Báo cáo khoa học: "Finding Word Substitutions Using a Distributional Similarity Baseline and Immediate Context Overlap" potx

... the head ‘rescue’, and lemma:failing arg:ARG1 var:bank which indicates that the argument of ‘failing’ is ‘bank’. Note that any tree can be transformed into a feature for a particular lexical item ... that combine both pattern- based and feature vector approaches have also been presented. Lin et al. (2003) and Pantel and Ravichandran (2004) have proposed to classify the output of s...

Ngày tải lên: 08/03/2014, 21:20

... Latin ancestor, parameterized by transformations ϕ  and survival variables S  . Languages shown are Latin (LA), Vulgar Latin (VL), Proto-Iberian (PI), Italian (IT), Portuguese (PT), and Spanish ... and Malay, to see if similar patterns hold there, too. Some authors have attempted to automatically detect cognate words (Mann and Yarowsky, 2001; Lowe and Mazaudon, 1994; Oakes, 2000;...

Ngày tải lên: 17/03/2014, 00:20

... candidate pairs are chosen from a large search space. To cope with this problem, a candidate pair is usu- ally chosen so that both words are inside a context (‘collocational’) window of a small ... done at the end of the extraction process, but separately for each stage: after the candidate selection stage, for evaluating the quality (in terms of grammati- cality) of candidates prop...

Ngày tải lên: 17/03/2014, 04:20

... solutions are compli- cated, consist of several stages and hand- built features, and are too slow to be applied as part of real applications that require such semantic labels, partly because of ... locational or temporal information relative to some verb. Shallow semantic parsing has immediate applica- tions in tasks such as meta-data extraction (e.g. from web documents) and question...

Ngày tải lên: 17/03/2014, 04:20

... Lexical Chain Features 4.1 Chain starts and ends We follow (Chan et al. 2007) to model the lexi- cal chain starts and ends at a story boundary with a statistical distribution. We apply a window ... consideration and statistically modeled. 2 Experimental Setup Experiments are conducted using data from the TDT-2 Voice of America Mandarin broadcast. In particular, we only use...

Ngày tải lên: 23/03/2014, 17:20

... (Heinonen, 1998) and Utiyama and Isahara (Utiyama and Isa- hara, 2001). Finally, other researchers use probabilistic ap- proaches to text segmentation including the use of hidden Markov models (Yamron et al., 1999), ... following Halliday and Hasan's theory (Halliday and Hasan, 1976), utilize statistical similarity measures such as word cooccurrence. For example the linea...

Ngày tải lên: 31/03/2014, 20:20

... standard name approach was taken by the KAMP system. The standard name assumption has two difficul- ties. First, it is extremely implausible to believe that an agent has a unique name for anything ... This approach to language generation emphasizes the view of language as action, and hence assigns a critical role to prag- matics. The noun phrases under consideration in this paper...

Ngày tải lên: 21/02/2014, 20:20

... workshop, Kappa values measured for inter- and intra-annotator agreement for rank and constituent are substantially higher than those for adequacy and fluency, indicating that rank and con- stituent are ... uses a large collection of paraphrases, automatically ex- tracted from parallel corpora, to evaluate MT per- formance. To compare a pair of sentences, ParaE- val first locates pa...

Ngày tải lên: 08/03/2014, 01:20

... pDU-PABP(s) EarI-catgaaccccagtgcc 7 pDU-RBDII(s) EarI-catggatgttataaagggc 8 pDU-RBDIII(s) EarI-catgggacgatttaagtct 9 pDU-RBDIV(s) EarI-catggaacagatgaaacaa 10 pDU-PABPC(s) EarI-catggagcgccaggctcac 11 pDU-IMP1(s) ... PABP, and surpris- ingly we have found that both polypeptides bind strongly to a 22 nucleotide long CCCAAAAAAA UUUACAAAAAA sequence located at the 3¢ end of the ARS. Furthermor...

Ngày tải lên: 23/03/2014, 10:20

... Madison, WI, USA) were used as primary and secondary antibodies. The absorbance was measured using a microplate reader (GMI, Inc., Albertville, Minne- sota, USA) and softmax software (Molecular ... revealed that one 65 kDa band from the 0.1 m NaCl eluate is synapto- tagmin, as indicated by comparison with a positive control of rat brain tissue extract and synaptosomal protein extr...

Ngày tải lên: 23/03/2014, 13:20