会课题。有些美国学者研究主张,'负责性的组织精简策略'既能提升企业绩效同时也能减少对员工的伤害。根据McKinley,Zhao和Ru... 组织精简是企业常用的策略之一,但其绩效却备受争议,且会伤害到数以千计的员工及他们的家庭,甚至形成社会课题。有些美国学者研究主张,'负责性的组织精简策略'既能提升企业绩效同时也能减少对员工的伤害。根据McKinley,Zhao和Rust(2000)所提出的组织精简体制化理论,主张企业应基于遵循社会体制的内在动机而实行精简。Tsai,Wu,Wang,Huang(2006)进一步主张它甚至会引导企业实行同质化的精简外在作为。那么'负责性的组织精简策略'是否也会因体制化因素而普遍性地被不同国家文化背景的企业所采用?这是个值得探索的议题。本研究以我国台湾地区224家实际执行过精简的本地公司与不同文化背景的跨国企业为样本来实证之,并以三个焦点团体访谈的结论来解释量化结果。结果发现,不同文化背景的跨国企业在组织精简时的做法确实有高度的同质化;同时,'普世价值'也是一种文献中尚未讨论到的重要体制化力量。这不只对组织精简体制化理论的发展有所帮助,同时也可作为跨国企业在组织精简与人力资源管理措施上的重要参考。 展开更多
关键词 组织精简 体制化 跨国企业
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