Comparison of Methods to Annotate Named Entity Corpora
Comparison of Methods to Annotate Named Entity Corpora
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命名实体语料库标注方法比较
DOI:
10.1145/3218820
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Hiroyuki Shinnou
中科院分区:
文献类型:
--
作者:
Kanako Komiya;Masaya Suzuki;Tomoya Iwakura;Minoru Sasaki;Hiroyuki Shinnou
The authors compared two methods for annotating a corpus for the named entity (NE) recognition task using non-expert annotators: (i) revising the results of an existing NE recognizer and (ii) manually annotating the NEs completely. The annotation time, degree of agreement, and performance were evaluated based on the gold standard. Because there were two annotators for one text for each method, two performances were evaluated: the average performance of both annotators and the performance when at least one annotator is correct. The experiments reveal that semi-automatic annotation is faster, achieves better agreement, and performs better on average. However, they also indicate that sometimes, fully manual annotation should be used for some texts whose document types are substantially different from the training data document types. In addition, the machine learning experiments using semi-automatic and fully manually annotated corpora as training data indicate that the F-measures could be better for some texts when manual instead of semi-automatic annotation was used. Finally, experiments using the annotated corpora for training as additional corpora show that (i) the NE recognition performance does not always correspond to the performance of the NE tag annotation and (ii) the system trained with the manually annotated corpus outperforms the system trained with the semi-automatically annotated corpus with respect to newswires, even though the existing NE recognizer was mainly trained with newswires.
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DOI:
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发表时间:
2015
期刊:
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影响因子:
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作者:
Masaaki Ichihara;Kanako Komiya;Tomoya Iwakura;M. Yamazaki
通讯作者:
M. Yamazaki
DOI:
10.18653/v1/w16-1316
发表时间:
2016
期刊:
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影响因子:
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作者:
Yuichiro Machida;Daisuke Kawahara;S. Kurohashi;Manabu Sassano
通讯作者:
Manabu Sassano
DOI:
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发表时间:
2010
期刊:
Law
影响因子:
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作者:
Lonneke van der Plas;T. Samardžić;Paola Merlo
通讯作者:
Paola Merlo
DOI:
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发表时间:
2012
期刊:
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影响因子:
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作者:
Masatsugu Hangyo;Daisuke Kawahara;S. Kurohashi
通讯作者:
S. Kurohashi
DOI:
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发表时间:
2008
期刊:
--
影响因子:
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作者:
Ryohei Sasano;S. Kurohashi
通讯作者:
Ryohei Sasano;S. Kurohashi