transforming syntactic graphs semantic graphs

... COMPUTING SEMANTIC GRAPHS FROM SYNTACTIC GRAPHS 49 An important test of the utility of syntactic graphs is to demonstrate that they can be used di- rectly to compute corresponding semantic graphs ... conclusion, we have presented a computa- tional method for directly computing semantic graphs from syntactic graphs. The most crucial and economical aspect of the computation is the 53 capability ... our current emphasis is on the procedures for transforming graphs. 51 subject(I) arc between lives and monkey numbered (1) in Figure 3 is semantically plausible since an- imal can be...

Ngày tải lên: 08/03/2014, 18:20

Ngày tải lên: 26/11/2013, 13:16

Ngày tải lên: 26/11/2013, 13:16

Ngày tải lên: 26/11/2013, 13:21

... transfer on the semantic UDRS representations does not suffer from such prob- lems. Head switching is dealt with in the con- struction of semantic representations. Under- specified semantic representations ... mismatches and semantic ambiguity. We first show how the underlying machinery of the semantic- based transfer approach de- veloped in Dorna and Emele (1996b) can be ported to syntactic f-structure ... underspecified syntactic and semantic representations, respec- tively. Both support ambiguity preserving trans- fer to differing degrees (NP scope, operators, adjuncts). F-structure based syntactic...

Ngày tải lên: 20/02/2014, 18:20

... used to limit the range of syntactic pos- sibilities and the parser will align tone group and move syntactic boundaries at a later stage. By integrating syntax and semantics, the Parser is ... that the input move is lexically correct and tries to obtain a parse for it, employing syntactic and semantic relaxation techniques for handling ill-formed sentences (Huang 1988). If no acceptable ... analysed at the pragmatic stage. The output of the parser is a parse tree that contains syntactic, semantic and prosodic fea- tures. Most ambiguity is removed in the parse tree, though some...

Ngày tải lên: 20/02/2014, 21:20

... capture shallow semantic properties. 3.1 Shallow Semantic Structures Shallow approaches to semantic processing are making large strides in the direction of efficiently and effectively deriving tacit semantic ... (SVMs) and kernel methods applied to automatically generated syntactic and semantic structures. In particular, we designed (i) a new Semantic Role Kernel (SRK) based on a very fast algorithm; (ii) ... important property for modeling shallow semantics similarity. 4 Experiments Our experiments aim at studying the impact of our kernels applied to syntactic/ semantic structures for the detection...

Ngày tải lên: 22/02/2014, 02:20

... lexical/ semantic processing in language is hypothesized to rely upon similar neural systems as does conceptual -semantic knowledge more generally. Overall, our findings indicate that syntactic and semantic ... Hippocampus, 9, 7–24. Syntax and Semantics with fMRI 363 Syntactic Violations Table I and Figs. 1 and 2 show that syntactic violations elicited greater activation than semantic anomalies in a number ... in syntactic and semantic processing. Healthy adult males read well-formed sentences randomly inter- mixed with sentences which either contained violations of syntactic structure or were semantically implausible....

Ngày tải lên: 07/03/2014, 17:20

... 2008) for the list of cluster-based feature templates. The clusters inject long distance syntactic or semantic in- formation into the model (in contrast with the use of POS tags in the baseline) ... for complex features that in- clude n-grams. 3 The Ensemble Model A word can have different syntactic or semantic cluster representations, each of which may lead to a different parsing model. We ... into a more powerful model. In this paper, we construct the base models based on different syntactic/ semantic clusters used in the features in each model. Our ensemble parsing model is a linear...

Ngày tải lên: 17/03/2014, 00:20

... access to accurate syntactic information; however, it is not necessarily constrained to accept this choice of syntax. Rather, it is able to decide both syn- tax and semantics while taking semantic context into ... baseline for the experiments in this pa- per. The semantic tags we use can be seen as a form of semantic categorization acting in a similar manner to the semantic class of a word in the sys- tem of ... treebankers and the ATR grammarian. The semantic catego- rization is, of course, in addition to an extensive syntactic classification, involving some 165 basic syntactic tags. The test corpus has...

Ngày tải lên: 17/03/2014, 04:20

... 2010. Syntactic/ semantic structures for textual entailment recognition. In HLT-NAACL, pages 1020–1028. Alessandro Moschitti. 2006. Efficient convolution ker- nels for dependency and constituent syntactic ... verb classification according to VerbNet and FrameNet. We define syntactic and semantic struc- tures capturing essential lexical and syntactic prop- erties of verbs. Then, we apply similarity between 263 VerbNet ... the similarity function acting over syntactic structures and this allows for generalizing selection restrictions through a sort of (supervised) syntactic and semantic co-clustering. The verb classification...

Ngày tải lên: 23/03/2014, 14:20

... plagiarism by exploiting lexical, syntactic and semantic features that includes duplication-gram, reordering and alignment of words, POS and phrase tags, and semantic similarity of sentences. ... taken as semantics of a document. We use LDA to obtain the topic distribution of a query and a candidate snippet, and compare the cosine similarity of them as a measure of their semantic similarity. ... Summary of related works Comparing to those systems, our system exploits more sophisticated syntactic and semantic information to simulate what plagiarists are trying to do. There are several...

Ngày tải lên: 23/03/2014, 14:20

... allows uncertainty about syntactic parsing to be carried forward to semantic parsing but also al- lows useful information from semantic parsing to be carried backward to syntactic parsing. This ... learning of syntactic and semantic parsing for Chinese texts from two levels. Firstly, an integrated parsing approach is proposed to benefit from the close interaction between syntactic and semantic ... integrating semantic parsing into the syntactic parsing process. Secondly, various se- mantic role-related features are directly incorpo- rated into the syntactic parsing model to better capture semantic...

Ngày tải lên: 23/03/2014, 16:20

... of dependencies syntactically, but as Pull,-, and Gazdar (1982, section 5) show, this does not make the stringset non-context-free. It is a semantic problem rather than a syntactic one. In ... infinite number of distinct semantic categories, is permissible. Despite the efforts of Barbara Hall Partee and other scholars who have written on constraining the Moutague semantics framework over ... Nor should it be surprising that those syntactic theories that build into the syntax a power that amply suffices to achieve a suitable syntax-to- semantics mapping have no trouble accommodating...

Ngày tải lên: 24/03/2014, 01:21

Ngày tải lên: 31/03/2014, 03:20

Ngày tải lên: 31/03/2014, 20:20

Ngày tải lên: 12/07/2014, 10:20

... components, such as semantic relation, semantic class and semantic role are adopted in the semantic dependency graph (Gildea and Jurasfky, 2002; Hacioglu and Ward, 2003). The semantic relations ... extracting the semantic objects by reasoning plays a more important role for the dia- log systems. This research proposes a semantic dependency-based discourse model to capture and share the semantic ... in the user’s utterance using the semantic dependency graphs. Dependency relation between the headword and other words in a sentence is detected using the semantic dependency grammar. In order...

Ngày tải lên: 08/03/2014, 02:21

... by their semantic lexicon learner were not present in Word- Net. Automatic semantic lexicon acquisition could be used to enhance existing resources such as Word- Net, or to produce semantic lexicons ... methods have been developed for automatic semantic class identification, under the rubrics of lexical acquisition, hyponym acquisition, semantic lexicon induction, semantic class learn- ing, and web-based ... generate lists of words that be- long to a given semantic class (e.g., lists of FISH or VEHICLE words). Weakly supervised learning methods for semantic lexicon generation have uti- lized co-occurrence...

Ngày tải lên: 17/03/2014, 02:20

... Syntactic Graphs and Constraint Satisfaction Jeff Martin Department of Linguistics, University of Maryland ... satisfaction algorithms. I then describe briefly a modular parsing algorithm which constructs a syntactic graph using a set of generative operations and applies a filtering algorithm to eliminate ... picture such predicates as specifying a path which must be unifiable in the directed acyclic graphs representing the categories X and Y. Before presenting the outline of a parsing algorithm...

Ngày tải lên: 23/03/2014, 20:20