IC_Zhou_2008
IC_Zhou_2008(
dag,
use_cache = simona_opt$use_cache,
verbose = simona_opt$verbose
)
It is a correction of IC_Seco_2004 which considers the depth of a term in the DAG. The information content is calculated as:
= 0.5*IC_Seco + 0.5*log(depth)/log(max_depth) IC
where depth
is the depth of term t
in the DAG, defined as the maximal distance from root. max_depth
is the largest depth in the DAG.
So IC is composed with two parts: the numbers of offspring terms and positions in the DAG.
Paper link: doi:10.1109/FGCNS.2008.16 .