美国众议院的社区结构
Community Structure in the United States House of Representatives
摘要：
我们调查的网络委员会和小组委员会的任务，在美国众议院从第101 - 108届国会，与委员会连接的“联锁”或共同的成员。我们使用几种方法来研究这些网络中的社区结构，揭示了某些委员会之间的紧密联系以及整个众议院的内在层次结构。我们确定了结构的变化，包括额外的层次和更高的模块化，从1994年的选举中，共和党赢得了众议院的多数地位，在四十多年来的第一次。我们还将我们的网络方法与使用奇异值分解的唱名表决分析相结合，以揭示众议院委员会的政治和组织结构之间的相关性。
英文摘要：
We investigate the networks of committee and subcommittee assignments in the United States House of Representatives from the 101st--108th Congresses, with the committees connected by ``interlocks'' or common membership. We examine the community structure in these networks using several methods, revealing strong links between certain committees as well as an intrinsic hierarchical structure in the House as a whole. We identify structural changes, including additional hierarchical levels and higher modularity, resulting from the 1994 election, in which the Republican party earned majority status in the House for the first time in more than forty years. We also combine our network approach with analysis of roll call votes using singular value decomposition to uncover correlations between the political and organizational structure of House committees.
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