What do M and EF parameters mean

[adamKuzanski]

Hi,

I tested how M and EF values influence the performance of k-nn searching. However, by reading the documentation I have no idea what those parameters mean. Could somebody please say how to interpret those parameters?

[wskish]

https://github.com/nmslib/hnswlib/blob/master/ALGO_PARAMS.md

[wskish]

Very roughly, M controls index accuracy-memory tradeoff and EF controls cpu time-accuracy tradeoff.

[adamKuzanski]

Thank you very much ❤️