private double getRiskTransitionCost(HyperEdge originalEdge, List<HGNode> antVirtualItems, DPStateOracle dps){//note: transition_cost is already linearly interpolated
double riskTransitionCost = dps.bestDerivationLogP;
if(antVirtualItems!=null)
for(HGNode ant_it :antVirtualItems ){
RefinedNode it2 = (RefinedNode) ant_it;//TODO
riskTransitionCost -= ((DPStateOracle)it2.dpState).bestDerivationLogP;
}
return -riskTransitionCost;
}