Báo cáo toán học: "The complexity of constructing gerechte designs" potx

... electronic journal of combinatorics 16 (2009), #R15 8 The complexity of constructing gerechte designs E. R. Vaughan School of Mathematical Sciences, Queen Mary, University of London, UK e.vaughan@qmul.ac.uk Submitted: ... specialisation of latin squares. A gerechte skeleton of order n is an n × n array whose n 2 cells are partitioned into n regions containing n cells each....

Ngày tải lên: 07/08/2014, 21:21

... journal of combinatorics 18 (2011), #P49 2 The complexity of obtaining a distance-balanced graph Sergio Cabello ∗ Faculty of Mathematics and Physics , University of Ljubljana, and Institute of Mathematics, ... = 2(n − k). Furthermore, each of the 2(n − k) vertices of X must be incident to some of the n − k edges of F that are not incident to z, and thus the restriction of...

Ngày tải lên: 08/08/2014, 12:23

... practice, however, the space of align- ments has to be pruned severely using word align- ments to control the running time of EM. Notably, neither of these inference approaches of- fers any test to know ... sentence pair consists of two word sequences, e and f. A set of phrases {e ij } contains all spans e ij from between-word positions i to j of e. A link is an aligned pair of...

Ngày tải lên: 23/03/2014, 17:20

... 4 The complexity of DG Recognition Lombardo & Lesmo (1996, p.728) convey their hope that increasing the flexibility of their conception of DG will " imply the restructuring of some ... viewed as an ordered tree of depth one with node labels. Trees are combined through the identification of the root of one tree with a leaf of identical category of another tre...

Ngày tải lên: 24/03/2014, 03:21

... age of 74 years (SD = 15.0). A study of the TOAST classification of the type of strokes revealed an unusually high number of cardio-embolic strokes in our cohort (50.3%). The median number of ... dBP cutoff of 70 mmHg. Sixty-five percent of the cohort had dBP<70 mmHg sometime during the stay in ED. When this group was compared to those with dBP>70 mmHg, there The i...

Ngày tải lên: 20/06/2014, 20:20

Ngày tải lên: 20/06/2014, 21:20

... Institute of Education. She completed her doctoral studies at the Department of Linguistics, The University of Hong Kong in 2006. Her chief areas of research interests are related to the study of syntax, ... use of those common types of occupation should also be included in the cur- riculum design. The following section is a brief review of the status of Cantonese in Hong Ko...

Ngày tải lên: 20/06/2014, 21:20

Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 15:20