Báo cáo khoa học: "Tier-based Strictly Local Constraints for Phonology" pptx

... language is said to be Strictly Local iff there is some k for which it is Strictly k -Local. For example, let Σ = {a, b, c} and L = aa ∗ (b + c). Then L is Strictly 2 -Local because for S = {⋊a, ab, ... Association for Computational Linguistics:shortpapers, pages 58–64, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Tier-based Strictl...

Ngày tải lên: 07/03/2014, 22:20

... to exploit non -local information in the next section. 3 Incorporating Non -local Information 3.1 Using Trigger Features To exploit non -local information to sequential la- beling for a statistical ... indicates only local information 413 for practical reasons. With sufficient local context (e.g. a sliding window of width 5), inference and learning are both efficient. However, if we...

Ngày tải lên: 20/02/2014, 12:20

... pattern discovery is more appropriate for our task because it allows for matching across patterns with permu- tations, for representation of wild cards and for use on smaller data sets. Similar ... a top-down planner for selecting and ordering content. 6 Conclusions In this paper we presented a technique for extract- ing order constraints among plan elements that performs satisf...

Ngày tải lên: 20/02/2014, 18:20

... we will present a method for integrating word order constraints in a typed feature unification formalism without adding new formal devices. Although some proposals for the interaction between ... the formal apparatus of HPSG for a new approach to processing with LP constraints. However, our method is not bound to the formalism of HPSG. In this paper we will demonstrate how L...

Ngày tải lên: 08/03/2014, 07:20

... decision rule is optimal for the sentence or string error rate. It is not necessarily optimal for other evaluation metrics as for example the BLEU score. One reason for the popularity of the ... 1997). For MT, MBR decoding was introduced in (Ku- mar and Byrne, 2004). It was shown that MBR is preferable over MAP decoding for different evalu- ation criteria. Here, we focus on the pe...

Ngày tải lên: 08/03/2014, 03:20

... set with respect to Σ ≤k , the forbidden fac- tors or forbidden subsequences). For example, the set containing the forbidden 2-factors {ab, ba} de- fines a Strictly 2 -Local language which includes all ... that P 0 (w) = {ε}, for all w ∈ Σ ∗ , that P 1 (w) is the set of symbols occurring in w and that P ≤k (L) is finite, for all L ⊆ Σ ∗ . Similar to the Strictly Local languages, S...

Ngày tải lên: 20/02/2014, 04:20

... structure treebank for English (Marcus et al., 1993) has seen the development of many effi- cient parsers. Using the dependency analysis, a similar large scale annotation effort for Czech, has ... linguistic constraints into account explicitly. But, in real-world applications of the parsers, some basic linguistic constraints are very useful. If we can make these parsers handle...

Ngày tải lên: 07/03/2014, 22:20

... produced relatively high performance for the time, but at the cost of multiplying out constraints in a manner that expanded the grammar beyond reasonable bounds for even moderately complex ... systems, a modular system usually make an explicit use of the constraints at each level of knowledge for making hard decisions. For instance, in modular systems there is an explicit s...

Ngày tải lên: 08/03/2014, 07:20

... Journal compilation ª 2011 FEBS 1615 (NIBIO) (G.T.); and in part by KAKENHI, Grant- in-Aid for Japan Society for the Promotion of Science (JSPS) Fellows, 213338 (A.I.). References 1 Rudel S & ... sequence-specific manner. A large number of genes appear to be the target of miRNAs, and an essential role for miRNAs in the regulation of various conserved cell signaling cascades, such as...

Ngày tải lên: 14/02/2014, 19:20

... electrode. For starch extraction, pellets for ethanol extraction were solubilized by heating them to 95 °Cin0.5m NaOH for 30 min. After acidification with 1 m CH 3 COOH, the suspension was digested for ... pattern search method for bound constrained gloabal optimiza- tion. J Glob Optim 39 , 197–219. 34 Schmidt H & Jirstrand M (2006) Systems Biology Tool- box for MATLAB: a compu...

Ngày tải lên: 14/02/2014, 22:20