Báo cáo khoa học: "A Graph-based Cross-lingual Projection Approach for Weakly Supervised Relation Extraction" pptx

... Association for Computational Linguistics, pages 48–53, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics A Graph-based Cross-lingual Projection Approach for Weakly ... entity candidates; we call this action direct projection. In this paper, we propose a graph-based projec- tion approach for weakly supervised relation extr...

Ngày tải lên: 23/03/2014, 14:20

... in Chinese relation extraction drives us to investigate how to find an approach that is particularly appropriate for Chinese. 3 A Chinese Relation Extraction Model Due to the aforementioned ... mechanisms based on relation hierarchy and co-reference information etc. The approach is effective when evaluated on the ACE 2005 Chinese data set. 1 Introduction Relation extrac...

Ngày tải lên: 20/02/2014, 09:20

... Approach for Written Languages with Word Boundary Markers Han-Cheol Cho † , Do-Gil Lee § , Jung-Tae Lee § , Pontus Stenetorp † , Jun’ichi Tsujii † and Hae-Chang Rim § † Graduate School of Information ... spacing errors that require correction before further process- ing may take place. For the Korean lan- guage, many researchers have adopted a traditional WS approach, which eliminates...

Ngày tải lên: 17/03/2014, 02:20

... clues from the rich context infor- mation. 3 Model Training of CBSM and CBTM 3.1 The acquisition of training instances CBSM and CBTM are trained by ME approach for the binary classification, where ... features for ME training ME approach has the merit of easily combining different features to predict the probability of each class. We incorporate into the ME based model the following in...

Ngày tải lên: 23/03/2014, 16:20

... knowledge, previous work has not used this approach for up- date summarization. In this article, we propose a novel nonpara- metric Bayesian approach for update summariza- tion. Our approach, which is a variation ... training set for tuning the hyper- parameters for the model, namely the pseudo- counts for the two Dirichlet priors that affects the topic mix assignment for eac...

Ngày tải lên: 31/03/2014, 20:20

... There- fore, these results clearly indicate that the electron transport system for CYP175A1 is composed of Fdx, FNR, and NADPH (Fig. 4B). All quantitative analyses were performed at 65 °C for 2 ... via OFOR and Fdx to CYP119 [13,14]. Inter- estingly, the electron transport system for CYP175A1 did not utilize OFOR, although the T. thermophilus HB27 genome contains the genes encoding OFOR...

Ngày tải lên: 18/02/2014, 08:20

... available 1 (see Section 2 for more details), describe our novel approach to the task, and provide results for our system on this dataset. We address automated assessment as a supervised discriminative ... cor- relation measures, Pearson’s product-moment cor- relation coefficient and Spearman’s rank correla- tion coefficient (hereafter Pearson’s and Spearman’s correlation respective...

Ngày tải lên: 20/02/2014, 04:20

... according to the relationship between e u v and e p q 7: if τ(c i k ) is currently maximal or minimal then 8: Update bracketing instances for index j 9: end if 10: end if 11: end for 12: for each j ... the new model outperforms other previous methods and achieves a substantial improvement over the baseline which is not syntactically informed. 1 Introduction The phrase-based approach i...

Ngày tải lên: 20/02/2014, 07:20

... Right-corner transform Binarized trees 2 are then transformed into right- corner trees using transform rules similar to those described by Johnson(1998a). This right-corner transform is simply the ... right- corner transform representation of incomplete con- stituents, the Switchboard corpus is subjected to a pre-process transform to introduce binary-branching nonterminal projections, and fol...

Ngày tải lên: 20/02/2014, 09:20

... determin- istic parser for Chinese constituency parsing. In our approach, which is based on the shift-reduce parser for English reported in (Sagae and Lavie, 2005), the parsing task is transformed into ... used for assigning tags for unseen words. The refined model achieved LR/LP of 78.0%/81.2%. Chiang and Bikel (2002) used inside-outside unsupervised learning algo- rithm to augment t...

Ngày tải lên: 20/02/2014, 12:20