Báo cáo khoa học: "F-PATR: FUNCTIONAL CONSTRAINTS FOR UNIFICATION-BASED GRAMMARS" pptx

... Transduction Grammar or ITG formalism, described in (Wu, 1997), is well suited for our purposes. ITGs per- form string-to-string alignment, but do so through a parsing algorithm that will allow us to inform the objective ... grammar in this formalism: A → [AA] | AA | e/f This grammar enforces its own weak cohesion constraint: for every possible alignment, a corre- sponding binary consti...

Ngày tải lên: 08/03/2014, 02:21

... disturbing elements. As for morphol- ogy, verbs are expanded with all their tense forms (i.e. present, present continuous, past tense and past participle). Synonyms and morphological forms are added ... before, AltaVista was used as search engine. A baseline for the answer validation experiment was defined by considering how often an answer oc- curs in the top 10 documents among those (100...

Ngày tải lên: 08/03/2014, 07:20

... bottom-up information. The top-down information is available through a left- corner resp. head-corner table, which turn out to be quite informative for this grammar. The head-corner parser performs ... step, thus leading to inferior performance. Bottom-up parsing is far more attractive for lexi- calist formalisms, as it is driven by the syntactic in- formation associated with lexi...

Ngày tải lên: 09/03/2014, 01:20

... An Improved Parser for Data-Oriented Lexical -Functional Analysis Rens Bod Informatics Research Institute, University of Leeds, Leeds LS2 9JT, UK, & Institute for Logic, Language and ... frag- ment size is confirmed for LFG-DOP; (3) LFG- DOP's relative frequency estimator performs worse than a discounted frequency estimator; and (4) LFG-DOP significantly outperforms Tree- DOP...

Ngày tải lên: 20/02/2014, 18:20

... incu- bated for 4 days with each of the peptides (10 lm), and cells were fixed and used for immunocytochemical analyses. Immunocytochemistry Neurons were fixed in 4% paraformaldehyde for 20 min at ... to transformed Ca 2+ -competent E. coli cells (ER2566) by heat shock. The transformed cells were spread on LB agar plates containing ampicillin (50 mgÆL )1 ), single colonies were picked fo...

Ngày tải lên: 18/02/2014, 13:20

... responsible for the content or functionality of any supplementary materials supplied by the authors. Any queries (other than missing material) should be directed to the corre- sponding author for the ... resulted in the formation of 20,23-di- hydroxyvitamin D3 (RT = 30 min) and trihydroxyvi- tamin D3 (RT = 22 min) (Fig. 4A). A small lag (0– 3 min) was seen in the time course for formati...

Ngày tải lên: 18/02/2014, 17:20

... double peak for TTr. The m ⁄ z values and suggested protein identities are: 13762, the common form of TTr; 13881, the common form of TTr disulfide-linked to cysteine; 13792, a variant form of TTr ... TTr. Many plasma proteins are present in multiple forms. For example, ApoC1 is present as the full-length pro- tein (m ⁄ z ¼ 6632) and as a truncated form lacking N-terminal Thr-Pro [19,20] (m...

Ngày tải lên: 19/02/2014, 05:20

... context in- formation at the sentence level, we adopt the topical context information in our method for the following reasons: (1) the topic informa- tion captures the context information beyond the ... a novel approach for translation model adapta- tion by utilizing in-domain monolingual top- ic information instead of the in-domain bilin- gual corpora, which incorporates the topic in- fo...

Ngày tải lên: 19/02/2014, 19:20

... labelled information for training. Our sys- tem extracts transliteration pairs in an unsupervised fashion. It is also able to utilize labelled information if available, obtaining improved performance. We ... of the Association for Computational Linguistics, pages 469–477, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics A Statistical Model for...

Ngày tải lên: 19/02/2014, 19:20

... available for choosing values for these parameters. For En- glish we use the parameters reported in (Liang, 1983). For Dutch we use the parameters reported in (Tutelaers, 1999). Preliminary informal ... train- ing sets for English and Dutch from the CELEX European lexical resource, and achieve error rates for English of less than 0.1% for correctly allowed hyphens, and less than...

Ngày tải lên: 20/02/2014, 04:20