Báo cáo khoa học: "Hierarchical Directed Acyclic Graph Kernel: Methods for Structured Natural Language Data" pptx

... resources. 1 NL Engine Natural language processing in the Unisys natural language understanding (NLU) system (Dahl, Norton and Scholz (1998), Dahl (1992)) is done by a natural language (NL) engine ... lexical information for about 3000 English words. This includes information on an exhaustive set of closed-class words prepositions, pronouns, conjunctions, etc. It also incl...

Ngày tải lên: 20/02/2014, 18:20

... A Logical-form and Knowledge-base Design for Natural Language Generation. Proceedings AAAI-86 Fifth National Con- ference on Artificial Intelligence, The American As- sociation for Artificial ... and a taxonomic language with formal semantics for specification of descriptive constants and axioms relating them. Remarkably, 99.9% of 7,000 vocabulary items in our natural la...

Ngày tải lên: 21/02/2014, 20:20

... chunk tag. Then, for the string pair <filed for bankruptcy, shenqing pochan>, we can get the rule r 1 : X → VBN 1 for NP 2 , VBN 1 NP 2  while for the string pair <A request for a purchase of ... the form of rules and the way of estimating rule probabilities. While for decoding, we employ the same decoding algorithm for the two models: given a test sentence, the decode...

Ngày tải lên: 19/02/2014, 19:20

... to incorporate the hierar- chical information. Though the subclasses can share information with their parent class, the shared infor- mation may be different for each subclass. So we should decompose ... Table 1 and 2. For WIPO-alpha dataset, we also compared LHPA with two algorithms used in (Rousu et al., 2006): HSVM and HM3. We can see that LHPA has better performances than the other m...

Ngày tải lên: 20/02/2014, 05:20

... kinetics. A big increase in the K m for pyruvate was observed for the E1aR267A mutant, to nearly 300 l M compared with about 1 l M for wild-type E1. The K m for pyruvate was also found to be substantially increased ... for the mutants compared with wild-type E1. However, in the PDH assay, the catalytic activity fell to about 50% of the wild-type value for the E1aD276A and E1aR282A...

Ngày tải lên: 20/02/2014, 23:20

... resulting vector (pALAAO) was used for site -directed mutagenesis, and transformation of E. nidulans biA1, metG1, argB2 (IJFM A729), as described below [17]. Site -directed mutagenesis AAO variants ... for continuous production of hydrogen peroxide required for ligninolysis by redox cycling involving AAO and aryl-alcohol dehydrogenase [12]. In addition to acting as the oxidizing subst...

Ngày tải lên: 07/03/2014, 11:20

... genomic DNA at 94 °C for 2 min, fol- lowed by 30 cycles of 94 °C for 30 s for DNA denaturation, 55.6 °C for 30 s for primer annealing, and DNA synthesis elongation at 72 °C for 30 s. A final elongation ... during embryogenesis and there- fore may not perform a function equivalent to mam- malian FABP1 during zebrafish embryogenesis. The distinct patterns of expression for the fabp1...

Ngày tải lên: 07/03/2014, 12:20

... approx- imately one month of this data for training and the rest for testing. Before building the graphs (i.e., the tweet graph, the author graph, and the tweet-author graph) , the dataset was preprocessed ... optimiza- tion framework for interactive personalized summa- rization. In Proceedings of the 2011 Conference on Empirical Methods in Natural Language Processing, pages 1...

Ngày tải lên: 07/03/2014, 18:20

... Models for Task-Oriented Natural Language Generation Nina Dethlefs Department of Linguistics, University of Bremen dethlefs@uni-bremen.de Heriberto Cuay ´ ahuitl German Research Centre for Artificial ... opt- misation framework. Since language models in our approach can be obtained for any domain for which corpus data is available, it generalises to new do- mains with limited eff...

Ngày tải lên: 07/03/2014, 22:20

... hdn rat cao. Neu nhU d nUdc ta, ty le ly hdn hien nay Udc tinh khoang 5 %, thi d Nhat Ban, ty le nay la tren 30 % (www.divorcereform.org. ngay 14/8/2010). Cac nha nghien cflu ve gia dinh deu ... dang ky ket hdn dang xuat hien. Theo ket qua Tong dieu tra gia dinh Viet Nam 2006, fldc tinh cd khoang mpt trieu cap vd chdng dang sinh sd'ng khdng cd hdn thfl. Loai hinh gia dinh nay cun...

Ngày tải lên: 17/02/2014, 05:20