Báo cáo khoa học: "Large Scale Acquisition of Paraphrases for Learning Surface Patterns" potx

... Proceedings of ACL-08: HLT, pages 674–682, Columbus, Ohio, USA, June 2008. c 2008 Association for Computational Linguistics Large Scale Acquisition of Paraphrases for Learning Surface Patterns Rahul ... pre-computes paraphrases for a large set of surface patterns using distributional sim- ilarity over a large corpus and then obtains patterns for a relation by simp...

Ngày tải lên: 23/03/2014, 17:20

... seman- tic forms induced by our method for sections 0–24 of the WSJ section of the Penn-II treebank. When we do not distinguish semantic forms by category, all semantic forms together with those for ... 0.007 accept([subj,obj,obl :for] ) 1 0.007 accept([subj,obj,xcomp]) 1 0.007 Table 1: Semantic Forms for the verb accept marked with p for passive use. 4 Results We extract non-empt...

Ngày tải lên: 17/03/2014, 06:20

... a method of choosing appropriate values for the setting function δ of the active set and for the constant value ω of the inactive set. These two problems are closely related. The size of the active ... All of our model variants were based on Sparse model. For the hyper parameter , we empir- ically selected 0.001 for Method 1 (this preserves 99% of probability density), 0...

Ngày tải lên: 23/03/2014, 17:20

... phase for an MOI of 0.1, 1 and 10, but usually lagged behind at a MOI of 0.01. As a lower MOI requires less viral inoculate, which is a strong advantage for large -scale cultures, a number of parameters ... stability required the use of dodecylmaltoside as a detergent in the presence of a high concentration of NaCl and of a suitable inverse agonist. Efficient purification of...

Ngày tải lên: 30/03/2014, 14:20

... model outperforms the n-gram model for both types of classification, and achieves the same per- formance as the discriminative system of Foster et al. (2008), which is state -of- the-art for this data ... University. 968 Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, pages 959–968, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Associ...

Ngày tải lên: 19/02/2014, 19:20

... 5: Person-X Evaluation of Pairwise model: Performance as number of machines is varied, aver- aged over 5 runs. Number of Entities 43,928 Number of Mentions 1,567,028 Size of Largest Entity 6,096 Average ... component of many knowl- edge discovery tasks has inspired several efforts. A number of previous techniques use scoring functions between pairs of contexts, which are then...

Ngày tải lên: 07/03/2014, 22:20

... only evaluated for three hand-picked classes, with preci- sion scores of 90% for names of countries, 87% for fish species and 68% for instances of constellations. Our evaluation of the accuracy of class ... clusters of queries based on vectors {V} 04. For each cluster of phrases S in {S} 05. {C S } = ∅ 06. For each query Q of S 07. Insert labels of Q from {M E } i...

Ngày tải lên: 08/03/2014, 01:20

... paper, we present some results of our ex- periments of Kana-to-Kanji conversion, focusing on the usage of large scale collocation data. In chapter 2, descriptions of the collocations used in ... Experiments 4.1 Text Data for Evaluation Prior to the experiments of Kana-to-Kanji conver- sion, we prepared a large volume of text data by hand which is formally a set of tri...

Ngày tải lên: 08/03/2014, 05:21

... automated approach for the acquisition of relative pronoun disambiguation heuristics that duplicates the performance of hand- ceded rules. Unfortunately, extending the technique for use with unrestricted ... Agency of the Department of Defense monitored by the Air Force Office of Scientific Research under Contract No. F49620-88-C-0058. 7 REFERENCES Brent, M. (1991). Aut...

Ngày tải lên: 08/03/2014, 07:20

... gas mileage for the class of sports cars). Existing work on large -scale attribute extraction focuses on producing ranked lists of attributes, for target classes of instances available in the form of flat ... original sets of labeled classes, of 53% for E s and 304% for E a . 4.2 Evaluation of Attributes Target Hierarchy Concepts: The performance of attribute extractio...

Ngày tải lên: 08/03/2014, 21:20