linear contextfree rewriting systems

... grammars and observe that they are a context-free rewriting sys- tem. Linear Context-Free Rewriting Systems Linear context-free rewriting systems arose from the observation that a number ... lin- ear context-free rewriting systems. This paper shows how the class of string languages generated by linear context-free rewriting systems relates to a number of other systems that have been ... linear context- free rewriting systems and multicomponent tree ad- joining grammars [6] generate the same string lan- guages. The multiple context-free grammars of [7] are equivalent to linear...

Ngày tải lên: 20/02/2014, 21:20

... Negra corpus. Translation: After that coal dust had caught fire. 2 Linear Context-Free Rewriting Systems Linear Context-Free Rewriting Systems (LCFRS; Vijay-Shanker et al., 1987; Weir, 1988) subsume a ... Proceedings of IWPT, pages 104– 116. Daniel Gildea. 2010. Optimal parsing strategies for linear context-free rewriting systems. In Proceedings of NAACL HLT 2010., pages 769– 776. Carlos G ´ omez-Rodr ´ ıguez, ... G ´ omez-Rodr ´ ıguez, Marco Kuhlmann, and Giorgio Satta. 2010. Efficient parsing of well- nested linear context-free rewriting systems. In Proceedings of NAACL HLT 2010., pages 276– 284. Carlos G ´ omez-Rodr ´ ıguez,...

Ngày tải lên: 08/03/2014, 21:20

... Independent parallelism in finite copying parallel rewriting sys- tems. Theoretical Computer Science, 223:87–120. Giorgio Satta. 1992. Recognition of linear context-free rewriting systems. In Proceedings of the ... of Information Engineering University of Padua, Italy satta@dei.unipd.it Abstract Linear Context-Free Rewriting Systems (LCFRSs) are a grammar formalism ca- pable of modeling discontinuous phrases. Many ... run- ning time improvement for known parsing algorithms for this class. 1 Introduction Linear Context-Free Rewriting Systems (LCFRSs) have been introduced by Vijay- Shanker et al. (1987) for modeling...

Ngày tải lên: 16/03/2014, 23:20

... conswained grammatical systems, and defined a class of such systems called Linear Context-Free Rewriting Systems (LCFRS's). LCFRS's are constrained to have linear non- erasing composition ... as a 279 COMBINATORY CATEGORIAL GRAMMARS: GENERATIVE POWER AND RELATIONSHIP TO LINEAR CONTEXT-FREE REWRITING SYSTEMS& quot; David J. Weir Aravind K. Joshi Department of Computer and Information ... Categorial Grammars and com- pare them to those of grammar formalisms in the class of Linear Context-Free Rewriting Systems. We also discuss certain extensions of CombinaWry Categorial Grammars and...

Ngày tải lên: 17/03/2014, 20:20

... copying parallel rewriting sys- tems. Theor. Comput. Sci., 223(1-2):87–120. Beno ˆ ıt Sagot and Giorgio Satta. 2010. Optimal rank re- duction for linear context-free rewriting systems with fan-out ... G ´ omez-Rodr ´ ıguez, Marco Kuhlmann, and Gior- gio Satta. 2010. Efficient parsing of well-nested linear context-free rewriting systems. In Proc. 2010 Meeting of the North American chapter of the Association for Computational ... Linguistics, 35(4):559–595. Laura Kallmeyer and Wolfgang Maier. 2010. Data- driven parsing with probabilistic linear context-free rewriting systems. In Proc. 23rd International Con- ference on Computational Linguistics (Coling...

Ngày tải lên: 23/03/2014, 16:20

... 2-7 August 2009. c 2009 ACL and AFNLP An Optimal-Time Binarization Algorithm for Linear Context-Free Rewriting Systems with Fan-Out Two Carlos G ´ omez-Rodr ´ ıguez Departamento de Computaci ´ on Universidade ... of Information Engineering University of Padua, Italy satta@dei.unipd.it Abstract Linear context-free rewriting systems (LCFRSs) are grammar formalisms with the capability of modeling discontinu- ous ... much effort to the development of formal systems for modeling the syntax of nat- ural language. There has been a considerable in- terest in rewriting systems that enlarge the generat- ive power...

Ngày tải lên: 23/03/2014, 16:21

... r. Then each elementary step in the recognition of Pl can 93 RECOGNITION OF LINEAR CONTEXT-FREE REWRITING SYSTEMS* Giorgio Satta Institute for Research in Cognitive Science University ... for linear context-free rewriting languages. 1 INTRODUCTION Beginning with the late 70's, there has been a consid- erable interest within the computational linguistics field for rewriting ... in [Vijay- Shanker et al., 1987] and [Weir, 1988] with the in- troduction of linear context-free rewriting systems (LCFRS) and in [Kasami et al., 1987] and [Seki et a/., 1989] with the...

Ngày tải lên: 31/03/2014, 06:20

... Agarwal, M Bohner, P Rehak, Half -linear dynamic equations. Nonlinear Anal. Appl. 1, 1–56 (2003) [8] LQ Jiang, Z Zhou, Lyapunov inequality for linear Hamiltonian systems on time scales. J. Math. ... Lyapunov for linear Hamil- tonian systems on time scales. J. Math. Anal. Appl. 381, 695–705 (2011) [11] GSh Guseinov, B Kaymakcalan, Lyapunov inequalities for discrete linear Hamiltonian systems. ... Stability criteria for linear periodic Hamiltonian systems. J. Math. Anal. Appl. 367, 329–336 (2010) [15] XH Tang, M Zhang, Lyapunov inequalities and stability for linear Hamil- tonian systems. J. Diff....

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Ngày tải lên: 23/06/2014, 01:20

... Examples of Linear and Nonlinear Systems Table 5-1 provides examples of common linear and nonlinear systems. As you go through the lists, keep in mind the mathematician's view of linearity (homogeneity, ... change. Fourier Decomposition x[n] x C1 [n] x C2 [n] x C8 [n] x S1 [n] x S2 [n] x S8 [n] x C0 [n] x S0 [n] x C3 [n] x S3 [n] cosine waves sine waves Chapter 5- Linear Systems 95 Table 5-1 Examples of linear and nonlinear systems. Formally, linear systems are defined by the properties of homogeneity, ... Alternatives to Linearity To appreciate the importance of linear systems, consider that there is only one major strategy for analyzing systems that are nonlinear. That strategy is to make the nonlinear...

Ngày tải lên: 13/09/2012, 09:49

... for conventional MIMO systems has been extensively studied in various scenarios in the past decade [23–26]. 1.1.3 AF MIMO Relay Systems The benefits of multiple-antenna systems can be directly ... Relay Sys- tems: In this chapter, joint design of linear relay precoder and destination equalizer for dual-hop non-regenerative AF MIMO-OFDM systems under channel estimation errors is investigated. ... of the more complicated AF MIMO relay systems. Capacity bounds under different channel state information (CSI) assumptions for single-user AF MIMO relay systems have been derived in [27], [28]....

Ngày tải lên: 20/11/2012, 11:31

... the arithmetic mean. Section I. Solving Linear Systems 3 works. The next example introduces that algorithm, called Gauss’ method (or Gaussian elimination or linear elimination). It transforms the ... safe in that it never loses solutions or picks up extraneous solutions. 32 Chapter One. Linear Systems II Linear Geometry of n-Space For readers who have seen the elements of vectors before, in ... k  1.21 This system is not linear, in some sense, 2 sin α − cos β + 3 tan γ = 3 4 sin α + 2 cos β − 2 tan γ = 10 6 sin α − 3 cos β + tan γ = 9 50 Chapter One. Linear Systems We think of these...

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Ngày tải lên: 01/01/2014, 20:12

... endpoints k 1 , ,k 2s ∈{0, 1, ,N}; this Annals of Mathematics Isomonodromy transformations of linear systems of difference equations By Alexei Borodin ISOMONODROMY TRANSFORMATIONS 1147 probability ... closed path γ in C avoiding the singular points {x k } then the columns of Y will change into their linear combinations: Y →YM γ . Here M γ is a constant invertible matrix which depends only on the ... class of γ. It is called the monodromy matrix corresponding to γ. The monodromy matrices define a linear representation of the fundamental group of C with n punctures. The basic isomonodromy problem...

Ngày tải lên: 14/02/2014, 17:20

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