an optimal algorithm for finding segments intersections

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Ngày tải lên: 23/06/2014, 01:20

... f(g) are called the rank and fan-out of p, respectively, written r(p) and f(p). The rank and fan-out of G, written r(G) and f(G), respectively, are the max- imum rank and fan-out among all of ... constituents. Many applications use LCFRSs where the fan-out (a measure of the discontinuity of phrases) is not allowed to be greater than 2. We present an ef- ficient algorithm for transforming LCFRS with ... the while loop can be executed in constant time. 5 Discussion We have presented an algorithm for the binariza- tion of a LCFRS with fan-out 2 that does not in- crease the fan-out, and have discussed...

Ngày tải lên: 23/03/2014, 16:21

... used for the analysis were from the administrative claims data. To test the performance of the effectiveness algorithm and to see whether it was similar for non-biologic RA treatments, we performed ... made substantial contributions to conception and design, and to the analysis and interpretation of the data. TRM and GWC handled acquisition of data. All authors contributed to the manuscript ... optimization of the algorithm would be desirable, but substantially more data would be required for this approach and for validation. Finally, as an additional opportunity to extend the algorithm in...

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Ngày tải lên: 08/08/2013, 08:38

... above and the muropeptides were resolved by RP-HPLC. Acknowledgements We would like to thank Kees Leenhouts for supplying L. lactis NZ9000acmAD1 DhtrA and Abdel Atrih and Jonathan Hansen for technical ... Laemmli [36] with the protean II minigel system (Bio-Rad) and gels were stained with Coomassie Brilliant Blue (Bio-Rad). Standard low-range and prestained low- and high-range SDS ⁄ PAGE molecular ... centrifuged and the cell pellet (cell-bound AcmA) and the supernatant (nonbound AcmA) analyzed for the presence of AcmA by western hybridization. Binding was only observed for AcmA derivatives A4, A3 and...

Ngày tải lên: 19/02/2014, 18:20

... Proceedings of COLING’02. K. van Deemter and S. Peters. 1996. Semantic Ambiguity and Underspecification. CSLI, Stanford. E. Vestre. 1991. An algorithm for generating non-redundant quantifier scopings. In ... semantics: An introduction. Journal of Language and Computation. To appear. M. Egg, A. Koller, and J. Niehren. 2001. The Constraint Language for Lambda Structures. Logic, Language, and Information, ... rules. For instance, proper names and pronouns (which the ERG analyses as scope- bearers, although they can be reduced to constants without scope) can be permuted with anything. In- definites and...

Ngày tải lên: 20/02/2014, 12:20

... for composing trees. Many modern types of TAG also allow tree substitution next to adjunc- tion. Our algorithm can be straightforwardly extended to handle tree substitution. The main changes ... CS(N), for each N; • (N, L) • CS(N), for each N such that N <~* l, and each L • Af*; • N • CS(N), for each N such that -~(N<~*l); and • for each N, children(N) = MI""Mm and ... to correct the algorithm. We therefore developed an alternative to the algorithm from Schabes and Vijay-Shanker (1990). This alternative is novel in presenta- tional aspects, and is fundamentally...

Ngày tải lên: 20/02/2014, 18:20

... take note of three lemmas for IITGs (proofs omitted): Lemma l For any inversion-invariant transduction grammar G, there exists an equivalent inversion- invariant transduction grammar G' ... G' contains no productions of the form A ~ e/e. Lemma2 For any inversion-invariant transduction grammar G, there exists an equivalent inversion- invariant transduction gratrm~r G' where ... New Mexico. To appear. VITERBI, ANDREW J. 1967. Error bounds for convolutional codes and an asymptotically optimal decoding algorithm. IEEE Transactions on Information Theory, 13:260-269. WU,...

Ngày tải lên: 20/02/2014, 22:20

... wish to thank our colleagues Kerima Benkerimi, David Elworthy, Peter Gibbins, Inn Johnson, Andrew Kay and Antonio Sanfilippo at SLE, and our anonymous reviewers for useful feedback and discussions ... as translation coverage is extended and new lan- guage pairs are added. 5 Conclusion We have presented a polynomial complexity gener- ation algorithm which can form part of any Shake- and-Bake ... component has performed consistently better. References V. Allegranza, P. Bennett, J. Durand, F. van Eynde, L. Humphreys, P. Schmidt, and E. Steiner. 1991. Linguistics for Machine Translation:...

Ngày tải lên: 20/02/2014, 22:20

... III PERFORMANCE OF THE ALGORITHM The algorithm as described has been implemented in Simula 67 on a DEC ELI091 and applied to a corpus of some 300 words in 75 languages and dialects of Vanuatu. ... (Abramowitz and Stegun 1970). B. Vowel/Consonant Correspondences Disallowing correspondences between vowels and consonants vastly improved the performance of the algorltbm. No human intervention ... AN ALGORITHM FOR IDENTIFYING COGNATES BETWEEN RELATED LANGUAGES Jacques B.M. Guy Linguistics Department (RSPacS) Australian National University GPO Box 4, Canberra 2601 AUSTRALIA...

Ngày tải lên: 21/02/2014, 20:20

... pe,forms instanliation tit)ring parsing. Some details of the LR parsing algorithm are assumed from Aho and Ullman (1987) and Aho and Johnson (1974), and more formal definitions and notations ... Carl and Ivan A. Sag 1987. Information-Based Syntax and Semantics VoI.1. CSLI Lecture Notes 13. Stanford: CSLI. Shieber, S. 1985. "Using Restriction to Extend Parsing Algorithms for ... AN EXTENDED LR PARSING ALGORITHM FOR GRAMMARS USING FEATURE-BASED SYNTACTIC CATEGORIES Tsuneko Nakazawa Beckman Institute for Advanced Science and Technology and Linguistics...

Ngày tải lên: 22/02/2014, 10:20

... Parmentier, and Johannes Dellert. 2008. De- veloping an MCTAG for German with an RCG- based parser. In Proceedings of LREC-2008, Mar- rakech, Morocco. Wolfgang Maier and Anders Søgaard. 2008. Tree- banks ... to instantiate a clause of the grammar, we need to find ranges for all variables in the clause and for all occurrences of terminals. For convenience, we assume the variables in a clause and the ... adjacent variables can be concatenated), it is called an in- stantiated predicate and the result of applying φ to all predicates in c, if defined, is called an instanti- ated clause. We also introduce range...

Ngày tải lên: 08/03/2014, 01:20

... cases are not problematic, for instance, when two descriptors achieve unique identifi- cation and can be expressed by a simple noun phrase consisting of a head noun and an adjective. In more complex ... p and false otherwise Table 2: Functions used in the algorithm 210 Major problems for the future are an even tighter inte- gration of the algorithm in the generation process as a whole and ... p is prototypical for referent r and false otherwise yields the set of predicates entailed in N and holding for referent r yields properties which map onto the set of uninstantiated slots in...

Ngày tải lên: 08/03/2014, 21:20

... appearance of a variable can only be further instanfiated by a semantic individual constant and so the semantic representation after generation cannot be further instantiated in such a way that ... of an expression and generating the arguments to that functor. In the presentation of the basic algorithm below we will make the simplifying assumption that for any formula of the semantic ... of such algorithms is as fundamentally important as the corresponding work on parsing algorithms. We also discuss the properties of a semantic representation language (SRL) and the manner of...

Ngày tải lên: 09/03/2014, 01:20

... pages 61–66, Ann Arbor, Michigan, June 2005. c 2005 Association for Computational Linguistics Towards an Optimal Lexicalization in a Natural-Sounding Portable Natural Language Generator for Dialog ... of utterances that are free of disfluencies and interruptions, and where complete and syntactically correct sentences convey the meaning in a concise yet clear manner. Secondly we can define ... Goods and Seller. It also provides an overview of the valence patterns that were found in the annotated sentences for this frame. FrameNet does not include frequency information for each annotation....

Ngày tải lên: 17/03/2014, 06:20