Báo cáo khoa học: "A Comparison of Document, Sentence, and Term Event Spaces" potx

... two journals and reduced the number of documents by 2,432. We made the following comparisons between the document, sentence, and term event spaces. (1) Raw term comparison A set of well-correlated ... Computational Linguistics A Comparison of Document, Sentence, and Term Event Spaces Catherine Blake School of Information and Library Science U...

Ngày tải lên: 17/03/2014, 04:20

... actions: Selection of a pair of words wo E V1 and vo E V2, and a head transducer 3,10 to start the entire derivation. Selection of a pair of dependent words w I and v ~ and transducer M I ... a event e and a context c. The context c is an equivalence class of states un- der which an action is taken, and the event e is an equivalence class of actions possibl...

Ngày tải lên: 24/03/2014, 03:21

... each of these parsing alternatives? Each of these four questions is addressed in the four subsequent sections of this paper, fol- lowed by a discussion of the implications of our findings and ... training and testing corpus of 400 sentences each contain- ing an inflection of one of four target verbs (100 each), namely believe, think, give, and receive. These sentenc...

Ngày tải lên: 20/02/2014, 12:20

... Un- fortunately, the usefulness of their beam search solution is limited: potential alignments are con- structed explicitly, which prevents a perfect search of alignment space and the use of algorithms like EM. ... ITGs, and provide a formulation for the number of structures that can be built for a sentence pair of size n. ITGs explore almost all of permutation space when n is...

Ngày tải lên: 08/03/2014, 21:20

... whose types match the right- hand side of a grammar rule to a phrase of the type of the left-hand side of the rule. To make a reduction possible, all the right-hand-side phrases have to be present. ... the number of edges produced. The motivation for this is that the working of a chart parser is tightly centered around the production and manipulation of edges, and that...

Ngày tải lên: 09/03/2014, 01:20

... if accuracy is of primary concern, then Mate should be preferred; 12 however, Berkeley parser offers a trade-off between accuracy and speed. If neither parser satisfies the demands of a practical ... data only and exclude gen- eration of basic Stanford dependencies (for constituent parsers) and part -of- speech tagging (for dependency parsers). 3 Results Table 3 tabulates efficiency...

Ngày tải lên: 23/03/2014, 14:20

... Computational Linguistics A Comparison of Loopy Belief Propagation and Dual Decomposition for Integrated CCG Supertagging and Parsing Michael Auli School of Informatics University of Edinburgh m.auli@sms.ed.ac.uk Adam ... Proceedings of ACL- 08: HLT. W. Jiang, L. Huang, Q. Liu, and Y. L ¨ u. 2008. A cas- caded linear model for joint Chinese word segmen- tation and part -of-...

Ngày tải lên: 23/03/2014, 16:20

... Multinomial Model The multinomial event model assumes that a doc- ument d i of length d i is generated by a sequence of I d7 word events, where the outcome of each event is a word from the vocabulary ... total number of word occurrences in ej, and the total number of occurrences of w t , respectively. Let d(c) = En P(c i ld i ) denote the number of documents in ej...

Ngày tải lên: 31/03/2014, 20:20

... of the EACL 2009 Demonstrations Session, pages 25–28, Athens, Greece, 3 April 2009. c 2009 Association for Computational Linguistics A comparison of clausal coordinate ellipsis in Estonian and ... Department University of Koblenz-Landau Koblenz, Germany harbusch@uni-koblenz.de Mare Koit & Haldur Õim Research Group of Computational Linguistics University of Tartu Tart...

Ngày tải lên: 31/03/2014, 20:20

... Bru- cellacapt and Coombs tests in terms of sensitivity and specificity in the diagnosis and follow-up of brucello- sis and it was concluded that the results were similar in the follow-up of patients ... similar results to those of Coombs anti-brucella test. This test is a useful test by virtue of the fact that it determines blocking antibodies in the diagnosis and fol...

Ngày tải lên: 25/10/2012, 10:56