Báo cáo khoa học: "A Comparative Study of Parameter Estimation Methods for Statistical Natural Language Processing" potx

... Comparative Study of Parameter Estimation Methods for Statistical Natural Language Processing Jianfeng Gao * , Galen Andrew * , Mark Johnson *& , Kristina Toutanova * * Microsoft Research, ... place. 1 Introduction Parameter estimation is fundamental to many sta- tistical approaches to NLP. Because of the high-dimensional nature of natural language, it...

Ngày tải lên: 08/03/2014, 02:21

... the ÔServeis Cientifico-TecnicsÕ of the University of Barcelona, using the 488 nm line of an argon laser and standard optical emission filters. Percentages of cells at each phase of the cell cycle were ... (E) Effect of WP631 on the number of viable cells determined by exclusion of Trypan blue dye. Data are shown as a percent of the cells in untreated control cells and represen...

Ngày tải lên: 20/02/2014, 23:20

... evaluation reliability for a number of classifiers, which were generated as a part of a greedy search for kernel parameters and found some linear correlation between the two. This proof of concept is a ... developed based 880 on one group of MT systems evaluate the translation qualities of new systems? In this paper, we argue for the viability of a regression-based framework...

Ngày tải lên: 08/03/2014, 02:21

... Reordering for Statistical Machine Translation ∗ Nan Yang † , Mu Li ‡ , Dongdong Zhang ‡ , and Nenghai Yu † † MOE-MS Key Lab of MCC University of Science and Technology of China v-nayang@microsoft.com, ... the source language to facilitate translation, we consider to not only change the order of the source language, but also inject syntactic structure of the target language...

Ngày tải lên: 19/02/2014, 19:20

... domain-specific set of prototypical construc- tions. Therefore, the EBL approach is also very interesting for natural language generation (NLG). Informally, NLG is the production of a natural language ... Grammar. Center for the Study of Language and Information Stanford. Rayner, M. 1988. Applying explanation-based gen- eralization to natural language processin...

Ngày tải lên: 08/03/2014, 21:20

... closed. Severity of ab- normalities in each category are rated by the subject and technician, with a range of scores for nausea of 0 to 16, for skin color of 0 to 8, for cold sweating of 0 to 8, ... rank-sum test. Motion sickness was higher for the T condition than for the H condition for 6 of 10 subjects for placebo trials. For these 6 subjects, 4 of them s...

Ngày tải lên: 26/10/2012, 09:57

... respect. Sensitivities ranged from 64% for assay of Abs against teichoic acid to 72% for assays of antibody to peptidoglycan and α-toxin. The specificity of assays for antibody to cell wall antigens ... voltage of 175V until the bromophenol blue dye had reached the bottom over a period of 45 min-1hr. Broad range molecular weight markers (Bio-Rad) were also run for mol...

Ngày tải lên: 02/11/2012, 11:08

... treatment for ovarian cancer. There were two cases of breast cancer, two cases of sigmoid adenocarcinoma, one case of small cell lung cancer, one case of hypernephroma, and one case of head and ... in cases of important hypacusia or neurotoxicity or in patients over 76 years of age. Statistical comparison of overall and disease-free survival was based on Kaplan-Meier es...

Ngày tải lên: 03/11/2012, 09:57

... variants of the ApoC1 gene are limited to un- translated regions of the gene, synonymous mutations of the coding sequence and a number of variants of the intron regions of the gene (NCBI database for ... to truncated forms of the T45 variant (m ⁄ z ¼ 6632 ⁄ 6434, e) and the S45 variant (m ⁄ z ¼ 6618 ⁄ 6420, h). (F) Peak ratios of lipoprotein isoforms. The ratio of peak int...

Ngày tải lên: 19/02/2014, 05:20

... B, O-3 and O-4 of residue C, O-3 of residue D,O-4andO- 6of residues E and F, O-6 of residue G, O-5 and O-4 of residue L,whereasI was a terminal residue. In the high field region of the spectrum ... absence of anomeric signals from GlcN I and GlcN II of Lipid A, the lack of pyruvate methyl groups, as a consequence of the cleavage of the ketal group under acid treatment, and...

Ngày tải lên: 19/02/2014, 13:20