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See detailVoIP Traffic Modelling using Gaussian Mixture Models, Gaussian Processes and Interactive Particle Algorithms
Simionovici, Ana-Maria UL; Tantar, Alexandru; Bouvry, Pascal UL et al

Scientific Conference (2015, December 05)

The paper deals with an important problem in the Voice over IP (VoIP) domain, namely being able to understand and predict the structure of traffic over some given period of time. VoIP traffic has a time ... [more ▼]

The paper deals with an important problem in the Voice over IP (VoIP) domain, namely being able to understand and predict the structure of traffic over some given period of time. VoIP traffic has a time variant structure, e.g. due to sudden peaks, daily or weekly moving patterns of activities, which in turn makes prediction difficult. Obtaining insights about the structure and trends of traffic has important implications when dealing with the nowadays cloud-deployed VoIP services. Prediction techniques are applied to anticipate the incoming traffic, for an efficient distribution of the traffic in the system and allocation of resources. The article looks in a critical manner at a series of machine learning techniques. We namely compare and review (using real VoIP data) the results obtained when using a Gaussian Mixture Model (GMM), Gaussian Processes (GP), and an evolutionary like Interacting Particle Systems based (sampling) algorithm. The experiments consider different setups as to verify the time variant traffic assumption. [less ▲]

Detailed reference viewed: 156 (9 UL)
See detailLa voix du peuple ? Vote et élection avant la démocratie à travers le cas du Luxembourg au Moyen Âge et dans la première modernité
Adde, Éloise; Dönges, Christa Annette UL; Genot, Gilles et al

in Frieseisen, Claude; Moes, Régis; Polfer, Michel (Eds.) et al #wielewatmersinn. 100 Jahre allgemeines Wahlrecht in Luxemburg, 100 ans de suffrage universel au Luxembourg (2019)

Detailed reference viewed: 77 (2 UL)
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See detailLe vol d’Icare du Fürstenrecht. L’invalidité des trois ‘décrets’ du Grand-Duc
Heuschling, Luc UL

Article for general public (2012)

Detailed reference viewed: 463 (65 UL)
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See detailThe Volatility Behavior and Dependence Structure of Commodity Futures and Stocks
Gao, Lin UL; Liu, Lu

in Journal of Futures Markets (2014), 34(1), 93-101

This study finds substantial risk diversification potential between certain com- modity groups and stocks by exploring the dependence between their patterns of regime switching. None of the commodity ... [more ▼]

This study finds substantial risk diversification potential between certain com- modity groups and stocks by exploring the dependence between their patterns of regime switching. None of the commodity groups share a common volatility regime with stocks, nor are the regime-switching patterns of grains, industrials, metals, or softs, dependent on that of stocks. Simultaneous volatile regimes of commodity futures and stocks tend to be infrequent and short-lived. In addition, in spite of financial contagion, animal products, grains, and softs typically demon- strate very low correlations with stocks even in simultaneous volatile regimes. [less ▲]

Detailed reference viewed: 112 (15 UL)
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See detailVolatility Concepts and Risk Management Tools
Lehnert, Thorsten UL; Blanchard,, Gildas; Dennis, Bams,

E-print/Working paper (2015)

Detailed reference viewed: 57 (8 UL)
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See detailVolatility Measures and Value-at-Risk
Lehnert, Thorsten UL; Bams, D.; Blanchard, G.

in International Journal of Forecasting (2017), 33(4), 848-863

Detailed reference viewed: 121 (4 UL)
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See detailVolba krále a tyranovražda – návod k ustavení politické role české šlechty v Dalimilově kronice
Vomacka, Eloïse UL

in Mediaevalia Historica Bohemica (2014), 17(1), 41-88

Detailed reference viewed: 22 (0 UL)
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See detailVolebné násilie v priestore krajín postkomunistickej Európy. Mapovanie vzorcov na základe dát z projektu NELDA
Mochtak, Michal UL

in Bezpečnostní teorie a praxe (2015), 16(1), 110-124

Detailed reference viewed: 19 (2 UL)
See detailVölkerrecht und Weltwirtschaft im 19. Jahrhundert
Klump, Rainer UL; Vec, Milos

Book published by Nomos (2012)

Detailed reference viewed: 62 (0 UL)
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See detailVölkerwanderung und Heldenepik. Dietrich von Bern - ein sagenhafter Held
Sieburg, Heinz UL

in Deutschunterricht (Der) (2018), 1/2018

Detailed reference viewed: 99 (1 UL)
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See detailDer Volksliedforscher John Meier und Luxemburg. Über das Zustandekommen der bedeutendsten Volksliedersammlung Luxemburgs
Sagrillo, Damien UL

in nos cahiers, Lëtzebuerger Zäitschrëft fir Kultur (2005), (26), 89-110

Detailed reference viewed: 172 (0 UL)
See detailVolksschule im 18. Jahrhundert Die Schulumfrage auf der Zürcher Landschaft 1771/72: Quellen und Studien
Schwab, Andrea; Tröhler, Daniel UL

Book published by Klinkhardt (2007)

Detailed reference viewed: 42 (0 UL)
See detailVolksschule um 1800. Band 2: Neue Studien im Umfeld der Helvetischen Stapfer-Enquête von 1799
Tröhler, Daniel UL

Book published by Klinhardt (2016)

Dieser zweite Sammelband im Rahmen der Reihe „Studien zur Stapfer-Schulenquête von 1799“ beinhaltet vierzehn originäre Beiträge zu der 1799 durch den Helvetischen Bildungsminister Philipp Albert Stapfer ... [more ▼]

Dieser zweite Sammelband im Rahmen der Reihe „Studien zur Stapfer-Schulenquête von 1799“ beinhaltet vierzehn originäre Beiträge zu der 1799 durch den Helvetischen Bildungsminister Philipp Albert Stapfer initiierten großangelegten Schulumfrage. Gegenüber den Beiträgen im ersten Sammelband konnten diese hier versammelten Studien auf die komplette Edition der rund 2400 überlieferten Antwortbögen der Stapfer-Enquête zurückgreifen (www.stapferenquete.ch). Der nun vollständig mögliche Zugriff auf die Daten hat dementsprechend umfassendere Forschungsresultate zur Folge und erlaubt repräsentativere Tiefenbohrungen. Noch deutlicher als beim ersten Band vermögen diese Beiträge ein gegenüber der traditionellen Schulgeschichte wesentlich differenzierteres, in vielen Fällen auch korrigiertes Bild der Volksschule um 1800 zeichnen. [less ▲]

Detailed reference viewed: 56 (2 UL)
See detailVolksschule um 1800. Studien im Umfeld der Helvetischen Stapfer-Enquête 1799
Tröhler, Daniel UL

Book published by Klinkhardt (2014)

Detailed reference viewed: 47 (0 UL)
See detail… la volonté de la Chambre qui est la volonté du pays (Eugène Schaus, 22/11/1966). Un florilège de débats parlementaires luxembourgeois (1848-2008)
Pauly, Michel UL; Jungblut, Marie-Paule UL; Frieseisen, Claude

Book published by Imprimerie Centrale (2019)

analyse de 22 "grands débats" parlementaires de 1848-2008 à la Chambre des Députés du Grand-Duché de Luxembourg

Detailed reference viewed: 114 (8 UL)
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See detailVolume and non-existence of compact Clifford-Klein forms
Tholozan, Nicolas UL

E-print/Working paper (2015)

Detailed reference viewed: 41 (0 UL)
See detailVolume des formes des formes de Clifford-Klein compactes
Tholozan, Nicolas UL

Presentation (2016, February 08)

Detailed reference viewed: 28 (0 UL)
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See detailVOLUME FLOW UNBALANCES AND SHORTCUTS IN DECENTRALIZED AND CENTRALIZED VENTILATION UNITS – FIELD TESTS IN RESIDENTIAL BUILDINGS
Merzkirch, Alexander UL; Maas, Stefan UL; Scholzen, Frank UL et al

Scientific Conference (2014)

Centralized and decentralized mechanical ventilation have become state-of-the-art in modern energy-efficient residential buildings. Calculations for the energy demand of buildings are done with nominal ... [more ▼]

Centralized and decentralized mechanical ventilation have become state-of-the-art in modern energy-efficient residential buildings. Calculations for the energy demand of buildings are done with nominal values of the ventilation units, assuming a proper function of the devices. The used ventilation concepts may be divided into two main categories- centralized and decentralized units and both come with advantages and disadvantages in terms of energy efficiency. In Luxembourg, a comprehensive field test has been performed in order to evaluate and compare their performance in practice. It could be shown that ventilation systems often do not meet the expectations. High unbalances in volume flows, high sensitivity to pressure differences and recirculation were measured in several cases. Only a proper installation and balancing of the systems can ensure an energy efficient function. [less ▲]

Detailed reference viewed: 81 (16 UL)