I created this JIRA to collect use cases of using more than 1 (pseudo)-eigenvectors in power iteration clustering, in order to decide whether we want to add this feature. Some related work:
- Deflation-based power iteration clustering: http://www.cs.ucsb.edu/~veronika/MAE/deflation-PIC.pdf
- Spectral Clustering via the Power Method – Provably: http://arxiv.org/abs/1311.2854
If you are interested in this feature, please describe your use cases in comments and why using a single eigenvector is not sufficient.