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Reconceptualizing the classification of PNAS articles.

ABSTRACT: PNAS article classification is rooted in long-standing disciplinary divisions that do not necessarily reflect the structure of modern scientific research. We reevaluate that structure using latent pattern models from statistical machine learning, also known as mixed-membership models, that identify semantic structure in co-occurrence of words in the abstracts and references. Our findings suggest that the latent dimensionality of patterns underlying PNAS research articles in the Biological Sciences is only slightly larger than the number of categories currently in use, but it differs substantially in the content of the categories. Further, the number of articles that are listed under multiple categories is only a small fraction of what it should be. These findings together with the sensitivity analyses suggest ways to reconceptualize the organization of papers published in PNAS.

SUBMITTER: Airoldi EM

PROVIDER: S-EPMC3000298 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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Reconceptualizing the classification of PNAS articles.

Airoldi Edoardo M EM Erosheva Elena A EA Fienberg Stephen E SE Joutard Cyrille C Love Tanzy T Shringarpure Suyash S

Proceedings of the National Academy of Sciences of the United States of America 20101115 49

PNAS article classification is rooted in long-standing disciplinary divisions that do not necessarily reflect the structure of modern scientific research. We reevaluate that structure using latent pattern models from statistical machine learning, also known as mixed-membership models, that identify semantic structure in co-occurrence of words in the abstracts and references. Our findings suggest that the latent dimensionality of patterns underlying PNAS research articles in the Biological Scienc ...[more]

PMID: 21078953

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Reconceptualizing the classification of PNAS articles.

Publications

Reconceptualizing the classification of PNAS articles.

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