Louis Kessler’s Behold Blog The Behold User Forum
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182.
Chess and Artificial Intelligence: The Future Changed Today - Blog comment by geneatech - 6 Dec 2017
I'm sure you know what Stephen Hawking has said about AI, but it bears repeating: “Computers can, in theory, emulate human intelligence, and exceed it. Success in creating effective AI, could be the biggest event in the history of our civilization. Or the worst. We just don't know. So we cannot know if we ...
183.
FTDNA’s 13th IGG Conference Lab Tour - Blog comment by heyjude0701 - 14 Nov 2017
Thanks so much for your comments on the FTDNA conference! I wasn't able to attend this year, and so I really appreciate your summaries about the events each day. wish I could have been there to network.
184.
Revisiting Speed and Balding - Blog comment by lkessler - 9 Nov 2017
Thanks, Debbie. I am now working with the help of your thoughts as well as those of Andrew Millard to try to statistically represent what Speed and Balding have simulated so as to better understand what their results represent. The constrained population is one thing (similar to a small version of Iceland over ...
185.
Revisiting Speed and Balding - Blog comment by debbiek - 9 Nov 2017
If you have a stable population over 50 generations then you do get extreme pedigree collapse. This is pretty much what has happened throughout human history with the exception of the last 300 years: https://en.wikipedia.org/wiki/World_population_estimates All humans are highly endogamous. It's just a question ...
186.
Revisiting Speed and Balding - Blog comment by lkessler - 8 Nov 2017
Thank you Debbie for your analysis, but I'm still not convinced.
You were correct on Facebook to say that the match filter would not affect results above 9 cM. So there must be some other reason why Speed and Balding give a greater than 20% chance that shared segments from 30 Mb to 40 Mb are from > 20 ...
187.
Revisiting Speed and Balding - Blog comment by debbiek - 8 Nov 2017
Can I also suggest that people have a read of the comments in the ISOGG group on Facebook in the discussion about this blog post.
https://www.facebook.com/groups/isogg/permalink/10156092253692922/
In particular I recommend reading the comments from Dr Andrew Millard from the University of Durham. He has ...
188.
Revisiting Speed and Balding - Blog comment by debbiek - 8 Nov 2017
Louis
It makes no difference whether one is studying diseases or detecting DNA relatives. It's still necessary to identify related people in the database.
The reason the testing companies filter small segments under 6 cMs or 7 cMs is not to exclude small segments from distant generations but for the very ...
189.
Revisiting Speed and Balding - Blog comment by lkessler - 8 Nov 2017
Doug, (Professor Speed, Dr. Speed?)
Thank you for your thorough response to my post. If I understand your explanation correctly, you are doing everything exactly the way it should be done. The one thing you don't mention is anything about filtering for only people who would show up in a person's DNA match ...
190.
Revisiting Speed and Balding - Blog comment by lkessler - 8 Nov 2017
Jim,
Thank you very much for your assessment. I too think that most of my segment matches (the ones that are valid) between 5 and 20 cM must be between 6 and 12 generations back since I have yet to identify any of them. But that's what endogamy with just a 5 generation genealogy does.
I'm looking very ...
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Chess and Artificial Intelligence: The Future Changed Today - Blog comment by lkessler - 6 Dec 2017