Phrase Chunking Algorithm

A Phrase Chunking Algorithm is a Shallow Parsing Algorithm that is also a phrase classification algorithm and can be implemented by phrase chunking system (to solve a phrase chunking task).

• Context:
  • It can range from being a Heuristic Phrase Chunking Algorithm to being a Data-Driven Phrase Chunking Algorithm, such as a supervised phrase chunking algorithm.
• Example(s):
  • a Shallow Parsing with Conditional Random Fields Algorithm (Sha & Pereira, 2003a).
  • …
• Counter-Example(s):
  • a Syntactic Parsing Algorithm.
  • a Semantic Role Labeling Algorithm.
• See: CRFpp System.

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References

2005

• (Ando & Zhang, 2005) ⇒ RK Ando, T Zhang, 2005. “A High-performance semi-supervised learning method for text chunking."

2003

• (Sha & Pereira, 2003a) ⇒ Fei Sha, and Fernando Pereira. (2003). “Shallow Parsing with Conditional Random Fields.” In: Proceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology (HLT-NAACL 2003). doi:10.3115/1073445.1073473

2001

• (Kudo & Matsumoto, 2001) ⇒ Taku Kudo, and Yuji Matsumoto. (2001). “Chunking with Support Vector Machines.” In: Proceedings of NAACL Conference (NAACL 2001).
  • It had achieved the highest performance by 2002 on the RM95Chunking Benchmark Task.
    • P=94.15%, R=94.29%, F=94.22

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