Báo cáo khoa học: "CLASSICAL LOGICS FOR ATTRIBUTE-VALUE" ppt

... CLASSICAL LOGICS FOR ATTRIBUTE-VALUE LANGUAGES J iirgen Wcdekind Xerox Palo Alto Research Center and C.S.L.I Stanford University USA Abstract This paper describes a classical logic for attribute-value ... which is used for deciding satisfiability of a feature description is based on a restricted deductive closure construc- tion for sets of literals (atomic formulas and nega...

Ngày tải lên: 24/03/2014, 05:21

... no formal or linguis- tic guarantee that this will be the case for the relation as a whole or for the translation steps between inter- mediate levels of representation. (An attempt to formalize ... to calculate a global score for a representation seems a rather arbitrary procedure. Such a uniform metric, even if it can model actual linguistic knowledge, forces the grammar write...

Ngày tải lên: 22/02/2014, 10:20

... comparisons in the restaurant domain, for a database of restaurants in New York City. There are eight attributes for each restaurant: the name and address, scalar attributes for price, food quality, at- mosphere, ... additional operations for conces- sions and restatements. See Table 2. The probabil- ity of the operations biases the production of com- plex clauses, periods and formal...

Ngày tải lên: 17/03/2014, 04:20

Ngày tải lên: 23/03/2014, 14:20

... the patient has options for ‘survival’ that they did not have before, even though they are dependent on ‘life support’. There are now variables Commentary Medical treatment for the terminally ill: ... to accept the pie in the sky bye and bye long shot cure’. If the patient can just be maintained comfortably for long enough, then a cure may eventually become possible. 3. Surrogates disli...

Ngày tải lên: 25/10/2012, 10:45

... malignant transformation. Lectin microarray – a powerful technology for selection of lectins for cancer glyco-biomarkers The lectin microarray system is an emerging technique for analyzing glycan ... microarray system is the best tool for a ‘cell profiler’, and it is expected to be applicable for selection of cancer-specific lectins and for quality control of stem cells before trans...

Ngày tải lên: 16/02/2014, 08:20

... London) for providing the Lanp clone, which was produced from a cDNA originally provided by Dr A. Matilla (ICH, London), Filippo Prischi for help with the gromacs software, and Dr L Masino for helpful ... into the groove formed by the concave surface of the LRR domain. Stabilizing interactions could form between His230 of PP2A-C and Asp119 and Asn94 of Anp32a. A salt bridge could form b...

Ngày tải lên: 18/02/2014, 17:20

... cleft formed by the two domains. A common functional conformational change has been reported in this protein family, which involves switching from an open form to a sugar-transporter bindable form, ... [11,15]. A common drastic conformational change is found in this protein family, which participates in switching from an open form to a closed form [16]. In EcoMBP, the closed form has been obs...

Ngày tải lên: 19/02/2014, 00:20

... product P40 of MPN142, formerly called ORF6 gene. Combining mass spectrometry with a method for sulfonating specifically the free amino terminal group of proteins, the cleavage site for a typical signal ... SPase typical for Gram-positive bacteria or for Gram-negative bacteria (such as LepB) has been identified in M. pneumoniae, although a SPase I activity has been shown to be essential...

Ngày tải lên: 19/02/2014, 18:20

... S 1 , which contains all of the information that is in the input sentence. The part of the information that is implicit in the sentence (tense, voice, and so forth) is made explicit in S 1 . ... certain German verb form into English, it is necessary to un- derstand the German verb form as part of a complex of features of German structure in- cluding possibly other verb forms within t...

Ngày tải lên: 19/02/2014, 19:20