Relativistic atomic data for W XLVⅡ

Energy levels, radiative rates, and lifetimes are calculated for all levels of 3s23p, 3s23d, 3s3p2, 3s3d2, 3s3p3d, 3p23d, 3s3d2, 3p3d2, 3p3, and 3d3 configurations of Al-like tungsten ion （W XLVII）. Multiconfigurational Dirac-Fock （MCDF） method is adopted for calculating energy levels and radiative rates. Oscillator strengths, radiative rates, and line strengths are reported for some E1 transitions from the ground level. Comparisons are made with the available data in the literature and good agreement has been found which confirms the reliability of our results.

New atomic data for Kr XXXV useful in fusion plasma

Energy levels and emission line wavelengths of high-Z materials are useful for impurity diagnostics due to their potential application in the next generation fusion devices.For this purpose,we have calculated the fine structural energies of the 67 levels belonging to the 1s 2,1s2l,1s3l,1s4l,1s5l,and 1s6l configurations of Kr XXXV using GRASP（general purpose relativistic atomic structure package） code.Additionally,we have reported the transition probabilities,oscillator strengths,line strengths,and transition wavelengths for some electric dipole（E1） transitions among these levels.We predict new energy levels and radiative rates,which have not been reported experimentally or theoretically,forming the basis for future experimental work.

Fine Structure Calculations of Atomic Data for Ar XVI

Fine structure energy levels, wavelengths, log gf and allowed transition probabilities (E1) have been calculated for Lithium-like Ar XVI. The optimized electrostatic parameters by a least square approach, have been used in the calculation to include the configuration interaction and relativistic effects. A total number of 69 Ar XVI levels having total angular momenta, 1/2 ≤ J ≤ 9/2 of even and odd parities, orbital angular momenta 2 ≤ l ≤ 4, with 546 E1 transitions for 6 ≤ n ≤ 10 are considered using the relativistic effect in the Breit-Pauli method, where n is the principal quantum number. A comparison is made with the available results in literature.

基于K-means聚类算法的人事管理异常数据识别和自动处理系统

针对人事管理异常数据影响人事管理水平的问题,设计基于K-means聚类算法的人事管理异常数据识别和自动处理系统。利用全局优化K-means聚类算法,对人事管理数据进行聚类处理。该算法搜寻高密度的人事管理数据作为初始聚类中心,将人事管理数据聚类为多个簇。利用K-means聚类算法构建人事管理数据的自回归模型,确定人事管理数据参量的转移概率序列。转移概率序列非聚类簇中的数据时,对应数据即为人事管理异常数据识别结果。采用指数加权移动平均数方法自动修正处理所识别的人事管理异常数据。系统测试结果表明,所设计系统能够有效识别人事管理考勤数据、薪资数据中的异常数据,能够自动修正异常数据,使人事管理数据恢复正常。

Extreme ultraviolet and x-ray transition wavelengths in Rb XXIV

Energy levels, radiative rates, oscillator strengths and line strengths are reported for transitions among the lowest 97 levels of the（1s22s22p6） 3s23p2, 3s23p3 d, 3s3p3, 3p4, 3s3p23 d, and 3s23d2 configurations of Rb XXIV. A multiconfiguration Dirac-Fock（MCDF） method is adopted for the calculations. Radiative rates, oscillator strengths, and line strengths are provided for all electric dipole（E1）, magnetic dipole（M1）, electric quadrupole（E2）, and magnetic quadrupole（M2）transitions from the ground level to all 97 levels, although calculations are performed for a much larger number of levels.To achieve the accuracy of the data, comparisons are provided with similar data obtained from the Flexible Atomic Code（FAC） and also with the available theoretical and experimental results. Our energy levels are found to be accurate to better than 1.2%. Wavelengths calculated are found to lie in EUV（extreme ultraviolet） and x-ray regions. Additionally, lifetimes for all 97 levels are obtained for the first time.

Atomic structure calculations for F-like tungsten

Energy levels, wavefunction compositions and lifetimes have been computed for all levels of ls^22s^22p^5, ls^22s^2p^6, ls^22s^22p^43s, ls^22s^22p^43p, and ls^22s^22p^43d configurations in highly charged F-like tungsten ion. The multiconfigurational Dirac-Fock method （MCDF） is adopted to generate the wavefunctions. We have also presented the transition wavelengths, oscillator strengths, transition probabilities, and line strengths for the electric dipole （El） and magnetic quadrupole （M2） transition from the ls^22s^22p^5 ground configuration. We have performed parallel calculations with the flexible atomic code （FAC） for comparing the atomic data. The reliability of present data is assessed by comparison with other theoretical and experimental data available in the literature. Good agreement is found between our results and those obtained using different approaches confirm the quality of our results. Additionally, we have predicted some new atomic data for F-like W that were not available so far and may be important for plasma diagnostic analysis in fusion plasma.

Emission Intensity in the Hydrogen Atom Calculated from a Non-Probabilistic Approach to the Electron Transitions

Quantum aspects of the Joule-Lenz law for the transmission of energy allowed us to calculate the time rate of energy transitions between the quantum states of the hydrogen atom in a fully non-probabilistic way. The calculation has been extended to all transitions between p and s states having main quantum numbers not exceeding 6. An evident similarity between the intensity pattern obtained from the Joule-Lenz law and the corresponding quantum-mechanical transition pro-babilities has been shown.

Semiclassical and Quantum-Mechanical Formalism Applied in Calculating the Emission Intensity of the Atomic Hydrogen

The energy spectrum of the hydrogen atom has been applied in calculating the time rate of energy transitions between the quantum states of the atom. The formal basis of the approach has been provided by the quantum properties of energy and time deduced from the Joule-Lenz law. The rates of the energy transitions obtained in this way were compared with the quantum-mechanical probabilities of transitions calculated earlier by Bethe and Condon and Shortley for the same pairs of the quantum states.

Stark spectra of Rydberg states in atomic cesium in the vicinity of n=18

The Stark structures in a cesium atom around n=18 are numerically calculated. The results show that the components of 20D states with a small azimuthal quantum number ｜m｜ shift upward a lot, and those with a large ｜m｜ shift downward a little within 1100 V/cm. All components of P states shift downward. Experimental work has been performed in ultracold atomic cesium. Atoms initially in 6P3/2 state are excited to high-n Rydberg states by a polarization light perpendicular to the field, and Stark spectra with ｜m｜=1/2,3/2,5/2 are simultaneously observed with a large linewidth for the first time. The observed spectra are analyzed in detail. The relative transition probability is calculated. The experimental results are in good agreement with our numerical computation.

基于眼动数据的管制员注意力特征评价

为提高管制员培训的针对性和有效性,提升管制过程的安全性,提出使用注意力稳定性、注意力分配与转移和注意力广度3个指标,作为注意力特征的评价指标;设计并开展管制过程模拟管制试验,采集分析36名成熟管制员的眼动数据;提出选取兴趣区访问次数方差(VVC)、马尔可夫转移概率(MTP)和特情反应时间(RT)3个参数,将其作为刻画注意力特征3个评价指标对应的量化参数值,再使用K-Means聚类分析法对管制员的注意力特征进行分类,得到管制员注意力特征的评价值的结果分类区间,并对比评价结果与教员打分结果。结果表明:根据注意力特征,将管制员分成4类,一类为最优,四类为最差。优秀管制员具有注意力稳定性好、注意力分配合理、注意广度大和对特情敏感的特点,其量化参数值包括:VVC为13.48~95.46,MTP为0.03~0.22,RT为3~31 s。

基于差分隐私的企业财务会计数据安全共享方法研究

针对现有财务会计数据共享中存在开销较大、隐私安全性较低等问题,提出一种基于差分隐私的企业财务会计数据安全共享方法.通过差分隐私技术构建强化学习的形式化模型,在建模过程中引入马尔可夫决策过程,确定会计数据状态,并获得对应最优值函数,完成企业财务会计数据的动态隐私发布;在此基础上,设计会计数据协作服务,该数据协作服务由四种网络实体构成,分别为域密钥生成器、层密钥生成器、根密钥生成器和云服务器,防止企业财务会计数据存储时泄露,实现细粒度访问控制和数据写操作.通过区块链构建企业财务会计数据安全共享模型,模型由以太坊区块链、贡献者节点、访问者节点,以及链上激励模块构成,实现企业财务会计数据安全共享.通过三个实验数据集测试方法性能,测试结果表明:设计方法隐私安全性较高,能够保持较小的数据损失,且设计方法可在较低的开销下实现会计数据安全共享.

基于电信大数据的5G网络海量用户复访行为预测模型

5G网络中的用户会产生大量的访问数据,导致用户复访行为难以精准预测,因此提出基于电信大数据的5G网络海量用户复访行为预测模型。从电信大数据中提取用户上网历史行为特征数据,构建数据集。引入多阶加权马尔可夫链模型,通过计算各阶自相关系数,得到模型权重值,计算模型的统计量。经过分析后得到各阶步长的马尔可夫氏链一步转移概率矩阵,从而实现对5G网络海量用户复访行为的精准预测。实验结果表明,该模型拥有最低的均值误差和标准差,以及最高的精度、查全率、查准率、F1指标,可证明该方法在预测用户复访行为方面有着非常明显的优势。

基于神经网络的高比例异常数据识别仿真

针对因高比例异常数据的特征种类较多且存在状态转移特性,导致识别误差大的问题,提出一种基于神经网络的高比例异常数据识别算法。根据相邻数据集间具有时间和空间相关性特点,建立数据基础状态映射序列,计算数据样本在不同空间、不同时间点上的初始状态和结束状态,以及上一时刻和当下一时刻的数据空间和时间所属状态,根据前后变化对比得到状态转移概率,计算提取数据在不同时间点的具体特征。采用神经网络建立高比例异常数据识别模型,对待识别样本标准化处理,定义标准样本并提取特征因子,求解样本集中所有数据与标准样本的隶属度,存在正向相关关系为正常样本,反向则为异常数据样本,通过阈值对比实现高比例异常数据的有效识别。实验结果表明,所提算法识别精准度较高,误差率较低,具有一定的实用价值。

基于改进灰色Markov模型的建筑工程造价预测研究

针对建筑工程造价样本中特征量较多、难以提取导致的数值预测精准度不高的问题,提出基于改进灰色Markov模型的预测研究,以实现有效解决。首先采用线性回归分析法获得建筑造价样本中人工费、机械使用费、材料费以及总造价等子明细特征的先验数据,并建立数据矩阵。然后通过前后相邻数值求得概率均值,并初值化处理均值数据得到对应子明细特征的先验模型。基于灰色Markov模型一阶代表一个变量的特点,建立微分预测模型,计算每次数据更新生成的特征值变化,并与初始值对比,生成特征向量变化序列。最后采用最小二乘积算法求得数据状态转移概率,结合待预测点的向量和转移概率,通过查找对比得出有效工程造价预测。实验数据证明,所提方法针对建筑工程造价的特征量分布情况预测精准度高,造价预测值与真实值间的差距较小,预测性能表现优异。

基于隐私保护的分类挖掘

基于隐私保护的分类挖掘是近年来数据挖掘领域的热点之一,如何对原始真实数据进行变换,然后在变换后的数据集上构造判定树是研究的重点·基于转移概率矩阵提出了一个新颖的基于隐私保护的分类挖掘算法,可以适用于非字符型数据(布尔类型、分类类型和数字类型)和非均匀分布的原始数据,可以变换标签属性·实验表明该算法在变换后的数据集上构造的分类树具有较高的精度·

基于Web日志的用户访问路径提取与分析

线上购物相对线下购物的一个特点是可以将用户的购物过程记录到网站的Web日志中,为研究用户网上行为特征提供必要的数据支持。本文详细介绍了对Web日志数据进行预处理的一系列步骤和方法,并以某出版社网站18天的日志数据为实证,提取出用户的访问路径（访问页面的先后次序）,分析路径信息得到用户在不同页面之间访问的转换概率,从而定量地衡量购物流程中各步骤之间的转换率和贡献率,提炼出用户最有可能的前向转换路径和后向转换路径,以期对网站流程优化和商品促销设置提供决策支持。

温度对铷原子D_2线饱和吸收光谱的影响

从理论上分析了铷原子蒸汽温度对87Rb和85Rb D2线饱和吸收光谱在消除了多普勒背景情况下的光谱相对强度的影响.由于有效原子数密度、多普勒加宽、电极化率受温度变化的影响,每一条超精细谱线的相对强度随着温度的升高都会出现先增大后减小的变化趋势,相对强度最高时的温度称为最佳温度.对于87Rb或85Rb来说,不同超精细谱线最佳温度不同的主要原因是由于烧孔面积和跃迁几率不同造成的,而87Rb和85Rb不同超精细谱线最佳温度不同的主要原因是由于它们在自然界中丰度不同造成的.

纳米GeSb_2Te_4薄膜在大气环境中的摩擦性能研究

采用摩擦力显微镜考察了磁控溅射纳米GeSb2Te4薄膜在大气环境中的微观摩擦性能,利用JKRS理论分析了针尖同GeSb2Te4薄膜接触时的粘附力和表面能之间的关系.结果表明:当湿度较大时,粘附力较大;而当湿度较小时,粘附力较小;当针尖表面能一定时,粘附力的微小变化可以导致GeSb2Te4薄膜的表面能产生较明显变化;随着扫描范围逐渐减小,摩擦力变化趋于稳定;不同扫描速度下法向力和摩擦力保持较好线性关系,但不同扫描速度下的平均摩擦力随扫描速率变化而呈现非线性变化;为了更好地分析探针和样品表面的微观摩擦机制,宜选择扫描范围为0.1～0.5μm或更小.

融合时间特征的高分辨率遥感影像分类

为了充分利用历史矢量数据,并考虑地物类别的时间关联,提出了一种融合时间特征的高分辨率遥感影像分类方法。将历史时期矢量数据与新时期遥感影像相结合,利用二次分割获取像斑,通过支持向量机(support vector machine,SVM)算法获取像斑类别及像斑的单时期后验概率;依据历史时期及新时期像斑类别属性的关联,获取定量表达时间特征的地物类别转移概率;加权组合像斑的单时期后验概率与转移概率,采用迭代方法获取影像最终分类结果。在Quick Bird影像上的实验表明,该方法能够有效引入时间特征及先验知识,提高影像分类的精度。

基于GPS轨迹数据的拥堵路段预测

基于真实的GPS轨迹数据,对城市拥堵路段进行预测.在此过程中,摒弃传统的基于交通流预测和拥堵识别的方法,提出一种新的基于拥堵向量和拥堵转移矩阵的拥堵路段预测方法.该方法同时考虑路段拥堵的时间周期性和时空相关性,通过对出租车GPS轨迹数据进行挖掘和训练,建立拥堵向量和拥堵转移矩阵,实现对拥堵路段的预测.真实数据集上的实验验证了所提的拥堵路段预测方法的有效性.