ccg and loglinear models

Ngày tải lên: 23/03/2014, 19:20

... variable models (X i ,D i ) 1≤i≤m and (  X i ,  D i ) 1≤i≤m with default indicator vectors Y and  Y. The models are equivalent if 1. P (X i ≤ D i )=P (  X i ≤  D i ),i∈{1, ,m}, 2. X and  X ... product of a scalar random variable S and a normal random vector Z =(Z 1 , ,Z m ). That is X d = S · Z, (3) where Z is multivariate normal with mean vector 0 and covariance matrix Σ, and S is positive, ... freedom. The left hand plot shows 5000 points from a standard bivariate normal distribution; the right-hand plot shows 5000 points from a composite distribution with a t copula and standard normal margins....

Ngày tải lên: 06/03/2014, 04:21

... multiple methods of context similarity, and concluded that agglomerative clustering provides effective means of inference (Gooi and Allan, 2004). Pedersen et al. (2006) and Purandare and Pedersen (2004) inte- grate ... undirected graphical models. In Neural Information Processing Systems (NIPS), Workshop on Learning on Cores, Clusters and Clouds. Ben Wellner, Andrew McCallum, Fuchun Peng, and Michael Hay. 2004. ... (Blume, 2005; Baron and Freedman, 2008; Popescu et al., 2008). These approaches are greedy and differ in the choice of the distance function and the clustering al- gorithm used. Daum ´ e III and Marcu...

Ngày tải lên: 07/03/2014, 22:20

... an 104 References Stephan Bloehdorn and Alessandro Moschitti. 2007a. Combined syntactic and semantic kernels for text clas- sification. In Proceedings of ECIR 2007, Rome, Italy. Stephan Bloehdorn and Alessandro Moschitti. ... expression segmentation and polarity labeling and compare them to the joint opinion extractor and polarity clas- sifier by Choi and Cardie (2010). Secondly, we ex- tend the global structure approach and add features reflecting ... Thomas Finley, and Chun-Nam Yu. 2009. Cutting-plane training of structural SVMs. Ma- chine Learning, 77(1):27–59. Richard Johansson and Alessandro Moschitti. 2010a. Reranking models in fine-grained...

Ngày tải lên: 07/03/2014, 22:20

... PCFG models of linguistic tree representations. Computational Linguistics, 24(4):613–632. John Lafferty, Andrew McCallum, and Fernando Pereira. 2001. Conditional Random Fields: Prob- abilistic models ... models. However, it would also be interesting to compare the performance of joint and conditional estimators on more sophisticated models. References Steven Abney, David McAllester, and Fernando Pereira. ... algorithm. Computer Speech and Language, 4(35-56). Andrew McCallum, Dayne Freitag, and Fernando Pereira. 2000. Maximum Entropy Markov Mod- els for information extraction and segmentation. In Machine...

Ngày tải lên: 08/03/2014, 05:20

... analytically and 27 Figure 5: USD swaption volatilities as of November 25, 2008. Strikes and vols are expressed as differences from the respective ATM values. Source: Bloomberg. Andersen and Andreasen ... (2005), Wu and Zhang (2006) and Zhu (2007). In the second, commonly referred to as SABR, the LMMs by Henry-Labord`ere (2007), Rebonato (2007), Mercurio and Morini (2007) and Hagan and Lesniewski ... caplets and swaptions to the double-curve case. Section 6 introduces the extended lognormal LIBOR market model and derives the FRA and forward rates dynamics under different measures and the pricing...

Ngày tải lên: 15/03/2014, 07:20

... mistransmitted (Models 1, 3, 5), and how the N and V probabil- ities acquired by a given learner are coupled. In Model 1 there is no coupling (ˆα t and ˆ β t learned independently), in Models 2–3 coupling ... Harada, and R.P. Wayland. 2003. Factors affecting stress placement for English nonwords include syllabic structure, lexical class, and stress patterns of phonologically similar words. Language and ... Griffiths, and S. Lewandowsky. 2007. Iterated learning: Intergenerational knowl- edge transmission reveals inductive biases. Psycho- nomic Bulletin and Review, 14(2):288. M.H. Kelly and J.K. Bock....

Ngày tải lên: 17/03/2014, 00:20

... parser (Petrov and Klein, 2007). The formalism-based parser we use is the CCG parser of Clark and Curran (2007), which is based on CCGbank (Hockenmaier and Steed- man, 2007), a CCG version of ... Head-Driven Statistical Models for Natural Language Parsing. Ph.D. thesis, University of Pennsylvania. Julia Hockenmaier and Mark Steedman. 2007. CCGbank: a corpus of CCG derivations and dependency structures extracted ... research contribution, we refer readers to Clark and Curran (2007) and Petrov and Klein (2007) for details of the two parsers. 53 shows that converting gold-standard CCG deriva- tions into the GRs in DepBank...

Ngày tải lên: 17/03/2014, 02:20

... Theories and DATR Models Bill Keller School of Cognitive and Computing Sciences The University of Sussex Brighton, UK email: billk@cogs.susx.ac.uk Abstract Evans and Gazdar (Evans and Gazdar, ... sentences and it is said to be functional if it meets the following condition: 1The syntax presented in (Evans and Gazdar, 1989a; Evans and Gazdar, 1989b) permits nodes and paths to stand as ... Verb : 0, and similarly else- where. The theory defines the properties of seven nodes: an abstract Verb node, nodes EnVerb, Aux and Modal, and three abstract lexemes Walk, Mow and Can. Each...

Ngày tải lên: 17/03/2014, 09:20

... probabilistic extraction models and data mining to discover relations and patterns in text. Proceed- ings of HLT-NAACL, pages 296–303. E. Filatova and J. Prager. 2005. Tell me what you do and I’ll tell ... question and, there has been a plethora of work in the seed-based boot- strapping literature which addresses this problem (Ravichandran and Hovy, 2002; Thelen and Riloff, 2002; Mann and Yarowsky, ... transitive and latent models are all stand-alone models, they can complement each other in combination as they provide relatively orthogonal sources of informa- tion. To combine these models, we...

Ngày tải lên: 17/03/2014, 22:20

... ni.p + ti. p f (tl tn).gk'.rti + J_ ift n¢gk and for constraints (keeping in mind that implication and equiwdence are just shorthands): Rewriting Constraints lrue & c C false ... false if f k ~e gn if either v or v' is _1_ if v and v' are the same value v = v' + false if v and v' are atomic and v~v' f01 tn)=f(u~ un) tl=Ul & & tn=Un ... constraints have not been resolved and (b) the intermediate and final data structure are also partial descriptions, being potentially annotated with unresolved constraints, and denote not a single,...

Ngày tải lên: 18/03/2014, 02:20

... takes new tuples and a current state and out- put new tuples and a modified state and pass, prop, keep are three behavior functions that take punctua- tion marks and state as input and returns additional outputs ... etc.) always return a sequence of length one and they are all nonmonotonic, and therefore blocking. Continuous count and sum are monotonic and nonblocking, and thus suitable for continuous queries. Order! ... NOT(sno = 1 AND Next = ’rebate’) AND NOT(sno = 2 AND Next = ’cancel’) AND Next <> ’order’ UPDATE state SET sno = 1 WHERE Next=’order’; UPDATE state SET sno = sno+1 WHERE (sno = 1 AND Next...

Ngày tải lên: 23/03/2014, 12:20

... distressed firms and is unquestionably relevant to both small and large firms. Variable Selection After the initial groups are defined and firms selected, balance sheet and income statement ... mandatory by the FASF in 1987. (5) Goodwill and intangibles. Deducted from assets and equity because of the difficulty in assigning economic value to them. (6) Capitalized research and ... same maturity as the loan, and r-i will be somewhat higher - perhaps 2-4%. The relationship between r-i will vary over time and is particularly sensitive to the demand and supply equilibrium relationship...

Ngày tải lên: 23/03/2014, 17:44

... and translation models and on their combination with general models in order to achieve a proper balance be- tween precision (specialized in-domain models) and recall (general out-of-domain models) . ... proper cooperation between ‘EU’ and ‘WNG’ models. ‘EU’ models provides recall, for instance by suggesting translation candidates for ‘bombs’ or ‘price below’. ‘WNG’ models provide preci- sion, for ... configurations. ‘EU’ and ‘WNG’ refer to the models estimated from the Europarl corpus and the training set of parallel WordNet glosses, respectively. ‘D1’, and ‘D2’ denote the specialized language models estimated...

Ngày tải lên: 23/03/2014, 18:20

... relations in CCGbank than DepBank. In the previous example, CCGbank has a subject relation between it and consider, and also it and would, whereas DepBank only has the relation between it and consider. ... DepBank and CCG- bank and there are some sentences in DepBank which have been significantly shortened compared to the original Penn Treebank sentences. We mod- ified the CCGbank sentences — and the CCGbank analyses ... Treebank trees and 254 3 The CCG Parser Clark and Curran (2004b) describes the CCG parser used for the evaluation. The grammar used by the parser is extracted from CCGbank, a CCG version of the...

Ngày tải lên: 23/03/2014, 18:20

... Linguistics Collapsed Consonant and Vowel Models: New Approaches for English-Persian Transliteration and Back-Transliteration Sarvnaz Karimi Falk Scholer Andrew Turpin School of Computer Science and Information ... approaches, which we refer to as CV-MODEL1 and CV-MODEL2 re- spectively, partition these sequences using basic pat- terns (C and V) and main patterns (CC, CVC, VC and CV). In the training phase, transliteration ... Automatic translit- eration and back-transliteration by decision tree learning. In Conference on Language Resources and Evaluation, pages 1135–1411. Sarvnaz Karimi, Andrew Turpin, and Falk Scholer. 2006....

Ngày tải lên: 23/03/2014, 18:20

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Ngày tải lên: 24/03/2014, 14:21

Ngày tải lên: 29/03/2014, 13:20