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Search Results: 1 - 10 of 420429 matches for " <br>黄永文 "
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Multiple Data Sources Integration and Retrieval System Based on Database Federation
基于数据库联邦方式的多数据源集成检索系统

Huang Yongwen,<br>
现代图书情报技术 , 2005,
Abstract: The paper introduces the background and implement ways of multiple data sources integration and retrieval system, then analyzes the architecture and heterogeneity of multiple data sources integration and retrieval systems based on database federation, and discusses several multiple data sources integration and retrieval systems based on Database Federation abroad.
Research on Linked Data-driven Library Applications
关联数据在图书馆中的应用研究综述*

Huang Yongwen,<br>
现代图书情报技术 , 2010,
Abstract: The paper introduces the background, the definition and basic principle of linked data, analyzes linked data-driven Web application components, and presents the types of linked data-driven applications on library such as resource discovery service, data fusion and semantic search service, research and scholarship, open data and reuse etc. Finally, it proposes some suggestions for building linked data applications in library.
Review on the Application Reasearch of ETL in Digital Library
数字图书馆中的ETL应用研究综述

Huang YongwenLi Guangjian,<br>,李广建
现代图书情报技术 , 2007,
Abstract: The paper introduces some researches on ETL application in digital libraries,and analyzes classification and application field of ETL in resources construction,user service,resources sharing,system interoperability of digital libraries.
Design and Implement of Full-Text Retrieval System Based on WWW
基于WWW的全文检索系统设计与实现

Li Guangjian Huang Yongwen,<br>李广建,
现代图书情报技术 , 2000,
Abstract: After discussing the definition, characteristics, development and current condition of the full-text retrieval system, the article introduces the general situation of “Educational Information Full-Text RetrievaI System Based on WWW”, and then analyzes the key components with which the system is implemented.
PREPARATION OF MONODISPERSE POLY(DIVINYLBENZENE-co-ACRYLONITRILE) MICROSPHERES BY DISTILLATION PRECIPITATION POLYMERIZATION
蒸馏沉淀聚合法制备窄分散聚二乙烯基苯-co-丙烯腈功能聚合物微球

LU Xianyong,HUANG Da,YANG Xinlin,HUANG Wenqiang,<br>鹿现,,杨新林,
高分子学报 , 2007,
Abstract: 采用蒸馏沉淀聚合法,利用过氧化苯甲酰(BPO)为引发剂,在不加任何稳定剂和不搅拌的情况下,丙烯腈(AN)和二乙烯基苯(DVB)为共聚单体制备了不同交联度的微米和亚微米窄分散聚合物微球,考查了共聚单体对球体的影响,并用扫描电镜(SEM)和红外光谱对微球进行了表征.
Dynamic of native ants on the lawn with the invasion of Solenopsis invicta Buren
红火蚁入侵草坪过程中蚂蚁类群变动趋势

xuyijuan,<br>宋侦东,,许益镌,,梁广,曾玲
生态学报 , 2010,
Abstract: After the red imported fire ant (RIFA), Solenopsis invicta Buren was introduced to the lawn, it could settle down and enlarge its population in a short time. RIFA could change the structure of ant community in this invasion area. Through the analyses of predominant ant species in every different invasion periods, the predominant ant species in treatment was different from that in CK. RIFA could substitute for former predominant ant species after its invasion, and had an absolute predominance in population. The results showed that when RIFA invaded the lawn, the ant community diversity index and evenness index declined, and the predominance index in this area was rising. Ant community similarities in each treatment were compared, and it was found that in the area where RIFA slightly invaded and the CK, the comparability coefficient (q) was between 0.25 to 0.50, which was not similar. The comparability coefficient (q) for the area with moderate RIFA and the CK, was between 0.075 and 0.444, which was a middling dissimilar or extraordinarily dissimilar; And that for the area which serously invaded and CK, the comparability coefficient (q) was between 0.0 to 0222, which was extraordinarily dissimilar. It was showed that different endangered districts had different effects on the native ant community. The bigger the population of RIFA was, the greater effect on native ant community it had, and the less time it took for the RIFA to substitute for native ant species.
Automatic acquisition of customer reviews
用户评论的分类获取

HUANG Yong-wen,HE Zhong-shi,WU Xing,<br>,何中市,伍星
计算机应用 , 2009,
Abstract: In this article, the authors labeled the consumer reviews got from the Web, and extracted the features of customer reviews content, selected the features of different reviews with CHI approach. Support Vector Machine (SVM) was used to get the classification, then to classify the updated consumer reviews and mine the useful reviews. The experiment shows that this way has high recall and precision.
A Web Site Representation and Mining Algorithm Using the Multiscale Tree Model
基于多粒度树模型的Web站点描述及挖掘算法

TIAN Yong-Hong,HUANG Tie-Jun,GAO Wen,<br>田鸿,铁军,
软件学报 , 2004,
Abstract: With the exponential growth of both the amount and the diversity of the web information, web site mining is highly desirable for automatically discovering and classifying topic-specific web resources from the World Wide Web. Nevertheless, existing web site mining methods have not yet handled adequately how to make use of all the correlative contextual semantic clues and how to denoise the content of web sites effectually so as to obtain a better classification accuracy. This paper circumstantiates three issues to be solved for designing an effective and efficient web site mining algorithm, i.e., the sampling size, the analysis granularity, and the representation structure of web sites. On the basis, this paper proposes a novel multiscale tree representation model of web sites, and presents a multiscale web site mining approach that contains an HMT-based two-phase classification algorithm, a context-based interscale fusion algorithm, a two-stage text-based denoising procedure, and an entropy-base pruning strategy. The proposed model and algorithms may be used as a starting-point for further investigating some related issues of web sites, such as query optimization of multiple sites and web usage mining. Experiments also show that the approach achieves in average 16% improvement in classification accuracy and 34.5% reduction in processing time over the baseline system.
F2RL3影响肾癌A498细胞增殖、侵袭、转移及糖酵解效应
The influence of F2RL3 on the proliferation, invasion, metastasis and glycolysis of renal cancer A498 cells

曹达龙,,,等<br>CAO Dalong, ZHU Wenkai, HUANG Yongqiang, et al
- , 2018, DOI: 10.19401/j.cnki.1007-3639.2018.12.003
Abstract: 背景与目的:F2R样凝血酶/胰蛋白酶受体3(F2R like thrombin or trypsin receptor 3,F2RL3)高表达与肾癌的不良预后密切相关,但其在肾癌发生、发展中的功能未见报道。本研究旨在探讨F2RL3与肾癌A498细胞恶性增殖、侵袭、转移和糖代谢的关系。方法:通过敲减肾癌A498细胞中F2RL3基因表达,检测细胞恶性增殖、侵袭、转移和吸收葡萄糖、产生乳酸能力的变化以及糖酵解通路中关键基因的表达。结果:F2RL3低表达可以抑制A498细胞的增殖、侵袭及转移能力,以及抑制葡萄糖的吸收和乳酸的生成,结果差异有统计学意义(P<0.05)。结论:肾癌A498细胞中F2RL3可以正向调控细胞的增殖、侵袭、转移以及糖酵解效应。这些结果为研究肾癌细胞侵袭、转移与糖代谢之间的关系提供了重要的理论依据。
关联数据在图书馆中的应用研究综述*

现代图书情报技术 , 2010,
Abstract: ?简要介绍关联数据产生和发展的背景、关联数据的定义、基本原则及应用框架,从资源发现服务、数据融合与语义检索服务、学术研究和学术交流作用、跨机构的关联数据的开放与复用等方面分析关联数据驱动的图书馆web应用现状,最后对图书馆应用关联数据提出几点建议。
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