Báo cáo khoa học: "An Incremental Connectionist Phrase Structure Parser" potx

... An Incremental Connectionist Phrase Structure Parser James Henderson* U. of Pennsylvania, Dept of Computer and Information ... roughly the same computational proper- ties as neurons. The parser recovers the phrase struc- ture of a sentence incrementally from beginning to end and is intended to be a plausible model of ... always be an:unheaded node. Node labels are feature stru...

Ngày tải lên: 23/03/2014, 20:20

... texts characterized by rigid structure, relative abundance of surface markers and straightforwardness. Relatively few attempts have been made at summarizing less structured genres, some of them ... from The Gift of the Magi by O. Henri. 1a is an example of pronominal anaphora, where the noun phrase (further NP) Della is re- ferred to as an antecedent and both occurrences of the pronoun .....

Ngày tải lên: 24/03/2014, 03:20

... should be disambiguated to dative. Obviously, such a rule actually identifies a PP and some of its structure. Following the observation that both tasks, mor- phosyntactic tagging and partial constituency

Ngày tải lên: 31/03/2014, 01:20

... HEAD-DRIVEN PHRASE STRUCTURE GRAMMAR Derek Proudlan and Carl Pollard Hewlett-Packard Laboratories 1501 Page Mill Road Palo Alto, CA. 94303, USA Abstract The Head-driven Phrase Structure Grammar ... information from phrase structure rules into the lexi- con [5]. This wholesale lexicalization of linguistic infor- mation in HPSG results in a drastic reduction in the number...

Ngày tải lên: 31/03/2014, 17:20

... the toolkit. 3.1 Phrase Extraction and Reordering Model We use a standard way to implement the phrase extraction module for the phrase- based model. That is, we extract all phrase- pairs that ... sides were 22 BLEU4[%] Entry Dev Test Moses: phrase 36.51 34.93 Moses: hierarchical phrase 36.65 34.79 phrase 36.99 35.29 hierarchical phrase 37.41 35.35 parsing 36.48 34.71...

Ngày tải lên: 19/02/2014, 20:20

... table of phrase pairs. This phrase table is traditionally gen- erated by going through a pipeline of two steps, first generating word (or minimal phrase) alignments, then extracting a phrase table ... gener- ate a phrase pair from the phrase pair distribution, falling back to ITG-based divide and conquer strat- egy to generate phrase pairs that do not exist (or are given low proba...

Ngày tải lên: 20/02/2014, 04:20

... nu- Figure 1. The general Vietnamese key phrase extraction model. Key phrases Patterns Ontology ViO &ViDic Key phrases extraction Candidate phrases identif i cation Vietnamese ... such as noun phrases. In order to accom- plish the noun phrases recognition, we have de- veloped over 434 patterns of noun phrase groups that cover proper noun constructs. 5.3 Key phras...

Ngày tải lên: 08/03/2014, 01:20

... the task is to decide whether the prepositional phrase headed by the preposition with attaches to the noun phrase (NP) headed by salad or the verb phrase (VP) headed by ate. In the first sentence, ... words. Introduction Prepositional phrase attachment is a common source of ambiguity in natural language processing. The goal is to determine the attachment site of a prepositional phras...

Ngày tải lên: 08/03/2014, 05:20

... no-disambiguation for the ten most frequent ambiguous structures (1) ambiguous Maximal-Length Noun Phrase (MLNP) structure (2) total number of MLNP with this structure on the half-a-million words test ... sub-groups to extract from a MLNP on the basis of grammatical structure. Some of the MLNP structures are non-ambiguous : given such a structure it can be stated with a very hi...

Ngày tải lên: 09/03/2014, 01:20

... low (L), p( attachment I phrase) . Results shown come from a development corpus of 500 phrases of extracted head word tuples from the WSJ TreeBank [MSM93]. 64% of these phrases attach low and ... TreeBank [MSM93]. 1 Introduction The coordinate phrase (CP) is a source of struc- tural ambiguity in natural language. For exam- ple, take the phrase: box of chocolates and roses &apos...

Ngày tải lên: 23/03/2014, 19:20