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对语法开发平台中算法性很强的功能模块进行了算法剖析,包括句法结构线性表达的分析算法,规则与词典的提取算法,成分结构树图与功能结构集图的生成算法,成分结构与功能结构的转换算法.最后对系统作了简单的功能测试. 相似文献
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从信息构建看未来的知识管理 总被引:4,自引:0,他引:4
本文从信息构建出发 ,进而引申到知识管理与知识推理 ,最终提出了知识基础工程。在设计并实现自然语言的语法开发平台时 ,产生了构建知识库的设想。利用语法开发平台 ,就可以对自然语言的语法进行开发 ,加上一个好的算法 ,就可以对大规模文本进行自动分析。对分析过的句子进行内容提取 ,并用面向对象方法和逻辑形式进行格式化 ,得到以面向对象为特征的常识知识库和以逻辑命题为特征的专家知识库 ,这应该是知识发现、知识管理的最高层次 ,也是知识工程的核心 相似文献
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Research‐practice partnerships offer counselor educators an opportunity to generate scholarship that can promote client welfare and create systemic change in practice and policy. The purpose of this article is to articulate strategies for building and sustaining research‐practice partnerships, as well as suggest methods for evaluating these partnerships. 相似文献
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基于句子匹配的文章自写度测评系统 总被引:1,自引:0,他引:1
化柏林 《现代图书情报技术》2007,2(11):40-44
针对人工进行不同文章中相同内容的判断存在着较大困难的局面,提出一个基于句子匹配的文章自写度测评系统。设计基于句子匹配的文章自写度测评系统的系统结构,论述句子分析器、句子匹配器与文章自写度评价器3个关键模块的详细流程,并设计相应算法。选取小规模数据进行实验,实验结果表明,基于句子匹配的文章自写度测评系统从技术上完全可行。最后分析基于句子匹配的文章自写度测评系统的难点及问题。 相似文献
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为了解常用化学消毒剂对青霉菌的消毒效果,测定了来苏儿、碘酊、84消毒液、新洁尔灭、双氧水、甲醇、高锰酸钾、硫柳汞、甲醛、氢氧化钠、苯酚和五水硫酸铜对青霉菌的杀灭效果,用显微镜观察了碘酊和甲醇对青霉菌形态的影响.结果表明:五水硫酸铜、苯酚、碘酊、来苏儿、84消毒液等对青霉菌的消毒效果较好,抑制了青霉菌菌丝的形成.研究为临床上预防青霉菌感染打下了基础. 相似文献
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WSN网络负载具有周期性和突发性,SMAC协议因固定占空比导致网络时延和能量浪费严重.为此,建立时延和能耗模型,提出从传感器节点缓存区队列长度和其增长速率与信道带宽比值两方面判断网络负载情况,据此动态调整SMAC中的占空比,并改进SYNC帧格式和同步分组广播方法.通过NS2仿真实验表明:相对原SMAC协议,改进的协议网络时延更平稳、时延更小,特别在网络负载较重时时延小得多;在能量效率方面,单位焦耳能量能传送的数据量比SMAC多28%. 相似文献
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Ke Li Yingfeng Li Xinyu Wang Mengkui Cui Bolin An Jiahua Pu Jintao Liu Boyang Zhang Guijun Ma Chao Zhong 《国家科学评论(英文版)》2021,8(8)
Marine diatoms construct their hierarchically ordered, three-dimensional (3D) external structures called frustules through precise biomineralization processes. Recapitulating the remarkable architectures and functions of diatom frustules in artificial materials is a major challenge that has important technological implications for hierarchically ordered composites. Here, we report the construction of highly ordered, mineralized composites based on fabrication of complex self-supporting porous structures—made of genetically engineered amyloid fusion proteins and the natural polysaccharide chitin—and performing in situ multiscale protein-mediated mineralization with diverse inorganic materials, including SiO2, TiO2 and Ga2O3. Subsequently, using sugar cubes as templates, we demonstrate that 3D fabricated porous structures can become colonized by engineered bacteria and can be functionalized with highly photoreactive minerals, thereby enabling co-localization of the photocatalytic units with a bacteria-based hydrogenase reaction for a successful semi-solid artificial photosynthesis system for hydrogen evolution. Our study thus highlights the power of coupling genetically engineered proteins and polysaccharides with biofabrication techniques to generate hierarchically organized mineralized porous structures inspired by nature. 相似文献