Báo cáo khoa học: "A New Statistical Parser Based on Bigram Lexical Dependencies" potx

... pass/fail, grades A– F) based on content and style features such as word unigrams and bigrams, sentence length, number of verbs, noun–verb pairs etc. Classification is based on the conditional probability ... assigned a score based on the ones in the training set that are most similar. The overall score, which is calculated using regression techniques, is based on the content s...

Ngày tải lên: 20/02/2014, 04:20

... Korea ** Changwon National University Department of Computer information & Communication 9 Sarim-dong, Changwon Gyeongnam, Korea 641-773 nohhj@postech.ac.kr jcha@changwon.ac.kr gblee@postech.ac.kr ... one transition unit. The transition probability calculation is the same as above. In more than two Jaso’s transition case, the spel- ling errors cannot be corrected only by Jaso t...

Ngày tải lên: 20/02/2014, 12:20

... parser actions. Parser actions introduce new items into the table licensed by one or more items already in the table. The main types of parser actions are: 1. extending a constituent by incorporating ... re-casting of the conventional LTAG parser in terms of such au- tomata 2. For this automaton -based parser, the grammar structures are not trees, but automata correspond...

Ngày tải lên: 20/02/2014, 18:20

... co-articulation) in a natural way. I. Parsing at the Phonetic Level It is well known that phonemcs have different acoustic/phonetic realizations depending on the context. Fur example, the phoneme/t/ ... exploits allo- phonic and phonotactic constraints on syllable structure. 1.4 Exploiting Redund:mey In many cases, atlophonic and phonotacdc constraints are redundant, Even if the...

Ngày tải lên: 21/02/2014, 20:20

... evolution of coral fluorescent proteins. PLoS ONE 3 , e2680. 49 Ai HW, Henderson JN, Remington SJ & Campbell RE (2006) Directed evolution of a monomeric, bright and photostable version of Clavularia ... chromophore formation in GFP involves cyclization, oxidation and dehydration, and in DsRed and other coral FPs, an additional oxidation step occurs [4,29–31]. Previously, DsRed chromophore...

Ngày tải lên: 06/03/2014, 11:20

... stimula- tion at a frequency of 0.1 Hz. The resting tension for each muscle preparation was adjusted in order to achieve maxi- mal contractile responses upon indirect muscle stimulation. Electrical ... de Peer Y & De WR (1997) Construction of evolu- tionary distance trees with TREECON for Windows: accounting for variation in nucleotide substitution rate among sites. Comput Appl Biosci 13,...

Ngày tải lên: 06/03/2014, 11:20

... experimental conditions are also more speci- fic than previous assays, because specificity of detec- tion was not only based on the peptide sequence but was markedly increased by the use of a monospecific antibody ... immunoprecipita- tion of CatE). The reaction was terminated by addition of 25 lL stop solution [5% (v ⁄ v) acetonitrile, 1% (v ⁄ v) tri- fluoroacetic acid] in water. Then 5 lL o...

Ngày tải lên: 07/03/2014, 09:20

... in response to UV-B radiation and thus may be able to adapt to daily fluctuations in solar radiation impinging on their natural environment. Action spectra for the induction of Fig. 4. Prevention ... cultivation for three months, the colonies and slants were harvested. Cultivation of the mycobionts isolated from Collema cristatum andusedinourstudy,wascarried out by I. Dor (Division of Enviro...

Ngày tải lên: 07/03/2014, 15:20

... transcription and translation of gfp mRNA To further evaluate the properties of the Pnr ⁄ Tnr expression cassette, Clone 31 cells preconditioned in ammonium medium were subjected to nitrogen starva- tion, ... only constitutive expression of intro- duced genes has been achieved. The one exception involved expression of a green fluorescent protein (GFP) fusion protein in P. tricornutum, under co...

Ngày tải lên: 07/03/2014, 21:20

... Glucoamylase structural, functional, and evolutionary relationships. Proteins 29, 334–347. 65 Williamson MP, Le Gal-Coeffet MF, Sorimachi K, Furniss CS, Archer DB & Williamson G (1997) Func- tion of conserved ... Felsenstein J (1985) Confidence limits on phylogenies: an approach using the bootstrap. Evolution 39, 783–791. 94 Page RD (1996) TreeView: an application to display phylogenetic...

Ngày tải lên: 07/03/2014, 21:20