Báo cáo khoa học: Protein database searches using compositionally adjusted substitution matrices docx

... MINIREVIEW Protein database searches using compositionally adjusted substitution matrices Stephen F. Altschul, John C. Wootton, E. Michael Gertz, ... (1992) Exhaus- tive matching of the entire protein sequence database. Science 256, 1443–1445. S. F. Altschul et al. Compositionally adjusted substitution matrices FEBS Journal 272 (2005) 5101–5109 ... Performance eval...

Ngày tải lên: 07/03/2014, 21:20

... Randomly initialize U and V, and normalize them 2: repeat 3: Update U using Eq. (3); 4: Update V using Eq. (4); 5: Compute  f using Eq. (2); 6: until  f converges. 3.2 Algorithm Procedure The ... interpreta- tions. Many if not all of the sentence scores are computed using various heuristics as few re- search efforts have been reported on using genera- tive models for document summ...

Ngày tải lên: 23/03/2014, 17:20

... fingerprints were submitted to a search at the NCBI protein database using mascot 4 (http://www. matrixscience.com). For unambiguous identification of the proteins, tandem MS analysis was performed on ... the G 1 phase [11]. Keywords atypical protein kinase; casein kinase 2 substrate; cell-cycle phase-dependent degradation; protein protein interactions; Rio1 protein kinase 2 1 Corre...

Ngày tải lên: 18/02/2014, 16:20

... and method. • TRG: The models were trained using only the real-error corpus (baseline). • SRC: Trained using only the pseudo-error corpus. • ALL: Trained using the real-error and pseudo- error corpora ... erro- neous particles by substitution, insertion, and deletion. The error correction task is hindered by the difficulty of collecting large error cor- pora. We tackle this problem by...

Ngày tải lên: 19/02/2014, 19:20

... achieves better performance by only using WordNet synonym, hypernym and similar to rela- tions. Adding co-occurrence statistics slightly im- proved performance, while using glosses did not help at ... handful of seeds is used to define the two polarity classes. The method is exper- imentally tested using a manually labeled set of positive and negative words. It out- performs the state of...

Ngày tải lên: 20/02/2014, 04:20

... “ and he wrote it ” is compared with the word “ﺐﺘﻛ” “ he wrote ” using the EWM method the resulting score will be 0, but when using the CCC method it will be 0.667. The CCC method comes from ... have shown the effectiveness of using charac- ter cross-correlation in choosing the best headline out of nominated sentences from Arabic document. The advantage of using character cross-...

Ngày tải lên: 20/02/2014, 05:20

... 5–8, Columbus, June 2008. c 2008 Association for Computational Linguistics Generating research websites using summarisation techniques Advaith Siddharthan & Ann Copestake Natural Language and Information ... stylesheets are often considered inappropriate for diverse organisations. Research summary pages using stylesheets can offer alternative methods of information access and browsin...

Ngày tải lên: 20/02/2014, 09:20

... to rerank the results obtained using an existing machine learning based parsing method showed that our method can im- prove the accuracy of the results obtained using the existing method. 1 Introduction Dependency ... r, and verb v) by using probabilistic latent semantic indexing (PLSI) (Hofmann, 1999) 5 . If n, r, v is the co-occurrence of n and r, v, we can calculate P (n, r, v)...

Ngày tải lên: 20/02/2014, 12:20

... The clustering result using K-means; (c) Three elongated clusters in the 2D clustering space using Spectral clustering: two dominant eigenvectors; (d) The clustering result using Spectral-based ... main stages: 1) Transformation of Clustering Space (Step 1-4); 2) Clustering in the transformed space using Elongated K-means algorithm (Step 5-6). 2.3 Transformation of Clustering Space We...

Ngày tải lên: 20/02/2014, 12:20

... result. In our experiment, we compared the k-means, NMF, the ensemble method using a standard hyper- graph and the ensemble method using a weighted hypergraph. Our method achieved the best results. 2 ... as follows: Repeating the procedure produces a total of four matrices from four clustering results. Connecting these four partial matrices, we obtain the following matrix, which is the...

Ngày tải lên: 20/02/2014, 12:20