The only thing you can do (and that's exactly what Ancestry wants you to do) is compare family trees of your SM with yours. They don't care if you will be successful (as for IBS segments you can compare until you take your last breath) but want you to spend as much time on their website as possible (to create the impression how useful it is). I rather concentrate on finding MRCA's and CA's for those triangulate. Like Jim said, not possible to distinguish at AncestryDNA hence you need to download your data (and upload to GEDmatch) and ask all your SM to do the same. You see how stupid their approach is? I find it the most useless 99 dollars I've ever spend. Andreas PS: don't tell me to transfer to FTDNA as I still can't do triangulation there without my matches help and those SM are most likely not transferring either to FTDNA! > On 16 Dec 2015, at 00:31, Jim Bartlett via <genealogy-dna@rootsweb.com> wrote: > > Mike > > AncestryDNA doesn't say explicitly (that I've seen), how the Shared Matches are determined, but it appears to be exactly the same as FTDNA ICW. I've analyzed a bunch of them, and "Shared Matches" is NOT Triangulation. Like ICW, some SMs will be on the same segment, but without the DNA data, AncestryDNA's SMs are much less helpful than FTDNA's ICW. There's just not much we can do with SM info. Maybe try to group them, but still nothing helpful as far as atDNA is concerned. A few people may find some genealogy groups, but those may or may not involve DNA. > > Jim - www.segmentology.org > >> On Dec 15, 2015, at 11:57 AM, Michael Fisher <m.j.fisher@btinternet.com> wrote: >> >> Jim >> >> How does this compare to AncestryDNA "shared matches" that DNAgedcom downloads as ICW ? >> (all my AncestryDNA kit have been imported into FTDNA and GEDMatch) >> >> Mike in a very damp Droitwich, England >> >>> On 15/12/2015 16:00, Jim Bartlett via wrote: >>> Jim >>> >>> The ICW algorithm does not include arDNA. It does not include genealogy. It only matches names between your Match list and someone else's Match list. >>> >>> Jim - www.segmentology.org > > > ------------------------------- > To unsubscribe from the list, please send an email to GENEALOGY-DNA-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message