INCREMENTAL KNOWLEDGE ACQUISITION FOR NAMED ENTITIES RECOGNITION

... of incorrect named entities. There are 308 incorrect named entities compared to 175 missing named entities. In 308 incorrect named entities, there are a major of candidate named entities with ... ‘orth’ for which five values are defined: 27 Chapter 5 CONCLUSION AND FUTURE WORKS 5.1. Conclusions In this thesis, we have presented our incremental knowledge acquisition f...

Ngày tải lên: 14/06/2014, 09:27

... gazetteers for organization name recognition. In IPSJ SIG Technical Report 2007-NL-182 (in Japanese). J. Kazama and K. Torisawa. 2007. Exploiting Wikipedia as external knowledge for named entity recognition. In ... which is also useful for NER, can further improve the accuracy in several cases. 1 Introduction Gazetteers, or entity dictionaries, are important for performing nam...

Ngày tải lên: 20/02/2014, 09:20

... the current entity, we achieve this by embedding the informa- tion on preceding labels for named entities into the labels for non -named entities. 2 CRFs and Semi-CRFs CRFs are undirected graphical ... the overall performance. We next evaluate the effect of filtering, chunk information and non-local information on final performance. Table 6 shows the performance re- sult for the r...

Ngày tải lên: 20/02/2014, 12:20

Ngày tải lên: 09/03/2014, 01:20

... is considered most informative for current model. 2.1.2 Informativeness Measure for Named Entity 12 * (,) (,) Sim SimNENE MaxNM = 2.2.3 Representativeness Measure for Named Entity Given ... Therefore, all of the measures we propose for ac- tive learning should be applied to the machine- annotated named entities and we have to further study how to extend the measures...

Ngày tải lên: 31/03/2014, 03:20

... language is available for download (download.wikimedia.org) in a text format suitable for inclusion in a database. For the remainder of this paper, we refer to this format. 1 4.3 Ukrainian ... resources exist, is particularly useful for less commonly taught languages. We show how the Wikipedia format can be used to identify possible named entities and discuss in detail th...

Ngày tải lên: 20/02/2014, 09:20

... tweets. However, named entity normalization (NEN) for tweets, which transforms named entities mentioned in tweets to their unambiguous canonical forms, has not been well studied. Owing to the informal ... frequency information for names in a collection; Cucerzan (2007) demostrates a large- scale system for the recognition and semantic dis- ambiguation of named entities based...

Ngày tải lên: 07/03/2014, 18:20

... Association for Computational Linguistics, pages 73–76, Avignon, France, April 23 - 27 2012. c 2012 Association for Computational Linguistics NERD: A Framework for Unifying Named Entity Recognition and ... 09.2.93.0966, “Collaborative Annotation for Video Accessibility” (ACAV). References Rizzo G. and Troncy R. 2011. NERD: A Framework for Evaluating Named Entity Recognition...

Ngày tải lên: 08/03/2014, 21:20

... of AdaBoost–based binary classifiers for recognizing the Named Entities in running text. See (Carreras et al., 2002) for details. The NE recognition task is performed as a se- quence tagging problem ... Task: Language-Independent Named Entity Recognition. In Proceedings of CoNLL-2002, pages 155-158. Taipei, Taiwan. E. Tjong Kim Sang. 2002b. Memory-Based Named Entity Recognit...

Ngày tải lên: 17/03/2014, 22:20

... entity popularity knowledge can provide a priori information to the possible referent entities of a name mention. For example, without any other information, the popularity knowledge can tell ... leverage heterogenous entity knowledge (including popularity knowledge, name knowledge and context knowledge) for the entity linking task; 2) By modeling the entity knowledge...

Ngày tải lên: 23/03/2014, 16:20