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江苏省同位素地质年龄数据库建设
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作者 赵立鸿 程春梅 《江苏国土资源》 2003年第8期26-28,共3页
系统介绍了江苏省同位素地质年龄数据库的建库工作及取得的主要成果,并针对同位素地质年龄数据库、工作指南和同位素地质测年工作等方面存在的问题提出了对策和建议.
关键词 江苏 同位素地质年龄数据库 地质测年 数据采集标准化
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人脸表观年龄估计综述
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作者 杜希婷 《信息与电脑》 2020年第22期52-54,共3页
近年来,人脸表观年龄估计引起了越来越多的关注.基于此,本文对近年来表观年龄估计的相关研究发展状况进行了综述,包括基于传统算法和基于深度学习算法两方面,然后对常用的数据库和性能评价指标进行了总结,最后对基于人脸图像的表观年龄... 近年来,人脸表观年龄估计引起了越来越多的关注.基于此,本文对近年来表观年龄估计的相关研究发展状况进行了综述,包括基于传统算法和基于深度学习算法两方面,然后对常用的数据库和性能评价指标进行了总结,最后对基于人脸图像的表观年龄估计所面临的挑战和未来的发展方向进行了讨论. 展开更多
关键词 人脸衰老 深度学习 表观年龄估计 年龄数据库
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基于卷积神经网络的跨年龄人脸识别系统研究 被引量:5
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作者 李帅 席志红 《无线电工程》 2019年第7期557-563,共7页
对年龄跨度具有鲁棒性的人脸识别系统在实际中具有广泛的应用,年龄的变化对人脸面部特征具有显著的影响,会导致人脸识别的准确率下降。提出一种基于卷积神经网络的跨年龄人脸识别系统,包含人脸检测、人脸预处理、卷积神经网络提取特征... 对年龄跨度具有鲁棒性的人脸识别系统在实际中具有广泛的应用,年龄的变化对人脸面部特征具有显著的影响,会导致人脸识别的准确率下降。提出一种基于卷积神经网络的跨年龄人脸识别系统,包含人脸检测、人脸预处理、卷积神经网络提取特征、期望最大化(EM)算法和余弦距离等部分。采用EM算法计算出身份特征,使得人脸识别系统对年龄变化具有鲁棒性。在MORPH-II和FG-NET跨年龄数据库中进行仿真实验,验证了人脸识别系统的有效性。 展开更多
关键词 人脸识别系统 深度卷积神经网络 年龄人脸数据库 CMC曲线
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The pooled analysis of single gemcitabine for non-small cell lung cancer patients with elderly age 被引量:1
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作者 Fang Wang Liangping Xia +3 位作者 Guifang Guo Huijuan Qiu Feifei Zhou Wenzhuo He 《The Chinese-German Journal of Clinical Oncology》 CAS 2010年第12期683-687,共5页
Objective:Gemcitabine,used as single agent for elderly patients with non-small cell lung cancer (NSCLC),was demonstrated effective in this population based on phase II studies.The aim of this study was to summarize al... Objective:Gemcitabine,used as single agent for elderly patients with non-small cell lung cancer (NSCLC),was demonstrated effective in this population based on phase II studies.The aim of this study was to summarize all those phase II studies with the hope to get a comprehensive understanding of gemcitabine efficacy.Methods:The PubMed database was used to search all the papers on NSCLC associated with gemcitabine used as single agent in the first line setting till to March 31st,2010.And the medians and their 95% CI of overall response rate (ORR),disease control rate (DCR),progression free survival (PFS),and overall survival (OS) were calculated.Results:1.There were 7 papers including 410 patients with performance status (PS) ≤ 2 and advanced stage collected.2.The dose-intensities of gemcitabine were 843.75 mg/m 2 /week-1125 mg/m 2 /week in the 4-week schedule,and 666.7 mg/m 2 /week in the 3-week schedule.3.The median age was 73.8 (95% CI was 72.44,75.16) years old;36.1% (95% CI:31.4%,40.7%) of patients with stage IIIB and 60.5% (95% CI:55.8%,65.2%) of patients with stage IV;35.9% (95% CI:31.2%,40.5%) patients were adenocarcinomas and 43.7% (95% CI:38.9%,48.5%) patients were squamous cell carcinomas (SCCs).4.The ORR,DCR,PFS/TTP,and OS were 22.3% (95% CI:18.2%,26.5%),58.4% (95% CI:53.5%,63.4%),3.6 (95% CI:2.9,5.15) months and 6.68 (95% CI:5.4,8.11) months,respectively.Conclusion:Gemcitabine as single agent applied in this special population was effective and can be well tolerated under different doses and usage. 展开更多
关键词 ELDERLY non-small cell lung cancer (NSCLC) pooled-analysis GEMCITABINE first line setting
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Analysis of cancer incidence and mortality in 2010 to the residents of Hai’an county, Jiangsu Province, China
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作者 Xiaojian Wang Haifeng Liu +2 位作者 Jinlian Wei Lin Li Xiaobin Cao 《The Chinese-German Journal of Clinical Oncology》 CAS 2013年第1期1-5,共5页
Objective: The aim of the study was to analyze the incidence, mortality and their impact factors and changing trends of malignant tumors in 2010 in the residents of Hai’an county, Jiangsu Province, China. Methods: Us... Objective: The aim of the study was to analyze the incidence, mortality and their impact factors and changing trends of malignant tumors in 2010 in the residents of Hai’an county, Jiangsu Province, China. Methods: Using the information of incidence, death registration information database and population data of malignant tumors in 2010 in the residents of Hai’an county, the incidence, mortality, accumulation incidence rates, and truncated incidence rate of malignant tumors were statistically analyzed. Results: The crude incidence, China standardized and world standardized incidence rates of malignant tumors in 2010 in Hai’an county were 281.53 per 100000 persons, 174.96 per 100 000 persons, and 175.14 per 100000 persons, respectively. The cumulative incidence rate from aged 0 to 64 years, the cumulative incidence rate from aged 0 to 74 years and the truncated incidence rate from aged 35 to 64 years were 6.85%, 15.39%, and 193.26 per 100000 persons, respectively. The rough mortality rate, China standardized and world standardized incidence rates were 234.11 per 100000 persons, 145.30 per 100000 persons, and 144.77 per 100000 persons, respectively. The top five cancers in the spectrum of cancer incidence were respectively esophageal cancer, lung cancer, stomach cancer, liver cancer, and colorectal cancer. The top four cancers in the spectrum of cancer death were consistent with the spectrum of cancer incidence. The 5th cancer in the spectrum of cancer death was pancreatic cancer. The incidence and mortality of various age groups were at a low level before 35-year-old age group. The incidence of female was slightly higher than that of male. But the incidence and mortality from the age group of 50 showed "suddenly" upward trend with age. The incidence and mortality of male were significantly higher than those of female. The ratios of male to female of incidence and mortality were 1.52:1 and 1.67:1, respectively. Conclusion: Residents over the age of 50, especially males, are high-risk groups who are exposed to certain risk factors. They should be the key objects of prevention and treatment of malignant tumors. 展开更多
关键词 malignant tumor INCIDENCE MORTALITY cancer registration
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人脸图像的年龄估计技术研究 被引量:33
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作者 王先梅 梁玲燕 +1 位作者 王志良 胡四泉 《中国图象图形学报》 CSCD 北大核心 2012年第6期603-618,共16页
年龄信息作为人体的一种重要生物特征,在安全监控、人机交互、视频检索等领域有着巨大的应用潜力,并且是人脸识别技术的主要瓶颈问题之一。基于人脸图像的年龄估计技术作为一种新兴的生物特征识别技术,目前已经成为计算机视觉、人机交... 年龄信息作为人体的一种重要生物特征,在安全监控、人机交互、视频检索等领域有着巨大的应用潜力,并且是人脸识别技术的主要瓶颈问题之一。基于人脸图像的年龄估计技术作为一种新兴的生物特征识别技术,目前已经成为计算机视觉、人机交互等领域的一个重要研究课题。为此对国内外近几年来在年龄估计技术方面的发展情况进行了综述,主要包括年龄特征提取与年龄分类模式两大部分。同时对常用的年龄数据库、性能评价指标进行了总结,并在此基础上对当前的一些年龄估计系统的性能进行了对比。最后,对基于人脸图像的年龄估计技术所面临的挑战以及可能的发展方向进行了讨论。 展开更多
关键词 人脸衰老 年龄估计 年龄特征提取 年龄分类模式 年龄数据库
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