Research Article

Incorporating Topic Assignment Constraint and Topic Correlation Limitation into Clinical Goal Discovering for Clinical Pathway Mining

Table 2

Meanings of the notations.

NotationMeaning

The set of clinical days
The set of clinical activities
The set of topics assigned to
The number of clinical days and topics
The number of unique clinical activities
The number of clinical activities in dth clinical day
The number of clinical activities that are assigned
topic
The number of groups (unique clinical activities)
in dth clinical day
The number of clinical activities in gth group in
dth clinical day
The ith clinical activities in dth clinical day
The topic for
The clinical activities of gth group in dth clinical day
The jth clinical activity in gth group in dth clinical day
The topic for
, the set of topics for gth group in dth
clinical day
The number of clinical activities that are assigned
topic in dth clinical day
The number of clinical activities with value and topic
The number of clinical activities that are assigned topic in dth clinical day, except gth group in dth clinical day
The number of clinical activities with value and
topic , except gth group in dth clinical day
Dirichlet prior vector
Multinomial distribution over clinical activities
and topics
Multinomial distribution over clinical activities for
topic
Multinomial distribution over topics for dth clinical day