Enhanced Pattern Representation in Information Extraction

Traditional pattern representation in information extraction lack in the ability of representing domainspecific concepts and are therefore devoid of flexibility. To overcome these restrictions, an enhanced pattern representation is designed which includes ontological concepts, neighboring-tree structures and soft constraints. An information-extraction inference engine based on hypothesis-generation and conflict-resolution is implemented.The proposed technique is successfully applied to an information extraction system for Chinese-language query front-end of a job-recruitment search engine.     

常州市既有建筑节能改造示范城市技术效益分析

文章在对常州市既有建筑节能改造示范城市实施情况进行了阐述,同时,针对20个示范项目分别从技术角度、节能效益、环境效益等进行了分析,并在此基础上,得出了不同建筑类型适宜的改造技术,为既有建筑节能改造的应用提供参考借鉴。     

集中式太阳能热水系统运行策略研究

以典型集中热水供应系统为例,分析计算了单、双水箱模式下,集中式太阳能循环热水供应系统的补热量,并分析了水箱最低水位与集热模式对补热量的影响。结果表明,对于连续供水系统,应采用双水箱结构,水箱补水最低水位存在最佳值,应合理设置。