enhancing unlexicalized parsing performance

... re- alistic one in which parsing and segmentation are handled jointly by the parser (Goldberg and Tsar- faty, 2008) (Sec. 5). External lexical informa- tion enhances unlexicalized parsing performance by ... Greece, 30 March – 3 April 2009. c 2009 Association for Computational Linguistics Enhancing Unlexicalized Parsing Performance using a Wide Coverage Lexicon, Fuzzy Tag-set Mapping, and EM-HMM-based ... enhances the performance of an unlexicalized Hebrew PCFG parser, re- sulting in state-of-the-art Hebrew parsing results both when a segmentation oracle is assumed, and in a real-word parsing sce- nario...

Ngày tải lên: 17/03/2014, 22:20

... because of beneficial effects on parsing that were complementary to lexicalization. In this paper, we show that the parsing perfor- mance that can be achieved by an unlexicalized PCFG is far higher ... advantages of unlexicalized grammars are clear enough – easy to estimate, easy to parse with, and time- and space-efficient. However, the dismal per- formance of basic unannotated unlexicalized ... best-first probabilistic chart parsing. Computa- tional Linguistics, 24:275–298. Eugene Charniak, Sharon Goldwater, and Mark Johnson. 1998. Edge-based best-first chart parsing. In Proceedings of the Sixth...

Ngày tải lên: 08/03/2014, 04:22

Ngày tải lên: 21/06/2014, 12:20

Ngày tải lên: 21/06/2014, 12:20

Ngày tải lên: 21/06/2014, 12:20

Ngày tải lên: 21/06/2014, 12:20

Ngày tải lên: 21/06/2014, 12:20

Ngày tải lên: 05/08/2013, 11:07

... providing long service life, reliability, durability, and the highest performance available. Enhancing Angle-Polished Connector (APC) Performance in the Outside Plant (OSP) Page 3 OSP Connector Concerns Until ... ADC’s global sales office locations, please refer to our web site. WHITE PAPER Enhancing Angle-Polished Connector (APC) Performance in the Outside Plant (OSP) Page 5 Results are in the Testing Independently ... dictated a need for APCs to push performance limits. However, the trend toward pushing fiber all the way to the customer premise has resulted in a need for high -performance APCs that can withstand...

Ngày tải lên: 10/12/2013, 20:15

... method- performance audit; through Collecting and spending toll fee audit, investigate and improve performance audit, get performance audit theory to audit reality and implement more performance ... of performance achieved and evaluate the significance of underlying factors that affect reported performance. (Source: Performance Audit Guide- EC project) Table 2.5: Audit questions on performance ... or effectiveness, then it is performance audit. Another way to decide if an audit is a performance audit is to look at the questions the audit is trying to answer. Performance audit usually tries...

Ngày tải lên: 18/02/2014, 23:03

... impact on the performance of three unification-based parsing algorithms, using a wide-coverage grammar. The results imply that the study and optimisation of unification-based parsing must ... compares the performance of different parsing algorithms using wide-coverage unification-based grammars. Previous comparisons have either fo- cussed on context-free (CF) or augmented CF parsing ... ambiguous parsing. " In Pro- ceedings of the 27th Meeting of the Association for Computational Linguistics. 143-151. Bouma, G. & G. van Noord (1993) "Head-driven parsing for...

Ngày tải lên: 20/02/2014, 21:20

... bi- directional (used for generation as well as parsing) and so contain very specific linguistic information. In this work, we focus on techniques to improve parsing, not generation, but, as all the ... dis- tinctions which greatly increases the parser search space, making parsing slow. By restricting the lexi- cal items considered during parsing, we improve the efficiency of a parser with a possible ... showing minimal loss of coverage or precision at a threshold which halved the average parsing time. At the lowest parsing time, we see that precision of the POS tagged model even goes up. This can...

Ngày tải lên: 17/03/2014, 02:20

... achieved with SF v , which was also the best configuration for parsing with Bikel. The performance gain obtained here is larger than in parsing, which is in accordance with the findings of Stetina ... applying lexical seman- tics in parsing and PP attachment tasks. Below, we outline these tasks. Parsing As our baseline parsers, we use two state-of-the- art lexicalised parsing models, namely the ... attachment performance over the baseline Bikel parser thus represents an advance- ment in state-of-the-art performance. That we specifically present results for PP attach- ment in a parsing context...

Ngày tải lên: 31/03/2014, 00:20

Ngày tải lên: 21/06/2014, 17:20

Ngày tải lên: 28/06/2014, 17:20

... and 802.11g for the performances in the cell? It is mandatory to use the mechanism RTS / CTS. 8. One would like to develop a wifi network of future generation having better performances as those ... Subject 7 –IEEE 802.11 standards Wifi performances 1. Impact of the transmission quality One is interested here in the impact of radio transmission errors on the performances of a wireless network...

Ngày tải lên: 17/09/2012, 09:13

Ngày tải lên: 04/10/2012, 10:24

Ngày tải lên: 16/10/2012, 08:24