Table 1 Word-based N-gram feature template
From: Data and knowledge-driven named entity recognition for cyber security
Type | Feature template |
|---|---|
2-gram | xi−1xi,xixi+1 |
3-gram | xi−2xi−1xi,xixi+1xi+2 |
4-gram | xi−3xi−2xi−1xi,xixi+1xi+2xi+3 |
5-gram | xi−4xi−3xi−2xi−1xi,xixi+1xi+2xi+3xi+4 |