AutoTree

AutoTree identifies common ancestors and reconstructs genealogical trees based on the trees of DNA matches from AutoCluster clusters. AutoTree works for persons with unknown parentage to assist in identifying their birth families (for instance adoptees or donor-conceived persons).

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AutoTree concepts

AutoCluster organizes your DNA matches into shared match clusters that likely represent branches of your family. Everyone in a cluster will likely be on the same ancestral line, although the MRCA between any of the matches and between you and any match may vary. The generational level of the clusters may vary as well. One cluster may be your paternal grandmother's branch, while another may be your paternal grandfather's father's branch. By comparing the trees from the members of a certain cluster, we can identify ancestors that are common among those trees. First, we collect the surnames that are present in the trees and create a network using the similarity between surnames. Next, we perform clustering on this network to identify clusters of similar surnames. A similar clustering is performed based on a network using the first names of members of each surname cluster. Our last clustering uses the birth and death years of members of a cluster to find similar persons. As a consequence, initially large clusters (based on the surnames) are divided up into smaller clusters using the first name and birth/death year clustering.

AutoTree concepts

AutoCluster organizes your DNA matches into shared match clusters that likely represent branches of your family. Everyone in a cluster will likely be on the same ancestral line, although the MRCA between any of the matches and between you and any match may vary. The generational level of the clusters may vary as well. One cluster may be your paternal grandmother's branch, while another may be your paternal grandfather's father's branch. By comparing the trees from the members of a certain cluster, we can identify ancestors that are common among those trees. First, we collect the surnames that are present in the trees and create a network using the similarity between surnames. Next, we perform clustering on this network to identify clusters of similar surnames. A similar clustering is performed based on a network using the first names of members of each surname cluster. Our last clustering uses the birth and death years of members of a cluster to find similar persons. As a consequence, initially large clusters (based on the surnames) are divided up into smaller clusters using the first name and birth/death year clustering.

Common ancestors projected on your own ancestry

If a tree is linked to the tested profile, a visualization of common ancestors superimposed on your ancestors is created.

Common ancestors projected on your own ancestry

If a tree is linked to the tested profile, a visualization of common ancestors superimposed on your ancestors is created.

Available for various generations

This visualization is provided for several generations of the ancestral tree.

Available for various generations

This visualization is provided for several generations of the ancestral tree.

Investigate DNA matches linked to a specific ancestor

The number of DNA matches that share a common ancestor with your tree is displayed in the green clickable badge. After clicking on such a link, all DNA matches that have been predicted to be linked to this particular ancestor are displayed (for instance descendants for ancestor Phoebe Lee 1815-1877). Also, the cluster membership information of the linked DNA matches is also visualized in the orange badge. Moreover, all generated trees are available in the GEDCOM format. This allows you to load the subsequent tree in other editors (for instance on Ancestry) and refine or extend the trees from there.

Investigate DNA matches linked to a specific ancestor

The number of DNA matches that share a common ancestor with your tree is displayed in the green clickable badge. After clicking on such a link, all DNA matches that have been predicted to be linked to this particular ancestor are displayed (for instance descendants for ancestor Phoebe Lee 1815-1877). Also, the cluster membership information of the linked DNA matches is also visualized in the orange badge. Moreover, all generated trees are available in the GEDCOM format. This allows you to load the subsequent tree in other editors (for instance on Ancestry) and refine or extend the trees from there.

Common ancestors visualized within AutoCluster chart

Common ancestors that are identified between DNA matches are also visualized in the AutoCluster chart using Christmas trees. A mouse overlay will show which common ancestor has been identified.

Common ancestors visualized within AutoCluster chart

Common ancestors that are identified between DNA matches are also visualized in the AutoCluster chart using Christmas trees. A mouse overlay will show which common ancestor has been identified.

AutoTree overview

The overview of AutoTree analysis is displayed in the main AutoCluster HTML file in a table. For each AutoCluster cluster, the number of common ancestors, common locations (for two distances) and common surnames are shown in the main AutoCluster HTML file. The fields of the tree, common ancestor and common location are clickable and will show a page with more detailed information.

AutoTree overview

The overview of AutoTree analysis is displayed in the main AutoCluster HTML file in a table. For each AutoCluster cluster, the number of common ancestors, common locations (for two distances) and common surnames are shown in the main AutoCluster HTML file. The fields of the tree, common ancestor and common location are clickable and will show a page with more detailed information.

AutoTree results in Excel file

The complete list of common ancestor clusters with information regarding the underlying tree persons, their spouses, descendants, and linked DNA matches is available in the separate common ancestors' tables (as well as an Excel file).

AutoTree results in Excel file

The complete list of common ancestor clusters with information regarding the underlying tree persons, their spouses, descendants, and linked DNA matches is available in the separate common ancestors' tables (as well as an Excel file).

AutoTree common location analysis

Using the birth location information from tree persons, we calculate location clusters using a minimum location distance. These clusters are available using the common location table which contains the location, linked tree, linked DNA match and the tree persons that link to this location.

AutoTree common location analysis

Using the birth location information from tree persons, we calculate location clusters using a minimum location distance. These clusters are available using the common location table which contains the location, linked tree, linked DNA match and the tree persons that link to this location.

How to invoke an AutoTree analysis

To invoke the AutoTree analysis, go to the websites view on our member's page and select the AutoTree for the profile of interest:

How to invoke an AutoTree analysis

To invoke the AutoTree analysis, go to the websites view on our member's page and select the AutoTree for the profile of interest:

Register now!