📖 Glossary

All definitions of terms used on Look Like Me — AI, genetics, biometrics, GDPR. 14 entries.

ArcFace →

State-of-the-art deep learning model for generating facial embeddings.
Biometrics →

Measurement and analysis of unique biological characteristics of an individual (face, fingerprint, iris).
Cosine similarity →

Mathematical metric measuring the angle between two vectors, used to compare embeddings.
Deep learning →

Branch of AI based on multi-layer artificial neural networks.
Dominant gene →

Allele that expresses visually even when transmitted by only one of the two parents.
Epigenetics →

Study of heritable modifications that influence gene expression without altering the sequence.
Facial embedding →

Numerical representation of a face as a vector, computed by a neural network.
Genotype →

Set of inherited genes of an individual, independent of their visible expression.
Heritability →

Proportion of variation of a trait in a population that is explained by genes (vs environment).
Phenotype →

Set of observable characteristics of an individual, resulting from gene-environment interaction.
Recessive gene →

Allele that expresses visually only if both parents transmit it.
Similarity score →

Quantitative measure of resemblance between two faces, usually between 0 and 100%.
Skipped generation (resemblance) →

Phenomenon where a visible trait skips a generation, due to recessive genes.
YOLO (detector) →

Real-time object detection model, used upstream of face recognition.