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基于EXCEL的数据报表系统,能充分利用Excel强大的报表功能,将数据库信息以多种报表方式予以输出, 同时探讨了使用Micro soft Excel实现数据、数据库报表的效率问题. 相似文献
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随着电视技术和IT技术的发展,数据库广泛地应用于电视中心技术系统。运维人员基于业务应用对数据库进行查询和分析,可以快速定位系统故障,查询数据信息,提升系统性能,提高控制和管理系统的能力。本文就是介绍在电视中心运维系统中,如何正确地使用数据库分析和查询手段,更好地定位故障和查询报表。 相似文献
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提出一种利用XML和Excel设计动态通用报表系统的新方法。首先对Excel报表模板进行分解,生成报表模板的报表信息、架构信息和映射信息,再根据统计模板生成统计分析信息,这些信息均以XML文档的形式存入数据库。在系统运行时,将用户上报的Excel文件中的报表数据提取出来,以XML文档的形式存入数据库。然后结合XPath和XQuery对报表数据进行统计分析,得到统计报表数据。最后将统计报表数据组装为Excel文件输出给用户。采用这种方法设计的报表系统动态灵活、通用性强。 相似文献
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首先介绍了互联网电视的含义和互联网电视领域的发展状况,然后采用国家知识产权局的专利检索与服务系统的中国专利文摘数据库进行了专利检索,对互联网电视技术的特点、专利申请分布、申请人及专利发展趋势进行了详细的分析和深入的研究,基于互联网电视领域的专利申请特点,给出了国内互联网电视的发展建议. 相似文献
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为更好地了解新疆地区中药产业发展现状及趋势,文章采用专利信息分析的研究方法,利用incoPat数据库,对我国新疆地区的中药产业进行专利检索与分析.文中着重从专利类型、专利法律状态、专利申请量、专利申请人、专利技术领域以及专利申请地域等多个维度进行研究.剖析与探索目前新疆维吾尔自治区中药产业技术发展情况与未来趋势,为新疆... 相似文献
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通过检索专利数据库,分析了超材料的研发进展。指出了超材料专利分布中一家独大的特殊现象。概述了超材料专利的发展历程,统计分析了超材料在结构有序设计、天线、太赫兹等研究领域的专利分布情况及其所传递的研发信息。 相似文献
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首先分析了现有技术的检索在研究开发、专利申请以及无效阶段的重要作用;结合实际案例,介绍如何使用谷歌学术、Deepdyve两个学术搜索引擎检索现有非专利文献;最后介绍了常用的两个免费专利搜索引擎Freepatentsonline以及Patentics的使用.提供给无法获得专业专利数据库及检索引擎的普通个人发明人、申请人针对专利申请利用免费的互联网资源进行更便捷、全面的现有技术检索思路和方式. 相似文献
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图像通信领域案例的互联网检索 总被引:1,自引:1,他引:0
首先介绍了图像通信领域的发展趋势,同时分析了互联网检索在技术研发、专利预警和专利无效诉讼阶段的重要性;然后根据实际案例,使用包括谷歌学术和微软学术在内的两个检索工具进行检索演示;最后介绍中国专利查询系统的使用,帮助社会公众了解其关心的专利申请的审查过程。 相似文献
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关系型的数据库管理系统(RDBMS)在不断发展,人们网上信息检索的要求也越来越高,但有时并不能准确检索到符合自己要求的信息,这一方面是检索者的原因,更重要的是信息的提供者所使用的系统中对人们模糊查询信息的要求未能达到。查询是现在应用系统中的重要组成部分。本文基于关系型数据库管理系统SQL Scrvc,对Transact-SQL语句中LIKE语句的高级应用进行研究,以提高检索的效率和效果。 相似文献
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利用轮边电机直接驱动电动汽车采用轮边电机,避免了机械传动系统中的能量损失,使电能得到了最大的利用。电动汽车采用轮边直驱式可立即产生旋转动力,减少了加速时间,并且对每个车轮实施单独控制非常方便,具有较高的灵敏度。本文主要以DWPI专利数据库以及CNABS数据库中的检索结果为分析样本,从专利文献的视角对轮边驱动电机的技术发展进行了全面的统计分析,总结了与轮边驱动电机相关的国内和国外专利的申请趋势、主要申请人分布以及重点技术分支:轮边驱动电机的发展路线做了一定的分析,并从中得到一定的规律。 相似文献
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本文主要以Sipoabs、DWPI数据库中的检索结果为分析样本,从专利文献的视角对智能驾驶技术中目标识别技术的发展进行了全面的数据统计及分析,分析总结了智能驾驶技术中目标识别技术的国外专利的总体申请趋势和分布、本领域主要申请人的分布和持续研究能力。 相似文献
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为发现微处理器中国专利发明主体的创新能力、主体间的合著模式、合著特点与规律,结合国内外合著分析方法研究状况,构建了发明主体合著关系可视化模型。该模型应用信息可视化技术挖掘隐含于专利数据库中的内在的、客观的、定量的信息,并以图形直观的呈现挖掘结果;同时,以科学计量学的合著率分析该领域科学合著程度。实证分析结果表明,我国的微处理器专利技术多集中在2000年以后,发明人合著强度大,申请机构与区域合著强度小,国内发明人创新能力低于国外发明人。 相似文献
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Multimedia applications involving image retrieval demand fast and efficient response. Efficiency of search and retrieval of
information in a database system is index dependent. Generally, a two-level indexing scheme in an image database can help
to reduce the search space against a given query image. In such type of indexing scheme, the first level is required to significantly
reduce the search space for second stage of comparisons and must be computationally efficient. It is also required to guarantee
that no false negatives may result. The second level of indexing involves more detailed analysis and comparison of potentially
relevant images. In this paper, we present an efficient signature representation scheme for first level of a two-level image
indexing scheme that is based on hierarchical decomposition of image space into spatial arrangement of image features. Experimental
results demonstrate that our signature representation scheme results in fewer number of matching signatures in the first level
and significantly improves the overall computational time. As this scheme relies on corner points as the salient feature points
in an image to describe its contents, we also compare results using several different contemporary corner detection methods.
Further, we formally prove that the proposed signature representation scheme not only results in fewer number of signatures
but also does not result in any false negative. 相似文献
18.
Development of New Technology Forecasting Algorithm: Hybrid Approach for Morphology Analysis and Conjoint Analysis of Patent Information 总被引:2,自引:0,他引:2
Byungun Yoon Yongtae Park 《Engineering Management, IEEE Transactions on》2007,54(3):588-599
Despite being a strong stimulus for the invention of new alternatives, morphology analysis (MA) suffers the limitations of being a nonquantitative, vague, and static methodology. As a consequence, the MA outcomes typically do not provide practical technology opportunities. This paper, therefore, proposes a new hybrid approach that enhances the performance of MA by combining it with conjoint analysis (CA) and citation analysis of patent information. First, keywords are extracted from patent documents using text mining, and the morphology of existing patents is identified by these keywords. Alternatives for new technology development from among the emerging technologies are presented by combining the valuable levels of each attribute in a morphology matrix predefined by domain experts. Then, configurations of new technology are suggested in order of priority using CA, and the technological feasibility of each new configuration is subsequently investigated. The technological competitiveness of a company can be analyzed by a newly suggested index, ldquotechnology share,rdquo which is analogous to the concept of market share in traditional CA. The proposed MA-CA hybrid process is illustrated with a case example of patent information from the thin film transistor-liquid crystal display (TFT-LCD) patent database. 相似文献
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MyungSeok Yang WonKyun Joo KiSeok Choi YoungKuk Kim YunJeong Kim 《Wireless Personal Communications》2018,98(4):3265-3285
Generally, any database is developed for the purpose of providing certain services for retrieval or management of data. If rules or processes designed to extract and analyze data in consideration of data characteristics are simplified and services are provided to users by visualizing analysis results in an easy-to-understand fashion, users will be able to get diverse insights easily without much cost or effort. If this kind of database is constructed and provided in NTIS database as well (e.g., project data, research outcome data such as paper and patent, personnel information, etc.) users might be able to get varied insights on national R&D data. The approach proposed in this study is significant in that it provides platform-based analysis services which can create a knowledge map after extracting and analyzing user-interested data and subsequently visualizing the results. Furthermore, this study is intended to make users obtain insight on a research institute more easily by providing analyzable additional information, not only as a list of research institutes in user-preferred subjects after providing the results of the analysis on R&D expenses, but also in regional distribution and annual changes in core research institutes, focusing on those taking part in national R&D programs in certain fields. 相似文献
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The use of an automated text database by a business development staff and proposal writers for locating and organizing information is examined. The capabilities of an automated information retrieval system containing a text database are discussed. Types of searches are described, and a sample search is given. Benefits and pitfalls of this approach are considered. Applications to other marketing efforts are noted 相似文献