Báo cáo khoa học: "Adding Noun Phrase Structure to the Penn Treebank" ppt

... to supply an NP as the answer to a factoid question, often us- ing a parser to identify candidate NPs to return to the user. If the parser never generates the correct sub-NP structure, then the ... Force is given ORG tags, the tool suggests that they be bracketed together first. Other suggestions come from previous bracketings of the same words, which helps to keep...

Ngày tải lên: 23/03/2014, 18:20

... applying these to CCGbank NP structures rather than the Penn Treebank, the POS tag based heuristics are sufficient to determine heads accurately. 337 Finally, we assign supertags to the new structure. We ... for the child nodes, depending on whether neither, the left, the right or both nodes span the entire NE. As an example, if the Air Force constituent were being jo...

Ngày tải lên: 31/03/2014, 00:20

... 2009. Conundrums in noun phrase coreference resolution: Making sense of the state- of -the- art. In Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th In- ternational ... Specifically, based on the corefer- ence decisions it has made in the first i− 1 levels of the tree, the algorithm determines at the ith level whether the ith NP sho...

Ngày tải lên: 07/03/2014, 22:20

... of the overall performance of the coreference system. On the other hand, if the model is too conservative, then only a small fraction of the truly non-anaphoric NPs will be identified, and so the ... sets demonstrate the ef- fectiveness of our approach. 1 Introduction Noun phrase coreference resolution, the task of de- termining which noun phrases (NPs) in a text refer t...

Ngày tải lên: 31/03/2014, 03:20

... each other in a variety of ways, including their topic, the read- ing level of their intended audience, and their in- tended purpose (eg, to instruct, to inform, to ex- press an opinion, to summarize, ... There is no one “right set”. 3 Genre in the Penn TreeBank Although the files in the Penn TreeBank (PTB) lack any classificatory meta-data, leading the PTB to be treated...

Ngày tải lên: 30/03/2014, 23:20

... model: the gold tree is a noun phrase which ends with the sequence CC/non-nominal modifier /noun; the gold tree is a structured coordinate noun phrase where each word in the noun phrase is a noun. 9 Call these ... and the head of the phrase is (usu- ally) the rightmost noun in the phrase. Thus, when n2 is immediately followed by another noun the de- fault...

Ngày tải lên: 31/03/2014, 01:20

... (PP [to] ), VP[INF,AGRI] (11) The absence of a controlling category allows the CAP to link the AGR values of the mother and VP[INF] predicate daughter. The HFC then links the AGR values of the ... constructions, [SLASH NP] only marks the path from the NP gap to the V~[INF]/NP dominating to please, failing to continue through the AP easlt to please t...

Ngày tải lên: 31/03/2014, 17:20

... from those behind the uttering of " ;the smallest of the red pieces?", where the hearer is expected to physically identify the piece. According to the theory, the speaker ' s ... " ;the other way around", " ;the top is the bottom". ) Requests -to- pick-up (RPUP) (e.g., "take the blue base".) Requests-for-identification (...

Ngày tải lên: 21/02/2014, 20:20

... involved in the regulation of genes participating in cholesterol biosynthesis and low-density lipoprotein receptor synthesis [1,2]. They are now estab- lished as global regulators of lipid synthesis. ... are syn- thesized and located on the endoplasmic reticulum (ER) membrane in their precursor form. To exert transcrip- tional activities, the active N-terminal region of the bHLH nee...

Ngày tải lên: 18/02/2014, 13:20

... factors to the a-globin gene locus dur- ing the differentiation of erythroid cells. The regula- tory elements located upstream of the a-globin genes also appear to initiate the activation of the ... appear to spread outward in both directions to the genes it controls. This is identical to the observed appearance of these marks at the LCR of the globin locus in ES...

Ngày tải lên: 07/03/2014, 12:20