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10篇 您的检索式:作者名="CHENG Irene"
    题名 作者 年代 出处 被引量
1Graph Regularized L_p Smooth Non-negative Matrix Factorization for Data Representation显示文摘This paper proposes a Graph regularized Lpsmooth non-negative matrix factorization(GSNMF) method by incorporating graph regularization and L_p smoothing constraint, which considers the intrinsic geometric information of a data set and produces smooth and stable solutions. The main contributions are as follows: first, graph regularization is added into NMF to discover the hidden semantics and simultaneously respect the intrinsic geometric structure information of a data set. Second,the Lpsmoothing constraint is incorporated into NMF to combine the merits of isotropic(L_2-norm) and anisotropic(L_1-norm)diffusion smoothing, and produces a smooth and more accurate solution to the optimization problem. Finally, the update rules and proof of convergence of GSNMF are given. Experiments on several data sets show that the proposed method outperforms related state-of-the-art methods.Chengcai Leng Hai Zhang Guorong Cai Irene Cheng Anup Basu 2019IEEE/CAA Journal of Automatica Sinica2019,6,2:9
2Novel coarse-to- fine dual scale technique for tuberculosis cavity detection in chest radiographs 显示文摘Tao Xu Irene Cheng Richard Long 2013EURASIP Journal on Image and Video Pro- cessing2013,3,:1
3Spatiotemporal trends of PM_(2.5) and its major chemical components at urban sites in Canada显示文摘To evaluate the effectiveness of emission control regulations designed for reducing air pollution, chemically resolved PM_(2.5) data have been collected across Canada through the National Air Pollution Surveillance network in the past decade. 24-hr time integrated PM_(2.5) collected at seven urban and two rural sites during 2010-2016 were analyzed to characterize geographical and seasonal patterns and associated potential causes. Site-specific seven-year mean gravimetric PM_(2.5) mass concentrations ranged from 5.7 to 9.6 μg/m^(3). Seven-year mean concentrations of SO_(4)^(2-), NO_(3)^(-), NH_(4)^(+), organic carbon(OC), and elemental carbon(EC) were in the range of 0.68 to 1.6, 0.21 to 1.5, 0.27 to 0.71, 1.1 to 1.9, and 0.37 to 0.71 μg/m^(3), accounting for 10.8%-18.1%, 3.7%-16.7%, 4.7%-7.4%, 18.4%-21.0%, and 6.4%-10.6%, respectively, of gravimetric PM_(2.5) mass. PM_(2.5) and its five major chemical components showed higher concentrations in southeastern Canada and lower values in Atlantic Canada, with the seven-year mean ratios between the two regions being on the order of 1.7 for PM_(2.5) and 1.8-7.1 for its chemical components. When comparing the concentrations between urban and rural sites within the same region, those of SO_(4)^(2-) and NH_(4)^(+) were comparable, while those of NO_(3)^(-), OC, and EC were around 20%, 40%-50%, and 70%-80%, respectively, higher at urban than rural sites, indicating the regional scale impacts of SO_(4)^(2-) and NH_(4)^(+) and effects of local sources on OC and EC. Monthly variations generally showed summertime peaks for SO_(4)^(2-) and wintertime peaks for NO_(3)^(-), but those of NH_(4)^(+), OC, and EC exhibited different seasonality at different locations.Huanbo Wang Leiming Zhang Irene Cheng Xiaohong Yao Ewa Dabek-Zlotorzynska 2021Journal of Environmental Sciences2021,33,5:1
4The Significance of Acute Phase Small-for-Size Graft Injury on Tumor Growth and Invasiveness After Liver Transplantation显示文摘Kwan Man Chung Mau Lo Jiang Wei Xiao Kevin T. Ng Bai Shun Sun Irene O. Ng Qiao Cheng Chris K. Sun Sheung Tat Fan 2008Annals of Surgery2008,,6:1
5The Significance of Acute Phase Small-for-Size Graft Injury on Tumor Growth and Invasiveness After Liver Transplantation显示文摘Kwan Man Chung Mau Lo Jiang Wei Xiao Kevin T. Ng Bai Shun Sun Irene O. Ng Qiao Cheng Chris K. Sun Sheung Tat Fan 2008Annals of Surgery2008,,6:1
6Fluid vector flow and applications in brain tumor segmentation显示文摘WANG Tao CHENG Irene Basu A 2009IEEE Trans- actions on Biomedical Engineering2009,56,3:1
7Interferon modulation of cellular microRNAs as an anti viral mechanism 显示文摘IRENE M P CHENG G F WIELAND S 2007Nature2007,449,:1
8转移过程对CVD生长的石墨烯质量的影响显示文摘利用化学气象沉淀法(CVD)在金属衬底上生长的石墨烯制备电子器件需要先把石墨烯转移到绝缘基底上,转移过程对器件制备的成功率和性能的均匀性有重要影响.转移过程中导致的石墨烯破损和金属生长基底残余颗粒污染受到普遍重视,然而由金属基底腐蚀液导致的石墨烯表面污染还没有引起足够的重视.本文利用拉曼光谱和X射线光电子能谱(XPS)证明了转移过程中金属基底腐蚀液会在石墨烯表面引入污染,利用我们发展的'改良的RCA(radio corporation of America)清洗(modified RCA clean)'转移工艺能够有效地去除这种污染.这对提高后续制备的电子器件的性能有重要意义.梁学磊 李伟 CHENG GuangJun CALIZO Irene HACKER Christina A HIGHT WALKER Angela R RICHTER Curt A 彭练矛 2014科学通报2014,59,33:0
9798工厂显示文摘近年来,一个新兴的艺术社区正逐渐在北京市东北面的一片综合工业区域内活跃起来,特别是在建造于20世纪50年代的原798工厂的老厂房设施内相继出现了许多艺术工作室、loft、画廊和书店。在新世纪之初,有开发商开始计划将整个798工厂和周边地区推倒并打造约100万平方米的新居民楼。这个计划严重威胁到了已有艺术社区的存在。bernard tschumi irene cheng adam dayem matthew hufft adam marcus shai gross yang yang 2016城市环境设计2016,0,1:0
10辛辛那提大学理查德·E·林德纳体育中心显示文摘辛辛那提大学在2001年委托伯纳德·屈米为该校运动员设计一座约22000m2的活动中心,为体育训练、管理、运动医疗和一些教学活动提供集中式的设施。学校统筹部门提出在保留所征用地块原有功能的前提下,项目可以选址在学校体育园区内任何地方。bernard tschumi kim starr phu hoang robert holton jane kim jonathan chace nicholas martin eva sopeoglou joel aviles chong-zi cheng irene cheng adam dayem william feuerman thomas goodwill daniel holguin matthew hufft michaela metcalf valentin bontjes van beek allis chee justin moore 2016城市环境设计2016,0,1:0
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