共查询到20条相似文献，搜索用时 125 毫秒
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针对目前竹藤领域数据格式多样、集成整合不足、检索效率低下等问题,将领域术语权重和概念查询扩展相结合,提出了适用于竹籐的领域语义信息检索模型,并对竹藤领域的语义信息检索系统的检索方式、框架结构进行研究,最终建立了竹藤领域语义信息检索系统。本研究内容可有效地解决竹藤信息资源利用的技术障碍,为竹藤的宏观深层次研究,提供新的技术支持和理论依据,为其他相关领域语义信息检索提供一种新方法和思路。 相似文献
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The scheme and practice for construct of intelligent agricultural information network are descibed . With Internet form, we set up the computer network of Intelligent Information Technology of Agriculture in Demonstration Section of Chongqing, discussed the design method of expert system in agriculture, and studied 5 expert systems based on vegetable growth, such as tomato and so on. Some software modules are studied, such as the soil information systems on the network, expert system in the vegetable plant diseases and insect pests diagnostician and network on line selling and so on. The structure,function and work flow of information service system based network are introduced. 相似文献
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渔业科学数据智能RSS阅读器的设计研究 总被引：1，自引：1，他引：0
针对传统RSS阅读器在实际应用中接收大量冗余信息的问题,提出一种智能化的RSS阅读器。该阅读器基于渔业科学数据平台,采用向量空间模型,运用中文分词、对象持久化等技术实现智能原理,设计实现了智能化RSS阅读器。实验证明：该阅读器的过滤有效性为86.2%,过滤准确性为82.4%,能够较好地过滤掉与用户不相关的信息。应用结果表明：渔业科学数据智能RSS阅读器的实现可使用户获得更精准的信息。 相似文献
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Continuous industries CIMS is a complex system consists of human and machines under certain environment. It has been proved that there is limitation to only pursue high degree intelligent system, so the idea of human machine can be used to research CIMS under system theory viewpoint. Combining advanced multi agent technology and theory, a human machine cooperation mechanism with agent as the middle medium is presented which can provide a more flexible information mutual interface. In addition, the roles of human and machine under this new mechanism are analyzed. 相似文献
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BIM Based on Intelligent Parametric Modeling Technology 总被引：1，自引：0，他引：1
In order to push the informationization process of the building industry,promote sustainable architectural design and enhance the competitiveness of China's building industry,the authors study BIM(Building Information Modeling) based on intelligent parametric modeling technology.BIM is a new technology in the field of computer aided architectural design,which contains not only geometric data but also the great amount of engineering data throughout the lifecycle of a building.The authors also compare BIM technology with 2D CAD technology,and demonstrate the advantages and characteristics of intelligent parametric modeling technology.BIM,which is based on intelligent parametric modeling technology,will certainly replace traditional computer aided architectural design and become a new driving force to push forward China's building industry in this Information Age. 相似文献
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网络农业信息标准化问题思考 总被引：2，自引：1，他引：1
针对指数级增长、庞杂无序的网络农业信息,部分学者提出了自动采集、智能搜索等技术性解决方案,而对问题关键之所在--网络农业信息标准化的系统研究和报道并不多见。文章概述了网络农业信息资源的建设现状与存在的问题,对国内外标准化研究现状进行综述,并深入探讨了网络农业信息资源标准化中最为基础也较为关键的分类、编码、描述元数据、内容标准化及质量控制五方面问题,以期为相关研究提供建设性观点和参考。 相似文献
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In the course of Information Engineering of enterprises, because of the existence of unplanned system and information verification, enterprises have to change primary data model of the information system. But existing information organizing technique and theory can not solve the influence that unplanned system and information verification impact on preserve linkage and preserve dependency of the data model, and this has great effect on the process of Information Engineering. Aiming at solving the problem mentioned above, on the basis of Relation Data Theory and making use of E-R model, the paper puts forward an information organization technique based on entity linkage with well expandability and flexibility. The technique can adapt to information verification and adjustment of enterprise. 相似文献
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我国食品安全中存在的信息不对称及其对策探究 总被引：1，自引：0，他引：1
我国食品安全过程存在着因多头监管导致的"政府失灵"和由于信息不对称引起的"市场失灵"的问题。多头监管现状由于受体制限制,改革成本高,且短期内收效甚微。以解决信息不对称入手,提出从制定《食品安全指南》,出台《食品安全信息管理条例》,建立国家食品安全信息网,以及引入"吹哨法案"等解决"市场失灵"问题,以期市场本身能够为消费者提供安全、优质的食品。 相似文献
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Inter-communication marks a highlight of Multi - Agent system research, KQML (Knowledge Query and Manipulation Language) is widely used for agent communication. After analyzing and researching the structure of KQML which including the communication protocol defined in the language, the content of the language, message router and facilitator , we design an agent communication architecture which solves the communication problems of agents in our inte-grative and intelligent backup system ( ADP) and provide its implementation methods. 相似文献
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智能机器人在农业自动化领域的主要应用 总被引：3，自引：0，他引：3
通过对智能机器人在农业自动化领域的主要应用进行研究,包括采摘机器人、嫁接机器人、耕耘机器人、除草机器人、喷农药机器人、插秧机器人、林木清洁机器人、饲喂机器人、禽蛋检测与分级机器人。发现应用于农业智能机器人的主要技术有感知与避障技术、机器视觉技术、信息融合技术及农业专家系统。农业机器人的智能问题、成本过高问题和易受环境变化的影响问题,需要进一步研究解决。 相似文献
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农业农村信息服务个性化推送技术 总被引：4，自引：1，他引：3
推送技术作为一种高效快捷的信息获取方法,是实现信息个性化服务的有效途径,但其在农业农村信息服务领域中的表现却不够理想,究其原因,在于推送技术缺乏针对性致使其难以满足用户的个性化要求。该文针对推送技术存在的缺陷,提出了地域分区推送、协同过滤推荐、时间分块推送和记忆推送等新方法,并且将这些新技术融入到农业农村信息推送服务中,解决了推送技术在农业农村信息服务中的个性化不足问题,提高了农业农村信息的服务水平,对我国的农业农村信息化进程有积极的推动作用。 相似文献
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This paper analyzes the problems of traditional estate management with the example of that in intelligent uptown. In dealing with the problems, it recommends the Estate Management and Information Service System of Intelligent Uptown as a new generation of estate management system, which employs distributed database and WEB database technology. 相似文献
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An approach based on hybrid semantic model (HSM) was proposed to the solve problem raised in the retrieval process of product knowledge documentation. It expands the traditional user query to a semantic set composed of user preference, context and query, while representing the knowledge documents and user interest with an ontology based fuzzy concept. The leaves in the ontology are selected as components of the document concept vector with the weight determined by the depth of the concept in the ontology graph, the quantity of the information contained, and occurrence in the document and the whole repository. Furthermore, ontology is used to express context and query, and to construct a user preference model. Different relevancy computation methods are adopted for different retrieval models. The semantic similarity between query or user preference and documentation is computed by cosine method. The semantic similarity of context is estimated by the concept distance in the concept hierarchy. Finally, the method is shown by experimentation to be more effective than the classic vector space method. 相似文献
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基于WebGIS的县域农业资源信息共享系统研究 总被引：6，自引：2，他引：4
数字农业(Digital Agriculture)技术的实施和完善离不开各种农业资源数据的强有力支持。笔者针对重庆江津市农业资源信息“信息孤岛”的现状,在统一网络平台的支持下,集成3S技术、Web技术和空间数据库技术,以农业资源数据库为基础,采用“元数据集中,实体数据集中”和“元数据集中,实体数据分散”相结合的模式,建立了一个集数据管理、数据的查询和检索以及数据发布等功能为一体的农业资源共享系统。应用结果表明,系统可以最大限度地利用现有农业资源数据,为农业部门的生产决策提供依据;能有效减少农业资源信息采集、加工整理过程中人力、物力和财力的投入,促进农业信息化、规范化发展。同时,系统为农业资源管理和共享提出的思路也适用于其他的行业应用,具有一定的推广意义。 相似文献
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大庆市盐成土土纲的分类研究 总被引：4，自引：1，他引：3
依据所积累掌握的大庆市土壤资料,按中国土壤系统分类(第三版)进行检索,建立了大庆市土壤系统分类的分类系统。将大庆地区土壤分为5个土纲,盐成土纲是其中的1个土纲,在盐成土纲中又可以分为2个亚纲,3个土类。笔者主要从生境条件、形态特征、性状、生产能力、典型剖面等几个方面介绍弱盐潮湿碱积盐成土,弱盐简育碱积盐成土,弱碱潮湿正常盐成土,潜育潮湿正常盐成土,为土壤的科研、教学和生产提供理论基础。 相似文献
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北京市农产品商品基础信息数据库设计与应用 总被引：1，自引：1，他引：0
农产品商品品种是农产品市场信息的载体,而农产品市场信息是做好农产品市场行情分析、预测、预警的基础。由此可见,开发设计农产品商品基础信息数据库是非常必要的。因此,从总体架构设计、功能模块构建以及数据库应用方面对农产品商品基础信息数据库做了介绍。重点介绍了分类检索模块、形态检索模块、综合检索模块、品种检索模块、名词术语检索模块以及质量分级检索模块的特点及用途,并详细分析了农产品商品数据库在农产品市场信息采集标准、农产品市场行情分析预测以及农产品品种更替等方面的作用。农产品商品数据库的建立不仅为规范农产品市场信息采集标准提供参考,而且可为其他相关行业数据库开发提供借鉴。 相似文献
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分别利用中国知网(CNKI)和Science Direct(SD)搜索平台进行文献计量分析,采用国家知识产权局专利检索与分析平台检索分析专利授权情况,采用微软Bing搜索国际版搜索引擎搜集智能包装技术与产品,并进行归纳及整理,以追踪相关科学研究热点,分析相关产品的应用现状和发展方向。发现近二十年来,关于包装专用新型功能材料研究文献量最大;而知识产权方面,信息型智能包装授权明显高于其他类型,生产中应用也较多,是未来包装技术发展方向。 相似文献
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To solve the problem of lane detection in intelligent auxiliary driving system and as the common ways have some shortcoming such as less real-time and adaptive, the paper raises a new way. Based on the edge being extracted, the feature model of lane markings is built by combining the Median of the Intercepts and the spline. One effective and real time method in highway surface searching and following is presented. The result proves that the method can figure out the way stretching correctly. And therefore, it provides reliable information for the vehicle to be self-anti-deviation. At the same time, it also supplies some valuable discussion on problems existing in its experiments. 相似文献