Academic literature on the topic 'Convex mirror'

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Journal articles on the topic "Convex mirror"

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Watanabe, Takeo, Tsuneyuki Haga, Masahito Niibe, and Hiroo Kinoshita. "Design of beamline optics for EUVL." Journal of Synchrotron Radiation 5, no. 3 (May 1, 1998): 1149–52. http://dx.doi.org/10.1107/s0909049597017536.

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The design of front-end collimating optics for extreme-ultraviolet lithography (EUVL) is reported. For EUVL, collimating optics consisting of a concave toroidal mirror and a convex toroidal mirror can achieve shorter optical path lengths than collimating optics consisting of two concave toroidal mirrors. Collimating optics consisting of a concave toroidal mirror and a convex toroidal mirror are discussed. The design of collimating optics for EUVL beamlines based on ray-tracing studies is described.
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Mazzae, Elizabeth N., W. Riley Garrott, and Anthony J. Cacioppo. "Utility Assessment of Side Object Detection Systems for Heavy Trucks." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 38, no. 9 (October 1994): 466–70. http://dx.doi.org/10.1177/154193129403800903.

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Side object detection systems (SODS) alert drivers to the presence of traffic alongside their vehicle within a defined detection zone. Their intent is to reduce lane changing and merging collisions. The effect of right SODS on the safety related behavior of commercial vehicle drivers was examined in this study. Eight subjects drove a tractor-semitrailer equipped with four different sets of right SODS or mirrors. Subjects were tested with two right SODS (a radar-based system, and an ultrasonic-based system), a fender-mounted convex mirror, and, for comparison, standard side view mirrors. For each case, subjects drove the test vehicle through a set route for one day. The effect of these systems on driver behavior and the extent to which safety may be improved by implementing SODS were assessed based upon the correctness of responses and verbal response times to Right Clear questions, and upon subject glance fixations and durations. A debriefing questionnaire was used to acquire subjects' opinions about the SODS. Driver performance with SODS was not significantly improved over that observed with standard side view mirrors. Analysis of the correctness of responses to Right Clear questions showed that subjects' accuracy in assessing the traffic situation along the right side of the vehicle was not improved by the SODS, but was improved by the fender-mounted convex mirror. Verbal response times to Right Clear questions were significantly lower with the SODS and fender-mounted convex mirror than with standard mirrors. This difference may have resulted from a learning effect caused by presenting the standard mirrors first to each subject. Glance data showed that subjects only sometimes visually sampled the SODS displays. Responses to debriefing questionnaires indicated that subjects were receptive to the concept of SODS and very positive about the fender-mounted convex mirror. However, if SODS are to offer significant safety benefits in the future, more work is needed to refine their performance and design.
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Janson, Anthony F. "THE CONVEX MIRROR AS VANITAS SYMBOL." Source: Notes in the History of Art 4, no. 2/3 (January 1985): 51–54. http://dx.doi.org/10.1086/sou.4.2_3.23202426.

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Liu, Xuan, Junhong Deng, King Fai Li, Mingke Jin, Yutao Tang, Xuecai Zhang, Xing Cheng, Hong Wang, Wei Liu, and Guixin Li. "Optical telescope with Cassegrain metasurfaces." Nanophotonics 9, no. 10 (April 10, 2020): 3263–69. http://dx.doi.org/10.1515/nanoph-2020-0012.

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AbstractThe Cassegrain telescope, made of a concave primary mirror and a convex secondary mirror, is widely utilized for modern astronomical observation. However, the existence of curved mirrors inevitably results in bulky configurations. Here, we propose a new design of the miniaturized Cassegrain telescope by replacing the curved mirrors with planar reflective metasurfaces. The focusing and imaging properties of the Cassegrain metasurface telescopes are experimentally verified for circularly polarized incident light at near infrared wavelengths. The concept of the metasurface telescopes can be employed for applications in telescopes working at infrared, Terahertz, and microwave and even radio frequencies.
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Feng Zhang, Feng Zhang. "Fabrication and testing of optical free-form convex mirror." Chinese Optics Letters 13, s1 (2015): S12202–312205. http://dx.doi.org/10.3788/col201513.s12202.

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Lounici, K. "Generalized mirror averaging and D-convex aggregation." Mathematical Methods of Statistics 16, no. 3 (September 2007): 246–59. http://dx.doi.org/10.3103/s1066530707030040.

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Heidmann, A., P. F. Cohadon, and M. Pinard. "Thermal noise of a plano-convex mirror." Physics Letters A 263, no. 1-2 (November 1999): 27–32. http://dx.doi.org/10.1016/s0375-9601(99)00704-5.

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Krohl, Robert. "A convex lens as a thick mirror." Physics Teacher 26, no. 1 (January 1988): 18. http://dx.doi.org/10.1119/1.2342406.

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Fadili, Jalal, Jérôme Malick, and Gabriel Peyré. "Sensitivity Analysis for Mirror-Stratifiable Convex Functions." SIAM Journal on Optimization 28, no. 4 (January 2018): 2975–3000. http://dx.doi.org/10.1137/17m113825x.

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Alaruri, Sami D. "45.5X Infinity Corrected Schwarzschild Microscope Objective Lens Design." International Journal of Measurement Technologies and Instrumentation Engineering 7, no. 1 (January 2018): 17–37. http://dx.doi.org/10.4018/ijmtie.2018010102.

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In this article, the design of a 45.5X (numerical aperture (NA) =0.5) infinity corrected, or infinite conjugate, Schwarzschild reflective microscope objective lens is discussed. Fast Fourier transform modulation transfer function (FFT MTF= 568.4 lines/mm at 50% contrast for the on-axis field-of-view), root-mean-square wavefront error (RMS WFE= 0.024 waves at 700 nm), point spread function (PSF, Strehl ratio= 0.972), encircled energy (0.88 µm spot radius at 80% fraction of enclosed energy), optical path difference (OPD=-0.644 waves) and Seidel coefficients calculated with Zemax® are provided to show that the design is diffraction-limited and aberration-free. Furthermore, formulas expressing the relationship between the parameters of the two spherical mirrors and the Schwarzschild objective lens focal length are given. In addition, tolerance and sensitivity analysis for the Schwarzschild objective lens, two spherical mirrors indicate that tilting the concave mirror (or secondary mirror) has a higher impact on the modulation transfer function values than tilts introduced by the convex mirror (or primary mirror). Finally, the performed tolerance and sensitivity analysis on the lens design suggests that decentering any of the mirrors by the same distance has the same effect on the modulation transfer function values.
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Dissertations / Theses on the topic "Convex mirror"

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Zhang, Xiangwen 1984. "Mean curvature flow for Lagrangian submanifolds with convex potentials." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=111593.

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In recent years symplectic geometry and symplectic topology have grown to large subbranches in mathematics and had a great impact on other areas in mathematics. When interested in geometry, a geometer always considers geometric structures that arise on immersed submanifolds. In symplectic geometry there is a distinguished class of immersions, known as Lagrangian submanifolds . In particular, minimal Lagrangian submanifolds, called special Lagrangians, are very important in mirror symmetry. Lagrangian mean curvature flow is an important example of Lagrangian deformation. From which we can get the special Lagrangian submanifolds. In recent years, there have been many papers about this subject and the result by K.Smoczyk and Mu-Tao Wang [WS] is very important and beautiful. Our main purpose in this article is to give a new proof for the main result in [WS] from the viewpoint of fully nonlinear partial differential equations.
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Timmons, Jeffrey Wayne. "Theory and Poetry: John Ashbery's "Self-portrait in a Convex Mirror"." PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/4898.

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This thesis examines John Ashbery's poem "Self-Portrait in a Convex Mirror" and its revision of the traditional distinction between theory and poetry. Drawing a relationship between the poem's subject and the practices of postmodern theoretical discourse, the thesis posits the poem as an artifact of these changes. Creating a context for the poem, these developments not only inform the climate in which Ashbery's poem takes on significance, but, as well, explain the changing nature of literary study. Historical in its approach to the pressures and impulses within this climate of aesthetic production, the thesis traces the distinction between science and literature and how it has influenced the creation of the literary discipline. Demonstrating that the disciplinary study of literature has always been the subject of debate and discussion, it uses this understanding to place present disagreements about the need or usefulness of theory in the context of historical disagreements over the difference of literature from science or philosophy. Explaining that postmodern theory has largely worked to foreground the arbitrary nature of distinctions such as that between theory and poetry, the thesis elaborates on how poststructuralism undoes these distinctions to show how they are always the result of particular political and ideological views of representation. Using this critical insight, the thesis then reads closely the details of the poem's relationship to postmodern theory, how it works to undo the distinction between theory and poetry. Having undone this traditional distinction, however, leaves the poem in an ambivalent and unstable position. Since it passes between extant categorical definitions its own nature remains undecided and, thus, maintains an engagement with and resistance to tradition. It remains caught between the need for the aesthetic past and the need for a freedom from that past. Chapter four, therefore, explores this ambivalence, particularly as it relates to the inheritance of romanticism and modernism. Finally, in chapter five, the thesis revises the main critical perception of Ashbery as postmodern, making a case for his closer affiliation with a late version of modernism. Because of Ashbery's preoccupation with the aesthetic past, his use of the imagery, insights, and idealism of our aesthetic history, he appears to re-create a distinction between high and popular art that is more consonant with a version of modernism.
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Oh, Chang Jin, Andrew E. Lowman, Matt Dubin, Greg Smith, Eric Frater, Chunyu Zhao, and James H. Burge. "Modern technologies of fabrication and testing of large convex secondary mirrors." SPIE-INT SOC OPTICAL ENGINEERING, 2016. http://hdl.handle.net/10150/622427.

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Modern large telescopes such as TAO, LSST, TMT and EELT require 0.9m-4m monolithic convex secondary mirrors. The fabrication and testing of these large convex secondary mirrors of astronomical telescopes is getting challenging as the aperture of the mirror is getting bigger. The biggest challenge to fabricate these large convex aspheric mirrors is to measure the surface figure to a few nanometers, while maintaining the testing and fabrication cycle to be efficient to minimize the downtime. For the last a couple of decades there was huge advancement in the metrology and fabrication of large aspheric secondary mirrors. College of Optical Sciences in the University Arizona developed a full fabrication and metrology process with extremely high accuracy and efficiency for manufacturing the large convex secondary mirrors. In this paper modern metrology systems including Swing-Arm Optical Coordinate Measuring System (SOCMM) which is comparable to Interferometry and a Sub-aperture stitching interferometry scalable to a several meters have been presented. Also a Computer Controlled Fabrication Process which produces extremely fine surface figure and finish has been demonstrated. These most recent development has been applied to the fabrication and testing of 0.9m aspheric convex secondary mirror for the Tokyo Atacama Observatory's 6.5m telescope and the result has been presented.
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He, Niao. "Saddle point techniques in convex composite and error-in-measurement optimization." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54400.

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This dissertation aims to develop efficient algorithms with improved scalability and stability properties for large-scale optimization and optimization under uncertainty, and to bridge some of the gaps between modern optimization theories and recent applications emerging in the Big Data environment. To this end, the dissertation is dedicated to two important subjects -- i) Large-scale Convex Composite Optimization and ii) Error-in-Measurement Optimization. In spite of the different natures of these two topics, the common denominator, to be presented, lies in their accommodation for systematic use of saddle point techniques for mathematical modeling and numerical processing. The main body can be split into three parts. In the first part, we consider a broad class of variational inequalities with composite structures, allowing to cover the saddle point/variational analogies of the classical convex composite minimization (i.e. summation of a smooth convex function and a simple nonsmooth convex function). We develop novel composite versions of the state-of-the-art Mirror Descent and Mirror Prox algorithms aimed at solving such type of problems. We demonstrate that the algorithms inherit the favorable efficiency estimate of their prototypes when solving structured variational inequalities. Moreover, we develop several variants of the composite Mirror Prox algorithm along with their corresponding complexity bounds, allowing the algorithm to handle the case of imprecise prox mapping as well as the case when the operator is represented by an unbiased stochastic oracle. In the second part, we investigate four general types of large-scale convex composite optimization problems, including (a) multi-term composite minimization, (b) linearly constrained composite minimization, (c) norm-regularized nonsmooth minimization, and (d) maximum likelihood Poisson imaging. We demonstrate that the composite Mirror Prox, when integrated with saddle point techniques and other algorithmic tools, can solve all these optimization problems with the best known so far rates of convergences. Our main related contributions are as follows. Firstly, regards to problems of type (a), we develop an optimal algorithm by integrating the composite Mirror Prox with a saddle point reformulation based on exact penalty. Secondly, regards to problems of type (b), we develop a novel algorithm reducing the problem to solving a ``small series'' of saddle point subproblems and achieving an optimal, up to log factors, complexity bound. Thirdly, regards to problems of type (c), we develop a Semi-Proximal Mirror-Prox algorithm by leveraging the saddle point representation and linear minimization over problems' domain and attain optimality both in the numbers of calls to the first order oracle representing the objective and calls to the linear minimization oracle representing problem's domain. Lastly, regards to problem (d), we show that the composite Mirror Prox when applied to the saddle point reformulation circumvents the difficulty with non-Lipschitz continuity of the objective and exhibits better convergence rate than the typical rate for nonsmooth optimization. We conduct extensive numerical experiments and illustrate the practical potential of our algorithms in a wide spectrum of applications in machine learning and image processing. In the third part, we examine error-in-measurement optimization, referring to decision-making problems with data subject to measurement errors; such problems arise naturally in a number of important applications, such as privacy learning, signal processing, and portfolio selection. Due to the postulated observation scheme and specific structure of the problem, straightforward application of standard stochastic optimization techniques such as Stochastic Approximation (SA) and Sample Average Approximation (SAA) are out of question. Our goal is to develop computationally efficient and, hopefully, not too conservative data-driven techniques applicable to a broad scope of problems and allowing for theoretical performance guarantees. We present two such approaches -- one depending on a fully algorithmic calculus of saddle point representations of convex-concave functions and the other depending on a general approximation scheme of convex stochastic programming. Both approaches allow us to convert the problem of interests to a form amenable for SA or SAA. The latter developments are primarily focused on two important applications -- affine signal processing and indirect support vector machines.
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Adamec, Martin. "Problematika pozorování objektů v dopravním zrcadle." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-232838.

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The thesis is written up within the master degree in field Expert engineering in transport. It follows up Problem of Object Observation in Traffic Mirror. Thesis describes the device of traffic mirror, physical principal, legislation and types of traffic mirrors in detail. There are measurements associated with this issue in practical part, which are evaluated in detail. At the conclusion there are suggested changes and recommendations associated with this issue.
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Lu, Zhaosong. "Algorithm Design and Analysis for Large-Scale Semidefinite Programming and Nonlinear Programming." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7151.

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The limiting behavior of weighted paths associated with the semidefinite program (SDP) map $X^{1/2}SX^{1/2}$ was studied and some applications to error bound analysis and superlinear convergence of a class of primal-dual interior-point methods were provided. A new approach for solving large-scale well-structured sparse SDPs via a saddle point mirror-prox algorithm with ${cal O}(epsilon^{-1})$ efficiency was developed based on exploiting sparsity structure and reformulating SDPs into smooth convex-concave saddle point problems. An iterative solver-based long-step primal-dual infeasible path-following algorithm for convex quadratic programming (CQP) was developed. The search directions of this algorithm were computed by means of a preconditioned iterative linear solver. A uniform bound, depending only on the CQP data, on the number of iterations performed by a preconditioned iterative linear solver was established. A polynomial bound on the number of iterations of this algorithm was also obtained. One efficient ``nearly exact' type of method for solving large-scale ``low-rank' trust region subproblems was proposed by completely avoiding the computations of Cholesky or partial Cholesky factorizations. A computational study of this method was also provided by applying it to solve some large-scale nonlinear programming problems.
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Flammarion, Nicolas. "Stochastic approximation and least-squares regression, with applications to machine learning." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEE056/document.

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De multiples problèmes en apprentissage automatique consistent à minimiser une fonction lisse sur un espace euclidien. Pour l’apprentissage supervisé, cela inclut les régressions par moindres carrés et logistique. Si les problèmes de petite taille sont résolus efficacement avec de nombreux algorithmes d’optimisation, les problèmes de grande échelle nécessitent en revanche des méthodes du premier ordre issues de la descente de gradient. Dans ce manuscrit, nous considérons le cas particulier de la perte quadratique. Dans une première partie, nous nous proposons de la minimiser grâce à un oracle stochastique. Dans une seconde partie, nous considérons deux de ses applications à l’apprentissage automatique : au partitionnement de données et à l’estimation sous contrainte de forme. La première contribution est un cadre unifié pour l’optimisation de fonctions quadratiques non-fortement convexes. Celui-ci comprend la descente de gradient accélérée et la descente de gradient moyennée. Ce nouveau cadre suggère un algorithme alternatif qui combine les aspects positifs du moyennage et de l’accélération. La deuxième contribution est d’obtenir le taux optimal d’erreur de prédiction pour la régression par moindres carrés en fonction de la dépendance au bruit du problème et à l’oubli des conditions initiales. Notre nouvel algorithme est issu de la descente de gradient accélérée et moyennée. La troisième contribution traite de la minimisation de fonctions composites, somme de l’espérance de fonctions quadratiques et d’une régularisation convexe. Nous étendons les résultats existants pour les moindres carrés à toute régularisation et aux différentes géométries induites par une divergence de Bregman. Dans une quatrième contribution, nous considérons le problème du partitionnement discriminatif. Nous proposons sa première analyse théorique, une extension parcimonieuse, son extension au cas multi-labels et un nouvel algorithme ayant une meilleure complexité que les méthodes existantes. La dernière contribution de cette thèse considère le problème de la sériation. Nous adoptons une approche statistique où la matrice est observée avec du bruit et nous étudions les taux d’estimation minimax. Nous proposons aussi un estimateur computationellement efficace
Many problems in machine learning are naturally cast as the minimization of a smooth function defined on a Euclidean space. For supervised learning, this includes least-squares regression and logistic regression. While small problems are efficiently solved by classical optimization algorithms, large-scale problems are typically solved with first-order techniques based on gradient descent. In this manuscript, we consider the particular case of the quadratic loss. In the first part, we are interestedin its minimization when its gradients are only accessible through a stochastic oracle. In the second part, we consider two applications of the quadratic loss in machine learning: clustering and estimation with shape constraints. In the first main contribution, we provided a unified framework for optimizing non-strongly convex quadratic functions, which encompasses accelerated gradient descent and averaged gradient descent. This new framework suggests an alternative algorithm that exhibits the positive behavior of both averaging and acceleration. The second main contribution aims at obtaining the optimal prediction error rates for least-squares regression, both in terms of dependence on the noise of the problem and of forgetting the initial conditions. Our new algorithm rests upon averaged accelerated gradient descent. The third main contribution deals with minimization of composite objective functions composed of the expectation of quadratic functions and a convex function. Weextend earlier results on least-squares regression to any regularizer and any geometry represented by a Bregman divergence. As a fourth contribution, we consider the the discriminative clustering framework. We propose its first theoretical analysis, a novel sparse extension, a natural extension for the multi-label scenario and an efficient iterative algorithm with better running-time complexity than existing methods. The fifth main contribution deals with the seriation problem. We propose a statistical approach to this problem where the matrix is observed with noise and study the corresponding minimax rate of estimation. We also suggest a computationally efficient estimator whose performance is studied both theoretically and experimentally
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McCord, Kyle 1984. "Recklessness and Light." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc700018/.

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This dissertation contains two parts: Part I, which discusses the methods and means by which poets achieve originality within ekphrastic works; and Part II, Recklessness and Light, a collection of poems. Poets who seek to write ekphrastically are faced with a particular challenge: they must credibly and substantially build on the pieces of art they are writing about. Poems that fail to achieve invention become mere translations. A successful ekphrastic poem must in some way achieve originality by using the techniques of the artist to credibly and substantially build on the art. The preface discusses three ekphrastic poems: W.H. Auden’s “Musée des Beaux Arts,” John Ashbery’s “Self-Portrait in Convex Mirror,” and Larry Levis’ “Caravaggio: Swirl and Vortex.” In order to invent, each of these poets connects time within the paintings to time within the poem. The poets turn to techniques such as imprinting of historical context, conflation, and stranging of perspective to connect their work with the paintings. I examine these methods of generating ekphrastic poems in order to evaluate how these poets have responded to one another and to consider emerging patterns of ekphrastic poetry in the twentieth century.
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Kwon, Joon. "Stratégies de descente miroir pour la minimisation du regret et l'approchabilité." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066276/document.

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On présente dans le Chapitre I le problème d'online linear optimization, et on étudie les stratégies de descente miroir. Le Chapitre II se concentre sur le cas où le joueur dispose d'un ensemble fini d'actions. Le Chapitre III établit que les stratégies FTPL appartiennent à la famille de descente miroir. On construit au Chapitre IV des stratégies de descente miroir pour l'approchabilité de Blackwell. Celles-ci sont ensuite appliquées à construction de stratégies optimales pour le problème online combinatorial optimization et la minimisation du regret interne/swap. Le Chapitre V porte sur la minimisation du regret avec l'hypothèse supplémentaire que les vecteurs de paiement possèdent au plus $s$ composantes non-nulles. On met en évidence une différence fondamentale entre les gains et les pertes en établissant des bornes optimales sur le regret d'ordre différents dans chacun de ces deux cas. Le Chapitre VI porte sur l'approchabilité de Blackwell avec observations partielles. On établit que les vitesses de convergence optimales sont $O(T^{-1/2})$ pour des signaux dont les lois ne dépendent pas de l'action du joueur, et $O(T^{-1/3})$ dans le cas général. Le Chapitre VII définit les stratégies de descente miroir en temps continu. On établit pour ces derniers une propriété de non-regret. On effectue ensuite une comparaison entre le temps continu et le temps discret. Enfin, le Chapitre VIII établit une borne universelle sur les variations des fonctions convexes bornées. On obtient en corollaire que toute fonction convexe bornée est lipschitzienne par rapport à la métrique de Hilbert
In Chapter I, we present the online linear optimization problem and study Mirror Descent strategies. Chapter II focuses on the case where the Decision Maker has a finite set of actions. We establish in Chapter III that FTPL strategies belong to the Mirror Descent family. In Chapter IV, we construct Mirror Descent strategies for Blackwell's approachability. They are then applied to the construction of optimal strategies for online combinatorial optimization and internal/swap regret minimization. Chapter V studies the regret minimization problem with the additional assumption that the payoff vectors have at most $s$ nonzero components. We show that gains and losses are fundamentally different by deriving optimal regret bounds of different orders for those two cases. Chapter VI studies Blackwell's approachability with partial monitoring. We establish that optimal convergence rates are $O(T^{-1/2})$ in the case of outcome-dependent signals, and $O(T^{-1/3})$ in the general case. Chapter VII defines Mirror Descent strategies in continuous-time for which we establish a no-regret property. A comparison between discrete and continuous-time is then conducted. Chapter VIII establish a universal bound on the variations of bounded convex functions. As a byproduct, we obtain that every bounded convex function is Lipschitz continuous with respect to the Hilbert metric
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Klukas, Mirko [Verfasser], and Hansjörg [Akademischer Betreuer] Geiges. "Constructions of open books and applications of convex surfaces in contact topology / Mirko Klukas. Gutachter: Hansjörg Geiges." Köln : Universitäts- und Stadtbibliothek Köln, 2012. http://d-nb.info/1038233240/34.

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Books on the topic "Convex mirror"

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Gargantua in a a convex mirror: Fischart's view of Rabelais. New York: Peter Lang, 1986.

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Tonelli, Maria Cristina, ed. Giovanni Klaus Koenig. Florence: Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-191-4.

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An architect and academic, Giovanni Klaus Koenig (1924-1989) was a designer of rail means of transport, passionate scholar of trains and trams, critic of contemporary architecture and an industrial design historian. As an intellectual he was committed to solving the problems of Florence, his city. All of this in years in which critical and operational attention to the present was uncommon, the discipline of design was still to be founded, the involvement of an architect with rolling stock companies was out of the ordinary. The text aims to piece together his figure mirrored with his city and the national context, thanks to the contribution of those who had him as an interlocutor and the scholars who worked on the beaten track of his research. The goal is not limited to render the complex of a culturally incisive personality, but to highlight areas still to be explored for current scholars, those "phosphorescent trails" that he left us as a legacy.
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Witness in the Convex Mirror. Tinfish Press, 2019.

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Self-Portrait in a Convex Mirror. Fence Magazine, Incorporated, 2016.

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Self-Portrait in a Convex Mirror: Poems (Penguin Poets). Penguin (Non-Classics), 1990.

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Chénetier, Marc, Olivier Brossard, John Ashbery, and Pierre Alféry. Autoportrait dans un miroir convexe: Édition critique. JOCA SERIA, 2020.

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Boyd Maunsell, Jerome. Introduction. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198789369.003.0001.

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This chapter traces and opens up the themes that recur in the series of chapters which follow. With a brief discussion of a painting mentioned by Vasari in his Lives of the Painters—Parmigianino’s Self-Portrait in a Convex Mirror (1523–4)—ideas of illusion and truth-telling, the differences between visual and literary self-portraiture, and the difficulties in searching for the meaning of a life, are introduced. The scope of Portraits from Life is outlined, with brief definitions of memoir and autobiography, and a discussion of the thin line between fiction and autobiography in all writing. The key problems, satisfactions, and possibilities of biography and autobiography are raised, especially as they relate to the Modernist period and to writers who are also novelists. The way in which autobiography often becomes a form of group portraiture is also discussed.
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Marat, Erica. A Mirror of Society. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190861490.003.0001.

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The introductory chapter develops a new understanding of both police and police reform in the post-Soviet context. Departing from the conventional interpretation of the police as merely an institution of coercion, the chapter defines it as a medium for state-society consensus on the limits of the state’s legitimate use of violence. Police reform is, in turn, a never-ending top-down and bottom-up collaboration that may experience both great leaps forward and great setbacks, as opposed to a definite sum of projects. Depending on a country’s specific political context, changing the way the police operate will require some type of revision in how and when the state wields its monopoly on legitimate violence.
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Rychterová, Pavlína. A Crooked Mirror for Princes. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199394852.003.0010.

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This chapter examines the growing importance of the vernacular languages during the later Middle Ages in shaping the form, content, and audiences of political discourse. It presents a famously wicked king of the late Middle Ages, Wenceslas IV (1361–1419), as a case study and traces the origins of his bad reputation to a group of fourteenth- and fifteenth-century writings. These have often been dismissed as fictions or studied solely as literature, but in fact they represent new modes of articulating good and bad kingship. The chapter shows that, in the context of an increasingly literate bourgeois culture, especially in university cities, these vernacular works transformed Latin theological approaches to monarchy, while rendering mirrors for princes and related literatures accessible to an unprecedented audience.
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Schoeman, Kobus, ed. Churches in the mirror: Developing contemporary ecclesiologies. SunBonani Scholar, 2020. http://dx.doi.org/10.18820/9781928424710.

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Ecclesiology is the study of the church and has two focal points; the one is the historical and doctrinal perspective on the church, and the other is the church as situated in a local context in the sense of the local practices of actual congregations. The ecclesiology or, more correctly, the ecclesiologies of this volume mainly focuses on the second aspect, i.e., understanding the local congregation or parish as a community of believers. A congregation may firstly be described by posing a theological question: What is the local missional church or congregation all about? This question may be answered from different perspectives, but it remains essential to answer it from a theological perspective. The first five chapters in this book focus mainly on a theological understanding of the congregation. This is done from different disciplines within the study field of theology. Congregations are, secondly, social realities and should be described and analysed through an analytical or empirical lens, or, to answer the question attached to the first empirical-descriptive task of practical theology, “What is going on?”. The remaining chapters use a quantitative and qualitative lens and give an empirical analysis of the congregation. The intention is to critically reflect on the church and congregations’ ecclesiology from a theological and analytical perspective with an emphasis on the South African context. It wants to map markers for the development of contemporary ecclesiologies, and the different chapters are meant as mirrors to look in and reflect on the theological and contextual relevance of denominations and congregations in South Africa.
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Book chapters on the topic "Convex mirror"

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Mechel, Fridolin. "Mirror Sources in Convex Rooms." In Room Acoustical Fields, 391–411. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-22356-3_18.

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J. Zaslavski, Alexander. "The Mirror Descent Algorithm." In Convex Optimization with Computational Errors, 83–125. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37822-6_3.

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Herd, David. "John Ashbery's: Self-Portrait in a Convex Mirror." In A Companion to Twentieth-Century Poetry, 536–46. Malden, MA, USA: Blackwell Publishing Ltd, 2007. http://dx.doi.org/10.1002/9780470998670.ch44.

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Baes, Michel, Timm Oertel, Christian Wagner, and Robert Weismantel. "Mirror-Descent Methods in Mixed-Integer Convex Optimization." In Facets of Combinatorial Optimization, 101–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38189-8_5.

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Nazin, Alexander. "Algorithms of Inertial Mirror Descent in Stochastic Convex Optimization Problems." In Analytical and Computational Methods in Probability Theory, 376–87. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-71504-9_31.

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Bayandina, Anastasia, Pavel Dvurechensky, Alexander Gasnikov, Fedor Stonyakin, and Alexander Titov. "Mirror Descent and Convex Optimization Problems with Non-smooth Inequality Constraints." In Large-Scale and Distributed Optimization, 181–213. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97478-1_8.

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Morse, Margaret A. "The absent body as divine reflection in Parmigianino’s Self-Portrait in a Convex Mirror." In Binding the Absent Body in Medieval and Modern Art, 133–52. New York: Routledge, [2017]: Routledge, 2017. http://dx.doi.org/10.4324/9781315096322-8.

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Alkousa, Mohammad S. "On Modification of an Adaptive Stochastic Mirror Descent Algorithm for Convex Optimization Problems with Functional Constraints." In Forum for Interdisciplinary Mathematics, 47–63. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8498-5_3.

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Ghandehari, Mohammad, and Mohsen Feyzbakhsh. "Facing mirrors." In Reading the Bible in Islamic Context, 88–100. New York : Routledge, 2018. | Series: Routledge biblical interpretation in Islamic context series ; 1: Routledge, 2017. http://dx.doi.org/10.4324/9781315106748-6.

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Daly, Jonathan. "Russian Punishments in the European Mirror." In Russia in the European Context, 1789–1914, 161–88. New York: Palgrave Macmillan US, 2005. http://dx.doi.org/10.1057/9781403982261_10.

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Conference papers on the topic "Convex mirror"

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Dhalwar, Suraj, Sneha Ruby, Sachin Salgar, and Bhanuprakash Padiri. "Image Processing based Traffic Convex Mirror Detection." In 2019 Fifth International Conference on Image Information Processing (ICIIP). IEEE, 2019. http://dx.doi.org/10.1109/iciip47207.2019.8985794.

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Delabre, B. "Test setup for large size deformable convex mirrors and application to 8 m convex secondary mirror for ELT's." In 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies, edited by Yudong Zhang, Wenhan Jiang, and Myung K. Cho. SPIE, 2006. http://dx.doi.org/10.1117/12.674045.

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Hossain, Md Mahabub, Jun Yeop Lee, and Seong Ho Kong. "Fabrication of a MEMS based symmetrically deformarle convex mirror." In 2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2017. http://dx.doi.org/10.1109/memsys.2017.7863493.

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McKechnie, T. Stewart. "Interferometric test method for testing convex aspheric mirror surfaces." In SPIE Astronomical Telescopes + Instrumentation. SPIE, 2010. http://dx.doi.org/10.1117/12.856564.

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Meng, Xiaohui, Yonggang Wang, Ang Li, and Wenqing Li. "Ion beam figuring of Φ520mm convex hyperbolic secondary mirror." In International Symposium on Optoelectronic Technology and Application 2016, edited by Min Xu and Ji Yang. SPIE, 2016. http://dx.doi.org/10.1117/12.2243825.

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ter Horst, Rik, and Remko Stuik. "Manufacturing and testing of a convex aspherical mirror for ASSIST." In SPIE Astronomical Telescopes + Instrumentation, edited by Ramón Navarro, Colin R. Cunningham, and Eric Prieto. SPIE, 2012. http://dx.doi.org/10.1117/12.926126.

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Edwards, C. L., and M. L. Edwards. "A generalized electrostatic micro-mirror (GEM) model for a two-axis convex piecewise linear shaped MEMS mirror." In SPIE Defense, Security, and Sensing, edited by Thomas George, M. Saif Islam, and Achyut K. Dutta. SPIE, 2009. http://dx.doi.org/10.1117/12.818838.

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Burge, James H., David S. Anderson, Tomas D. Milster, and Cynthia L. Vernold. "Measurement of a convex secondary mirror using a holographic test plate." In 1994 Symposium on Astronomical Telescopes & Instrumentation for the 21st Century, edited by Larry M. Stepp. SPIE, 1994. http://dx.doi.org/10.1117/12.176180.

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Wang, Huijun, Jin Xu, Peng Wang, Ang Li, Wen Guo, and Yan Du. "Study on optical fabrication and metrology of precise convex aspheric mirror." In Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), edited by Wenhan Jiang, Li Yang, Oltmann Riemer, Shengyi Li, and Yongjian Wan. SPIE, 2016. http://dx.doi.org/10.1117/12.2242636.

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Meng, Xiaohui, Huiwen Dong, Wen Guo, and Huijun Wang. "Study on the method to test large-aperture hyperboloid convex mirror." In 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), edited by Li Yang, Eric Ruch, and Shengyi Li. SPIE, 2014. http://dx.doi.org/10.1117/12.2068025.

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Reports on the topic "Convex mirror"

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Timmons, Jeffrey. Theory and Poetry: John Ashbery's "Self-portrait in a Convex Mirror". Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.6774.

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Cummings, Patrick J. Context, Culture, and Connection: Avoiding the Counter-Productive Effects of Mirror Imaging In Theater Security Cooperation. Fort Belvoir, VA: Defense Technical Information Center, April 2008. http://dx.doi.org/10.21236/ada483878.

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