Báo cáo khoa học: "Efficient Optimization of an MDL-Inspired Objective Function for Unsupervised Part-of-Speech Tagging" docx

... MDL-Inspired Objective Function for Unsupervised Part -of- Speech Tagging Ashish Vaswani 1 Adam Pauls 2 David Chiang 1 1 Information Sciences Institute University of Southern California 4676 Admiralty Way, ... are all zero, as are those of the equality con- straints. We perform this optimization for each instance of (15). These optimizations could easily be per- formed in...

Ngày tải lên: 07/03/2014, 22:20

... analyses for 79% of section 23 of the WSJ but do not report coverage just for the test sen- tences. The XLE parser uses several performance optimizations which mean that processing of sub- analyses ... a subset of the features and relations in DepBank. They com- pare performance of a grammatically cut-down and complete version of the XLE parser to the publically available vers...

Ngày tải lên: 20/02/2014, 12:20

... P, Leeman RJ, Johnson D, Ogagan M, Childs E, Freilino M & Grandis JR (2007) Antiproliferative mechanisms of a transcription factor decoy targeting signal transducer and activator of transcription ... (con) and the dead cells were counted after 16, 24 and 48 h of culture using trypan blue staining. (C) Cells were treated with 0.5, 1 and 2 lg of hpST3dODN and 1 and 2 lg of control...

Ngày tải lên: 18/02/2014, 08:20

... of b-secretase and for the exclusion of the formation of toxic b-amyloid peptides in HEK293 cells. Materials and methods Construction of plasmids for ribozyme expression Two sites of a b-secretase ... kept at )70 °C for several months without any decomposition of the RNA. Determination of the level of BACE mRNA and ribozyme RNA expression in mammalian cells The level of...

Ngày tải lên: 08/03/2014, 08:20

... by the Canadian Institutes of Health Research (Operating Grant MOP 43982 to GH), and by the Natural Sciences and Engineering Research Council of Canada (to GH). DSL was the recipient of an Ontario ... MBP maintains the compaction of the sheath by anchoring the cytoplas- mic faces of the oligodendrocyte membranes [2], and is a candidate antigen for T cells and autoantibodies in m...

Ngày tải lên: 19/02/2014, 07:20

... class-instance extraction can be significantly improved by adding semantic information in the form of instance-attribute edges derived from an independently developed knowledge base. All of our code and ... Van Durme and Pas¸ca, 2008). Start- ing with a few seed instances for some classes, these methods, through analysis of unstructured text, extract new instances of the same class...

Ngày tải lên: 07/03/2014, 22:20

... integrals of different lanes are not constant. (C) Time course of fragment exchange reaction in the absence (solid lines) and presence (dashed lines) of the antisense oligonucleotide S6-anti. S. A. Ivanov ... of fragment exchange reaction after 5 and 80 min. Lane 4, incubation of S20 cp(Cy5) with initial substrate S40F3F5 in the absence of HP–TWRJ under conditions of fragment-ex...

Ngày tải lên: 20/02/2014, 01:20

... the sample cell, with 3 atm of pressure and a temperature range of 25–85 °C. Data were analyzed by using a sigmoidal curve through CPCALC software, and the midpoint of the heat denatura- tion, ... (2010) Ligand-induced changes in the conformational stability and flexibility of glutamate dehydrogenase and their role in catalysis and regulation. Protein Sci 19, 1820–1829. 19 Marion JD, V...

Ngày tải lên: 05/03/2014, 23:20

... RA (2001) Recognition of double-stranded RNA and acti- vation of NF-jB by Toll-like receptor 3. Nature 413, 732–738. 20 Amarzguioui M & Prydz H (2004) An algorithm for selection of functional siRNA ... Shi S, Jayaprakash KN, Jayaraman M, Wang G, Pandey RK, Rajeev KG, Nakayama T, Charrise K, Ndungo EM et al. (2007) Mechanisms and optimization of in vivo delivery of lipophil...

Ngày tải lên: 06/03/2014, 01:23

... hospital information system for the following: orders for sputum cul- tures or performance of a bronchoalveolar lavage for culture, or start of or a change in antimicrobial therapy in case of unex- pected ... the manuscript. PS, JS and MV contributed to the conception and design of the study and manuscript revision. JK was involved in the design and statistical analysis of the...

Ngày tải lên: 25/10/2012, 10:39