关键词: 抽样探测, 网络模型, 偏向性

Abstract: Traceroute exploration is the main method in Internet topology discovery.However，due to the localization of traceroute，the results of Internet topology properties are biased.This paper introduces several network models to analyze the bias problem on network properties sampled by traceroute exploration，including node discovery proportion，edge discovery proportion and node degree distributions.Based on the limit of setting network exploration parameters，it also discusses the optimization problem of network exploration on deploying the sources and destination density from a quality view.

Key words: sample, network model, bias