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 is often easy to generate ... the other three better performing estimation methods for this model. The CMM is a probabilistic sequence model and the log-loss used by ME estimation is most natural for it; thus we limit the...

Tài liệu Báo cáo khoa học: A comparative analysis of the time-dependent antiproliferative effects of daunorubicin and WP631 pdf

... theÔServeis Cientiﬁco-TecnicsÕ of the University of Barcelona,using the 488 nm line of an argon laser and standard opticalemission ﬁlters. Percentages of cells at each phase of the cellcycle were ... (E) Eﬀect of WP631 on the number of viable cells determined by exclusion of Trypan blue dye. Data areshown as a percent of the cells in untreated control cells and representthe means of three ... presence of 60 nMWP631 (the IC75 of which was measured at 72 h) is shownin Fig. 2E. It illustrates the ability of the cells to excludeTrypan blue for up to 140 h. However, by 72–80 h of incubation...

Báo cáo khoa học: "A Re-examination of Machine Learning Approaches for Sentence-Level MT Evaluation" ppt

... evaluation reliability for anumber of classiﬁers, which were generated as apart of a greedy search for kernel parameters andfound some linear correlation between the two. Thisproof of concept is a ... developed based880on one group of MT systems evaluate the translationqualities of new systems?In this paper, we argue for the viability of aregression-based framework for sentence-level MT-evaluation. ... quality of the sentence.Thus, the composite metric is encoded in the conﬁ-dence scores of the classiﬁcation labels.While the learning approach to metric design of- fers the promise of ease of combining...

Tài liệu Báo cáo khoa học: "A Ranking-based Approach to Word Reordering for Statistical Machine Translation" doc

... Reordering for Statistical Machine Translation∗Nan Yang†, Mu Li‡, Dongdong Zhang‡, and Nenghai Yu††MOE-MS Key Lab of MCCUniversity of Science and Technology of Chinav-nayang@microsoft.com, ... the source language to facilitate translation, we consider to notonly change the order of the source language, butalso inject syntactic structure of the target language into source language by ... ﬁnd-ing the children permutation of each node with min-imal CCLN. Unfortunately, the time cost for the sub-task is still O(n!) for a node with n children. Instead of enumerating through all permutations,...

Báo cáo khoa học: "Applying Explanation-based Learning to Control and Speeding-up Natural Language Generation" potx

... 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 processing. In Pro- ceedings of the International ... component of a general natural language generation system NLG. In this paper we assume that the strategic component of the NLG has already computed the MRS repre- sentation of the information of...

Báo cáo y học: "A pilot study of rizatriptan and visually-induced motion sickness in migraineu"

... 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 showed a decreased or absent Drummond ... the data were collected for the entire study. Blood pressure, heart rate, and the develop-ment of any adverse events were monitored for the two hours after ingestion of study drug. Two hours...

Báo cáo y học: "A comparative analysis of antibody repertoire against Staphylococcus aureus antigens in Patients with Deep-Seated versus Superficial staphylococcal Infections"

... 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 molecular weight estimation of ... 100 ml of TCA). Three aliquots of supernatant were pooled and extracted 3 times with double volume of ethyl ether each time and then precipitated with 3 volumes of acetone at 4°C for 24...

Báo cáo y học: "A Randomized Study of Epithelial Ovarian Cancer: Is Chemotherapy Useful after Complete Remission"

... 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 estimates of survival ... Kaplan-Meier estimates of survival and a log-rank test of statistical significance. 3. Results The study population consisted of 122 patients. Median age of both the consolidation therapy population...

Tài liệu Báo cáo khoa học: A functional polymorphism of apolipoprotein C1 detected by mass spectrometry docx

... 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 theintron 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 ¼6618 ⁄ 6420, h). (F) Peak ratios of lipoprotein isoforms. The ratio of peak intensities for ApoC2 (m ... taken of each fractionshowed that the majority of change occurred betweenfractions 3 and 8.Selective incorporation of other protein isoforms inVLDLs compared with HDLs was not observed. For example,...

Tài liệu Báo cáo khoa học: A novel type of highly negatively charged lipooligosaccharide from Pseudomonas stutzeri OX1 possessing two 4,6-O-(1-carboxy)-ethylidene residues in the outer core region ppt

... 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 residueL,whereasI was a terminal residue. In the high ﬁeld region of the spectrum ... absence of anomericsignals 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 the presence of singlet ... supportedby the ﬁnding that an alternative minor glycoform of theLOS has been found, with the typical oligosaccharidestructure of a potential substrate for chain elongation andO-polysaccharide attachment...

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