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The Topology Data Analysis uses the Mapper algorithm, but computational complexity is not good. Is there an alternative algorithm for algorithm Mapper? Is there an algorithm that works faster?

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    $\begingroup$ I'm guessing you're referring to the Mapper algorithm of Singh, Mémoli and Carlsson from this paper ayasdi.com/wp-content/uploads/2015/02/… . It would help if you edited some more background into your question and were more precise about your needs. $\endgroup$ – j.c. Apr 4 '18 at 13:59
  • $\begingroup$ Yes. Computational cost is big: at some point, if computing one barcode / persistence diagram is rather ok, computing thousand of them, and then compute pairwise distances between them etc ... is a bit complicated. That is computational problem. What is Time computational complexity for Mapper? $\endgroup$ – Karolina Paradysz Apr 4 '18 at 17:52

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