org.apache.mahout.cf.taste.impl.similarity.UncenteredCosineSimilarity only computes the cosine distance between those components of the vectors where both vectors have a value greater zero.
This is inconsistent with the definition of the cosine (correct me if I'm wrong) and is inconsistent with the distributed cosine similarity computation.
|Status||Resolved [ 5 ]||Closed [ 6 ]|
|Status||Open [ 1 ]||Resolved [ 5 ]|
|Assignee||Sean Owen [ srowen ]|
|Fix Version/s||0.4 [ 12314396 ]|
|Resolution||Fixed [ 1 ]|
|Issue Type||Bug [ 1 ]||Improvement [ 4 ]|
|Priority||Major [ 3 ]||Minor [ 4 ]|