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. Author manuscript; available in PMC: 2017 Mar 24.
Published in final edited form as: IEEE Signal Process Lett. 2014 Jun 5;21(10):1192–1196. doi: 10.1109/LSP.2014.2329056

Fig. 2.

Fig. 2

Two ways to construct the graph: two-cycle dataset (a) using the strategy of Wang et al. [7], the total reconstructed error is 12.29283; (b) using the strategy of the proposed method, the total reconstructed error is 0.00039. From the results, we can see the proposed strategy can construct the graph in a compact way.