View source: R/utils-embedding-matrices.R
find_projection | R Documentation |
"Project" each word in a word embedding matrix of D
dimension along a
vector of D
dimensions, extracted from the same embedding space.
The vector can be a single word, or a concept vector obtained from
get_centroid()
, get_direction()
, or get_regions()
.
find_projection(wv, vec)
wv |
Matrix of word embedding vectors (a.k.a embedding model) with rows as words. |
vec |
Vector extracted from the embeddings |
All the vectors in the matrix A
are projected onto the a vector,
v
, to find the projection matrix, P
, defined as:
P = \frac{A \cdot v}{v \cdot v} * v
A new word embedding matrix, each row of which is parallel to vector.
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