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基于分组指纹的细粒度相似性检测系统
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作者 盛鑫海 袁鑫攀 +1 位作者 满君丰 涂慧 《湖南工业大学学报》 2014年第6期81-85,共5页
在文档相似性检测中,粗粒度会降低准确度,粒度过细又会大幅增加计算时间。针对基金项目相似性检测,在b位Minwise Hash算法的基础上,提出了一种细粒度文档相似性快速检测方法。先对文档进行预处理,提取文档正文,并生成分组指纹特征,再构... 在文档相似性检测中,粗粒度会降低准确度,粒度过细又会大幅增加计算时间。针对基金项目相似性检测,在b位Minwise Hash算法的基础上,提出了一种细粒度文档相似性快速检测方法。先对文档进行预处理,提取文档正文,并生成分组指纹特征,再构建细粒度的分组指纹索引结构,利用海明距离来计算文档之间的相似性,以XML文档形式存储并显示相似信息。通过系统的实现,验证了该方法的有效性,且检索效率有所提高。 展开更多
关键词 分组指纹 细粒度 文档相似性检测 海明距离
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Murine brain tissues with human cytomegalovirus infection: a proteomic study
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作者 Xie Ni Yuan Jianhui +1 位作者 Cai Yinsha Liu Jianjun 《Journal of Medical Colleges of PLA(China)》 CAS 2010年第2期65-74,共10页
To establish two-dimensional electrophoresis profiles with high resolution and reproducibility from murine brain tissues by human cytomegalovirus(HCMV) infection and paired murine brain tissues and to identify the d... To establish two-dimensional electrophoresis profiles with high resolution and reproducibility from murine brain tissues by human cytomegalovirus(HCMV) infection and paired murine brain tissues and to identify the differential expression proteins. Methods: Forty Kunming mice were randomly divided into infection group (20) injected with HCMVAD169 and control group (20) injected with saline into their brain. After 30 days, the murine brain tissues by HCMV infection and paired murine brain tissues were separated by two-dimensional gel electrophoresis(2-DE), analyzed by Image Master 2D software, and identified by peptide mass fingerprint(PMF) and database searching, and make Western blotting analyses the differential expression of individual proteins. Results: Well resolved, reproducible 2-D maps of the above tissues were obtained. Some of the different proteins identified by mass spectrometry(MS) were matched in the SWISS-2D PAGE database, Western blotting analyses were further carried out to verify the differential expression of individual proteins. Conclusion: These data will be valuable for studying the diagnosis of disease at an early stage, mechanisms of pathogenic and the key to the development of anti-HCMV medicine. 展开更多
关键词 Human cytomegalovirus INFECTION PROTEOMICS Differential expression
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