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Example sentences for: eigen

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Second, because the random initialization commonly used in k-means clustering can have a profound impact on the results [ 15], we instead chose to initialize each clustering cycle by seeding prototype centroids with the eigen vectors identified by PCA of the respective dataset (see below).
We then compute the inner product (essentially the correlation) of each gene with the eigen gene, and discard ('shave off') a fraction of the genes having lowest (absolute) inner product.
Of the top k /3 eigen vectors, those to which no gene had a maximal Pearson correlation were eliminated (for k = 120, only one eigen vector was eliminated in each cycle).
Nonetheless, most of the eigen vectors diverged to different gene-expression patterns within 10-15 iterations.
The remaining eigen vectors were used as prototype centroids for that clustering cycle.