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Let us suppose that you have the following two 4-dimensional word vectors for two words, w1 and w2, respectively:  w1 =(0.2, 0.1, 0.3, 0.4) and w2 = (0.3, 0, 0.2, 0.5) What is the cosine similarity between w1 and w2?Question 6Answera.0.948b.0c. 0.832d.0.5

Question

Let us suppose that you have the following two 4-dimensional word vectors for two words, w1 and w2, respectively:  w1 =(0.2, 0.1, 0.3, 0.4) and w2 = (0.3, 0, 0.2, 0.5) What is the cosine similarity between w1 and w2?Question 6Answera.0.948b.0c. 0.832d.0.5

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Solution

The cosine similarity between two vectors is calculated by taking the dot product of the vectors and dividing it by the product of the magnitudes of the vectors.

Step 1: Calculate the dot product of w1 and w2. Dot product = (0.20.3) + (0.10) + (0.30.2) + (0.40.5) = 0.06 + 0 + 0.06 + 0.2 = 0.32

Step 2: Calculate the magnitude of w1. Magnitude of w1 = sqrt((0.2)^2 + (0.1)^2 + (0.3)^2 + (0.4)^2) = sqrt(0.04 + 0.01 + 0.09 + 0.16) = sqrt(0.3)

Step 3: Calculate the magnitude of w2. Magnitude of w2 = sqrt((0.3)^2 + (0)^2 + (0.2)^2 + (0.5)^2) = sqrt(0.09 + 0 + 0.04 + 0.25) = sqrt(0.38)

Step 4: Divide the dot product by the product of the magnitudes. Cosine similarity = 0.32 / (sqrt(0.3) * sqrt(0.38)) = 0.32 / (0.5477 * 0.6164) = 0.32 / 0.3375 = 0.948

So, the cosine similarity between w1 and w2 is 0.948. Therefore, the answer is a. 0.948.

This problem has been solved

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