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    Internet Latencies Through Prediction Trees
    1.
    发明申请
    Internet Latencies Through Prediction Trees 审中-公开
    互联网延迟通过预测树

    公开(公告)号：US20080304421A1

    公开(公告)日：2008-12-11

    申请号：US11759473

    申请日：2007-06-07

    申请人： Venugopalan Saraswati Ramasubramanian ,  Dahlia Malkhi ,  Mahesh Balakrishnan ,  Fabian Daniel Kuhn ,  Ittai Abraham

    发明人： Venugopalan Saraswati Ramasubramanian ,  Dahlia Malkhi ,  Mahesh Balakrishnan ,  Fabian Daniel Kuhn ,  Ittai Abraham

    IPC分类号： H04L12/26

    CPC分类号： H04L41/147 ,  H04L43/0852

    摘要： A prediction tree for estimating values of a network performance measure. Leaf nodes of the prediction tree are associated with networked computing devices and interior nodes are not necessarily representative of physical network connections. Values are assigned to edges in the prediction tree and the network performance measure relative to two computing devices represented by two nodes of the tree is estimated by aggregating the values assigned to the edges in the path in the prediction tree joining the two edges. Mechanisms for adding nodes representing computing devices to the prediction tree, for identifying a closest node representing a computing device in the prediction tree, for identifying a cluster of devices represented by nodes of the tree, and for rebalancing the prediction tree are provided.

    摘要翻译： 用于估计网络性能测量值的预测树。 预测树的叶节点与网络计算设备相关联，而内部节点不一定代表物理网络连接。 值被分配给预测树中的边缘，并且通过聚合分配给连接两个边缘的预测树中的路径中的边缘的值来估计相对于由树的两个节点表示的两个计算设备的网络性能测量。 提供了将表示计算设备的节点添加到预测树的机制，用于识别表示预算树中的计算设备的最接近的节点，用于识别由树的节点表示的设备的集群以及用于重新平衡预测树。

    HIERARCHICAL SYNCHRONIZATION OF REPLICAS
    2.
    发明申请
    HIERARCHICAL SYNCHRONIZATION OF REPLICAS 审中-公开
    REPLICAS的分层同步

    公开(公告)号：US20090006489A1

    公开(公告)日：2009-01-01

    申请号：US11771273

    申请日：2007-06-29

    申请人： Venugopalan Saraswati Ramasubramanian ,  Thomas L. Rodeheffer ,  Douglas B. Terry ,  Edward P. Wobber

    发明人： Venugopalan Saraswati Ramasubramanian ,  Thomas L. Rodeheffer ,  Douglas B. Terry ,  Edward P. Wobber

    IPC分类号： G06F17/30

    CPC分类号： H04L67/1095 ,  G06F16/1787 ,  G06F16/184 ,  G06F16/27

    摘要： A hierarchical system is disclosed for synchronizing partially-replicated collections that provides guaranteed paths of information to all replicas in a collection. Each partial replica is assigned a parent replica to act as a proxy on its behalf, and with which the replica synchronizes regularly. Each parent replica is responsible for one or more child replicas. Parent replicas have filters which are either the same as, or more inclusive than, their child replicas, and parent replicas thus store and synchronize all objects that are of interest to their one or more child replicas.

    摘要翻译： 公开了一种分层系统，用于同步部分复制的集合，其向集合中的所有副本提供有保障的信息路径。 每个部分副本被分配一个父副本以代表其代理，并且副本经常同步。 每个父副本都负责一个或多个子副本。 父副本具有与其子副本相同或更多的过滤器，并且父副本因此存储和同步其一个或多个子副本感兴趣的所有对象。