Báo cáo khoa học: "Growing Semantic Grammars" ppt

... view. On the one hand it is clear that a sentence can receive various structures according to the semantic, syntactic, morphological or phonological point of view. On the other hand these differ- ent ... independent from each other and even if they are not structures on the same objects (for instance the semantic units do not correspond one to one to the syn- tactic units, that is the...

Ngày tải lên: 08/03/2014, 02:21

... semantics. Also, the hand- crafting of resources covering the huge amounts of content which are required for deep semantic processing is highly inefficient and expensive. Co-occurrence-based semantic ... serious lim- itations, however: While semantic information is typically encoded in phrases and sentences, distri- butional semantics, in sharp contrast to logic-based semantics, does not...

Ngày tải lên: 07/03/2014, 22:20

Ngày tải lên: 18/02/2014, 16:20

... equivalents to pinpoint the field or fields of science to which the scientific meanings of certain semantic units of the source language belong. (The term "se- mantic unit" will be explained

Ngày tải lên: 19/02/2014, 19:20

... sufficient to discriminate between forward entailment and semantic equivalence. To cope with these issues, we explore the contribution of syntactic and semantic features as a complement to lexical ones ... entries, our model builds on two additional feature sets, derived from i) semantic phrase tables, and ii) dependency relations. Semantic Phrase Table (SPT) matching repre- sents a no...

Ngày tải lên: 19/02/2014, 19:20

... syntactic and semantic features could provide clues to the semantic role label of a constituent, non- local features such as predicate voice could provide information about the expected semantic role ... ordering. 1 Introduction Unsupervised semantic role induction has gained significant interest recently (Lang and Lapata, 2011b) due to limited amounts of annotated corpora. A Semantic...

Ngày tải lên: 19/02/2014, 19:20

... argue that semantic features can be a complement of statis- tical method. 3.3 Semantic Feature Representation and Re-ranking As stated before, we utilize search engine to enrich semantic features ... consider co-occurrence aspect. We want to add semantic features. Sahami and Hel- man (2006) utilize search engine to supply web queries with more semantic context and gains bette...

Ngày tải lên: 20/02/2014, 04:20

... cross-linguistic variation, and so are likely to be learned by human learners. It’s also plausible that semantics and con- textual information is less important for their acqui- sition than, say, syntax. 2

Ngày tải lên: 20/02/2014, 09:20

... be linked into formal semantic repositories such as ontologies or term banks like WordNet (Fellbaum 1998). Pantel (2005) defined the task of ontologizing a lexical semantic resource as linking ... complex lexi- cal structures like binary semantic relations, the paper focused only on attaching terms. Basili (2000) proposed an unsupervised method to infer semantic classes (WordNe...

Ngày tải lên: 20/02/2014, 12:20

... related semantic classes • Demonstration that dependency parser paths are inadequate for semantic classification into 7 WordNet classes on TREC news corpora • A benchmark of 10-class semantic ... se- mantic type. We show that the techniques used to perform binary semantic classification do not work as well when extended to a full n-way semantic classifi- cation. We show that using a va...

Ngày tải lên: 20/02/2014, 12:20