/**
* 构造并初始化网格
*
* @param carrier 样本实例
* @return 推理网格
*/
protected Node[][] initialLattice(Instance carrier) {
int[][] data = (int[][]) carrier.getData();
int length = carrier.length();
Node[][] lattice = new Node[length][];
for (int l = 0; l < length; l++) {
lattice[l] = new Node[ysize];
for (int c = 0; c < ysize; c++) {
lattice[l][c] = new Node(ysize);
for (int i = 0; i < orders.length; i++) {
if (data[l][i] == -1 || data[l][i] >= weights.length) // TODO: xpqiu 2013.2.1
continue;
if (orders[i] == 0) {
lattice[l][c].score += weights[data[l][i] + c];
} else if (orders[i] == 1) {
int offset = c;
for (int p = 0; p < ysize; p++) {
// weights对应trans(c,p)的按行展开
lattice[l][c].trans[p] += weights[data[l][i] + offset];
offset += ysize;
}
}
}
}
}
return lattice;
}
