Báo cáo khoa học: "Hierarchical Joint Learning: Improving Joint Parsing and Named Entity Recognition with Non-Jointly Labeled Data" potx

... lexi- cal resources. Named- entity recognition and classification (NERC) is the identification of proper names in text and their classification as different types of named entity (NE), e.g. persons, ... the encoding of words, e.g. capitalisation, and the probabilistic modelling of the recognition system. Named- entity recognition in Alembic (Vilain and Day, 1996) uses...

Ngày tải lên: 23/03/2014, 19:20

... approach. [Baseline-2] Joint without Hierarchy: Here we use simple linear-chain CRFs without exploit- ing the class hierarchy for the opinion recognition task. We use the tags shown in Table 1. Joint with Hierarchy: ... 48.6 Joint without Hierarchy (BASELINE2) 30.7 65.7 41.9 29.9 66.5 41.2 37.3 77.1 50.3 Joint with Hierarchy 31.8 67.1 43.1 31.9 66.6 43.1 40.4 76.2 52.8 Table 2:...

Ngày tải lên: 17/03/2014, 00:20

... and phrases and Japanese. In Web Intelligence, pages 110–116. Jiafeng Guo, Gu Xu, Xueqi Cheng, and Hang Li. 2009. Named entity recognition in query. In SIGIR, pages 267–274. Jun’ichi Kazama and ... Perkowitz, and Meliha Yetisgen-Yildiz. 2010. Annotating large email datasets for named entity recognition with mechani- cal turk. In NAACL HLT 2010 Workshop on Creating Spee...

Ngày tải lên: 23/03/2014, 16:20

... of journal articles with chemical structures and biomedi- cal ontology terms using Oscar, a program for chemical named entity recognition (NER). We describe how Oscar works and how it can been adapted ... shallow named- entity recogniser and does not per- form deeper parsing. Hence there is no analysis of the text above the level of the term, with the exception of acronym...

Ngày tải lên: 31/03/2014, 01:20

... Computational Linguistics Hierarchical Joint Learning: Improving Joint Parsing and Named Entity Recognition with Non-Jointly Labeled Data Jenny Rose Finkel and Christopher D. Manning Computer Science ... likelihood and partial derivatives. See (Finkel et al., 2008) for details. 4.3 Joint Model of Parsing and Named Entity Recognition Our base joint mod...

Ngày tải lên: 30/03/2014, 21:20

... alignment and consistency (Picker- ing and Garrod, 2004; Halliday and Hasan, 1976) on the one hand, and variation (to improve text quality and readability) on the other hand (Belz and Reiter, 2006; ... (Halliday and Hasan, 1976), and variation, which influence people’s assessment of discourse (Levelt and Kelter, 1982) and generated output (Belz and Reiter, 2006; Foster a...

Ngày tải lên: 07/03/2014, 22:20

... helices 2 and 3 (TPR1), 4 and 5 (TPR2), 6 and 7 (TPR3) and 12 and 13 (TPR4) contain the characteristic pattern of signature residues that coin- cides with helix-loop-helix lengths. Interhelix AB and AA¢Wpacking ... making hydrogen bonds with carboxylate groups of Glu235 and Glu270, and with the back bone amide of Val269. Phe165 and Phe268 face each other, flanking the t...

Ngày tải lên: 07/03/2014, 16:20

... associates a parse with a 173 score v θ (y), which is a linear function of the feature values f(y). That is, each feature f j is associated with a weight θ j , and the feature values and weights define ... the n-best parses using coarse-to-fine parsing The major difficulty in n-best parsing, compared to 1-best parsing, is dynamic programming. For exam- ple, n-best parsing is straig...

Ngày tải lên: 08/03/2014, 04:22

... described above, affect epitope recognition Table 1. Summary of p53 S15 phosphorylation status, K373 and K382 acetylation status, and immunoreactivity with PAb421 and PAb122 for the full-length ... sumoyla- tion and neddylation [5–7]. Of these modifications, phosphorylation and acetylation have been studied in greatest detail [8]. Phosphorylation occurs at multiple sites within t...

Ngày tải lên: 30/03/2014, 16:20

... repairs and false positives in both tests. The main points to be noted from Table 5 are that with syntax alone, the system is quite ac- curate in detecting repairs, and with syntax and semantics ... repairs and 176 contained false positives. The ap- proach was as follows: for each sentence, parsing was attempted. If parsing succeeded, the sentence was marked as a fals...

Ngày tải lên: 31/03/2014, 06:20