Báo cáo khoa học: "Transfer Learning, Feature Selection and Word Sense Disambguation" doc

... Singapore, 4 August 2009. c 2009 ACL and AFNLP Transfer Learning, Feature Selection and Word Sense Disambguation Paramveer S. Dhillon and Lyle H. Ungar Computer and Information Science University ... given word sense from “simi- lar” word senses. Learning this prior for feature relevance of a test word sense makes those fea- tures that have been selected in the...

Ngày tải lên: 17/03/2014, 02:20

... splitting feature spaces and the number of features to be allocated for each group. Random and Dimension mean random-split and dimen- sion-based-split, respectively. When the criterion 566 is Random, ... the current position and the left and right 5 positions. Partial Word Flags P -3 , …, P +3 Partial word flags at the current position and the left and right 3 positi...

Ngày tải lên: 17/03/2014, 04:20

... neighboring con- texts: collocational features and bag-of-words fea- tures. For collocational features, we set a window of three words to the right and left of the target word. 4.2 Evaluation methodology We ... for the most frequent sense (majority sense) , we take Step 3a and use the highest ranked instances as seeds; for the rest of the senses (minority senses), we take Step 3b...

Ngày tải lên: 20/02/2014, 04:20

... kinematic signal on one end and the word- sequence or surgical act on the other—is very desirable. Except for some early work on isolated word/ digit recognition (Paliwal and Kulkarni, 1987; Wilpon et ... s into two states s 1 and s 2 . Among the N states, select and and split the one that yields the most gain in LL. 3. If the gain is above a threshold, retain the split and set N...

Ngày tải lên: 08/03/2014, 01:20

... signalosome and 26S proteasome interaction X. Huang et al. 3912 FEBS Journal 272 (2005) 3909–3917 ª 2005 FEBS the anti-CSN2 Ig revealed two bands, the Flag-CSN2- Rpn6 (upper band) and the endogenous ... gradient centrifugation and subsequent western blots revealed that the Flag-CSN2 sediments into the same fractions as the CSN. In Fig. 1A, middle panel, two bands are seen with the anti-...

Ngày tải lên: 20/02/2014, 01:20

... at position i is determined by the word boundaries to the left and right of i. 3 We set the interpolation weights for the word and n-gram LM as (0.9, 0.1). The word- based LM is constructed from ... decipherment method combines information from both sources— letter n-grams and word dictionaries. We build an interpolated word+ n-gram LM and use it to assign P (p) probabilities...

Ngày tải lên: 07/03/2014, 22:20

... into two non-terminals, L and R, to represent genera- tors for left modifiers and right modifiers respec- tively. Then split L into ¯ L and ˆ L, for generators that produce straight and inverted left modifiers. We ... results in terms of alignment quality, using the standard word align- ment error metrics: precision, recall, F-measure and alignment error rate (Och and Ney, 2003). O...

Ngày tải lên: 08/03/2014, 21:20

... clearly different from glutaredox- in and PDI. SDS ⁄ PAGE analysis gave a single band at 31 kDa and K m values of 0.25 and 2.8 mm were repor- ted for DHA and GSH, respectively. The enzyme had ... operons ulaABCDEF and ulaG encode proteins allowing the uptake of ascorbate and its conversion to d-xylulose 5-phosphate and CO 2 (Fig. 5C). They are both regula- ted by the nearby ulaR...

Ngày tải lên: 16/03/2014, 12:20

... and helices 2 and 3 (Library 2) were randomized and introduced into the chorismate mutase selection system. Second, the successful clones from the initial libraries were crossed (Library 3) and subjected ... did the selection for proper folding of the initially randomized helices with the wild type template. A sequential strategy of randomizing helix 1 first and then randomizing...

Ngày tải lên: 19/02/2014, 12:20

... al., 1990; Ziegler and Goswami, 2005) and of Chi- nese, e.g., (Lee et al., 2005), and is important for both young readers (Ho and Bryant, 1997; Lee, 2009) and adult readers (Lin and Collins, 2012). ... class (i.e., grades 1 and 2), middle class (i.e., grades 3 and 4), or upper class (i.e., grades 5 and 6) and (2) speed level: the duration between the monsters’ poppin...

Ngày tải lên: 19/02/2014, 19:20