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Endogamy: I. The Knowledge Graph
Duplicate ancestors, unions and the coefficient of inbreeding
David A Stumpf, MD, PhD and Michelle Bray Wilson
Nov 29, 2022
Graph Analytic Resources
This page will be updated. You might want to bookmark it! Graphs for Genealogists is a set of tools for genetic genealogists. It utilizes...
David A Stumpf, MD, PhD
Nov 21, 2022
The Field of Dreams: Ancestor Avatars
Your ancestor Avatar DNA is available for genetic genealogy analytics. Discover new matches hidden in their branch of your family tree.
David A Stumpf, MD, PhD
Sep 14, 2022
Monophyletic Segments
The rare set of segments available for research on a specific family line.
David A Stumpf, MD, PhD
Jul 27, 2022
David A Stumpf, MD, PhD
Jul 11, 2022
David A Stumpf, MD, PhD
Oct 21, 2021
David A Stumpf, MD, PhD
Sep 16, 2021
David A Stumpf, MD, PhD
Sep 20, 2020
Y-DNA Haplogroups: Navigation using graph database methods
Y-DNA Haplogroups I manage a number of Y-DNA surname projects at FTDNA. One of the challenges is determining whether men's single...
David A Stumpf, MD, PhD
Dec 30, 2017
Neo4j Technical Issues
Why this post? This post is for geeks who want to know what's under the hood in a Neo4j database. I consider myself a limited expert, so...
David A Stumpf, MD, PhD
Dec 30, 2017
The Slump Surname Project
Slump surname project The Slump Y-DNA surname project was started at Family Tree DNA (FTDNA) in Dec 2017. The SLUMP surname was adopted...
David A Stumpf, MD, PhD
Dec 26, 2017
So-called terminal SNP
The term "terminal SNP" is an oxymoron in need of a new, better term. Preferably one with a catchy acronym to encourage adoption. But...
David A Stumpf, MD, PhD
Dec 19, 2017
The van der Heide Silver Spoon
History of the Silver Spoon My Oma (paternal grandmother) was from the patrician Teves family in Friesland. She immigrated to the United...
David A Stumpf, MD, PhD
Dec 12, 2017
Y-DNA Surname Projects
Genetic genealogy projects come in several flavors: surname, geographic, haplogroup, etc. Here we will focus on projects that involve a...
David A Stumpf, MD, PhD
Nov 30, 2017
