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个性化机器人 1

习惯学习 1

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多类学习;最大间隔学习;在线算法 1

多轴差分吸收光谱仪 1

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波音737 Max Saga——自动化缺陷

Chris Palmer

《工程(英文)》 2020年 第6卷 第1期   页码 2-3 doi: 10.1016/j.eng.2019.11.002

Genome-wide association study of the backfat thickness trait in two pig populations

Dandan ZHU,Xiaolei LIU,Rothschild MAX,Zhiwu ZHANG,Shuhong ZHAO,Bin FAN

《农业科学与工程前沿(英文)》 2014年 第1卷 第2期   页码 91-95 doi: 10.15302/J-FASE-2014005

摘要: Backfat thickness is a good predictor of carcass lean content, an economically important trait, and a main breeding target in pig improvement. In this study, the candidate genes and genomic regions associated with the tenth rib backfat thickness trait were identified in two independent pig populations, using a genome-wide association study of porcine 60K SNP genotype data applying the compressed mixed linear model (CMLM) statistical method. For each population, 30 most significant single-nucleotide polymorphisms (SNPs) were selected and SNP annotation implemented using Build 10.2. In the first population, 25 significant SNPs were distributed on seven chromosomes, and SNPs on SSC1 and SSC7 showed great significance for fat deposition. The most significant SNP (ALGA0006623) was located on SSC1, upstream of the gene. In the second population, 27 significant SNPs were recognized by annotation, and 12 SNPs on SSC12 were related to fat deposition. Two haplotype blocks, M1GA0016251-MARC0075799 and ALGA0065251-MARC0014203-M1GA0016298-ALGA0065308, were detected in significant regions where the and genes were identified as contributing to fat metabolism. The results indicated that genetic mechanism regulating backfat thickness is complex, and that genome-wide associations can be affected by populations with different genetic backgrounds.

关键词: backfat thickness     SNP chip     genome-wide association study     compressed mixed linear model     pig    

Numerical analysis of strongly nonlinear oscillation systems using He’s max-min method

H. BABAZADEH, G. DOMAIRRY, A. BARARI, R. AZAMI, A. G. DAVODI

《机械工程前沿(英文)》 2011年 第6卷 第4期   页码 435-441 doi: 10.1007/s11465-011-0243-x

摘要:

Nonlinear functions are crucial points and terms in engineering problems. Actual and physical problems can be solved by solving and processing such functions. Thus, most scientists and engineers focus on solving these equations. This paper presents a novel method called the max-min method for presenting an accurate approximate analytical solution to strong nonlinear oscillators. It can solve many linear or nonlinear differential equations without the tangible restriction of sensitivity to the degree of the nonlinear term. It is also quite convenient due to the reduction in the size of calculations. The algorithm suggests a promising approach and is systematically illustrated step by step.

关键词: min-max method     nonlinear oscillation     duffing equation     mathematical pendulum     He’s energy balance method    

基于最大间隔的贝叶斯分类器 Article

Tao-cheng HU,Jin-hui YU

《信息与电子工程前沿(英文)》 2016年 第17卷 第10期   页码 973-981 doi: 10.1631/FITEE.1601078

摘要: 概要:多分类学习中经常需要考虑在泛化性能和计算开销间进行权衡。本文提出一个生成式概率多分类器,综合考虑了泛化性和学习/预测速率。我们首先证明了我们的分类器具有最大间隔性质,这意味着对于未来数据的预测精度几乎和训练阶段一样高。此外,我们消除了目标函数中的大量的局部变元,极大地简化了优化问题。通过凸分析和概率语义分析,我们设计了高效的在线算法,与经典情形的最大不同在于这个算法使用聚集而非平均化处理梯度。实验证明了我们的算法具有很好的泛化性能和收敛速度。

关键词: 多类学习;最大间隔学习;在线算法    

通过行为足迹学习人类习惯的个性化服务机器人 Article

李坤, Max Q.-H. Meng

《工程(英文)》 2015年 第1卷 第1期   页码 79-84 doi: 10.15302/J-ENG-2015024

摘要:

对家用的私人机器人来说,个性化服务和预先设计的任务同样重要,因为机器人需要根据操作者的习惯调整住宅状况。为了学习由诱因、行为和回报构成的操作者习惯,本文介绍了行为足迹,以描述操作者在家中的行为,并运用逆向增强学习技巧提取用回报函数代表的操作者习惯。本文用一个移动机器人调节室内温度,来实施这个方法,并把该方法和记录操作者所有诱因和行为的基准办法相比较。结果显示,提出的方法可以使机器人准确揭示操作者习惯,并相应地调节环境状况。

关键词: 个性化机器人     习惯学习     行为足迹    

Controlling interstory drift ratio profiles via topology optimization strategies

《结构与土木工程前沿(英文)》 2023年 第17卷 第2期   页码 165-178 doi: 10.1007/s11709-022-0892-3

摘要: An approach to control the profiles of interstory drift ratios along the height of building structures via topology optimization is proposed herein. The theoretical foundation of the proposed approach involves solving a min–max optimization problem to suppress the maximum interstory drift ratio among all stories. Two formulations are suggested: one inherits the bound formulation and the other utilizes a p-norm function to aggregate all individual interstory drift ratios. The proposed methodology can shape the interstory drift ratio profiles into inverted triangular or quadratic patterns because it realizes profile control using a group of shape weight coefficients. The proposed formulations are validated via a series of numerical examples. The disparity between the two formulations is clear. The optimization results show the optimal structural features for controlling the interstory drift ratios under different requirements.

关键词: interstory drift ratio     aggregation function     bound formulation     min–max problem     topology optimization    

High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

《结构与土木工程前沿(英文)》 2019年 第13卷 第2期   页码 406-416 doi: 10.1007/s11709-018-0475-5

摘要: We approximate the fracture surface energy functional based on phase-field method with smooth local maximum entropy (LME) and second-order maximum entropy (SME) approximants. The higher-order continuity of the meshfree methods such as LME and SME approximants allows to directly solve the fourth-order phase-field equations without splitting the fourth-order differential equation into two second-order differential equations. We will first show that the crack surface functional can be captured more accurately in the fourth-order model with smooth approximants such as LME, SME and B-spline. Furthermore, smaller length scale parameter is needed for the fourth-order model to approximate the energy functional. We also study SME approximants and drive the formulations. The proposed meshfree fourth-order phase-field formulation show more stable results for SME compared to LME meshfree methods.

关键词: second-order maximum entropy     local maximum entropy     second- and fourth-order phase-field models     B-spline    

The MYC transcription factor network: balancing metabolism, proliferation and oncogenesis

null

《医学前沿(英文)》 2018年 第12卷 第4期   页码 412-425 doi: 10.1007/s11684-018-0650-z

摘要:

Transcription factor networks have evolved in order to control, coordinate, and separate, the functions of distinct network modules spatially and temporally. In this review we focus on the MYC network (also known as the MAX-MLX Network), a highly conserved super-family of related basic-helix-loop-helix-zipper (bHLHZ) proteins that functions to integrate extracellular and intracellular signals and modulate global gene expression. Importantly the MYC network has been shown to be deeply involved in a broad spectrum of human and other animal cancers. Here we summarize molecular and biological properties of the network modules with emphasis on functional interactions among network members. We suggest that these network interactions serve to modulate growth and metabolism at the transcriptional level in order to balance nutrient demand with supply, to maintain growth homeostasis, and to influence cell fate. Moreover, oncogenic activation of MYC and/or loss of a MYC antagonist, results in an imbalance in the activity of the network as a whole, leading to tumor initiation, progression and maintenance.

关键词: network     transcription     cancer     MYC     MAX     MLX    

Adaptive robust beamformer formulti-pair two-way relay networks with imperfect channel state information

Jin WANG,Feng SHU,Ri-qing CHEN,Yu-di CUI,Yu CHEN,Jun LI

《信息与电子工程前沿(英文)》 2016年 第17卷 第3期   页码 265-280 doi: 10.1631/FITEE.1500134

摘要: In wideband multi-pair two-way relay networks, the performance of beamforming at a relay station (RS) is intimately related to the accuracy of the channel state information (CSI) available. The accuracy of CSI is determined by Doppler spread, delay between beamforming and channel estimation, and density of pilot symbols, including transmit power of pilot symbols. The coefficient of the Gaussian-Markov CSI error model is modeled as a function of CSI delay, Doppler spread, and signal-to-noise ratio, and can be estimated in real time. In accordance with the real-time estimated coefficients of the error model, an adaptive robust maximum signal-to-interferenceand- noise ratio (Max-SINR) plus maximum signal-to-leakage-and-noise ratio (Max-SLNR) beamformer at an RS is proposed to track the variation of the CSI error. From simulation results and analysis, it is shown that: compared to existing non-adaptive beamformers, the proposed adaptive beamformer is more robust and performs much better in the sense of bit error rate (BER); with increase in the density of transmit pilot symbols, its BER and sum-rate performances tend to those of the beamformer of Max-SINR plus Max-SLNR with ideal CSI.

关键词: Multi-pair two-way relay     Adaptive robust beamformer     Channel state information (CSI)     Maximum signal-to-interference-and-noise ratio (Max-SINR)     Maximum signal-to-leakage-and-noise ratio (Max-SLNR)    

地基超光谱立体遥感网络——一种探究中国PM2.5和O3协同控制的新策略 Article

刘诚, 邢成志, 胡启后, 李启华, 刘浩然, 洪茜茜, 谈伟, 季祥光, 林华, 陆川, 林继楠, 刘瀚洋, 魏少聪, 陈健, 杨昆鹏, 王顺天, 柳婷, 陈羽佳

《工程(英文)》 2022年 第19卷 第12期   页码 71-83 doi: 10.1016/j.eng.2021.02.019

摘要: 2015 年以来,中国科学技术大学(USTC)基于多轴差分吸收光谱仪(MAX-DOAS)在全国范围内主导建立了地基超光谱遥感网络。基于搭设于四个特大城市(北京、上海、深圳和重庆)的四个MAX-DOAS 监测站获取的一年时间的气溶胶、NO2和HCHO的垂直廓线,探究京津冀(JJJ)、长三角(YRD)、珠三角(PRD此外,立体监测网络中的五个MAX-DOAS 站点[石家庄(SJZ)、望都(WD)、南城(NC)、中国气象科学研究院(CAMS)和中国科学院大学(UCAS)]同时监测到一次发生在华北平原(NCP)西南&mdash

关键词: 多轴差分吸收光谱仪     立体监测     区域传输     臭氧生成     控制策略    

标题 作者 时间 类型 操作

波音737 Max Saga——自动化缺陷

Chris Palmer

期刊论文

Genome-wide association study of the backfat thickness trait in two pig populations

Dandan ZHU,Xiaolei LIU,Rothschild MAX,Zhiwu ZHANG,Shuhong ZHAO,Bin FAN

期刊论文

Numerical analysis of strongly nonlinear oscillation systems using He’s max-min method

H. BABAZADEH, G. DOMAIRRY, A. BARARI, R. AZAMI, A. G. DAVODI

期刊论文

基于最大间隔的贝叶斯分类器

Tao-cheng HU,Jin-hui YU

期刊论文

通过行为足迹学习人类习惯的个性化服务机器人

李坤, Max Q.-H. Meng

期刊论文

Controlling interstory drift ratio profiles via topology optimization strategies

期刊论文

High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

期刊论文

The MYC transcription factor network: balancing metabolism, proliferation and oncogenesis

null

期刊论文

Adaptive robust beamformer formulti-pair two-way relay networks with imperfect channel state information

Jin WANG,Feng SHU,Ri-qing CHEN,Yu-di CUI,Yu CHEN,Jun LI

期刊论文

地基超光谱立体遥感网络——一种探究中国PM2.5和O3协同控制的新策略

刘诚, 邢成志, 胡启后, 李启华, 刘浩然, 洪茜茜, 谈伟, 季祥光, 林华, 陆川, 林继楠, 刘瀚洋, 魏少聪, 陈健, 杨昆鹏, 王顺天, 柳婷, 陈羽佳

期刊论文