760 research outputs found
Subspace identification of 1D spatially-varying systems using Sequentially Semi-Separable matrices
No full textWe consider the problem of identifying 1D spatially-varying systems that exhibit no temporal dynamics. The spatial dynamics are modeled via a mixed-causal, anti-causal state space model. The methodology is developed for identifying the input-output map of e.g a 1D flexible beam described by the Euler-Bernoulli beam equation and equipped with a large number of actuators and sensors. It is shown that the static input-output map between the lifted inputs and outputs possess a so-called Sequentially Semi-Separable (SSS) matrix structure. This structure is of key importance to derive algorithms with linear computational complexity for controller synthesis of large-scale systems. A nuclear norm subspace identification method of the N2SID class is developed for estimating these state space models from input-output data. To enable the method to deal with a large number of repeated experiments a dedicated Alternating Direction Method of Multipliers (ADMM) algorithm is derived. It is shown in this paper that a nuclear norm relaxation on the SSS structure can be imposed which improves the estimates of the system matrices.Accepted Author ManuscriptTeam Raf Van de Pla
Author, landscape and communication in Estonian haiku
No full textPresent article tries to give insight into the ways in which Estonian haiku models its author and communicates with the reader. The author thinks that while Japanese haiku is a predominantly autocommunicative piece of literature, where even a fixed point of view is not recommended, Estonian literary conventions are oriented towards openly communicational texts, which convey a fixed axiology and rely on abundant use of pronouns and rhetorical questions, addresses and apostrophes. While there is a considerable amount of Estonian haiku that depend on Estonian literary conventions, most of the Estonian haiku texts, however, are oriented to the Japanese model. These texts have been labelled “the catalogues of landscape”, as they are constituted by naming different landscape objects without developing a line of narration. Thereby every landscape element in poetry is granted its own voice, and through this multitude of voices inside the text, the reader is forced to enter an autocommunicative process of remodelling him/herself
Barthes’s positive theory of the author
No full textWhile it is well known that Roland Barthes consecrated his last lecture series at the Collège de France to the theme of the preparation of a novel, it is less known that his first writings on literature focused on the same question, but from a less individual point of view. The interrogation that motivates Le Degré zéro de l’écriture (1953) and many of the essays in Essais critiques (1964) is the question of how to write, of what procedures one can follow in preparing a literary work of art. At the two ends of Barthes’s career one finds the same themes of writing as action and of the writer’s possibilities and motivations in writing. The article explores the hypothesis that there is ground for a positive theory of the author in Barthes’s work. It seeks to discover similarities between writings from the early and the late period that concern three themes: (1) writing as action, (2) the deferral of its achievement, and (3) writing as representation. The article ends with a discussion on the relationships between Barthes’s positive theory of the author and related important issues that have been discussed recently in literary criticism
Pearson’s correlation coefficients of the four syndrome groups between the SID-SSS and the ED-SSS in Taipei City, 1 January, 2010 to 31 August, 2011.
No full text<p><b>SID-SSS</b>: School-based Infectious Disease Syndromic Surveillance System</p><p><b>ED-SSS</b>: Emergency Department-based Syndromic Surveillance System</p><p><b>Correlation</b>: Pearson’s correlation coefficient</p><p><b>EVI:</b> enterovirus-like illness; <b>ILI</b>: influenza-like illness</p><p>Semester 1 (Week 8–26, 2010) Semester 2 (Week 35, 2010-Week 3, 2011) Semester 3 (Week 7–26, 2011)</p><p><b>LNY</b>: Lunar New Year, <b>SMV</b>: Summer Vacation</p><p><b>**.</b> Correlation was significant at the 0.01 level (2-tailed).</p><p><b>*.</b> Correlation was significant at the 0.05 level (2-tailed).</p><p><b>N.A.:</b> Cannot be computed since none of the variables is constant in the SID-SSS.</p><p>Pearson’s correlation coefficients of the four syndrome groups between the SID-SSS and the ED-SSS in Taipei City, 1 January, 2010 to 31 August, 2011.</p
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