Báo cáo khoa học: "Parsing the Wall Street Journal with the Inside-Outside Algorithm" potx

... taken from the Wall Street Journal corpus using the inside-outside algorithm for stochastic context-free grammars. The initial grammar for the inference process makes no ,assumption of the kinds ... grammar inference experiments with this algorithm from the parsed Wall Street Journal corpus. 341 The experiments prove the feasibility and effectiveness of t...

Ngày tải lên: 01/04/2014, 00:20

... hE. 2The transformation rules are a device to represent the karaka charts more compactly. However, as is obvious, they affect the karaka charts and not the parse structure. There- fore, they ... in the sen- tence. The Paninian framework is similar to the broad class of case based grammars. What distinguishes the Paninian framework is the use of karaka re- lations rath...

Ngày tải lên: 08/03/2014, 07:20

... of the internal aldimine of PLP [35]. PLP is a probe of the active site environment, and the tauto- meric distribution therefore reflects the active site polarity. The deprotonated form of the ... influences the b-lytic activity of the enzyme. In fact, both the wild type and the mutant are able to eliminate chloride from BCA, with the pro- duction of ammonia and pyruvate...

Ngày tải lên: 06/03/2014, 00:21

... d and z d-e. Intuitively the relation between the words of the sentences should be symmetric and there should be the same WA. It is possible to enforce the symmetry with zij = zed. zdeij, ... that the information about the class of a word w has much information about the class of the following word w'. We want for the WCs used for translation that the info...

Ngày tải lên: 08/03/2014, 05:21

... both the c-structure and the f-structure of the parse. For example, the WSJ’s ADJP-PRD la- bel must correspond to an AP in the c-structure and an XCOMP in the f-structure. In this version of the corpus, ... linguistically fine-grained hand- coded grammars to the UPenn Wall Street Journal (henceforth WSJ) treebank (Marcus et al., 1994). The problem of grammar coverage, i...

Ngày tải lên: 23/03/2014, 20:20

... 189,244. We then ran the new language ID algorithm on the IGTs, and Table 1 shows the language distribution of the IGTs in ODIN according to the output of the algorithm. For instance, the third ... the crawled documents as ungrammatical (usually with an asterisk “*” at the beginning of the language line). Those IGTs are kept in ODIN too because they could be useful to ot...

Ngày tải lên: 22/02/2014, 02:20

... present in the LSP grammar. Figure 1 shows a sample definition and the triples the parser found in it. ABDOMEN 0 1 N THE PART OF THE BODY BETWEEN THE THORAX AND THE PELVIS (THE) pmod (PART) ... extracted the set of intransitive verb definitions, suspecting that these would be the easiest to work with. This is the smallest of the four major 219 W7 part of spe...

Ngày tải lên: 08/03/2014, 18:20

... is set to be 1. On the other hand, if the new edge is a phrase or word with internal structures, the probability is set according to (2), while the head word is found with the appropriate head ... because we split the words with internal structures into their components, comparison with other systems should be viewed with that in mind. Based on these discussions, we divi...

Ngày tải lên: 17/03/2014, 00:20

... they are not. With unaries, the linear terms in the reduced equation are significant over these sentence lengths and drag down the exponent. The linear terms are larger for NO- TRANSFORM and therefore ... there can be many alignments which differ only in the spans of the categories, but line up the same tags with the same words. However, there will be a certain number of un...

Ngày tải lên: 17/03/2014, 07:20

... auxiliary tree with a root of same category. The descendants of X then become the descendants of the foot node of the auxiliary tree. Contrary to context-free rewriting rules, the history of ... of derivation trees : 1. Prefer the derivation tree with the fewer number of nodes 2. Prefer to attach an m-tree low 6 3. Prefer the derivation tree with the fewer numb...

Ngày tải lên: 17/03/2014, 07:20