Summary of the paper
| Title | Integrating NLP Tools in a Distributed Environment: A Case Study Chaining a Tagger with a Dependency Parser |
|---|---|
| Authors | Francesco Rubino, Francesca Frontini and Valeria Quochi |
| Abstract | The present paper tackles the issue of PoS tag conversion within the framework of a distributed web service platform for the automatic creation of language resources. PoS tagging is now considered a """"solved problem""""; yet, because of the differences in the tagsets, interchange of the various PoS tagger available is still hampered. In this paper we describe the implementation of a pos-tagged-corpus converter, which is needed for chaining together in a workflow the Freeling PoS tagger for Italian and the DESR dependency parser, given that these two tools have been developed independently. The conversion problems experienced during the implementation, related to the properties of the different tagsets and of tagset conversion in general, are discussed together with the heuristics implemented in the attempt to solve them. Finally, the converter is evaluated by assessing the impact of conversion on the performance of the dependency parser. From this we learn that in most cases parsing errors are due to actual tagging errors, and not to conversion itself. Besides, information on accuracy loss is an important feature in a distributed environment of (NLP) services, where users need to decide which services best suit their needs. |
| Topics | Part of speech tagging, Parsing, LR Infrastructures and Architectures |
Full paper  |
Integrating NLP Tools in a Distributed Environment: A Case Study Chaining a Tagger with a Dependency Parser |
| Bibtex | @InProceedings{RUBINO12.726, author = {Francesco Rubino and Francesca Frontini and Valeria Quochi}, title = {Integrating NLP Tools in a Distributed Environment: A Case Study Chaining a Tagger with a Dependency Parser}, booktitle = {Proceedings of the Eight International Conference on Language Resources and Evaluation (LREC'12)}, year = {2012}, month = {may}, date = {23-25}, address = {Istanbul, Turkey}, editor = {Nicoletta Calzolari (Conference Chair) and Khalid Choukri and Thierry Declerck and Mehmet Uğur Doğan and Bente Maegaard and Joseph Mariani and Asuncion Moreno and Jan Odijk and Stelios Piperidis}, publisher = {European Language Resources Association (ELRA)}, isbn = {978-2-9517408-7-7}, language = {english} } |