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    • 35. 发明申请
    • DISTRIBUTED, FAULT-TOLERANT AND HIGHLY AVAILABLE COMPUTING SYSTEM
    • 分布式,容错和高可用的计算系统
    • US20080270838A1
    • 2008-10-30
    • US11740556
    • 2007-04-26
    • Chitra DoraiRobert E. Strom
    • Chitra DoraiRobert E. Strom
    • G06F11/00
    • G06F9/546G06F11/1461G06F11/1469G06F11/1482G06F11/1484G06F2201/835
    • A method and system for achieving highly available, fault-tolerant execution of components in a distributed computing system, without requiring the writer of these components to explicitly write code (such as entity beans or database transactions) to make component state persistent. It is achieved by converting the intrinsically non-deterministic behavior of the distributed system to a deterministic behavior, thus enabling state recovery to be achieved by advantageously efficient checkpoint-replay techniques. The method comprises: adapting the execution environment for enabling message communication amongst and between the components; automatically associating a deterministic timestamp in conjunction with a message to be communicated from a sender component to a receiver component during program execution, the timestamp representative of estimated time of arrival of the message at a receiver component. At a component, tracking state of that component during program execution, and periodically checkpointing the state in a local storage device. Upon failure of a component, the component state is restored by recovering a recent stored checkpoint and re-executing the events occurring since the last checkpoint. The system is deterministic by repeating the execution of the receiving component by processing the messages in the same order as their associated timestamp.
    • 一种用于在分布式计算系统中实现高可用性,容错执行组件的方法和系统,而不需要这些组件的写入程序来明确地编写代码(例如实体bean或数据库事务)以使组件状态持续存在。 通过将分布式系统的本质非确定性行为转换为确定性行为来实现,从而通过有利的高效检查点重放技术实现状态恢复。 该方法包括:使执行环境适应于在组件之间和之间启用消息通信; 将确定性时间戳与在程序执行期间从发送方组件传送到接收方组件的消息相结合,该时间戳代表消息在接收器组件处的估计到达时间。 在组件中,在程序执行期间跟踪该组件的状态,并周期性地检查本地存储设备中的状态。 在组件发生故障时,通过恢复最近存储的检查点并重新执行自上次检查点以来发生的事件来恢复组件状态。 通过以与其相关联的时间戳相同的顺序处理消息来重复接收组件的执行,该系统是确定性的。
    • 39. 发明申请
    • System and method for semantic video segmentation based on joint audiovisual and text analysis
    • 基于联合视听和文本分析的语义视频分割系统和方法
    • US20070055695A1
    • 2007-03-08
    • US11210305
    • 2005-08-24
    • Chitra DoraiYing LiYoungja Park
    • Chitra DoraiYing LiYoungja Park
    • G06F17/00
    • G06F17/30787G06F17/30796
    • System and method for partitioning a video into a series of semantic units where each semantic unit relates to a generally complete thematic topic. A computer implemented method for partitioning a video into a series of semantic units wherein each semantic unit relates to a theme or a topic, comprises dividing a video into a plurality of homogeneous segments, analyzing audio and visual content of the video, extracting a plurality of keywords from the speech content of each of the plurality of homogeneous segments of the video, and detecting and merging a plurality of groups of semantically related and temporally adjacent homogeneous segments into a series of semantic units in accordance with the results of both the audio and visual analysis and the keyword extraction. The present invention can be applied to generate important table-of-contents as well as index tables for videos to facilitate efficient video topic searching and browsing.
    • 将视频分割成一系列语义单元的系统和方法,其中每个语义单元涉及一般完整的主题。 一种用于将视频分割成一系列语义单元的计算机实现的方法,其中每个语义单元涉及主题或主题,包括将视频划分为多个同构段,分析视频的音频和视觉内容,提取多个 根据视频的多个同构段的每个的语音内容的关键字,以及根据音频和视频的结果检测和合并多个语义相关和时间上相邻的同构段的组成一系列语义单元 分析和关键词提取。 本发明可以应用于产生重要的内容表以及用于视频的索引表,以便于有效的视频主题搜索和浏览。