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Finding the Right Model
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《ChinAfrica》 2013年第10期11-11,共1页
Through infrastructure-for-re- sources loans, China has enabled its national enterprises to operate across Africa and in the process it has also made a substantial con- tribution toward the provision of roads, railway... Through infrastructure-for-re- sources loans, China has enabled its national enterprises to operate across Africa and in the process it has also made a substantial con- tribution toward the provision of roads, railways, ports and other infrastructure needed across the continent. These infrastructure programs have improved the 展开更多
关键词 Finding the right model
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Nonparametric Inference for the Stress-Strength Model under Right Censoring 被引量:3
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作者 QI Hui QI Fei YU Jichang 《Wuhan University Journal of Natural Sciences》 CAS CSCD 2015年第3期202-206,共5页
The stress-strength model is widely applied in reliability. Observations are often subject to right censoring due to some practical limitations. In such circumstances, the statistical inference for the stress-strength... The stress-strength model is widely applied in reliability. Observations are often subject to right censoring due to some practical limitations. In such circumstances, the statistical inference for the stress-strength model is demanding, although lacking. We propose a nonparametric method for the inference of the stress-strength model when the observations are subject to right censoring. The asymptotic properties are also established. The practical utility of the proposed method is assessed through both simulated and real data sets. 展开更多
关键词 reliability right censoring Kapla-Meier estimator stress-strength model
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Interpretation of the Marrakesh Treaty Based on the Human Rights Model of Disability
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作者 李琛 CHANG Guohua(译) 《The Journal of Human Rights》 2022年第4期645-658,共14页
The Marrakesh Treaty is,in essence,a human rights treaty.The interpretation and implementation of the treaty cannot be separate from the view on the persons with disabilities from the perspective of human rights.Based... The Marrakesh Treaty is,in essence,a human rights treaty.The interpretation and implementation of the treaty cannot be separate from the view on the persons with disabilities from the perspective of human rights.Based on this view,the interpretation of the treaty should reflect its value of promoting equality,instead of granting privileges to the persons with disabilities.During its implementation,it should be forbidden to aggravate the social alienation of the persons with disabilities by making excessive stipulations.Taking the implementation of the treaty as an opportunity,promoting the transformation of the view on the persons with disabilities from the individual model to the human rights model and facilitating the concept of“building the intangible accessible environment”can maximize the significance of the treaty. 展开更多
关键词 Marrakesh Treaty human rights model the person with disabilities COPYright fair use
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Higgs and Single Top Associated Production at the LHC in the Left-Right Twin Higgs Model
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作者 蒋兴雨 韩金钟 +1 位作者 杨光 喻纯旭 《Communications in Theoretical Physics》 SCIE CAS CSCD 2017年第4期415-420,共6页
In the framework of the left-right twin Higgs(LRTH) model, we study the Higgs boson and single top quark associated production at the LHC. We investigate the processes pp → thj, pp → thˉb and pp → th W at the 8(14... In the framework of the left-right twin Higgs(LRTH) model, we study the Higgs boson and single top quark associated production at the LHC. We investigate the processes pp → thj, pp → thˉb and pp → th W at the 8(14) Te V LHC and find that the production cross sections of the three processes can be enhanced at different levels. Among them,the production cross section of the process pp → thˉb is enhanced significantly due to the contribution of the new particles predicted by the LRTH model. 展开更多
关键词 Higgs boson top quark left-right twin Higgs model
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Modelling the Violation of Restrictions Pertaining to Deforestation in a Given Land Right
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作者 Anthony G. Tumba Shahidah Bte Mohd Ariff 《Journal of Environmental Protection》 2015年第11期1219-1235,共17页
This paper develops a model that could be used to visualize and predict the violation of restrictions in a given forest. The violation of restriction in this case is assumed to be the difference in areal extent betwee... This paper develops a model that could be used to visualize and predict the violation of restrictions in a given forest. The violation of restriction in this case is assumed to be the difference in areal extent between two forest cover scenes with time;termed “deforestation”. It analyses the relationship in forest cover changes overtime in Ganye Forest Reserve and Glide Cross Country Farm in Adamawa state, Nigeria. Cadastral maps of the forest reserve and farmland were used as the base maps, while the satellite images served as the spatio-temporal data. Landsat ETM+ images of 2003, 2008 and 2013 were used to identify, determine and estimate the violation of restrictions. The result shows that the violation of restrictions could be reliably determined for both the forest reserve and farmland and forecast made in order to predict future occurrence. It also revealed a continuous deforestation in the forest reserve, while in the farmland regeneration of forest stock was noticed. This information is very vital for forest management, planning and decision making in a viable land administration domain. 展开更多
关键词 VIOLATION of Restrictions DEFORESTATION model LAND right
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Equivalence between the Dependent Right Censorship Model and the Independent Right Censorship Model
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作者 Qiqing Yu Kai Yu 《Open Journal of Statistics》 2016年第2期209-219,共11页
Yu et al. (2012) considered a certain dependent right censorship model. We show that this model is equivalent to the independent right censorship model, extending a result with continuity restriction in Williams and L... Yu et al. (2012) considered a certain dependent right censorship model. We show that this model is equivalent to the independent right censorship model, extending a result with continuity restriction in Williams and Lagakos (1977). Then the asymptotic normality of the product limit estimator under the dependent right censorship model follows from the existing results in the literature under the independent right censorship model, and thus partially solves an open problem in the literature. 展开更多
关键词 Constant-Sum models right-Censoring Dependent Censoring Necessary and Sufficient Condition
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On the China Model for Ensuring Human Rights
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作者 XIONG WANPENG 《The Journal of Human Rights》 2013年第1期22-26,共5页
Since the beginning of reform and opening up and particu- larly since the beginning of the 21st century, Chinese peoplehave had a deeper understanding of the importance of human rights, better recognition of progress ... Since the beginning of reform and opening up and particu- larly since the beginning of the 21st century, Chinese peoplehave had a deeper understanding of the importance of human rights, better recognition of progress made in the field of human rights, and more urgent aspirations for further development of human rights in China. At the same time, there are problems and confu- sion that need to be addressed. For example, what is the China model for ensuring human rights? How should a a theoretical system of human rights with Chinese characteristics be con- structed? How can self-awareness and self-confidence in the area of human rights be formed? How can the healthy development of the human rights cause in China be pushed forward? 展开更多
关键词 On the China model for Ensuring Human rights
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Principal-subordinate hierarchical multi-objective programming model of initial water rights allocation 被引量:5
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作者 Dan WU Feng-ping WU Yan-ping CHEN 《Water Science and Engineering》 EI CAS 2009年第2期105-116,共12页
The principal-subordinate hierarchical multi-objective programming model of initial water rights allocation was developed based on the principle of coordinated and sustainable development of different regions and wate... The principal-subordinate hierarchical multi-objective programming model of initial water rights allocation was developed based on the principle of coordinated and sustainable development of different regions and water sectors within a basin. With the precondition of strictly controlling maximum emissions rights, initial water rights were allocated between the first and the second levels of the hierarchy in order to promote fair and coordinated development across different regions of the basin and coordinated and efficient water use across different water sectors, realize the maximum comprehensive benefits to the basin, promote the unity of quantity and quality of initial water rights allocation, and eliminate water conflict across different regions and water sectors. According to interactive decision-making theory, a principal-subordinate hierarchical interactive iterative algorithm based on the satisfaction degree was developed and used to solve the initial water rights allocation model. A case study verified the validity of the model. 展开更多
关键词 initial water rights allocation principal-subordinate hierarchy multi-objective programming model satisfaction degree
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Study on Dynamic Model of Initial Emission Rights for Medical Sewage System
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作者 Lina Wang Yongqiang Pan +5 位作者 Linjiao Yang Yitong Wang Fulin Li Jiaqi Wang Shanwei Wang Na Zuo 《Modeling and Numerical Simulation of Material Science》 2019年第2期29-40,共12页
The chemical oxygen demand (COD) is selected as the index in this paper. The system dynamics method is used to analyze the emission right price of medical sewage, the boundary of the emission right price system is det... The chemical oxygen demand (COD) is selected as the index in this paper. The system dynamics method is used to analyze the emission right price of medical sewage, the boundary of the emission right price system is determined, and the system dynamics model of the initial emission right of medical sewage is constructed, in which the system is divided into water resources subsystem, population subsystem, economic subsystem and social subsystem. It is expected to expand the theory of the system modeling of the initial discharge right of medical sewage, and to provide the basis for the relevant decision of the environmental management authorities. 展开更多
关键词 System DYNAMICS modeling MEDICAL SEWAGE INITIAL EMISSION rightS
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A Reanalysis of the Two Swimmers Problem, as Frequent Model of Michelson’s Interferometric Experiment Demonstrating that Transversal Path Is Not an Isosceles but a Right Triangle and the Race Will End in a Tie
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作者 Ioan Has Simona Miclaus Aurelian Has 《Journal of Applied Mathematics and Physics》 2018年第7期1507-1521,共15页
The article initially reviews various works describing the physical model (PM) of Michelson’s interferometric experiment (ME), represented by the race between two swimmers Sw1, Sw2 (or boats, or planes, or sound sign... The article initially reviews various works describing the physical model (PM) of Michelson’s interferometric experiment (ME), represented by the race between two swimmers Sw1, Sw2 (or boats, or planes, or sound signals, etc.). The two swimmers must each swim the same distance, but Sw1 will swim along the river flow, and Sw2 will swim perpendicularly to this direction. In all such works, it is considered that Sw2’s path will require less time and that it will reach the start point first. However, in this work, it has been determined that in order to make this possible, Sw2 must not observe the orthogonality rule of his start direction. This action would be deceitful to the arbiters and thus considered as non-fair-play towards Sw1. The article proves by swimming times calculus, that if the fair-play rules are observed, then the correct crosswise path (in water reference frame) is a right triangle instead of the isosceles triangle considered by Michelson. Consequently, the two times shall be perfectly equal and the race ends in a tie, and the myth of Sw2 as the race winner shall be debunked. Note that the same result shall also be applicable to Michelson’s interferometric experiment (ME) as well as to any similar experiment. Therefore, utilising the isosceles triangle as the transversal path in PM and also in ME is an erroneous act. 展开更多
关键词 Michelson EXPERIMENT TWO SWIMMERS model Swimming Times Calculation right TRIANGLE Correct TRANSVERSAL PATH Error of Isosceles TRIANGLE for TRANSVERSAL PATH
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海珠模式:中国特色数据经纪人的实践探索
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作者 奉国和 彭凯林 邓伟伟 《深圳社会科学》 2026年第1期28-37,共10页
数据经纪人在数据共享、流通、交易及应用等关键环节中扮演着重要角色。深入剖析了数据经纪人的内涵、特征、分类、理论与实践认识,并以广州市海珠区数据经纪人的典型实践案例为研究对象,揭示了数据经纪人在促进数据开放共享、流通与交... 数据经纪人在数据共享、流通、交易及应用等关键环节中扮演着重要角色。深入剖析了数据经纪人的内涵、特征、分类、理论与实践认识,并以广州市海珠区数据经纪人的典型实践案例为研究对象,揭示了数据经纪人在促进数据开放共享、流通与交易、提升资源配置效率以及释放数据要素价值方面的积极作用,提炼出具有中国特色的海珠数据经纪人创新模式,为数据经纪人行业的健康发展提供了借鉴与启示。研究表明,海珠区的数据经纪人在理论创新应用、制度创新与规范引领、规模与质量等方面具有明显优势,同时在角色定位、功能拓展及运行模式等方面更具创新应用。海珠区明确数据经纪人的三重角色--受托行权、风险控制、价值挖掘,不再局限于数据交易的撮合,还能够深入参与到数据的授权、风险管理和价值创造等环节,为数据要素市场提供更为全面和专业的服务。基于海珠区实践,建议进一步明确数据经纪人权责边界,完善分类分级管理体系,推动数据定价与标准化建设,并探索包容审慎的监管机制,以促进数据要素安全高效流通。 展开更多
关键词 数据经纪人 分类分级 数据三权分置 科斯定理 海珠模式
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新加坡数据安全治理模式及启示
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作者 李晓东 王义飞 吴菁 《信息安全研究》 北大核心 2026年第3期284-292,共9页
新加坡作为亚洲数字化水平较高的国家之一,研究其数据安全治理模式的成功经验,对于我国数据安全治理体系完善具有重要借鉴意义.通过采用文献综述法和比较研究法,从制度体系、发展历程和协同机制方面,梳理新加坡数据安全治理模式,发现如... 新加坡作为亚洲数字化水平较高的国家之一,研究其数据安全治理模式的成功经验,对于我国数据安全治理体系完善具有重要借鉴意义.通过采用文献综述法和比较研究法,从制度体系、发展历程和协同机制方面,梳理新加坡数据安全治理模式,发现如下特色:新加坡以国家创新战略引领数据安全治理,以个人数据权利带动数据安全治理,构建开放的数据跨境传输规则体系,形成了“权利促进型”数据安全治理模式.结合我国实际,提出数据安全治理模式的优化路径,包括以整体性战略统筹数据安全治理、持续深化个人数据权利保障体系、强化多元协同治理体系、构建安全有效数据跨境流动制度. 展开更多
关键词 数据安全 数据治理 数据权利 个人数据保护 “权利促进型”模式
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预测伴右向左分流患者发生隐源性卒中的机器学习模型构建及可解释性分析
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作者 高小丽 唐素娟 +1 位作者 田菲菲 赵洪芹 《中国脑血管病杂志》 北大核心 2026年第2期75-86,共12页
目的构建预测伴右向左分流(RLS)患者发生隐源性卒中的最优机器学习模型,并进行可解释性分析。方法回顾性连续纳入2018年1月至2024年12月于青岛大学附属医院崂山院区神经内科因偏头痛、不明原因头晕、卒中等行对比增强经颅多普勒超声(c-T... 目的构建预测伴右向左分流(RLS)患者发生隐源性卒中的最优机器学习模型,并进行可解释性分析。方法回顾性连续纳入2018年1月至2024年12月于青岛大学附属医院崂山院区神经内科因偏头痛、不明原因头晕、卒中等行对比增强经颅多普勒超声(c-TCD)发泡试验并诊断存在RLS的患者。收集患者的一般资料及经胸超声心动图(TTE)检查的各项心脏参数,包括性别、年龄、吸烟史、饮酒史、高血压病、糖尿病、高脂血症、左心房直径(LAd)、左心房短径(LASd)、左心房长径(LALd)、左心室舒张末期内径(LVDd)、左心室收缩末期内径(LVDs)、左心室后壁厚度(LVPW)、室间隔厚度(IVS)、左心室射血分数(LVEF)及肺动脉收缩压(PASP)。根据是否发生隐源性卒中将所有患者分为隐源性卒中组和未发生卒中组,比较两组患者的一般资料及TTE各项心脏参数。基于所有患者的一般资料及TTE检查的各项心脏参数构建预测RLS患者发生隐源性卒中的Logistic回归、决策树、随机森林、极限梯度提升(XGBoost)、梯度提升和极限树6种机器模型。采用重复10次5折交叉验证评估6种机器学习模型的性能并分别绘制受试者工作特征(ROC)曲线,计算平均曲线下面积(AUC)、精确率、召回率、准确率和F1得分。绘制6种机器学习模型的校准曲线评估各模型的预测概率是否接近真实概率,采用决策曲线分析(DCA)评估6种机器学习模型预测RLS患者发生隐源性卒中不同阈值概率区间内可提供的净获益,以确定预测模型的临床价值,阈值范围0~<0.3为低风险区域,0.3~0.6为中等风险区域,>0.6~1.0为高风险区域。以重复10次5折交叉验证中性能最优者(以AUC值为首要指标,AUC相同时优选敏感度最高者)为最优机器学习模型,采用Delong检验比较最优机器学习模型与其他模型间AUC差异。将所有患者按照8∶2的比例随机分层抽样划分为训练集和测试集,基于训练集重新训练最优机器学习模型,并输入测试集中的数据进行Shapley加性解释(SHAP)分析。通过特征重要性柱状图(按平均SHAP值的降序排序)识别预测RLS患者发生隐源性卒中的核心预测因子;采用SHAP散点图分析特征值与模型输出的关联;采用SHAP Force图解析各特征预测单例RLS患者发生隐源性卒中的贡献度。绘制SHAP重要性排名前2位特征的部分依赖图,评估2个特征在RLS患者发生隐源性卒中预测中的边际效应及其非线性趋势,以探索最优机器学习模型量化关键预测因子与隐源性卒中发生风险的关系。结果共纳入310例RLS患者,男181例,女129例,年龄18~70岁,中位年龄52(43,52)岁,其中隐源性卒中组164例,未发生卒中组146例。(1)与未发生卒中组比较,隐源性卒中组患者年龄及男性、高血压病、糖尿病、高脂血症、吸烟史、饮酒史患者比例均更高,且LAd、LASd、LALd、LVDd、LVDs、LVPW、IVS和PASP均更大(均P<0.05);LVEF组间比较差异无统计学意义(P=0.306)。(2)采用重复10次5折交叉验证评估预测RLS患者发生隐源性卒中的6种机器学习模型的ROC,结果显示,极限树模型预测RLS患者发生隐源性卒中的平均AUC最高(0.804),其次为随机森林(0.792)、梯度提升(0.777)、XGBoost(0.776)、Logistic回归(0.764)和决策树(0.717)。(3)校准曲线显示,极限树模型的校准曲线(Brier分数为0.197)更加贴近参考线,其次为随机森林(Brier分数为0.210)、Logistic回归(Brier分数为0.222)、梯度提升(Brier分数为0.244)、决策树(Brier分数为0.263),XGBoost(Brier分数为0.280)最差。DCA显示,在部分中等风险区域(0.3~0.6),极限树模型的DCA曲线展现出较高的净获益率,在部分点表现明显优于其他模型。在高等风险区域(>0.6~1.0)净获益率下降,在低风险区域(0~<0.3)净获益率低且趋近不干预曲线,差异缩小。6种机器学习模型中极限树表现最佳,AUC为0.804,准确率为0.719、F1得分为0.736。Delong检验结果显示,极限树模型与决策树模型的AUC差异有统计学意义(P<0.05),与其他机器学习模型的差异均无统计学意义(均P>0.05)。(4)310例RLS患者中,训练集248例,测试集62例。与测试集比较,训练集RLS患者PASP更高(P=0.037),余训练集与测试集一般资料及TTE各项心脏参数的组间差异均无统计学意义(均P>0.05)。(5)基于训练集重新训练极限树模型,并输入测试集中的数据进行SHAP分析,结果显示,LAd对极限树模型的重要性最大,其次依次为LALd、年龄、LVPW、LVDs、高血压病、LVDd、吸烟史、PASP。SHAP散点图显示,可能增加了RLS患者发生隐源性卒中风险的特征排名前2位为LAd和LALd。(6)极限树模型的Force图显示,当SHAP值为1.0时,患者年龄为68岁,其LAd、LALd、LVDd、IVS、LVDs分别为34、56、48、10、30 mm。其中,LALd区域占比最大,LVEF区域占比最小。(7)基于极限树模型特征重要性前2位LAd与LALd生成RLS患者发生隐源性卒中的部分依赖图显示,LAd<32 mm时其平均预测概率为0.40,LAd为32~42 mm时的平均预测概率从0.35升至0.60,LAd>42 mm时的平均预测概率增长趋缓(平均预测概率为0.65);LALd<40 mm时平均预测概率稳定在0.40以下,LALd 40~55 mm时持续升至近0.60,LALd>55 mm后增长变缓。结论基于RLS患者一般及TTE心脏参数构建的极限树模型可较为准确地预测RLS患者发生隐源性卒中的风险,其中LAd和LALd是影响极限树模型输出的排名前2位的重要因素,该模型在外部队列中的有效性及其对隐源性卒中发生风险的预测价值转化潜力仍有待进一步明确。 展开更多
关键词 机器学习 右向左分流 隐源性卒中 预测模型
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河北省矿产资源确权登记三维模式探索及实践
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作者 邢晓达 刘慎栋 +3 位作者 田东坡 霍伟奇 姜诺涵 李浚川 《自然资源信息化》 2026年第1期69-75,共7页
探明储量的矿产资源确权登记三维探索对于更加直观地划清矿产资源“四条边界”、明确矿产资源产权主体、推动矿产资源资产化管理与产权明晰化、实现矿产资源确权登记具有重要意义。本文立足河北省省级探明储量的矿产资源确权登记工作实... 探明储量的矿产资源确权登记三维探索对于更加直观地划清矿产资源“四条边界”、明确矿产资源产权主体、推动矿产资源资产化管理与产权明晰化、实现矿产资源确权登记具有重要意义。本文立足河北省省级探明储量的矿产资源确权登记工作实践和应用,选取宁晋段家庄石盐矿、沙河中关铁矿作为试点,系统开展了三维建模与三维可视化等技术方法的探索与应用。围绕资料收集、资料分析、三维建模等关键登记流程,梳理并总结了一系列需要注意的技术问题。研究分析了当前矿产资源确权登记过程中在多源资料利用及登记单元优化、模型精度控制、登记簿优化、自然资源数据库优化等方面存在的挑战,并针对性地提出了推动数据共享、优化建模方法、明确三维登记规范等建议。本文不仅为河北省推进矿产资源确权登记提供了切实可行的三维技术路径和实践参考,也对其他地区类似工作的开展具有重要的借鉴意义。 展开更多
关键词 探明储量 矿产资源 确权登记 三维建模
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中国知识产权司法保护与高端生产性服务业空间集聚——来自286个城市的经验证据
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作者 周游 吴钢 《南昌大学学报(人文社会科学版)》 北大核心 2026年第1期101-113,共13页
完善的知识产权司法保护制度是驱动生产性服务业高端化发展的重要保障。利用2000―2023年中国286个城市面板数据,从空间视角探究了知识产权司法保护对高端生产性服务业集聚的决定作用。研究发现,中国城市知识产权司法保护水平与高端生... 完善的知识产权司法保护制度是驱动生产性服务业高端化发展的重要保障。利用2000―2023年中国286个城市面板数据,从空间视角探究了知识产权司法保护对高端生产性服务业集聚的决定作用。研究发现,中国城市知识产权司法保护水平与高端生产性服务业集聚程度不断提升,空间分布呈现显著地理协同性;知识产权司法保护水平提升对城市高端生产性服务业集聚具有显著促进作用,且在东、中部板块城市表现尤为明显,但在西部和东北部板块城市并不显著。控制反向因果、异常值并替换变量测度后进行稳健性检验,回归结论依然成立;扩大样本进行蒙特卡洛模拟发现,东北和西部板块城市知识产权保护变量的显著性明显增强。研究拓展了创新驱动理论在服务业转型中的应用,为差异化制定区域知识产权司法保护战略、优化城市生产性服务业空间布局提供了经验证据。 展开更多
关键词 高端生产性服务业 知识产权司法保护 探索性空间分析 空间计量模型
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数据要素化政策解读与交易模式探索
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作者 叶朱志 马牧野 《中国建设信息化》 2026年第4期64-68,共5页
数据作为新型生产要素,其市场化配置是数字经济高质量发展的核心引擎。本文以我国数据要素化相关政策为研究对象,系统梳理从“数据二十条”到《“数据要素×”三年行动计划》的政策演进脉络,重点解读数据产权、流通交易、收益分配... 数据作为新型生产要素,其市场化配置是数字经济高质量发展的核心引擎。本文以我国数据要素化相关政策为研究对象,系统梳理从“数据二十条”到《“数据要素×”三年行动计划》的政策演进脉络,重点解读数据产权、流通交易、收益分配、安全治理四大核心制度框架。同时,结合国内主要数据交易所实践案例,深入分析场内交易、场外交易及混合交易模式的运作机制、适用场景与优劣特征,剖析当前数据要素化进程中面临的确权难、定价难、流通难、监管难等现实瓶颈。最后,从政策完善、技术创新、生态培育三个维度提出优化路径,为推动数据要素合规高效流通、充分释放乘数效应提供理论参考与实践借鉴。 展开更多
关键词 数据要素化 政策解读 交易模式 数据产权 安全治理
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数字化工具赋能高中数学实验建模教学
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作者 吴子昊 吴茎洁 马超群 《上海课程教学研究》 2026年第1期47-53,共7页
针对传统数学建模教学中实践体验不足的问题,在课堂数字化转型背景下,提出以数学实验为载体的数学建模教学模式。以“制作直角圆管弯头”为例,整合生成式人工智能(如DeepSeek)、动态几何软件(如GeoGebra)、3D打印等数字化工具,引导学生... 针对传统数学建模教学中实践体验不足的问题,在课堂数字化转型背景下,提出以数学实验为载体的数学建模教学模式。以“制作直角圆管弯头”为例,整合生成式人工智能(如DeepSeek)、动态几何软件(如GeoGebra)、3D打印等数字化工具,引导学生经历完整的建模过程,建立正弦型函数模型。实践表明,该模式通过具身化学习有效促进了数学建模、直观想象等核心素养的发展,凸显了数字化技术对优化建模流程、深化模型理解的关键赋能作用。 展开更多
关键词 数字化技术 高中数学 数学建模 数学实验 直角圆管弯头
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大语言模型开发应用中作品使用法定许可制度研究
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作者 程迈 《政治与法律》 北大核心 2026年第1期18-32,共15页
大语言模型的开发应用需要利用大量作品。这些利用行为在对作者财产与人身权益造成侵权风险的同时,也在挤压作者群体的经济与艺术生存空间,使得作者群体处于不利境地。目前的法律制度在应对这些侵权风险、保护作者利益方面存在着规范供... 大语言模型的开发应用需要利用大量作品。这些利用行为在对作者财产与人身权益造成侵权风险的同时,也在挤压作者群体的经济与艺术生存空间,使得作者群体处于不利境地。目前的法律制度在应对这些侵权风险、保护作者利益方面存在着规范供给短缺、调整方案解释力不足的情况。作品对于大语言模型的完善与提高具有重要的科研、经济、社会乃至文化价值。大语言模型能够充分利用大量优秀作品、新作品,不仅事关大语言模型技术提高,而且事关人类社会持续健康发展。为了打通目前制约大语言模型合法利用作品的法律制度堵点,应以促进作者权益实现与作品使用成本内化为原则,扩展著作权法中的作品使用法定许可制度,引入侵权争议首问最终用户原则,针对营利型大语言模型开发应用方设置特别企业所得税,降低作者个人所得税率并设立出版资助基金,以将大语言模型开发应用中的红利反哺作者群体。 展开更多
关键词 大语言模型 作者权益保护 用户责任 作品合理使用 作品使用法定许可
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Research on Light Response Curve Fitting Model of Four Chamaenerion Plants on the Serzilla Mountains
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作者 Lusheng Wan Zhen Xing +2 位作者 Xinyue Chang Jiang Liu Guorong Zhang 《American Journal of Plant Sciences》 2018年第8期1630-1645,共16页
In order to study the applicability of different light response models to the photoresponse curves of four species of Chamaenerion, four species of Chamaenerion collected from Serzilla were used as test materials. Fou... In order to study the applicability of different light response models to the photoresponse curves of four species of Chamaenerion, four species of Chamaenerion collected from Serzilla were used as test materials. Four common photosynthetic models were used to fit the photosynthetic response curve of the leaves. The results show that: 1) The effect of different photosynthetic response models on photosynthetic response curve of the genus chromasia was different. The fitted value of the correction model of right angled hyperbola was closest to the measured value, the R2 was 0.998, and RE was 0.216. 2) In terms of fitting the photosynthetic parameters, the initial quantum efficiency, light compensation point and dark respiration rate were suitable for fitting with non-right angle hyperbolic model. In terms of fitting the photosynthetic parameters, the initial quantum efficiency, light compensation point and dark respiration rate were suitable for fitting with non-right angle hyperbolic model. 3) The photosynthetic characteristics of C. angustifolium subsp. circumvagum reflect the negative response to high altitude radiation. Under strong radiation, the photosynthetic rate, apparent quantum efficiency, and light saturation point are low. On the other hand, C. conspersum has a positive response to high altitude radiation. C. angustifolium and C. latifolium has a higher light compensation point and higher light saturation point, but it is also positive for high altitude radiation. The response is only a choice of light intensity at different elevations, which also explains the distribution of C. angustifolium and C. latifolium in the salmonella with a single elevation, habitat, and slope. 展开更多
关键词 ALPINE Plant Chamaenerion Optical Response CURVE right Angle HYPERBOLIC Correction model
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两大法系背景下的植物品种保护制度 被引量:1
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作者 李明德 《知识产权》 北大核心 2025年第10期3-18,共16页
植物品种和植物品种培育过程中产生的技术发明,属于人类智力活动成果。关于植物品种的保护,欧洲大陆国家探索了品种权保护模式,美国探索了专利权保护模式。随着植物品种培育技术的不断发展,又有了品种权保护模式与专利权保护模式的相互... 植物品种和植物品种培育过程中产生的技术发明,属于人类智力活动成果。关于植物品种的保护,欧洲大陆国家探索了品种权保护模式,美国探索了专利权保护模式。随着植物品种培育技术的不断发展,又有了品种权保护模式与专利权保护模式的相互融合。了解欧美国家关于植物品种保护模式的变迁,有助于进一步完善我国的植物品种保护制度。 展开更多
关键词 植物品种权 专利权保护模式 品种权与专利权融合
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