Báo cáo khoa học: "Well-Nested Parallelism Constraints for Ellipsis Resolution" docx

... turns input text ~ format into standard format for discourse referents. Coreference [Semantic type matching 1 nalysis for [lbr pronouns J efinite NPS Hobbs naive lagreement for | algorithm ... especially problematic for designers of dialogue systems trying to pre- dict how anaphora resolution techniques devel- oped for written monologue will perform when adapted for s...

Ngày tải lên: 08/03/2014, 21:20

... Pinkal, 1995; Bos, 1996), parallelism constraints for modeling ellip- sis, and anaphoric links for modeling coreference. The interaction of ellipsis with scope (quantifier parallelism) is handled ... time. We argue that well-nested parallelism constraints are powerful enough to model ellipsis, in particular VP -ellipsis. We present a solver for well-nested parallelism con-...

Ngày tải lên: 08/03/2014, 21:20

... 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

... 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

... a considerable engineer- ing effort, yet there is very limited avail- ability of off-the shelf tools for researchers whose interests are not in coreference, or for researchers who want to concentrate ... standoff format of the MMAX2 annotation tool (M ¨ uller and Strube, 2006) with MiniDiscourse, a library that efficiently imple- ments a subset of MMAX2’s functions. Using a generic format...

Ngày tải lên: 20/02/2014, 09:20

... because independent training of the modality-specific classi- fiers forces them to account for data that they can- not possibly explain. For example, if the speaker is not gesturing meaningfully, it ... different set of feature weights for each case: w v,1 when the non-verbal features are included, and w v,2 otherwise. The formal definition of the potential function for conditional modal...

Ngày tải lên: 20/02/2014, 12:20

... assignment γ for a network N is a function from W ∪ S to the set P. Let γ be a polarity assignment for N. We say that γ is consistent if it satisfies the following condition for each w ∈ W: For p ∈ ... logic formulas, we can reduce it to C(s) = ¬s + ∨ ¬s − (1) For each word w with polarity p ∈ {−, +, 0 } in D we need a clause C(w, p) that states that w has polarity p. So, the Boolean...

Ngày tải lên: 07/03/2014, 18:20

... a mechanism for repetition and replacement ellipsis, an extension for inputs of different types, such as frag- mentary answers to questions, and an ex- tension for expansion ellipsis. 3.1 ... of au- tomatically interpreting ellipsis based on dialogue context. Our method expands on p~evious work by allowing for expansion ellipsis and by allowing for all combina- tions...

Ngày tải lên: 08/03/2014, 18:20

... performance. Table 6 shows the per- formance variations obtained by leaving out each feature in turn. Again, it can be seen that remov- ing both I and J SEMROLE induces a relatively high performance ... explored tech- niques for robust, broad coverage semantic pars- ing in terms of semantic role labeling (Gildea & Jurafsky, 2002; Carreras & M ` arquez, 2005, SRL henceforth). This pa...

Ngày tải lên: 08/03/2014, 21:20

... 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