public void AddEos()
{
var eosNode = new ViterbiNode(-1, EOS, 0, 0, 0, Dimension - 1, ViterbiNode.NodeType.Known);
AddNode(eosNode, Dimension - 1, 0);
}
public void AddBos()
{
var bosNode = new ViterbiNode(-1, BOS, 0, 0, 0, -1, ViterbiNode.NodeType.Known);
AddNode(bosNode, 0, 1);
}
string GetNodeId(ViterbiNode node)
{
return(node.GetHashCode().ToString());
}
int GetCost(ViterbiNode from, ViterbiNode to)
{
return(Costs[from.LeftId, to.RightId]);
}
/// <summary>
/// Check whether a candidate for a glue node is acceptable.
/// The candidate should be as short as possible, but long enough to overlap with the inserted user entry
/// </summary>
/// <param name="targetLength"></param>
/// <param name="glueBase"></param>
/// <param name="candidate"></param>
/// <returns></returns>
bool IsAcceptableCandidate(int targetLength, ViterbiNode glueBase, ViterbiNode candidate)
{
return((glueBase == null || candidate.Surface.Length < glueBase.Surface.Length) &&
candidate.Surface.Length >= targetLength);
}
