Fisher Kernel

The Fisher kernel is defined as

K(X_i, X_j) = U_{X_i}^T I^{-1} U_{X_j}

with I the Fisher information matrix.

Famous quotes containing the words fisher and/or kernel:

    “One ... aspect of the case for World War II is that while it was still a shooting affair it taught us survivors a great deal about daily living which is valuable to us now that it is, ethically at least, a question of cold weapons and hot words.”
    —M.F.K. Fisher (1908–1992)

    “After night’s thunder far away had rolled
    The fiery day had a kernel sweet of cold”
    —Edward Thomas (1878–1917)