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Content Provider | ACM Digital Library |
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Author | Bilgic, Mustafa Getoor, Lise |
Abstract | Information diffusion, viral marketing, and collective classification all attempt to model and exploit the relationships in a network to make inferences about the labels of nodes. A variety of techniques have been introduced and methods that combine attribute information and neighboring label information have been shown to be effective for collective labeling of the nodes in a network. However, in part because of the correlation between node labels that the techniques exploit, it is easy to find cases in which, once a misclassification is made, incorrect information propagates throughout the network. This problem can be mitigated if the system is allowed to judiciously acquire the labels for a small number of nodes. Unfortunately, under relatively general assumptions, determining the optimal set of labels to acquire is intractable. Here we propose an acquisition method that learns the cases when a given collective classification algorithm makes mistakes, and suggests acquisitions to correct those mistakes. We empirically show on both real and synthetic datasets that this method significantly outperforms a greedy approximate inference approach, a viral marketing approach, and approaches based on network structural measures such as node degree and network clustering. In addition to significantly improving accuracy with just a small amount of labeled data, our method is tractable on large networks. |
Starting Page | 43 |
Ending Page | 51 |
Page Count | 9 |
File Format | PDF QT / MOV |
ISBN | 9781605581934 |
DOI | 10.1145/1401890.1401901 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 2008-08-24 |
Publisher Place | New York |
Access Restriction | Subscribed |
Subject Keyword | Label acquisition Active inference Collective classification |
Content Type | Video Text |
Resource Type | Article |
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