an algorithm for finding best matches

Ngày tải lên: 31/03/2014, 06:20

... 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 ... right-hand side of any production of G' contains either a single terminal- pair or a list of nonterminals. Lemma3 For any inversion-invariant transduction grammar G, there exists an equivalent...

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 ... less tban 1.28 (corresponding to a 90% significance level) are set to zero; negative weights and weights greater than 1.28 are left unchanged. 2) Positive weights of character-to-zero matches...

Ngày tải lên: 21/02/2014, 20:20

... 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

... guarantees the optimality which can- not be attained in approximate algorithms. In terms of k -best parsing, Huang and Chiang (2005) proposed an efficient algorithm which is sim- ilar to the k -best ... our best knowledge the most efficient k -best se- quence algorithm is the Viterbi A* algorithm as shown in Algorithm 3. The algorithm consists of one forward pass and an A* backward pass. The forward pass ... the agenda can be used to back track the k -best sequences. The k -best A* algorithm has the computational complexity of KTL and KTL 2 for best and worst cases respectively. 4.4 K -Best Iterative...

Ngày tải lên: 16/03/2014, 19:20

... non-transliteration pairs than transliter- ation pairs. We don’t want to maximize the like- lihood of the non-transliteration pairs. Instead we want to optimize the transliteration performance for test ... English/Russian than on other language pairs. Their best systems for En- glish/Russian are only trained on the seed data and the use of unlabelled data does not help the perfor- mance. Since our ... its performance is similar to or better than many of the semi-supervised systems on three language pairs. We are only aware of one previous work which uses transliteration information for word...

Ngày tải lên: 23/03/2014, 16:20

... several graph-based algorithms derived from his formal model of plan recognition. In Kautz's algorithms, an explanation for an observation is represented in the form of an explanation graph ... modelling this information and have provided an algorithm for constructing and reasoning with it. The steps of the construction algorithm parallel the reasoning that an agent performs in determining ... like to thank Cecile Balkanski, Barbara Grosz, Stuart Shieber, and Candy Sidner for many helpful discussions and comments on the research presented in this paper. REFERENCES Allen, J. and Perrault,...

Ngày tải lên: 23/03/2014, 20:20

Ngày tải lên: 01/04/2014, 00:20

Ngày tải lên: 21/06/2014, 20:20

Ngày tải lên: 22/06/2014, 06:20

Ngày tải lên: 23/06/2014, 01:20

... 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...

Ngày tải lên: 25/10/2012, 10:45

Ngày tải lên: 08/08/2013, 08:38

... 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

... 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

... (dominance cut-oft) The best- first search is performed by the proce- dure Search (Figure 3). It maintains the variables Procedure Search Best <— Root Bestscore  00; Estimate  Assess (Best) 1 ... a best- first search algorithm for producing referring expressions that identify sets of objects. The power of the algorithm comes from linguistically motivated restrictions and preferences, and ... State (Best) = Closed then return failure endif  (1) if State (Best) = Final then return Description (Best) endif  (2) Descriptors  Generate-Next (Best)  (3) if Descriptors = nil then State (Best)  Closed else...

Ngày tải lên: 22/02/2014, 02:20

... 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