inference interface
inference interface
tuple pair: (dicId, Vector), in which 'docId' is unique recommended storage level: StorageLevel.MEMORY_AND_DISK
overall iterations
previous burnIn iters results will discard
libsvm when isTransposed
is false, the format of each line:
termId \grave{topicId}:counter \grave{topicId}:counter...,
in which \grave{topicId} = topicId + 1
otherwise:
topicId \grave{termId}:counter \grave{termId}:counter...,
in which \grave{termId}= termId + 1
save as whether one HDFS file or an directory