<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Looking forward to reading Emile’s paper, but in the meantime: Nick Kernan, a graduate student of mine, wrote a python script for selecting a geographically diverse set of probes from a list of probes. The script implements a simple greedy algorithm, which we came up with after playing with several alternatives, and which we found to work very well in practice. Nick’s script also adds an option to add ASN diversity by specifying a limit to be attempted on the number of probes selected from the same ASN during the greedy selection. See <span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""> </span><a href="https://github.com/nicholaskernan/probe-filters" class="">https://github.com/nicholaskernan/probe-filters</a>. Feel free to use (attribution would be appreciated). And the RIPE folks, if you find this generally useful, feel free to incorporate it into the API.<div class=""><br class=""></div><div class="">—Misha</div><div class=""> <br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Jun 27, 2022, at 4:02 PM, Randy Bush <<a href="mailto:randy@psg.com" class="">randy@psg.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><blockquote type="cite" class="">IMHO it’s most likely credit farming.<br class=""></blockquote><br class="">which is amusing, as a note on this list or nanog asking for credits<br class="">usually requires a pickup truck.<br class=""><br class=""><blockquote type="cite" class="">Emile Aben, I would be happy to see code for detecting overly similar<br class="">probes. It would save a lot of time spend on data filtering.<br class=""></blockquote><br class=""> "Metis: Better Atlas Vantage Point Selection for Everyone"<br class=""><br class=""> Malte Appel (Internet Initiative Japan), Emile Aben (RIPE NCC), and<br class=""> Romain Fontugne (Internet Initiative Japan)<br class=""><br class="">at TMA thursday<br class=""><br class="">randy<br class=""><br class="">-- <br class="">ripe-atlas mailing list<br class=""><a href="mailto:ripe-atlas@ripe.net" class="">ripe-atlas@ripe.net</a><br class="">https://mailman.ripe.net/<br class=""></div></div></blockquote></div><br class=""></div></body></html>