饮水安全工程信息的元数据分级索引算法

J4 ›› 2014, Vol. 36 ›› Issue (11): 2223-2228.

饮水安全工程信息的元数据分级索引算法

胡薇，蔡朝晖，梁甜，涂国庆

（武汉大学计算机学院，湖北武汉 430072）

收稿日期:2014-06-05 修回日期:2014-08-21 出版日期:2014-11-25 发布日期:2014-11-25

A metadata classification indexing algorithm
for drinking water safety project information

HU Wei,CAI Zhaohui,LIANG Tian,TU Guoqing

(School of Computer,Wuhan University,Wuhan 430072,China)

Received:2014-06-05 Revised:2014-08-21 Online:2014-11-25 Published:2014-11-25

摘要/Abstract

摘要：

分析了当前饮水安全工程数据的发展趋势和主要类型，根据饮水安全工程数据的特点，提出了一种应用型的饮水安全核心元数据模型，设计了饮水安全工程核心元数据的结构和内容，将饮水安全工程核心元数据分为标识信息、数据质量信息、内容信息、空间参照系信息和分发信息五个部分，并且分别描述了五个部分的结构。同时，设计了符合饮水安全工程元数据的元数据分级算法，比较了元数据分级算法和目录子树分区算法以及哈希算法的实验结果。

关键词: 饮水安全工程, 分布式NameNode模型, 元数据分级算法

Abstract:

The current developmental trends and the main types of the drinking water safety project data are analyzed.Considering the characteristics of the drinking water safety project data,a core metadata model applied in the drinking water safety is proposed, and the structure and content of the core metadata of the drinking water safety project are designed.The core metadata of the drinking water safety project can be divided into five parts:identity information, data quality information, content information, space reference information and distribution information whose construction is described respectively. A metadata classification algorithm is designed, which conforms to the drinking water safety project data.The metadata classification indexing algorithm improves the management and work efficiency of rural drinking water safety compared with the subtree partitioning algorithm and the Hash algorithm.

Key words: drinking water safety project;distributed NameNode model;metadata classification algorithm

胡薇，蔡朝晖，梁甜，涂国庆. 饮水安全工程信息的元数据分级索引算法[J]. J4, 2014, 36(11): 2223-2228.

HU Wei,CAI Zhaohui,LIANG Tian,TU Guoqing. A metadata classification indexing algorithm
for drinking water safety project information [J]. J4, 2014, 36(11): 2223-2228.

参考文献［17］

［1］	Geng Qingzhai, Zhu Xingming. Research and construction of standard system of scientific data sharing of water resources［J］. Journal of Hydrolic Engineering, 2007, 38(2):233238.(in Chinese)
［2］	Guo Shiming, Jing Jipeng. The metadata function of network information resource organization and retrieval［J］. Information Science, 2004,22(12):14551457.(in Chinese)
［3］	Wang Guofu,Xu Feng,Wu Zengxiang.Technology research of meteorological metadata standard and information release［J］. Journal of Applied Meteorological Science, 2005,16(1):114121.(in Chinese)
［4］	TD/T 10162003,Core metadata standard for land and resources information［S］.Beijing:Ministry of Land and Resources of the People’s Republic of China,2003.(in Chinese)
［5］	Zhang Jihong, Chen Xiaoquan. Research of metadata management for largescale traffic security data［J］. Journal of Computer Research and Development,2011,48(1):7477.(in Chinese)
［6］	Meng Lingkui, Li Sanxia, Zhang Wen, et al. Research and application of hydrological core metadata model for hydrological data sharing［J］. Journal of China Hydrology, 2012, 32(1):15.(in Chinese)
［7］	Feng Jun, Tang Zhixian, Huang Ruchun, et al. Study on water conservancy information resources metadata management method［J］. Water Resource Informatioin, 2011(5):14.(in Chinese)
［8］	Guo Chunyi, Gang Qiang. Hydrological information sharing and its security analysis based on spatial data warehouse［J］. Jilin Water Resources, 2009（5）:3840.(in Chinese)
［9］	SL 473—2010, Core metadata of water resources information［S］. Beijing:Ministry of Water Resources of the People’s Republic of China, 2010.(in Chinese)
［10］	Yao Yanmin, Jiang Zuoqin, Yan Tailai. A study of core metadata for land and resource information［J］. Acta Geodaeticaet Cartographica Sinica, 2001, 30(4):349354.(in Chinese)
［11］	Gu Jirong, Miao Fang, Wang Chengshan. Research of metadata information sharing system［J］. Computing Techniques for Geophysical and Geochemical Exploration, 2006, 28(1):7579.(in Chinese)
［12］	Li Kuan. Research of the model of distributed NameNodes in HDFS［D］. Guangzhou:South China University of Technology, 2011.(in Chinese)
［13］	Morris J H, Satyanarayanan M, Conner M H, et al. Andrew:A distributed personal computing environment［J］. Communications of the ACM, 1986, 29(3):184201.
［14］	Satyanarayanan M, Kistler J J, Kumar P, et al. Coda:A highly available file system for a distributed workstation environment［J］. IEEE Transactions on Computers, 1990, 39(4):447459.
［15］	Weil S A, Pollack K T, Brandt S A, et al. Dynamic metadata management for petabytescale file systems［C］∥Proc of the 2004 ACM/IEEE Conference on Supercomputing, 2004:4.
［16］	Corbett P F, Feitelson D G. The Vesta parallel file system［J］. ACM Transactions on Computer Systems(TOCS), 1996, 14(3):225264.
［17］	Niu Dejiao, Cai Tao, Zhan Yongzhao, et al. Hierarchical metadata indexing algorithm of mass storage system［J］. Application Research of Computers, 2012, 29(2):510517.(in Chinese)
	附中文参考文献:
［1］	耿庆斋,朱星明.水利科学数据共享标准体系研究与构建［J］.水利学报,2007,38(2):233238.
［2］	过仕明,靖继鹏.元数据在网络信息资源组织与检索中的作用［J］.情报科学,2004,22(12):14551457.
［3］	王国复,徐枫,吴增祥.气象元数据标准与信息发布技术研究［J］.应用气象学报,2005,16(1):114121.
［4］	TD/T 10162003,国土资源信息核心元数据标准［S］.北京:中华人民共和国国土资源部,2003.
［5］	张继红,陈小全.海量交通安全数据的元数据管理研究［J］.计算机研究与发展,2011,48(1):7477.
［6］	孟令奎,李三霞,张文,等.面向水文数据共享的水文核心元数据模型研究及应用［J］.水文,2012,32(1):15.
［7］	冯钧,唐志贤,黄如春,等.水利信息资源元数据管理方法研究［J］.水利信息化,2011(5):14.
［8］	郭纯一, 冮强.基于空间数据仓库的水文信息共享及其安全性浅析［J］.吉林水利,2009(5):3840.
［9］	SL 473—2010,水利信息核心元数据［S］.北京:中华人民共和国水利部,2010.
［10］	姚艳敏,姜作琴,严泰来.国土资源信息核心元数据的研究［J］.测绘学报,2001, 30(4):349354.
［11］	辜寄蓉, 苗放, 王成善. 基于元数据的信息共享机制研究［J］. 物探化探计算技术, 2006, 28(1):7579.
［12］	李宽.基于HDFS的分布式NameNode节点模型的研究［D］.广州:华南理工大学,2011.
［17］	牛德姣,蔡涛,詹永照,等.海量存储系统中的元数据分级索引算法［J］.计算机应用研究,2012,29(2):510517.