Báo cáo khoa học: "AN LR CATEGORY-NEUTRAL PARSER WITH LEFT CORNER PREDICTION" pdf

... AN LR CATEGORY-NEUTRAL PARSER WITH LEFT CORNER PREDICTION Paola Merlo University of Maryland/Universit~ de Gen~ve ... this model adopts a mixed parsing procedure, by using left corner prediction in a modified LR parser. ON LINGUISTIC THEORY For a parser to be linguistically motivated, it must be transparent ... shown in (2). s (2) Tix$ixA~xCixPT~ * T~xSjxA.~xCj...

Ngày tải lên: 23/03/2014, 20:20

... it is sentences within passages; for transla- tions × passages, it is translations × sentences within passages. The within-cells mean square is the error term for sentences within passages ... differentiates within sets of human translations and within sets of mechanical translations. Results from the two scales are highly correlated, and these in turn are highly correlated with readin...

Ngày tải lên: 19/02/2014, 19:20

... proper_name(N) :- nonvar(N) . /* unifies with chart/l */ unifies with chart(S) :- chart(S). /* add to chart/2 */ add to chart(S, nonchart) :- verify(unifies _with_ chart(S)), add to chart(S, nonchart) ... unified with a lexical entry. apply(FunctorActive,ResulO implements the rules of forward and backward functional application as discussed above. generate(Sign) generates...

Ngày tải lên: 09/03/2014, 01:20

... called Rule Repositories, with the format shown in Figure 3. Each rule consists of three parts: i) a left- hand side, ii) a right-hand side, iii) a probability that the left- hand side entails (or ... Entailment Engines in different ways (see Section 4.4). Pre-defined basic components are already pro- vided with EDITS, allowing to create a variety of entailment engines. Fast prototyping...

Ngày tải lên: 17/03/2014, 00:20

... 421 2 Parser architecture The parser proceeds incrementally from left to right, with one item of look-ahead. Nodes are expanded in a standard top-down, left- to-right fashion. The parser ... point that, with the RB0 grammar, this parser is now a viable broad- coverage statistical parser, with good coverage, accuracy, and efficiency 4. Next we considered the left-...

Ngày tải lên: 20/02/2014, 19:20

... and we take the HILDA discourse parser (Her- nault et al., 2010b) as the basis of our work, because it is the first fully implemented text-level discourse parser with state-of-the-art performance. ... Here we briefly review two fully implemented text-level discourse parsers with the state-of-the-art performance. The HILDA discourse parser of Hernault and his colleagues (duVerle and Pr...

Ngày tải lên: 07/03/2014, 18:20

... VE. BVE works by segmenting the corpus repeatedly, with each new segmentation incorporating knowl- edge gained from previous segmentations. As with many bootstrapping methods, three essential com- ponents ... generated a set of candidate segmentations with PtM, VE, and BVE, as described in the previous section. From each set of candidates, results for the segmentation with minimal des...

Ngày tải lên: 30/03/2014, 21:20

... Amsterdam rens@scs.leeds.ac.uk Abstract We present an LFG-DOP parser which uses fragments from LFG-annotated sentences to parse new sentences. Experiments with the Verbmobil and Homecentre corpora show that ... whose c-structure is labeled with the initial category. At each subsequent step, a next fragment is chosen at random from among the fragments that can be composed with the curr...

Ngày tải lên: 20/02/2014, 18:20

... over T in general. 1With this convention, we can no longer distinguish between different leaves in the grammar with the same terminal label. This merging of leaves with identical la- bels ... steps of the LR au- tomaton, which as usual reads input from left to right and manipulates a stack. We can divide the stack elements into two classes. One class contains the LR state...

Ngày tải lên: 20/02/2014, 18:20

... formalism from Pollard and Sag (1987) and Shieber (1986). 2 The LR Parsing Algorithm The LR parser is an efficient shift-reduce parser with optional lookahead. Parse u'ees for input strings ... new problem unique to the LR parser. After the parser assigns a constituent structure in Fig.4 during parsing, it would consult the GOTO table for the next state with the...

Ngày tải lên: 22/02/2014, 10:20