Báo cáo khoa học: "The Acquisition and Application of Context Sensitive Grammar for English" docx

... The Acquisition and Application of Context Sensitive Grammar for English Robert F. Simmons and Yeong-Ho Yu @cs.texas.edu Abstract Department of Computer Sciences, AI Lab University of Texas, ... parsing and rapid acquisition of CSG from example parsings of newspaper stories. Chomsky[1957] defined a hierarchy of grammars in- cluding context- free and...

Ngày tải lên: 31/03/2014, 06:20

... cryostat. Results and discussion Electrophoretic profile Figure 1A shows the SDS/PAGE of purified ccNiR upon different treatments. The complex dissociates into an intense band of 61 kDa (NrfA) and a band of weak ... well as a faint band at 37 kDa, suggesting the presence of dimers. All of the bands stained positively for heme c (Fig. 1B) but only the high molecularmassbands(‡ 55...

Ngày tải lên: 21/02/2014, 00:20

... Structure and Process of Talking About Doing James A. Levln and Edwin L. Hutchins Center for Human Information Processing University of Callfornia, San Diego People talk •bout what they do, often ... study of problem solving action and report: I) the collected of data on problem solving and talk about problem solving, 2) development of a process model of these b...

Ngày tải lên: 21/02/2014, 20:20

... variants of words not known to it, e.g. plurals for nouns, comparative and superlative forms for adjectives, and past tense and participle forms for verbs. For example, PAST-TENSE VERB ACQUISITION ... shall discuss (a) the types of modifiers LDC provides for; (b) how information about the syntax and semantics of modifmrs is obtained from users; and (c) how t...

Ngày tải lên: 17/03/2014, 19:21

... tem- peratures for 20 min before the addition of excess unla- belled methionine and cysteine (met ⁄ cys) to start the chase. Chase samples were taken at time zero and various time points thereafter, and ... addi- tion of 1 · Kirby Buffer [38]. The rRNA was then extracted using phenol ⁄ chloroform (1 : 1, v ⁄ v) and precipi- tated with ethanol. Four micrograms of this isolated...

Ngày tải lên: 23/03/2014, 07:20

... MINIREVIEW The Yin and Yang of protein folding Thomas R. Jahn and Sheena E. Radford Astbury Centre for Structural Molecular Biology and Institute of Molecular and Cellular Biology, Gerstang ... folding and amyloid fibril formation, concentrating on the role of partially folded states in these processes, the complexity of the free energy landscape, and the potentials for...

Ngày tải lên: 23/03/2014, 11:20

... The detection and representation of ambiguities of intension and description Brenda Fawcett and Graeme Hirst Department of Computer Science University of Toronto Toronto, Ontario ... beliefs of agents, and a time of application. We describe such a representation, built on a standard modal logic, and show how it may be used in conjunction with a knowledge base of...

Ngày tải lên: 31/03/2014, 17:20

... translation of f , and a word alignment a between f and e. Our aim is to gain insight into the process of trans- forming π into f and to discover grammatically- grounded translation rules. For this, ... edges of π and alignments. Each node of the graph is labeled with its span and complement span (the latter in italic in the figure). The span of a node n is defined by the...

Ngày tải lên: 17/03/2014, 04:20

... Quantification is handled through a set of "structural descriptions." It is not clear how negation is handled. The main application is for the command and control of advanced graphics ... KNOI~LEDGE ORGANIZATION AND APPLICATION: BRIEF COMIIENTS ON PAPERS IN THE SESSION Aravind K. Joshi Department of Computer and Information Science The Moore School University...

Ngày tải lên: 31/03/2014, 17:20

... internal control for RT-PCR. PCR condi- tions were as follows: one cycle of 94 °C for 3 min, 32 cycles of 94 °C for 30 s, 54 °C for 30 s and 72 °C for 30 s, followed by one cycle of 72 °C for 5 min. ... expression of T-bet has been seen within a wide variety of tissues and cells in the Ginbuna crucian carp [27] and, in mammals, in the lung tissue of mouse and sp...

Ngày tải lên: 16/02/2014, 09:20