CISE Research Instrumentation: Presentation Languages in Multimedia Databases

多媒体数据库中的表示语言多媒体表示是指使用监视器显示文本、视频或静止图像，扬声器显示音频的多媒体数据的并发表示。每个演示包含从数据库检索的多媒体片段，并由演示管理器软件构建和播放。这项研究有三个组成部分。(a)开发了一个原型系统，以便为初级计算机用户自动组装多媒体数据库的演示文稿。然后在不同的应用领域对系统进行修改和评估。教育领域的课程助理软件就是一个例子。(b)在不同的应用领域实现并评价了一种面向中级计算机用户的表示构造语言。该语言提供了对演示文稿中并发段的数量和内容的控制，并且能够指定演示文稿中的播放时间更改，以及多个播放管理器之间的通信和同步。(c)为高级用户开发和评价一种表示操作语言。该开发是在具有MPEG捕获和播放能力的多媒体个人计算机和工作站上进行的，由仪器拨款获得。开发平台为Windows NT和UNIX。

CDA-9529503 Gultekin Ozsoyoglu Z. Meral Ozsoyoglu Case Western Reserve University Presentation Languages in Multimedia Databases Multimedia presentation refers to the concurrent presentation of multimedia data using monitors for text, video or still images, and speakers for audio. Each presentation contains multimedia segments retrieved from a database, and is constructed and played out by a presentation manager software. This research has three components. (a) A prototype system is developed to automate the assembly of presentations from multimedia databases for beginning computer users. The system is then revised and evaluated in different application domains. One example is a Course-Assistant software in education. (b) A presentation construction language for intermediate computer users is implemented and evaluated in different application domains. The language provides control on the number and contents of concurrent segments in a presentation, and has the ability to specify playout-time changes in a presentation, and communication and synchronization among multiple playout managers. (c) For advanced users, a presentation manipulation language is developed and evaluated. The development is carried out on multimedia personal computers with MPEG capture and playout capabilities and on workstations, acquired by the instrumentation grant. The development platforms are Windows NT and UNIX.