Non-representative sampled networks: Estimation of network structural properties by weighting
非代表性网络样本:通过加权估计网络结构性质AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究非代表性网络抽样对网络结构指标及网络效应估计的影响,并提出网络加权方法,明确对应网络与干扰方向。
非代表性网络样本:通过加权估计网络结构性质AI 解读 ↓
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This paper analyzes statistical issues arising from non-representative samples of a network. Sampled network data could systematically bias the network properties and generate non-classical measurement error problems. Apart from the sampling rate and the elicitation procedure, the biases on network structural measures depend non-trivially on which subpopulations of nodes are missing with higher probability. We propose a methodology, adapting weighted estimators to networked contexts, which enables researchers to recover several network-level statistics and reduce the biases in the estimated network effects. The proposed weighted estimators are consistent and asymptotically normally distributed and have good performance in finite samples. Notably, our approach does not require users to assume any network formation model and is straightforward to implement.