Sim_Li_2003
Sim_Li_2003(
dag,
terms,
distance = "longest_distances_via_LCA",
verbose = simona_opt$verbose
)
It is similar to the Sim_AlMubaid_2006 method, but uses a non-linear form:
= exp(0.2*d(a, b)) * atan(0.6*depth(c)) sim
where d(a, b)
can be the shortest distance or the longest distance via LCA.
Paper link: doi:10.1109/TKDE.2003.1209005 .
There is a parameter distance
which takes value of "longest_distances_via_LCA" (the default) or "shortest_distances_via_NCA":
term_sim(dag, terms, method = "Sim_Li_2003",
control = list(distance = "shortest_distances_via_NCA"))