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An efficient quantum proactive incremental learning algorithm

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 49-57页

作者： lingxiao li Jing li Yanqi Song Sujuan Qin Qiaoyan wen Fei Gao State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications School of Cyberspace Security Beijing University of Posts and Telecommunications

In scenarios where a large amount of data needs to be learned, incremental learning can make full use of old knowledge, significantly reduce the computational cost of the overall learning process, and maintain high performance. In this paper, taking the MaxCut problem as our example, we introduce the idea of incremental learning into quantum computing, and propose a Quantum Proactive Incremental Learning algorithm(QPIL). Instead of a one-off training of quantum circuit, QPIL contains a multi-phase training on gradually-increased subgraphs of all vertices, proactively reducing large-scale problems to smaller ones to solve in steps, providing an efficient solution for MaxCut. Specifically, some vertices and corresponding edges are randomly selected for training to obtain optimized parameters of the quantum circuit at first. Then, in each incremental phase, the remaining vertices and corresponding edges are gradually added and the parameters obtained from the previous phase are reused in the parameter initialization of the current phase. We perform experiments on 120 different small-scale graphs, and it shows that QPIL performs superior to prevalent quantum and classical baselines in terms of approximation ratio(AR), time cost, anti-forgetting, and solving stability. In particular, QPIL's AR surpasses 20% of mainstream quantum baselines, and the time cost is less than 1/5 of them. The idea of QPIL is expected to inspire efficient and high-quality solutions in large-scale Max Cut and other combinatorial optimization problems.

关键词： variational quantum algorithm incremental learning multi-phase training MaxCut quantum computing

Wave effect of gravitational waves intersected with a microlens field Ⅱ:An adaptive hierarchical tree algorithm and population study

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 241-254页

作者： Xikai Shan Guoliang li Xuechun Chen wen Zhao Bin Hu Shude Mao Department of Astronomy Tsinghua University Purple Mountain Observatory Chinese Academy of Sciences Institute for Frontier in Astronomy and Astrophysics Beijing Normal University School of Physics and Astronomy Beijing Normal University School of Astronomy and Space Science University of Science and Technology of China CAS Key Laboratory for Researches in Galaxies and Cosmology Department of Astronomy University of Science and Technology of ChinaChinese Academy of Sciences

The gravitational lensing wave effect generated by a microlensing field embedded in a lens galaxy is an inevitable phenomenon in strong lensed gravitational waves （SLGWs）.This effect presents both challenges and opportunities for the detection and application of ***,investigating this wave effect requires computing a complete diffraction integral over each microlens in the *** is extremely time-consuming due to the large number of microlenses （10～3-10～6）.Therefore,simply adding all the microlenses is ***,the complexity of the time delay surface makes the lens plane resolution a crucial factor in controlling numerical *** this paper,we propose a trapezoid approximation-based adaptive hierarchical tree algorithm to meet the challenges of calculation speed and *** find that this algorithm accelerates the calculation by four orders of magnitude compared to the simple adding method and is one order of magnitude faster than the fixed hierarchical tree algorithm proposed for electromagnetic *** importantly,our algorithm ensures controllable numerical errors,increasing confidence in the *** with our previous work （***.66,239511,2023）,this paper addresses all numerical issues,including integral convergence,precision,and computational time1).Finally,we conducted a population study on the microlensing wave effect of SLGWs using this algorithm and found that the microlensing wave effect cannot be ignored,especially for Type II SLGWs （from saddle position of the time delay surface） due to their intrinsic geometric structures and their typical intersection with a denser microlensing ***,more than 33%（11%） of SLGWs have a mismatch larger than 1%（3%） compared to the unlensed ***,we found that the mismatch between signal pairs in a doubly imaged GW is generally larger than 10-3,and 61%（25%） of signal pairs have a mismatch larger than 1%（3%）.Therefo

关键词： gravitational lensing diffractional integral algorithm gravitational wave

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基于微量铁测定的峰面积技术方法研究

食品科技 2008年第8期33卷 216-217页

作者：李文典张东军漯河职业技术学院轻工系漯河462000

引入光谱峰面积技术,在邻二氮菲光度法测定金属元素含量的基础上,对微量铁进行定量测定分析研究。本方法灵敏度较高、干扰较少、稳定性好,用于食品中微量铁的测定,避免了有关离子的干扰,提高了准确度。对于面粉、奶粉和肝等食品样品进... 详细信息

引入光谱峰面积技术,在邻二氮菲光度法测定金属元素含量的基础上,对微量铁进行定量测定分析研究。本方法灵敏度较高、干扰较少、稳定性好,用于食品中微量铁的测定,避免了有关离子的干扰,提高了准确度。对于面粉、奶粉和肝等食品样品进行分析测定,结果令人满意。该方法检出限为0.076μg/mL,线性范围为0.45～520μg/mL,样品回收率很高。

关键词：峰面积法微量铁测定食品研究

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基于改进的SVM短期负荷预测研究

电测与仪表 2014年第18期51卷 1-4页

作者：王义军李殿文东北电力大学电气工程学院吉林吉林132012

提出一种基于数据挖掘技术的电力负荷短期预测方法,将SVM方法引入到短期负荷预测研究领域。通过随机选取历史负荷数据来更新回归函数,这样可以充分保证计算速度和较高的预测精度。提出利用松原地区的历史负荷数据作为训练样本,通过与传... 详细信息

提出一种基于数据挖掘技术的电力负荷短期预测方法,将SVM方法引入到短期负荷预测研究领域。通过随机选取历史负荷数据来更新回归函数,这样可以充分保证计算速度和较高的预测精度。提出利用松原地区的历史负荷数据作为训练样本,通过与传统的BP神经网络预测模型进行对比,对预测结果进行比较,证明SVM预测方法在一定程度上能够保证短期负荷预测的精度。

关键词：电力系统气象因素支持向量机短期负荷预测

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应用光谱峰面积法测定食品微量铁含量

食品研究与开发 2008年第6期29卷 111-112页

作者：李文典杨艳杰漯河职业技术学院轻工系河南漯河462000 漯河医学院高等专科学校河南漯河462000

在邻二氮菲光度法测定金属元素含量的基础上,引入光谱峰面积技术,对微量铁进行定量测定。该方法检出限为0.076 mg/L,线性范围为0.45 mg/L^520 mg/L,样品回收率很高。本方法灵敏度较高,干扰较少,稳定性好,用于食品中微量铁的测定,避免了... 详细信息

在邻二氮菲光度法测定金属元素含量的基础上,引入光谱峰面积技术,对微量铁进行定量测定。该方法检出限为0.076 mg/L,线性范围为0.45 mg/L^520 mg/L,样品回收率很高。本方法灵敏度较高,干扰较少,稳定性好,用于食品中微量铁的测定,避免了有关离子的干扰,提高了准确度。对于面粉、奶粉和肝等食品样品进行分析测定,结果令人满意。

关键词：峰面积法微量铁邻二氮菲

电梯平衡系数检测仪示值误差测量结果不确定度评定方法及实例

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品牌与标准化 2018年第1期 72-74页

作者：李殿文辽宁省计量科学研究院辽宁沈阳110004

本文介绍了电梯平衡系数检测仪的测量过程,并给出了电梯平衡系数检测仪示值误差测量结果的不确定度评定方法以及不确定度评定的实例。

关键词：电梯平衡系数检测仪不确定度测量结果

混凝土贯入阻力测定仪测量结果不确定度评定方法

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品牌与标准化 2018年第3期 32-34页

作者：李殿文辽宁省计量科学研究院辽宁沈阳110004

本文介绍了混凝土贯入阻力测定仪的测量过程,并给出了混凝土贯入阻力测定仪测量结果示值误差的不确定度评定方法以及不确定度评定的实例,为评定混凝土贯入阻力测定仪的不确定度提供参考借鉴。

关键词：混凝土贯入阻力测定仪不确定度测量结果

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漆膜冲击器校准方法及校准结果不确定度评定

品牌与标准化 2018年第2期 54-56,59页

作者：李殿文辽宁省计量科学研究院辽宁沈阳110004

本文介绍了漆膜冲击器的校准方法,并基于用此种方法给出校准结果的不确定度评定过程。通过符合性判断和比较两种校准方法得到扩展不确定度,得出两种校准方法均满足校准漆膜冲击器的要求,并给出了日常校准过程中推荐使用的校准方法。

关键词：漆膜冲击器不确定度校准结果

Mechanical Properties of Railway High-strength Manufactured Sand Concrete: Typical lithology, Stone Powder Content and Strength Grade

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 194-203页

作者： WANG Zhen li Huajian HUANG Fali YANG Zhiqiang wen Jiaxin SHI Henan Railway Engineering Research Institute China Academy of Railway Science Corporation LimitedBeijing 100081China State Key Laboratory for Track Technology of High-Speed Railway Beijing 100081China

In order to achieve the large-scale application of manufactured sand in railway high-strength concrete structure,a series of high-strength manufactured sand concrete(HMC)are prepared by taking the manufactured sand lithology(tuff,limestone,basalt,granite),stone powder content(0,5%,10%,15%)and concrete strength grade(C60,C80,C100)as *** evolution of mechanical properties of HMC and the correlation between cubic compressive strength and other mechanical properties are *** to river sand,manufactured sand enhances the cubic compressive strength,axial compressive strength and elastic modulus of concrete,while its potential microcracks weaken the flexural strength and splitting tensile strength of *** powder content displays both positive and negative effects on mechanical properties of HMC,and the stone powder content is suggested to be less than 10%.The empirical formulas between cubic compressive strength and other mechanical properties are proposed.

关键词： manufactured sand concrete railway mechanical property lithology stone powder content