LASSO Regression
Definition
Least Absolute Shrinkage and Selection Operator: a regularised regression method that shrinks non-predictive coefficients toward zero, performing simultaneous feature selection and regression. Applied to GMM landmark coordinates in forensic sex and ancestry estimation to manage the high-dimensionality of the landmark dataset.
Related terms
- Agisoft Metashape
- Commercial photogrammetry software (Agisoft LLC, Saint Petersburg) widely used in forensic anthropology for 3D model production from image sets. Accuracy of approximately...
- COLMAP
- Open-source SfM photogrammetry software maintained by ETH Zurich, providing zero-cost 3D reconstruction from image sets. Used in under-resourced forensic laboratories in South...
- DBSML
- Detroit-Bone Sex/Maturity Logic: a logistic-regression-based classification system for sex estimation from cranial and postcranial linear measurements, developed at Wayne State University, providing...
- Explainability (ML Forensic)
- The capacity of a machine-learning model to articulate, in interpretable terms, the features driving its classification or estimation output. Required under Daubert,...
- Geomorph (R Package)
- An open-source R package (Adams and Otarola-Castillo 2013; actively maintained through 2024) implementing Procrustes superimposition, principal component analysis in shape space, multivariate...
- Micro-CT
- Computed tomography at voxel sizes of 10 to 100 micrometres, resolving individual trabeculae and bone microarchitecture invisible to clinical CT or surface...
- Procrustes Superimposition
- The statistical procedure in geometric morphometrics that removes non-shape variation (translation, rotation, scale) from a set of landmark coordinates, leaving only shape...
- Structure-from-Motion (SfM)
- A photogrammetric technique in which overlapping images from a drone or camera, processed by software, generate a three-dimensional point cloud and textured...
- Thin-Plate Spline (TPS)
- A mathematical warping function used in geometric morphometrics to visualise the shape difference between a reference specimen and a target, deforming a...
Explained in
- Emerging Methods: 3D Scanning and Geometric MorphometricsLeast Absolute Shrinkage and Selection Operator: a regularised regression method that shrinks non-predictive coefficients toward zero, performing simultaneous...