Báo cáo khoa học: "Randomized Algorithms and NLP: Using Locality Sensitive Hash Function for High Speed Noun Clustering" pdf

... Association for Computational Linguistics Randomized Algorithms and NLP: Using Locality Sensitive Hash Function for High Speed Noun Clustering Deepak Ravichandran, Patrick Pantel, and Eduard Hovy Information ... Locality Sensitive Hash Function; 2. Performance of fast Hamming distance search algorithm; 3. Quality of final simi- larity lists. 5.1 Evaluation of...

Ngày tải lên: 08/03/2014, 04:22

... tree. Formally, for every s between 1 and n the triple (s,s, ws) E T. • The tree is binary branching and consistent. Formally, for every (s,t, X) in T, s ¢ t, there is exactly one r, Y, and ... maximum, mean, and standard deviation for three criteria, Consis- tent Brackets Recall, Consistent Brackets Tree, and 1For our experiments the corpus was slightly cleaned up....

Ngày tải lên: 20/02/2014, 22:20

... oxygen species (ROS) formation, elevated intracellular calcium concentration and mitochondrial demise is a recurring theme in research focusing on brain pathology, both for acute and chronic neurodegenerative ... mediated ROS formation through the respiratory chain; i.e. both complex I and KGDHC are in equilibrium with the NAD(P)H ⁄ NAD(P) + ratio, and therefore interdepend- ent on...

Ngày tải lên: 07/03/2014, 12:20

... June 2008. c 2008 Association for Computational Linguistics Language Dynamics and Capitalization using Maximum Entropy Fernando Batista a,b , Nuno Mamede a,c and Isabel Trancoso a,c a L 2 F ... corpora for training. The evaluation is performed over newspaper corpora using dif- ferent testing periods. The achieved results reveal a strong relation between the capital- ization perfo...

Ngày tải lên: 17/03/2014, 02:20

... K m for ethanol and it is responsible for the hepatic ethanol metabolism [7]. ADH2 and ADH3 are not active at moderate concentrations of ethanol [7,8]. ADH4 has high K m and k cat values for ... with IMAGE PROPLUS software and imported into Adobe PHOTOSHOP v5.5 (Adobe). Color images were transformed into black and white images using a grey-scale function, and brightness...

Ngày tải lên: 23/03/2014, 17:22

... Alaska delayed interception." The symbol b stands for blank, ax-1; for article, adj for adjec- tive, p for preposition, n for noun, and v for verb. The syntactic classes are assigned by ... days, and it was foreseen that the cost of training for 10-20 thousand rules would be prohibitive. This led us to investigate the hypothesis that storing a context -sensitive...

Ngày tải lên: 31/03/2014, 06:20

... This is higher than the 85.2% that Goldwater and Griffiths (2007) ob- tain using Bayesian methods for inferring both POS tags and hyperparameters. It is much higher than the 82.4% that standard ... sets for English. system accuracy (%) Standard EM 82.4 + random restarts 84.5 (Goldwater and Griffiths, 2007) 85.2 our approach 87.4 + random restarts 87.1 Table 1: MAP-EM with a L0 norm ac...

Ngày tải lên: 07/03/2014, 22:20

... alternations and their se- mantic effects (Resnik, 1996; Tenny, 1994), and for selecting tense and lexical items for natural language generation ((Dorr and Olsen. 1996: Klavans and Chodorow, ... alter- nations and their semantic effects (Resnik, 1996; Tenny, 1994), and selecting tense and lexical items for natural language gen- eration ((Dorr and Olsen, 1996; Kl...

Ngày tải lên: 22/02/2014, 03:20

... calculate – – – Repeat for = 1 to Choose Set Update one parameter, for – – – for , – for , – for – – – for , – for , – For all features whose values of and/ or have changed, recalculate Output Final parameter ... , , and . The val- ues for and would be and (these features are derived from The and Lennon, which re- spectively do and don’t appear in the capitalizati...

Ngày tải lên: 17/03/2014, 08:20

Ngày tải lên: 25/10/2012, 10:45