References of "2013"
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See detailTheorie und Genealogie des Techno-Imaginären : Social Media zwischen ›Digital Nation‹ und kosmopolitischem Pluralismus
Doll, Martin UL

in Doll, Martin; Kohns, Oliver (Eds.) Die imaginäre Dimension der Politik (2013)

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See detailUnsupervised intrinsic calibration from a single frame using a "plumb-line" approach
Melo, Rui; Goncalves Almeida Antunes, Michel UL; Barreto, João Pedro et al

in International Conference on Computer Vision (ICCV) (2013, December)

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See detailInternational Financial Management Association Best Paper Prize
Wolff, Christian UL

Diverse speeches and writings (2013)

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See detailA very good triple of operads
Riviere, Salim UL

E-print/Working paper (2013)

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See detailConcurrent Sentencing in Dutch Criminal Law
Van Wijk, Marloes Chantal UL

in Gorowski, W; Kardas, P; Sroka, T (Eds.) et al Zagadnienia teorii i nauczania prawa karnego (2013)

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See detail56. Aktualisierungslieferung - §§ 14, 43, 52b, 62, 64 RStV
Cole, Mark UL; Hartstein; Ring et al

Book published by Jehle-Rehm (2013)

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See detailSpace-time reduced basis approximation and goal-oriented a posteriori error estimation for wave equation
Hoang, Khac Chi; Kerfriden, Pierre; Bordas, Stéphane UL

in Theory and Application of Model Order Reduction (2013, December)

We study numerically the linear second order wave equation with an output quantity of interest which is a linear functional of the field variable using reduced basis approximation methods in the space ... [more ▼]

We study numerically the linear second order wave equation with an output quantity of interest which is a linear functional of the field variable using reduced basis approximation methods in the space-time domain. The essential new ingredient is the a posteriori error estimation of the output quantity of interest. The technique, which is based on the well-known dual-weighted residual (DWR) method is deployed within a reduced basis approximation context. First, we introduce the reduced basis recipe - Galerkin projection onto a space spanned by the reduced basis functions which are constructed from the solutions of the governing PDE at several selected points in the parameter space. Second, in order to construct these basis functions we propose a new “goal-oriented” Proper Orthogonal Decomposition (POD)-Greedy sampling procedure, which is based on these new a posteriori error estimations. Finally, this a posteriori error estimation is also used to evaluate approximately the quality of many output computations in the online stage within the reduced basis procedure. [less ▲]

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See detailOptimization of hard fusion based spectrum sensing for energy-constrained cognitive radio networks
Maleki, Sina UL; Prabhakar Chepuri, Sundeep; Leus, Geert

in Physical Communication (2013), 9

The detection reliability of a cognitive radio network improves by employing a cooperative spectrum sensing scheme. However, increasing the number of cognitive radios entails a growth in the cooperation ... [more ▼]

The detection reliability of a cognitive radio network improves by employing a cooperative spectrum sensing scheme. However, increasing the number of cognitive radios entails a growth in the cooperation overhead of the system. Such an overhead leads to a throughput degradation of the cognitive radio network. Since current cognitive radio networks consist of low-power radios, the energy consumption is another critical issue. In this paper, throughput optimization of the hard fusion based sensing using the k-out-of-N rule is considered. We maximize the throughput of the cognitive radio network subject to a constraint on the probability of detection and energy consumption per cognitive radio in order to derive the optimal number of users, the optimal k and the best probability of false alarm. The simulation results based on the IEEE 802.15.4/ZigBee standard, show that the majority rule is either optimal or almost optimal in terms of the network throughput. [less ▲]

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See detailFunctions, divergence and clinical value of TAp73 isoforms in cancer.
Logotheti, Stella; Pavlopoulou, Athanasia; Galtsidis, Sotirios UL et al

in Cancer and Metastasis Reviews (2013), 32(3-4), 511534

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See detailLes marques modales dans les chats: étude sémiotique et pragmatique des interjections et des émoticônes dans un corpus de conversations synchrones en ligne
Halté, Pierre UL

Doctoral thesis (2013)

The purpose of this thesis is to study subjectivity markers in an online chat corpus : interjections and emoticons. First, we will study the semiotic and pragmatic specificities of this type of online ... [more ▼]

The purpose of this thesis is to study subjectivity markers in an online chat corpus : interjections and emoticons. First, we will study the semiotic and pragmatic specificities of this type of online conversation ; then we will propose a semiotic and pragmatic approach of interjections and emoticons. We will show that, even if there are a few differences between those two types of signs – interjections are definitely part of verbal language, whereas emoticons are iconic imitations of gestures and mimics – they share numerous traits. The study of those signs will lead us to wonder about their semiotic status, from icon to index, but also about their pragmatic functions : how they allow to perform, to show instead of describing, how they allow the users to express their subjectivity regarding a propositional content, etc. We hope that this study will contribute to enlarge the knowledge we have of emoticons, but also the views researchers have on the relationships between language and gestures / mimics, which, according to us, should be brought closer, and not further apart. [less ▲]

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See detailLe plein office du juge et le rôle des parties
Menetrey, Séverine UL

in JurisNews – Arbitrage et procédure civile (2013)

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See detailSNR Estimation for Multi-dimensional Cognitive Receiver under Correlated Channel/Noise
Sharma, Shree Krishna UL; Chatzinotas, Symeon UL; Ottersten, Björn UL

in IEEE Transactions on Wireless Communications (2013), 12(12), 6392-6405

In addition to Spectrum Sensing (SS) capability required by a Cognitive Radio (CR), Signal to Noise Ratio (SNR) estimation of the primary signals at the CR receiver is crucial in order to adapt its ... [more ▼]

In addition to Spectrum Sensing (SS) capability required by a Cognitive Radio (CR), Signal to Noise Ratio (SNR) estimation of the primary signals at the CR receiver is crucial in order to adapt its coverage area dynamically using underlay techniques. In practical scenarios, channel and noise may be correlated due to various reasons and SNR estimation techniques with the assumption of white noise and uncorrelated channel may not be suitable for estimating the primary SNR. In this paper, firstly, we study the performance of different eigenvaluebased SS techniques in the presence of channel or/and noise correlation. Secondly, we carry out detailed theoretical analysis of the signal plus noise hypothesis to derive the asymptotic eigenvalue probability distribution function (a.e.p.d.f.) of the received signal’s covariance matrix under the following two cases: (i) correlated channel and white noise, and (ii) correlated channel and correlated noise, which is the main contribution of this paper. Finally, an SNR estimation technique based on the derived a.e.p.d.f is proposed in the presence of channel/noise correlation and its performance is evaluated in terms of normalized Mean Square Error (MSE). It is shown that the PU SNR can be reliably estimated when the CR sensing module is aware of the channel/noise correlation. [less ▲]

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See detailLTI Modell arbiträrer wechselrichtergeführter Inselnetze
Jostock, Markus UL; Sachau, Jürgen UL; Tuttas, Christian

in Automatisierungstechnik (2013), 61(12), 818-830

This paper presents the development of a control model for inverter driven island grids. The herein presented structured approach creates a multi voltage source inverter model from a single inverter state ... [more ▼]

This paper presents the development of a control model for inverter driven island grids. The herein presented structured approach creates a multi voltage source inverter model from a single inverter state space model and combines this with the node incidence matrix of a network into a compound model of an island grid. The presented approach allows to analyse arbitrary grid structures and different inverter models and it incorporates a large number of inverters. The model can be particularly used for ohmic-inductive low voltage lines. At the end of the article, a stability analysis of a sample network is presented. [less ▲]

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See detailSprachen und Nationalbewusstsein (1913-1923)
Fehlen, Fernand UL

in Scuto, Denis; Lesch, Paul; Steichen, Yves (Eds.) Un Journal dans son siècle (2013)

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See detailEnhanced Service Delivery for Cognitive Systems within Multiple Antenna Scenarios
Hassouneh, Nesreen; Alodeh, Maha UL

in IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (2013, December)

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See detailSuburbaner Raum im Lebenszyklus
Reicher, Christa; Hesse, Markus UL

Report (2013)

The central part of the study deals with the question of how to approach the temporarily differentiated development dynamics of suburban spaces within a systematic, conceptual analysis framework. The ... [more ▼]

The central part of the study deals with the question of how to approach the temporarily differentiated development dynamics of suburban spaces within a systematic, conceptual analysis framework. The temporal variation and trajectory analysis however remains descriptive in this study, as the method still has not been developed into an autonomous explanatory system. The study concentrates on the integration of the particular phases and cycles into a broader context of the suburban system and - as far as possible - to describe interdependencies of trigger factors as well as of the local and regional framework. This makes the approach different to a static spatial analysis. Those phases contain, in most cases, the Growth, Maturity, Transition and Resiliency. The latter describes the capability of a system to encounter decline or even to reach a development turn. The phases develop into cycles when temporal periodic changes occur, following a certain logic determined by definable factors and strategies. [less ▲]

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See detailImproving Portfolio Selection Using Option-Implied Volatility and Skewness
DeMiguel, Victor; Plyakha, Yuliya UL; Uppal, Raman et al

in Journal of Financial and Quantitative Analysis (2013), 48(06), 1813-1845

Our objective in this paper is to examine whether one can use option-implied information to improve the selection of mean-variance portfolios with a large number of stocks, and to document which aspects ... [more ▼]

Our objective in this paper is to examine whether one can use option-implied information to improve the selection of mean-variance portfolios with a large number of stocks, and to document which aspects of option-implied information are most useful to improve their out-of-sample performance. Portfolio performance is measured in terms of volatility, Sharpe ratio, and turnover. Our empirical evidence shows that using option-implied volatility helps to reduce portfolio volatility. Using option-implied correlation does not improve any of the metrics. Using option-implied volatility, risk premium, and skewness to adjust expected returns leads to a substantial improvement in the Sharpe ratio, even after prohibiting short sales and accounting for transaction costs. [less ▲]

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See detailDie Musikseiten des Tageblatt. Berichterstattung und Beitrag zur musikalischen Bildung
Sagrillo, Damien UL

in Scuto, Denis; Lesch, Paul; Steichen, Yves (Eds.) Radioscopie d'un journal (2013)

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See detailAdvances in Applied Mechanics
Bordas, Stéphane UL

Book published by Elsevier (2013)

Advances in Applied Mechanics draws together recent significant advances in various topics in applied mechanics. Published since 1948, Advances in Applied Mechanics aims to provide authoritative review ... [more ▼]

Advances in Applied Mechanics draws together recent significant advances in various topics in applied mechanics. Published since 1948, Advances in Applied Mechanics aims to provide authoritative review articles on topics in the mechanical sciences, primarily of interest to scientists and engineers working in the various branches of mechanics, but also of interest to the many who use the results of investigations in mechanics in various application areas, such as aerospace, chemical, civil, environmental, mechanical and nuclear engineering. [less ▲]

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