Báo cáo khoa học: "Phrase Clustering for Discriminative Learning" pptx

... paradigm for parallel programming (Dean and Ghemawat, 2004). The most straightforward MapReduce implementation of K-Means would be to have mappers perform Step ii and reducers perform Step ... same information as our 1-word window clusters. We therefore expect it to produce mostly categorical clusters. 2.6 Soft clustering Although K-Means is generally described as a hard clust...

Ngày tải lên: 23/03/2014, 16:21

... Transforming the entire for- est to n-ary form is intractable, however, because the number of hyperedges would be exponential in n. Instead, we include only the top k n-ary back- traces for each forest ... Collapsing Binarization To facilitate a change in binarization, we transform the translation forest into n-ary form. In the n-ary forest, each hyperedge corresponds to an original gramm...

Ngày tải lên: 20/02/2014, 09:20

... Equivalents. If the new form is a form of a word in the old glossary, the Eng- lish equivalents previously used are carried forward. If no form of the word has occurred before, the linguist assigns ... different occurrences of the same form. Research Methodology 9 10 Edmundson and Hays Word: a form that represents a set of forms differing only in inflection. For example, "...

Ngày tải lên: 07/03/2014, 18:20

... the Association for Computational Linguistics, pages 171–175, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics Syntactic Stylometry for Deception Detection Song ... node, e.g., PRPˆNP 4 → “you”. 4 Experimental Results For all classification tasks, we use SVM classi- fier, 80% of data for training and 20% for test- ing, with 5-fold cross vali...

Ngày tải lên: 07/03/2014, 18:20

... the Association for Computational Linguistics, pages 1239–1248, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Consistent Translation using Discriminative ... Introduction Translation consistency is an important factor for large-scale translation, especially for domain- specific translations in an industrial environment. For example, in the tr...

Ngày tải lên: 07/03/2014, 22:20

... for linguistic formalisms. For lack of space, some proofs are omitted; an extended version is avail- able as a technical report (Wintner, 1999). 2 Grammar semantics Viewing grammars as formal ... of grammatical formalisms. For the following discussion fix a particular grammar G = (n,E,A~). Definition 5. Let Tc : Z -+ Z be a trans- formation on sets o.f items, where .for every...

Ngày tải lên: 08/03/2014, 06:20

... number of standard devices are available for coding the incoming text for insertion into the machine and, after the translation process is completed, for decoding and printing the translation ... its original form, the dissection scheme for endings and compounds can be tried; if this fails, the word can be printed through without alteration. Several methods are available for...

Ngày tải lên: 16/03/2014, 19:20

... of verbs; the converse problem is for- mally similar. More generally, the theoretical ba- sis for our method supports the use of clustering to build models for any n-ary relation in terms of ... object clusters for fire CLUSTERING EXAMPLES All our experiments involve the asymmetric model described in the previous section. As explained there, our clustering procedure yields...

Ngày tải lên: 17/03/2014, 08:20

... Retrieval models for question and answer archives. In Proceed- ings of SIGIR, pages 475-482. C. Zhai and J. Lafferty. 2001. A study of smooth meth- ods for language models applied to ad hoc information retrieval. ... the Association for Computational Linguistics, pages 653–662, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Phrase-Based Translati...

Ngày tải lên: 20/02/2014, 04:20

... There- fore, performing the clustering with a vocabulary that is large enough to cover the many named entities required to improve the accuracy of NER is difficult. We enabled such large-scale clustering ... weight for each gazetteer match regardless of whether it is an NE or not. 2.2 EM-based Clustering using Dependency Relations To learn p(n|c) and p(c) for Japanese, we use the EM-...

Ngày tải lên: 20/02/2014, 09:20