segment2subtask: Step 3 of Subtask Analysis: Grouping Segments

In xytangtang/ProcData: Process Data Analysis

Description

segment2subtask clustering action sequence segments according to their action frequency profiles. Each cluster forms a subtask.

Usage

segment2subtask(action_seqs, seg_seqs, n_subtask, actions,
  verbose = FALSE, ...)

Arguments

action_seqs	a list of action sequences
seg_seqs	a list of segment locations
n_subtask	the desired number of subtasks or a vector of candidate number of subtasks
actions	a set of actions
verbose	logical. If TRUE, training progress is printed.
...	additional arguments passed to kmeans

Value

a list containing

n_subtask	the number of subtasks
subtasks	a vector of subtasks
subtask_seqs	a list of subtask sequences
tot.withinss	a vector of total within cluster sum of squares
relative_cluster_profiles	a n_subtask by length(actions) matrix. Each row gives the action frequency profile of each subtask relative to the overall action frequency profile

References

Wang, Z., Tang, X., Liu, J., and Ying, Z. (2020) Subtask analysis of process data through a predictive model. https://arxiv.org/abs/2009.00717

See Also

action2entropy and segment2subtask for steps 1 and 3 of the subtask analysis procedure; subtask_analysis for the complete procedure.

xytangtang/ProcData documentation built on May 30, 2021, 1:21 a.m.