UGC NET Computer Science Machine Learning Previous Year Questions (PYQs)
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Given that η refers to learning rate and xi refers to the i-th input to the neuron, which of the followings most suitably describes the weight updation rule of a Kohonen SOM? (where ‘j’ refers to the j-th neuron in the lattice)
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Solution
Explanation: The SOM (Self-Organizing Map) weight update formula is
w(new) = w(old) + η * (x − w(old))
which simplifies to (1 − η) * w(old) + η * x.
UGC NET Computer Science
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