Internet上多来源MSDS的统一检索方法

发布时间：2018-10-19 10:56

【摘要】：国际上称之为材料安全数据表的MSDS是一份关于化合物安全信息的综合性法律文件。随着人们安全意识的提高以及对职业健康、环境保护等认识的不断深入,MSDS作为一个安全信息文件越来越受重视。由于制作MSDS需要一定的成本,充分利用网络上免费的MSDS数据对于了解化合物的安全信息具有重要的参考价值。已有针对MSDS的搜索工具,一般只能检索单一来源的MSDS数据库,所以建立一个能通过一个查询同时检索多个来源数据库的MSDS搜索引擎,将为使用MSDS的人员提供极大方便。本文提出建立MSDS统一搜索引擎的框架,通过链接分析技术和深层网数据检索技术获取MSDS文件,然后缓存各数据源检索结果,并建立化合物索引以提高MSDS搜索引擎的响应速度。其实现过程包括发现与自动构造检索式模式、自动获取检索结果页面、利用数据提取的方法获取化合物标识信息以建立MSDS的化合物索引等多个方面,为建立一个可用的MSDS统一搜索引擎奠定坚实基础。
[Abstract]:MSDS is a comprehensive legal document about compound safety information. With the improvement of people's safety consciousness and the deepening understanding of occupational health and environmental protection, MSDS is paid more and more attention as a safety information document. Because the production of MSDS requires a certain cost, it is important to make full use of the free MSDS data on the network to understand the security information of compounds. There is a search tool for MSDS, which can only retrieve MSDS database from a single source. Therefore, it will be convenient for people who use MSDS to build a MSDS search engine that can retrieve multiple source databases simultaneously through a single query. In this paper, the framework of MSDS unified search engine is proposed. The MSDS files are obtained by link analysis and deep web data retrieval techniques, and the retrieval results of various data sources are cached, and compound indexes are built to improve the response speed of MSDS search engines. The realization process includes discovering and automatically constructing retrieval pattern, retrieving result pages automatically, obtaining compound identification information by using data extraction method to establish compound index of MSDS, and so on. For the establishment of a usable MSDS unified search engine to lay a solid foundation.
【作者单位】：中国科学院过程工程研究所多相复杂系统国家重点实验室;中国科学院研究生院;
【基金】：国家自然科学基金资助项目(90612015,20673119,20221603)
【分类号】：TP391.3

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