combines syntactic and semantic clustering

... Linguistics:shortpapers, pages 710–714, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics An Ensemble Model that Combines Syntactic and Semantic Clustering for Discriminative ... (Sagae and Lavie, 2006; Hall et al., 2007; Attardi and Dell’Orletta, 2009; Surdeanu and Man- ning, 2010), or their training is integrated, e.g. using stacking (Nivre and McDonald, 2008; Attardi and Dell’Orletta, ... scal- able though, since we can incrementally add a large number of clustering algorithms into the ensemble. 4 Syntactic and Semantic Clustering In our ensemble model we use three different clus- tering...

Ngày tải lên: 17/03/2014, 00:20

Ngày tải lên: 26/11/2013, 13:16

Ngày tải lên: 26/11/2013, 13:21

... 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 ... issue, noted above, is the problem of ambiguities and ambiguity preserving trans- fer. F-structures and UDRSs are underspecified syntactic and semantic representations, respec- tively. Both ... can be interfaced qua semantic representations: in our case the tested transfer methodology and resources developed in (Dorna and Emele, 1996a). References H. Alshawi and R. Crouch. 1992....

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 ... assumes 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 ... certain context. 117 Prosodic Aids to Syntactic and Semantic Analysis of Spoken English Chris Rowles and Xiuming Huang AI Systems Section Australia and Overseas Telecommunications Corporation...

Ngày tải lên: 20/02/2014, 21:20

... otherwise. (3) where s 1 a and s 2 b indicate the concatenation of the sequences s and t with the argument nodes, a and b, respectively and σ(h(a),h(b)) is 1 if the children of a and b are identical ... Association for Computational Linguistics Syntactic and Semantic Kernels for Short Text Pair Categorization Alessandro Moschitti Department of Computer Science and Engineering University of Trento Via ... In B. Sch¨olkopf, C. Burges, and A. Smola, editors, Advances in Kernel Methods. C. R. Johnson and C. J. Fillmore. 2000. The framenet tagset for frame -semantic and syntactic coding of predicate- argument...

Ngày tải lên: 22/02/2014, 02:20

... activations in fMRI and PET studies of episodic encoding and retrieval. Hippocampus, 9, 7–24. Syntax and Semantics with fMRI 363 Syntactic Violations Table I and Figs. 1 and 2 show that syntactic violations ... temporal and tem- poral-parietal) and encoding and/ or retrieval of semantic information (medial temporal regions and the left prefrontal cortex). The temporal lobe is known to be involved in semantic ... underlie semantic memory more generally, both in the encoding and retrieval of information, and in its long-term storage. 358 Newman et al. An Event-Related fMRI Study of Syntactic and Semantic...

Ngày tải lên: 07/03/2014, 17:20

... Linguistics Using Lexical Dependency and Ontological Knowledge to Improve a Detailed Syntactic and Semantic Tagger of English Andrew Finch NiCT ∗ -ATR † Kyoto, Japan andrew.finch @atr.jp Ezra Black Epimenides ... simple set of features: the article before; the POS before and after; the preposition before and after, and the syntactic category before and after the word be- ing labeled. The features used in ... treebankers, and between the treebankers and the ATR grammarian. The semantic catego- rization is, of course, in addition to an extensive syntactic classification, involving some 165 basic syntactic...

Ngày tải lên: 17/03/2014, 04:20

... auto- matic 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 ... 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 ... 43(3):209–226. Stephan Bloehdorn and Alessandro Moschitti. 2007a. Combined syntactic and semantic kernels for text clas- sification. In Gianni Amati, Claudio Carpineto, and Gianni Romano, editors,...

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. ... framework that integrates lexical, syntactic and semantic features to achieve this goal. Our system is language independent and we have implemented both Chinese and English versions for evaluation....

Ngày tải lên: 23/03/2014, 14:20

... performance of both syntactic and semantic parsing. This is promising and encouraging. To our best knowledge, this is the first research on exploring syntactic parsing and SRL for verbal and nominal ... of joint learning on syntactic and semantic parsing, Miller et al. (2000) and Finkel and Manning (2009) showed the effectiveness of joint learning on syntactic parsing and some simple NLP ... complexity of both syntactic and semantic parsing. To our best knowledge, this is the first suc- cessful research on exploring syntactic parsing and semantic role labeling for verbal and nomi- nal...

Ngày tải lên: 23/03/2014, 16:20

... the morphological and pho- nological level: (8)a. Kimgot lonelier and lonelier and lonelier. b. Kim got more and more and more lonely. c. *Kim got lonelier and more lonely and lonelier. This ... SCC') Assume that there are two basic semantic types, and B, and that 4" andS" are constants denoting entities of types A and B respectively. ~, ~, and are cross-categorlal operators. ... Pauline, and Pullum, Geoffrey K., eds. (1982) Th_._ee Nature of Syntactic Representation. D. Reidel, Dordrecht, Holland. Lakoff, George, and Peters, Stanley (1969) 'Thrasal conjunction and...

Ngày tải lên: 24/03/2014, 01:21

... Combining Lexical, Syntactic, and Semantic Features with Maximum Entropy Models for Extracting Relations Nanda Kambhatla IBM T. J. Watson Research Center 1101 ... syntactic and semantic fea- tures derived from the text. Our system obtained competitive results in the Automatic Content Ex- traction (ACE)evaluation. Herewe present our gen- eral approach and ... that combine diverse lexical, syntactic and semantic features. Our results indicate that us- ing a variety of information sources can result in improved recall and overall F measure. Our ap- proach...

Ngày tải lên: 31/03/2014, 03:20

... mentioned above and that of Gibson and Wexler (1994), Siskind (1992) Sakas and Fodor (2001), and Yang (2002). These all evaluate their learners on the basis of a small number of predefined syntactic ... general combinatory schemata and a functional mapping from semantic type to syntactic category. Further- more, this paper is the first to evaluate a model of child syntactic- semantic acquisition by ... Work Models of syntactic acquisition, whether they have addressed the task of learning both syn- tax and semantics (Siskind, 1992; Villavicencio, 2002; Buttery, 2006) or syntax alone (Gibson and Wexler,...

Ngày tải lên: 31/03/2014, 20:20

... hotter and hotter. Let’s look at the examples • They have increased the price of shirts and decreased the price of trousers. They  Agentive subject • The price of shirts has increased and that ... growing Affected indirect object I paid her a visit = I visited her Affected Affected Effected Semantic roles of clause elements       Affected direct object A participant ... Minister Agentive Subject Animate causer of the happening John opened the door. (The most typical semantic role of a subject is AGENTIVE; that is, the animate being instigating or causing the...

Ngày tải lên: 12/07/2014, 10:20

Ngày tải lên: 26/11/2013, 13:16

... MEDLINE abstract; see details in (Demner-Fushman and Lin, 2005; Demner-Fushman and Lin, 2006 in press). 4.2 Semantic Clustering Retrieved MEDLINE citations are organized into semantic clusters based on the main ... answering, information retrieval, and summa- rization. We employ answer extraction to identify short answers, semantic clustering to group sim- ilar results, and extractive summarization to pro- duce ... extensive cov- erage of drugs, falling under the semantic type PHARMACOLOGICAL SUBSTANCE and a few oth- ers. All such entities are identified as candidates and each is scored based on a number of features: its...

Ngày tải lên: 20/02/2014, 12:20

... machine learning techniques, e.g. SNoW (Li and Roth, 2005), where questions are encoded us- ing various lexical, syntactic and semantic features. The retrieval and answer extraction phases consist ... convolution kernels for depen- dency and constituent syntactic trees. In ECML’06. S. Quarteroni and S. Manandhar. 2006. User modelling for Adaptive Question Answering and Information Retrieval. In FLAIRS’06. E. ... introduces a viable ap- proach based on tree kernels. 3 Syntactic and Semantic Kernels for Text As mentioned above, encoding syntactic/ semantic information represented by means of tree structures in...

Ngày tải lên: 20/02/2014, 12:20

Ngày tải lên: 26/11/2013, 13:16

Ngày tải lên: 26/11/2013, 13:16