Báo cáo khoa học: "Exact Decoding for Jointly Labeling and Chunking Sequences" pot

... update for linear-chain models but performed better on joint labeling and chunking. Although joint labeling and chunking model takes longer time per sample because of the time complex- ity of decoding, ... score; end for end for end for end for end for end for score := 0; for each C in chunk tags if (chunk table[index end][C] >= score) score := chunk table[inde...

Ngày tải lên: 31/03/2014, 01:20

... and the 4th IJCNLP of the AFNLP, pages 593–601, Suntec, Singapore, 2-7 August 2009. c 2009 ACL and AFNLP Variational Decoding for Statistical Machine Translation Zhifei Li and Jason Eisner and ... to minimize some information loss such as the KL divergence KL(p  q). The simpler model q can then act as a surrogate for p during inference. 3.2 Variational Decoding for MT For...

Ngày tải lên: 23/03/2014, 16:21

... FST decoding is feasible for a phrase-based system with limited reordering (the MJ1 model (Kumar and Byrne, 2005)), and de Gispert et al. (2010) show that exact FST decoding is feasible for a ... The labels for leaves will be words, and will be important in defining strings and language model scores for those strings. The labels for non-terminal nodes will not be importan...

Ngày tải lên: 30/03/2014, 21:20

... (ACL), Sapporo, Japan. John Lafferty, Andrew McCallum, and Fernando Pereira. 2001. Conditional Random Fields: Prob- abilistic Models for Segmenting and Labeling Se- quence Data. In Proceedings ... adhere to the definition of opinion holders from previous work (Wiegand and Klakow, 2010; Wiegand and Klakow, 2011a; Wiegand and Klakow, 2011b), i.e. every source of a private state or...

Ngày tải lên: 22/02/2014, 02:20

... of merit (FOM). Later work introduced other FOMs formed from PCFG data (Kochman and Kupin, 1991); (Magerman and Marcus, 1991); and (Miller and Fox, 1994). More recently, we have seen parse ... parses for the same substring, before it would generate even one parse for another area. The reason for that is that the figures of independent merit are frequently good as relativ...

Ngày tải lên: 08/03/2014, 06:20

... part-of-speech-specific layer, which con- tains aspectual information for verbs; and copulas, support expressions, and slot filling information for nouns and adjectives. • The “Other” layer, containing special ... identification and labeling (Gildea and Jurafsky, 2002; Litkowski, 2004). For all path features, we used both the traditional con- stituent parse tree path (as by Gil...

Ngày tải lên: 08/03/2014, 21:20

... methods and results has accumulated around it, and these can be clearly compared with one another. We use the standard test set for this task, a 24,115-word subset of the Penn Treebank, for which ... Bayesian framework and show how EM can be used to learn good POS taggers for Hebrew and English, when provided with good initial conditions. They use language specific information (l...

Ngày tải lên: 17/03/2014, 01:20

... modeling module - for computer scientists, • the Hidden-Markov-Models (HMM) module and Topic-Focus module - for both computer scientists and linguists. 2 The Learning Path For each module, the ... follows the same design rules in all modules and the layout and format decisions are consistent. A color and a font style are associated to only one kind of information (e.g. color r...

Ngày tải lên: 17/03/2014, 02:20

... competing explanations for a given data set and prior knowledge. We will now introduce the basic notation for this data set, and for the mathematical formulation of the potential explana- tion. ... steps (Fig. 10). The first step is the reformulation and formalization of the available data, prior knowledge, and suggested explanations into formal data sets and model struc- tures...

Ngày tải lên: 23/03/2014, 06:20

... 40, 50, 60, 70, 80, 90, and 100 m M ; and CTPS concentrations were 20 lgÆmL )1 for wild-type and 20–24 lgÆmL )1 for L109A. For assays of Gln- or Gln analogue-dependent CTP formation, concentrations ... 60.0, 80.0, and 100.0 m M ; and CTPS concentrations ranged betw een 28 and 120 lgÆmL )1 for wild-type and 40–160 lgÆmL )1 for L109A. The concentration of GTP was maintai...

Ngày tải lên: 23/03/2014, 13:20