共查询到19条相似文献,搜索用时 125 毫秒
1.
2.
3.
本文提出一种多媒体数据挖掘系统的一般结构和挖掘的过程,说明了不同类型多媒体数据挖掘的基本方法和技术,并对多媒体数据提出了阐述和展望。 相似文献
4.
叶姝 《计算机光盘软件与应用》2012,(10):170-171
研究多媒体形式的数据的挖掘是目前一个很前沿的课题,它涉及到很多的领域包括网络、多媒体的技术、数据库以及关于知识的决策等。基于通常的一些数据库中所含的数据与多媒体的数据在一些特性上存在很多的不同点,也就使得在数据的挖掘上应用一些相对常规的方法没有办法实现特性上区别挖掘。这就需要研究出能够适用于挖掘多媒体数据的方法以及相应的技术。本研究介绍的是基于WEB技术实现多媒体数据的挖掘。 相似文献
5.
辅助决策的新闻视频挖掘 总被引:1,自引:0,他引:1
新闻视频是一种丰富的信息源,对其进行有效的挖掘将有力地辅助决策分析。本文从多媒体信息系统的角度出发,深入思考了辅助决策的新闻视频的挖掘内容和挖掘方法,主要解决了以下两个问题:即挖掘什么和如何去挖的问题。指出辅助决策的新闻视频挖掘的内容应包括结构挖掘、语义事件挖掘、趋势挖掘、关联规则挖掘以及决策者兴趣点挖掘等等;并以一个具体的例子来说明新闻视频挖掘的各种方法,如结构的分割、语义事件的探测、新闻故事重要度的判定、专题的统计分析以及模式的可视化等等。本文较好地实现了新闻视频的内容分析与挖掘的结合,初步的实验证明了提出的新闻视频挖掘方法在辅助决策方面具有有效性。 相似文献
6.
本文围绕着"教师多媒体软件使用情况"方面的四个问题,演示了数据挖掘的过程,重点阐述了如何利用数据挖掘工具,对挖掘结果的分类、测试检验、算法修改等操作,并将分类特征可视化,最终针对挖掘结果进行了分析,得出结论。对于数据挖掘在数据分析中的应用,本文做了很好的示范。 相似文献
7.
频繁闭合项目集的并行挖掘算法研究 总被引:2,自引:1,他引:2
频繁项目集挖掘因其在数据挖掘领域中的基础地位和广泛应用备受学术界和产业界的关注,用挖掘频繁闭合项目集代替挖掘频繁项目集是近年来提出的一个重要策略。不同于以往提出的挖掘所有频繁项目集的并行算法,本文针对频繁闭合项目集的特性及并行挖掘的特点,给出了共享存储器模型上(Shared Memory)基于频繁模式树(FP-tree)的挖掘频繁闭合项目集的并行算法(FCIPM)思想,提出了频繁闭合项目集直接判断法,性能分析表明所提技术对算法的性能提高起到了关键作用。 相似文献
8.
9.
带时间特征的序列模式挖掘算法TESP 总被引:4,自引:0,他引:4
引入序列模式时间特征的概念,并提出了一个带时间约束的序列模式挖掘算法,称做TESP(Time-enriched Sequential Pattern mining),该算法在找出模式的同时,也给出了序列模式的时间特征,并且允许用户在挖掘之前对模式的这些时间特征进行限制,提高了序列模式挖掘的灵活性和有用性。 相似文献
10.
近年来,数据挖掘技术的应用越来越广泛。本文研究了空间挖掘技术的理论、过程及方法.并在此基础上提出了一种基于MapX的空间数据挖掘系统结构,以及挖掘过程中所需的数据预处理方法和挖掘算法,为数据挖掘与GIS的集合找到了一种解决方法。 相似文献
11.
12.
多媒体数据的聚簇开采 总被引:3,自引:0,他引:3
Internet的普及使多媒体信息的信息量急剧增大,因而,多媒体数据开采逐渐引起人们的关注。文章基于多媒体数据的特点,结合多媒体信息检索技术和数据开采方法,提出了多媒体数据开采系统的基本框架,并给出多媒体数据上的一种聚簇开采算法MDC。 相似文献
14.
提出了一种多媒体数据库的关联规则挖掘系统模型。介绍了模型的组成,分述了特征提取组件、特征库、挖掘部件3个主要部分,并且介绍了主要的挖掘算法。 相似文献
15.
One major challenge in the content-based image retrieval (CBIR) and computer vision research is to bridge the so-called “semantic gap” between low-level visual features and high-level semantic concepts, that is, extracting semantic concepts from a large database of images effectively. In this paper, we tackle the problem by mining the decisive feature patterns (DFPs). Intuitively, a decisive feature pattern is a combination of low-level feature values that are unique and significant for describing a semantic concept. Interesting algorithms are developed to mine the decisive feature patterns and construct a rule base to automatically recognize semantic concepts in images. A systematic performance study on large image databases containing many semantic concepts shows that our method is more effective than some previously proposed methods. Importantly, our method can be generally applied to any domain of semantic concepts and low-level features.
Wei Wang received his Ph.D. degree in Computing Science and Engineering from the State University of New York (SUNY) at Buffalo in 2004, under Dr. Aidong Zhang's supervision. He received the B.Eng. in Electrical Engineering from Xi'an Jiaotong University, China in 1995 and the M.Eng. in Computer Engineering from National University of Singapore in 2000, respectively. He joined Motorola Inc. in 2004, where he is currently a senior research engineer in Multimedia Research Lab, Motorola Applications Research Center. His research interests can be summarized as developing novel techniques for multimedia data analysis applications. He is particularly interested in multimedia information retrieval, multimedia mining and association, multimedia database systems, multimedia processing and pattern recognition. He has published 15 research papers in refereed journals, conferences, and workshops, has served in the organization committees and the program committees of IADIS International Conference e-Society 2005 and 2006, and has been a reviewer for some leading academic journals and conferences. In 2005, his research prototype of “seamless content consumption” was awarded the “most innovative research concept of the year” from the Motorola Applications Research Center.
Dr. Aidong Zhang received her Ph.D. degree in computer science from Purdue University, West Lafayette, Indiana, in 1994. She was an assistant professor from 1994 to 1999, an associate professor from 1999 to 2002, and has been a professor since 2002 in the Department of Computer Science and Engineering at the State University of New York at Buffalo. Her research interests include bioinformatics, data mining, multimedia systems, content-based image retrieval, and database systems. She has authored over 150 research publications in these areas. Dr. Zhang's research has been funded by NSF, NIH, NIMA, and Xerox. Dr. Zhang serves on the editorial boards of International Journal of Bioinformatics Research and Applications (IJBRA), ACMMultimedia Systems, the International Journal of Multimedia Tools and Applications, and International Journal of Distributed and Parallel Databases. She was the editor for ACM SIGMOD DiSC (Digital Symposium Collection) from 2001 to 2003. She was co-chair of the technical program committee for ACM Multimedia 2001. She has also served on various conference program committees. Dr. Zhang is a recipient of the National Science Foundation CAREER Award and SUNY Chancellor's Research Recognition Award. 相似文献
16.
17.
Hua-Fu Li 《Multimedia Tools and Applications》2009,41(2):287-304
Mining of music data is one of the most important problems in multimedia data mining. In this paper, two research issues of
mining music data, i.e., online mining of music query streams and change detection of music query streams, are discussed.
First, we proposed an efficient online algorithm, FTP-stream (Frequent Temporal Pattern mining of streams), to mine all frequent melody structures over sliding windows of music melody sequence streams. An effective bit-sequence
representation is used in the proposed algorithm to reduce the time and memory needed to slide the windows. An effective list
structure is developed in the FTP-stream algorithm to overcome the performance bottleneck of 2-candidate generation. Experiments
show that the proposed algorithm FTP-stream only needs a half of memory requirement of original melody sequence data, and
just scans the music query stream once. After mining frequent melody structures, we developed a simple online algorithm, MQS-change
(changes of Music Query Streams), to detect the changes of frequent melody structures in current user-centered music query streams. Two music melody
structures (set of chord-sets and string of chord-sets) are maintained and four melody structure changes (positive burst,
negative burst, increasing change and decreasing change) are monitored in a new summary data structure, MSC-list (a list of Music Structure Changes). Experiments show that the MQS-change algorithm is an effective online method to detect the changes of music melody
structures over continuous music query streams.
相似文献
Hua-Fu LiEmail: |
18.