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1·A new router-aided multicast network tomography method is proposed to estimate the spatial-temporal distribution of network performance.

提出一种新型路由器辅助的多播网络层析方法并用其估计网络性能的时空分布。

2·Network Identification, one of the studies of the network tomography, is the proposition of the network link-level performance inference.

网络拓扑推测是网络断层扫描研究内容之一，是推测网络内部链路性能的前提条件。

3·Inference analysis theory plays a central role in studies of network tomography and influences directly network measurement's computation complexity and inference veracity.

推断分析理论作为网络断层扫描的核心技术，直接关系到网络测量的计算复杂度和推断准确性。

4·Network tomography is a new network question for discussion, which aims to obtain link-level performance characteristics, such as loss rate and average delay on each link, by end-to-end measurement.

网络透视是一新兴网络课题，旨在通过端到端的方法得到链联级的性能特性，比如：丢包率和平均延迟等。