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    Extracting Unrecognized Gene Relationships From the Biomedical Literature via Matrix Factorizations Using a Priori Knowledge of Gene Relationships

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    GT-CSE-06-17.pdf (103.6Kb)
    Date
    2006
    Author
    Kim, Hyunsoo
    Park, Haesun
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    Abstract
    The construction of literature-based networks of gene-gene interactions is one of the most important applications of text mining in bioinformatics. Extracting potential gene relationships from the biomedical literature may be helpful in building biological hypotheses that can be explored further experimentally. In this paper, we explore the utility of singular value decomposition (SVD) and nonnegative matrix factorization (NMF) to extract unrecognized gene relationships from the biomedical literature by taking advantage of known gene relationships. We introduce a way to incorporate a priori knowledge of gene relationships into LSI/SVD and NMF. In addition, we propose a gene retrieval method based on NMF (GR/NMF), which shows comparable performance with latent semantic indexing based on SVD.
    URI
    http://hdl.handle.net/1853/14444
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    • College of Computing Technical Reports [506]
    • School of Computational Science and Engineering Technical Reports [37]

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