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Table 1 Similarity scores for blind clay pipe 1 (BCP1) smoked with an unknown plant sample

From: Utilization of a natural language processing-based approach to determine the composition of artifact residues

 

Nta

Ngl

Nat

AmSp

Nob

Similarity scores

0.0370

0.0288

0.0233

0.0186

0.0168

  1. Clay pipes experimentally smoked with a single, known plant species or AmSp were individually compared to BCP1. Only the top five scores were included in the table. Nta is the most likely candidate smoked in BCP1. Nat, Nicotiana attenuata; Ngl, Nicotiana glauca; Nob, Nicotiana obtusifolia; Nta, Nicotiana tabacum; and AmSp, American Spirit