Báo cáo khoa học: "Semisupervised condensed nearest neighbor for part-of-speech tagging" pot

... neighbor. For part-of-speech tag- ging, the error reduction over condensed nearest neighbor is more than 40%, and our model is 40% smaller than the one induced by condensed nearest neighbor. ... to condensed nearest neighbor (Hart, 1968; Alpaydin, 1997) and showed that the algorithm leads to more condensed models, and that it performs significantly better than con- dens...

Ngày tải lên: 07/03/2014, 22:20

... unlabeled data resource. Our goal is to obtain better perfor- mance than a purely supervised approach without unreasonable computational effort. Unfortunately, although significant recent progress has ... hat-loss), which is non-convex. Therefore the objective as a whole is non-convex, making the search for global optimal difficult. Note that the root of the optimiza- tion difficulty for S3V...

Ngày tải lên: 08/03/2014, 01:20

... usually performed in a three-stage process (cf. Krenn (2000, 28-32) and references therein): 1. The source corpus is annotated with vary- ing amounts of linguistic information (rang- ing from part-of-speech ... evaluation of methods for extract- ing collocation candidates from large text corpora. Our research is based on a German treebank corpus used as gold standard. Results are availabl...

Ngày tải lên: 08/03/2014, 21:20

... im- portant for a variety of information-retrieval tasks; however, the lack of annotated data makes training query analysis models diffi- cult. We propose a simple, efficient proce- dure in which part-of-speech ... of techniques for selecting snippets associated with the query, as well as an evaluation of methods for align- ing the matching words in the query to those in the selected sn...

Ngày tải lên: 16/03/2014, 20:20

... plan for answering that P~ is not going shopping tonight. Applicability conditions are necessary conditions for appropriate use of a plan operator. For example, it is inappropriate for R ... coherence rules are used as a source of knowledge for generating hy- potheses. Hypothesis generation begins with ini- tializing the root of a tree of hypotheses with a proposition p0 to...

Ngày tải lên: 17/03/2014, 09:20

... 0.04. For the two parses of the full sentences contain- ing the NPs in figure 1 and figure 2, we sum over 7 POSParents and get a value of 0.27 for parse 1 and 0.11 for parse 2. The lower value for ... probabilities considered for the two En- glish parses are p(NP|NNS, NP) for “fruit” in both parses, p(VP|NNS, NP) for “flies” in the incorrect parse, and p(NP|NNS, NP) for “flies” in...

Ngày tải lên: 17/03/2014, 22:20

... 40-41] Contextual Analysis in Word -for- word MT Kenneth E. Harper, Slavic Department, University of California, Los Angeles EXPERIMENTS with word -for- word MT of Russian scientific literature ... disadvantage of word -for- word MT, then, is its prolixity: the reader is confronted with a burdensome multi- plicity of potential equivalents (syntactic and semantic) for several wor...

Ngày tải lên: 23/03/2014, 13:20

... the governing verb in a clause (non-local information). There- fore, while Icelandic case looks formally like Slavic and presents similar challenges for POS tagging, it also may be syntactically-determined, ... this new information. If an incorrect hypothesis is selected during train- ing, the algorithm promotes the score of the correct hypothesis and demotes the selected one. See Shen et a...

Ngày tải lên: 23/03/2014, 17:20

... intend _______ you that we cannot approve your application. (A) to inform (B) to informing (C) informing ( D ) infor m Figure 4: An example of generated question. Figure 5: An example of ... possessive case of the personal noun in English. The possessive form comprises an apostrophe and the letter “s”. For example, the possessive form of the personal noun “Mary” is “Mary’s”. The...

Ngày tải lên: 23/03/2014, 18:20

... into on- tological domains for modelling some forms of metaphors. • Types are not sufficiently 'constrained' to ac- count for the constraints holding, for each predicate, on the ... in particular for the Telic role, (explored e.g. in the EuroWordNet project, the European WordNet). Qualias are well-designed and useful for nouns, but look more artificial for other...

Ngày tải lên: 23/03/2014, 19:20