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In Preparation · 2026

SpeciesID: a bias-aware EM framework for quantitative species authentication in meat products

Abdul Malek, A.Z. et al. In preparation

Abstract

SpeciesID implements a bias-aware expectation-maximization algorithm for quantitative species authentication from amplicon sequencing, achieving 2.59 percentage points mean absolute error and perfect detection accuracy across 54 simulated binary mixtures with trace detection at 0.5% at 500 reads per marker. Validated on 174 real amplicon samples from two independent studies.

Figures

SpeciesID analytical pipeline overview
Fig 1

SpeciesID analytical pipeline overview

Binary mixture quantification accuracy
Fig 2

Binary mixture quantification accuracy

Validation on real amplicon datasets
Fig 3

Validation on real amplicon datasets

SpeciesID analytical pipeline overview

SpeciesID analytical pipeline overview

Binary mixture quantification accuracy

Binary mixture quantification accuracy

Validation on real amplicon datasets

Validation on real amplicon datasets