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Named Entity Recognition

Authors: Cícero Nogueira dos Santos; Ruy Luiz Milidiú;

Named Entity Recognition

Abstract

This chapter presents the application of ETL to language independent named entity recognition (NER). The NER task consists of finding all proper nouns in a text and classifying them among several given categories of interest. We apply ETL and ETL Committee to three different corpora in three different languages: Portuguese, Spanish and Dutch. ETL system achieves state-of-the-art competitive results for the three corpora. Moreover, ETL Committee significantly improves the ETL results for the three corpora. This chapter is organized as follows. In Sect. 7.1, we describe the NER task and the selected corpora. In Sect. 7.2, we detail some modeling configurations used in our NER system. In Sect. 7.3, we show some configurations used in the machine learning algorithms. Section 7.4 presents the application of ETL for the HAREM Corpus. In Sect. 7.5, we present the application of ETL for the SPA CoNLL-2002. In Sect. 7.6, we detail the application of ETL for the DUT CoNLL-2002. Finally, Sect. 7.7 presents some concluding remarks.

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Powered by OpenAIRE graph
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
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