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手机文字输入软件市场及发展

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通信世界 2000年第S1期 12-12页

作者： danny hu

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AntVis:A web-based visual analytics tool for exploring ant movement data

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Visual Informatics 2020年第1期4卷 58-70页

作者： Tianxiao hu Hao Zheng Chen Liang Sirou Zhu Natalie Imirzian Yizhe Zhang Chaoli Wang David P.hughes danny Z.Chen Facebook Inc.Menlo ParkCA 94025United States University of Notre Dame Notre DameIN 46556United States Carnegie Mellon University PittsburghPA 15213United States Pennsylvania State University University ParkPA 16802United States

We present AntVis,a web-based visual analytics tool for exploring ant movement data collected from the video recording of ants moving on tree *** goal is to enable domain experts to visually explore massive ant movement data and gain valuable insights via effective visualization,filtering,and *** is achieved through a deep learning framework for automatic detection,segmentation,and labeling of ants,ant movement clustering based on their trace similarity,and the design and development of five coordinated views(the movement,similarity,timeline,statistical,and attribute views)for user interaction and *** demonstrate the effectiveness of AntVis with several case studies developed in close collaboration with domain ***,we report the expert evaluation conducted by an entomologist and point out future directions of this study.

关键词： Ant movement Object detection Image segmentation Visual analytics Knowledge discovery

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Reduced Macular Vascular Density in Myopic Eyes

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Chinese Medical Journal 2017年第4期130卷 445-451页

作者： hua Fan Hao-Yu Chen Hong-Jie Ma Zheng Chang Hai-Quan Yin danny Siu-Chun Ng Carol Y Cheung Shan hu Xiang Xiang Shi-Bo Tang Shuang-Nong Li Aier School of Ophthalmology Central South University Changsha Hunan 410015 China Joint Shantou International Eye Center Shantou Guangdong 515000 China Shenzhen Aier Eye Hospital Shenzhen Guangdong 518000 China Department of Ophthalmology and Visual Sciences The Chinese University of Hong Kong Hong Kong 999077 China

Background： Morphological changes of the vasculature system in patients with myopia have been observed by Doppler ultrasound and fundus fluorescein angiography （FFA）; however, these studies have limitations. Doppler ultrasound provides low-resolution images which are mainly obtained from visualized large vessels, and FFA is an invasive examination. Optic coherence tomography （OCT） angiography is a noninvasive, high-resolution measurement for vascular density. The purpose of this study was to investigate the change of vascular density in myopic eyes using OCT angiography. Methods： This cross-sectional study includes a total of 91 eyes ~Yom 47 participants including control, moderate, and high myopia that were evaluated by OCT angiography. Patients with myopia were recruited from the Refractive Department, Shenzhen Aier Eye Hospital, from August 5, 2015 to April 1, 2016. Emmetropic eyes were from healthy volunteers. The vascular density at macula and optic disc regions, ganglion cell complex （GCC） thickness, and retinal nerve fiber layer （RNFL） thickness were measured. Their relationships with axial length （AL） and refractive error were analyzed. One-way analysis of variance （ANOVA）, Pearson＇s correlation, and generalized estimating equation were used for statistical analysis, Results： Both superficial and deep macular vascular density were highest in control （25.64% ± 3.76% and 37.12% ± 3.66%, respectively）, then in moderate myopia （21.15% ± 5.33% and 35.35% ± 5.50%, respectively）, and lowest in high myopia group （ 19.64% ± 3.87% and 32.81% ± 6.29%, respectively）（F =13.74 and 4.57, respectively; both P 〈 0.001）. Both superficial （β = -0.850 and 0.460, respectively） and deep （β = -0.766 and 0.396, respectively） macular vascular density were associated with AL and spherical equivalent （all P 〈 0.001 ）. Superficial macular vascular density was associated with GCC thickness （β = 0.244, P = 0.040）, independent of spherical equivalent. The vascular density in optic disc r

关键词： Myopia Optic Coherence Tomography Angiography Vascular Density

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