### 3.4.6.2: Cosine Measure

The cosine
measure is an attempt to avoid the problems of the inner
productIt takes values
between *-1* and *1* . It is insensitive to
the length of the vectors and can be
interpreted as the inner product of the normalized vectors

and
documents are most similar if their vectors have
the same directions

© 1998 / HTML-Version 17. 11. 1998: R. Ferber