基于内容的Flash检索系统研究
发布时间：2019-03-31 20:32
【摘要】：网络的发展极大地影响了我们的生活方式,它让我们在更容易获取信息的同时,也彻头彻尾地将我们陷入无边无际的信息海洋之中。每时每刻我们都要自觉或不自觉,被动或主动地面对数十亿页面的网络信息,想找回自己所需要的信息简直是“大海捞针”。搜索引擎的出现,让我们有了探索信息海洋的指南针。搜索引擎被业界公认为继广告、网络游戏、无线增值之后互联网的第四桶金。万维网(World Wide Web)是Internet上增长领域最快、最灵活、最通用的一个多种信息集成的多媒体信息发布、浏览与检索系统。Web的巨大魅力是为以多媒体方式发布信息提供了一条快车道。因此,有人用这样的公式解释“Web=Internet+多媒体”。随着信息技术的不断发展和推广应用,基于内容的多媒体信息索引与检索已经成为多媒体研究中的热点课题之一。多媒体信息主要包括文本、图像、图形、声音、视频、动画等形式, Flash动画作为互联网催生的新兴视觉媒介,从诞生至今十年的时间,已经发展成为网络上最流行的多媒体表现形式。 本文以发布格式为SWF的Flash动画为研究对象,以SWF动画文件结构和Flash制作过程为依据,对Flash动画进行了内容特征分析和内容特征标引,按照一定的数据结构创建了基于Flash动画内容分析的索引数据库,并采用动态网页技术和数据库技术建立了一个基于内容的Flash检索系统。 基于内容的Flash检索系统是一个专业的垂直搜索引擎系统,以快速索引和检索网页Flash动画为最终目的。首先,我们通过网络蜘蛛程序按照指定的URL从互联网上采集包含Flash文件的网页链接,然后从这些网页文件上提取Flash文件路径,并下载Flash文件;然后,对下载到的Flash文件进行内容分析,进而通过分析程序对Flash文件进行结构化标注,在此基础上,建立基于Flash内容分析的索引数据库,并运用动态网页技术设计适当的查询接口和友好的查询界面,按照一定的算法模型对数据库进行条件检索,最终,将包含动画摘要和动画链接等信息的页面返回给用户。 本文首先讨论了目前国内外基于内容的Flash检索领域的研究现状和发展趋势;然后对基于内容的Flash检索的关键技术和方法进行了研究,并着重研究了一种基于改进的布尔检索算法;接着论述了基于内容的Flash检索系统的实现方法,并对Flash检索的界面设计和数据结构进行了研究,建立了一个基于内容的Flash检索原型系统;最后,我们讨论了关于海量数据库的编码和压缩问题,对系统数据库进行了一定的改进和优化,并对检索结果进行了分析和统计,实验结果表明,该系统检索Flash准确率较高,相对于传统搜索引擎来说,该系统对采用的算法对提高Flash的查全率与查准率具有积极意义。 Flash资源以其形象、生动、直观的优点,在建构主义学习环境中起着非常重要的作用,将合适的Flash资源应用到教育领域,对于建构主义学习环境的创建,提高教育教学效果具有重要意义,基于内容的Flash检索系统在一定程度上能够更准确有效地帮助学生查找到自己所需要的Flash动画资源。
[Abstract]:The development of the network has greatly affected our way of life, and it makes it easier for us to get information, and we're going to be in an endless, information-free ocean. All the time, we have to consciously or unconsciously, passive or active ground to billions of pages of network information, to find the information that you need is simply a "fishing needle in large sea". The presence of a search engine gives us a compass to explore the information oceans. The search engine is recognized by the industry as the fourth barrel of the internet following advertising, online gaming, and wireless value-added. World Wide Web is one of the fastest, most flexible, and most versatile information-integrated multimedia information publishing, browsing and retrieval systems in the Internet. The great charm of the Web is to provide a fast lane for publishing information in a multimedia way. Therefore, it is possible to interpret the "Web = Internet + Multimedia" in such a formula. With the development and application of information technology, multimedia information indexing and retrieval based on content has become one of the hot topics in multimedia research. The multimedia information mainly includes the form of text, image, graphics, sound, video, animation and so on. Flash animation is the emerging visual medium generated by the Internet, and has developed into the most popular multimedia presentation in the network from the time of its birth to the present ten years. In this paper, the Flash animation of SWF is used as the research object, and the content feature analysis and content feature indexing are carried out on the Flash animation based on the SWF animation file structure and the Flash production process. The index number based on the content analysis of Flash animation is created according to a certain data structure. The dynamic web technology and database technology are used to build a content-based Flash retrieval system. System. Content-based Flash retrieval system is a professional vertical search engine system to quickly index and retrieve web page Flash animation for the end purpose, firstly, the network spider program acquires the webpage link containing the Flash file from the internet according to the specified URL, then extracts the Flash file path from the webpage files, and downloads the Flash file; and then, the downloaded Flash file The content content analysis is carried out, and then the Flash file is structured and marked by the analysis program, on the basis of which, the index database based on the Flash content analysis is established, the appropriate query interface and the friendly query interface are designed by using the dynamic web page technology, and the database is fed into the database according to a certain algorithm model. Line condition retrieval, and finally, a page containing information such as an animation summary and an animation link In this paper, the present research status and development trend of the content-based Flash retrieval field at home and abroad are discussed in this paper. The key technologies and methods of the content-based Flash retrieval are also studied. In this paper, the implementation of Flash retrieval system based on content is discussed, the interface design and data structure of Flash retrieval are studied, a prototype system of Flash retrieval based on content is established, and finally, we discuss the mass database. The coding and compression problems of the system are improved and optimized, and the results of the retrieval are analyzed and statistics. The experimental results show that the system has higher accuracy of retrieval and compared with that of the system. In the case of the traditional search engine, the system of the system is used to improve the full rate and the check of Flash. Flash resources play a very important role in the learning environment of constructivism, and apply the appropriate Flash resources to the field of education. The teaching effect is of great significance, and the content-based Flash retrieval system can help the students find their own needs more accurately and effectively
【学位授予单位】：山东师范大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TP391.3
本文编号：2451254
[Abstract]:The development of the network has greatly affected our way of life, and it makes it easier for us to get information, and we're going to be in an endless, information-free ocean. All the time, we have to consciously or unconsciously, passive or active ground to billions of pages of network information, to find the information that you need is simply a "fishing needle in large sea". The presence of a search engine gives us a compass to explore the information oceans. The search engine is recognized by the industry as the fourth barrel of the internet following advertising, online gaming, and wireless value-added. World Wide Web is one of the fastest, most flexible, and most versatile information-integrated multimedia information publishing, browsing and retrieval systems in the Internet. The great charm of the Web is to provide a fast lane for publishing information in a multimedia way. Therefore, it is possible to interpret the "Web = Internet + Multimedia" in such a formula. With the development and application of information technology, multimedia information indexing and retrieval based on content has become one of the hot topics in multimedia research. The multimedia information mainly includes the form of text, image, graphics, sound, video, animation and so on. Flash animation is the emerging visual medium generated by the Internet, and has developed into the most popular multimedia presentation in the network from the time of its birth to the present ten years. In this paper, the Flash animation of SWF is used as the research object, and the content feature analysis and content feature indexing are carried out on the Flash animation based on the SWF animation file structure and the Flash production process. The index number based on the content analysis of Flash animation is created according to a certain data structure. The dynamic web technology and database technology are used to build a content-based Flash retrieval system. System. Content-based Flash retrieval system is a professional vertical search engine system to quickly index and retrieve web page Flash animation for the end purpose, firstly, the network spider program acquires the webpage link containing the Flash file from the internet according to the specified URL, then extracts the Flash file path from the webpage files, and downloads the Flash file; and then, the downloaded Flash file The content content analysis is carried out, and then the Flash file is structured and marked by the analysis program, on the basis of which, the index database based on the Flash content analysis is established, the appropriate query interface and the friendly query interface are designed by using the dynamic web page technology, and the database is fed into the database according to a certain algorithm model. Line condition retrieval, and finally, a page containing information such as an animation summary and an animation link In this paper, the present research status and development trend of the content-based Flash retrieval field at home and abroad are discussed in this paper. The key technologies and methods of the content-based Flash retrieval are also studied. In this paper, the implementation of Flash retrieval system based on content is discussed, the interface design and data structure of Flash retrieval are studied, a prototype system of Flash retrieval based on content is established, and finally, we discuss the mass database. The coding and compression problems of the system are improved and optimized, and the results of the retrieval are analyzed and statistics. The experimental results show that the system has higher accuracy of retrieval and compared with that of the system. In the case of the traditional search engine, the system of the system is used to improve the full rate and the check of Flash. Flash resources play a very important role in the learning environment of constructivism, and apply the appropriate Flash resources to the field of education. The teaching effect is of great significance, and the content-based Flash retrieval system can help the students find their own needs more accurately and effectively
【学位授予单位】：山东师范大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TP391.3
【引证文献】
相关硕士学位论文 前2条
1 姜凤霞;基于内容的Flash数据库检索算法研究[D];山东师范大学;2012年
2 董志强;基于内容的Flash Movies分类研究[D];山东师范大学;2012年
，本文编号：2451254
本文链接：https://www.wllwen.com/wenyilunwen/guanggaoshejilunwen/2451254.html
