Module util

Classes

VectorSpace
Abstract clusterer which takes tokens and maps them into a vector space.

_DendogramNode
Tree node of a dendogram.

Dendogram
Represents a dendogram, a tree with a specified branching order.

Functions

euclidean_distance(u, v)
Returns the euclidean distance between vectors u and v.

source code

cosine_distance(u, v)
Returns the cosine of the angle between vectors v and u.

source code

Function Details

Returns the euclidean distance between vectors u and v. This is equivalent to the length of the vector (u - v).

Returns the cosine of the angle between vectors v and u. This is equal to u.v / |u||v|.