Báo cáo toán học: "A MATRIX DYNAMICS APPROACH TO GOLOMB’S RECURSION" potx

... the 6 A MATRIX DYNAMICS APPROACH TO GOLOMB’S RECURSION Edward J. Barbeau, John Chew and Stephen Tanny Department of Mathematics University of Toronto Toronto, ON M5S 3G3 barbeau@math.utoronto.ca, ... that a similar approach will lead to a solution to (1) which is not eventually increasing. 4. Concluding remarks The matrix dynamics approach described in Section 2 can be a...

Ngày tải lên: 07/08/2014, 06:20

... volume computation. Let us return to our polytope t∆ d ⊆ R d and compute its Ehrhart polynomial. For this example, our inductive approach to computing volume works out well when translated to the discrete problem. ... 2 5  (the summands are called step-polynomials in [VW]). The only known way to compute such sums seems to be to first convert to a generating function using meth...

Ngày tải lên: 08/08/2014, 12:22

... alternative to these tree trimming approaches, sequence-oriented approaches have been proposed (McDonald, 2006; Nomoto, 2007; Hori and Furui, 2003; Clarke and Lapata, 2006). Nomoto (2007) and ... Syntax-Free Approach to Japanese Sentence Compression Tsutomu HIRAO, Jun SUZUKI and Hideki ISOZAKI NTT Communication Science Laboratories, NTT Corp. 2-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto...

Ngày tải lên: 08/03/2014, 00:20

... phenomenon, similar in spirit to one-anaphora, is illustrated by the following dialog:: USER 1: SYSTEM 1: USER2: I want to fly from Boston to Denver. <displays Boston to Denver flights> Which ... return flights from Denver to Boston, it is intuitively much less likely that the user means the "on Tuesday" constraint to continue to apply. The discourse h...

Ngày tải lên: 23/03/2014, 20:21

... applied to, the same, large body of text and a mapping de- rived from the distributions of the pair of tag-sets in the corpus. 2 Case Study In order to test this approach we attempted to map together ... EACL '99 A Corpus-Based Approach to Deriving Lexical Mappings Mark Stevenson Department of Computer Science, University of Sheffield, Regent Court, 211 Portobello S...

Ngày tải lên: 24/03/2014, 03:20

... exclusive. Each case corresponds to U 3 (i,j),(l,m) > 0 for one of the cases A-F above. The condition 1 corresponds to the case A, 2 to C, 3 to D, 4 to E and 5 to F. We have U 3 (i,j),(l,m) ≤ ... QU(H)Q −1 , for some permutation matrix Q. According to Definition 1, this fact is sufficient to ensure that G ∼ = H if and only if U(G)=QU(H)Q −1 , for some permutation matrix Q....

Ngày tải lên: 07/08/2014, 13:21

... adjacency matrix A = (a ij ) of G has entries a ij = 1 if u i u j ∈ E and a ij = 0 otherwise. We denote by j the (column) vector of R n with all its entries equal to 1. Hence, Aj is the vector of degrees ... perturbation of the matrix associated with G I that produces the matrix associated with G F can b e the electronic journal of combinatorics 18 (2011), #P172 4 matrices. Then, Au...

Ngày tải lên: 08/08/2014, 14:23

... converted to dependency trees us- ing Stanford Parser (Marneffe et al., 2006). We con- vert the tokens in training data to lower case, and re-tokenize the sentences using the same tokenizer from ... sensitive to parser er- rors; on the other hand, integrated model is forced to use a longer distortion limit which leads to more search errors during decoding time. It is possible to 9...

Ngày tải lên: 19/02/2014, 19:20

... differences hold to a lesser degree when a partial dictionary is provided. With MLHMM, different tokens of the same word type are usually assigned to the same cluster, but types are assigned to clusters ... HHTHHHTHHH (a) (b) Figure 1: The Bayesian approach to estimating the value of a latent variable, t, from observed data, w, chooses a value of t robust to uncertainty in θ. (a)...

Ngày tải lên: 20/02/2014, 12:20

... order to achieve statistical signifi- cance. Performance over a validation set was al- ways worse with larger history sizes than 1. 5 Conclusions We have described work towards an approach to ... is to enable the quality and nature of discussions that occur within an on-line discussion board to be communicated in a summary to a potential new- comer or group moderators. We pr...

Ngày tải lên: 20/02/2014, 12:20