TF-IDF scoring

Precision and recall

Precision = Relevant retrieved instances / All retrieved instances

Write the attention score formula before softmax: e_ij = a(s_i, h_j)

How do we know what's important in a sentence?

Batch normalization

Batch normalization formula: Y = (X - μ) / σ * γ + β

Normal distribution

Normal distribution PDF formula

BLEU

Ever wondered how computers know if a translation makes sense?

PageRank

PageRank formula: PR(A) = (1-d) + d Σ(PR(C)/L(C))