Finding relatives in a database

A non-transitory computer-readable medium, having stored thereon program instructions that, upon execution by a computing device, cause the computing device to perform operations comprising:

• determining identical-by-descent (IBD) segments of deoxyribonucleic acid (DNA) of a first user and a second user based on common patterns of nucleotides between the first user and the second user, wherein a relative finder database comprises DNA sequence information of a plurality of users, including that of the first user and the second user;
• determining, from the IBD segments, an amount of the DNA shared by the first user and the second user;
• estimating a degree of a relative relationship between the first user and the second user based on empirical distribution patterns of DNA shared by relatives of various degrees within a population;
• and
• providing, for display on a client device of the first user or the second user, a representation of a graphical user interface indicating the degree of the relative relationship between the first user and the second user.

A computing system comprising:

• one or more processors;
• and
• memory containing instructions that, when executed by the one or more processors, cause the computing system to perform operations comprising:
• determining identical-by-descent (IBD) segments of deoxyribonucleic acid (DNA) of a first user and a second user based on common patterns of nucleotides between the first user and the second user, wherein a relative finder database comprises DNA sequence information of a plurality of users, including that of the first user and the second user;
• determining, from the IBD segments, an amount of the DNA shared by the first user and the second user;
• estimating a degree of a relative relationship between the first user and the second user based on empirical distribution patterns of DNA shared by relatives of various degrees within a population;
• and
• providing, for display on a client device of the first user or the second user, a representation of a graphical user interface indicating the degree of the relative relationship between the first user and the second user.