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A New SOM-based Visualization Technique for DNA Microarray Data

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4 Author(s)
Patra, J.C. ; Nanyang Technol. Univ., Singapore ; Ee Luang Ang ; Meher, P.K. ; Qin Zhen

We present a new side-intensity modulated self-organizing map (SIM-SOM) for improved visualization of multidimensional data. We have utilized DNA microarray dataset [15] for this purpose. A Gene Signature which contains a set of most informative genes was extracted using the discrimination factor method [16]. Next, the reduced dimensional microarray data are visualized using the proposed SIM-SOM. In addition to providing clear and unambiguous cluster boundary, the SIM-SOM can help in discovering new subtypes of cancer.

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Neural Networks, 2006. IJCNN '06. International Joint Conference on

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