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See detailA probabilistic method for gradient estimates of some geometric flows
Chen, Xin; Cheng, Li Juan UL; Mao, Jing

in Stochastic Process. Appl. (2015), 125(6), 2295--2315

Detailed reference viewed: 176 (28 UL)
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See detailProbabilistic model checking of the PDGF signaling pathway
Yuan, Qixia UL; Trairatphisan, Panuwat UL; Pang, Jun UL et al

in Transactions on Computational Systems Biology (2012), XIV

Detailed reference viewed: 141 (16 UL)
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See detailA probabilistic model for appearance-based robot localization
Krose, B. J. A.; Vlassis, Nikos UL; Bunschoten, Roland et al

in Image & Vision Computing (2001), 19(6), 381-391

In this paper we present a method for an appearance-based modeling of the environment of a mobile robot. We describe the task (localization of the robot) in a probabilistic framework. Linear image ... [more ▼]

In this paper we present a method for an appearance-based modeling of the environment of a mobile robot. We describe the task (localization of the robot) in a probabilistic framework. Linear image features are extracted using a Principal Component Analysis. The appearance model is represented as a probability density function of the image feature vector given the location of the robot. We estimate this density model from the data with a kernel estimation method. We show how the parameters of the model influence the localization performance. We also study how many features and which features are needed for good localization. (C) 2001 Elsevier Science B.V. All rights reserved. [less ▲]

Detailed reference viewed: 78 (1 UL)
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See detailProbabilistic modeling natural way to treat data
Rappel, Hussein UL

Presentation (2019, February 12)

Detailed reference viewed: 58 (7 UL)
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See detailProbabilistic multiconstraints optimization of cooling channels in ceramic matrix composites
Ghasemi, Hamid; Kerfriden, Pierre; Bordas, Stéphane UL et al

in Composites : Part B, Engineering (2015), 81

This paper presents a computational reliable optimization approach for internal cooling channels in Ceramic Matrix Composite (CMC) under thermal and mechanical loadings. The algorithm finds the optimal ... [more ▼]

This paper presents a computational reliable optimization approach for internal cooling channels in Ceramic Matrix Composite (CMC) under thermal and mechanical loadings. The algorithm finds the optimal cooling capacity of all channels (which directly minimizes the amount of coolant needed). In the first step, available uncertainties in the constituent material properties, the applied mechanical load, the heat flux and the heat convection coefficient are considered. Using the Reliability Based Design Optimization (RBDO) approach, the probabilistic constraints ensure the failure due to excessive temperature and deflection will not happen. The deterministic constraints restrict the capacity of any arbitrary cooling channel between two extreme limits. A “series system” reliability concept is adopted as a union of mechanical and thermal failure subsets. Having the results of the first step for CMC with uniformly distributed carbon (C-) fibers, the algorithm presents the optimal layout for distribution of the C-fibers inside the ceramic matrix in order to enhance the target reliability of the component. A sequential approach and B-spline finite elements have overcome the cumbersome computational burden. Numerical results demonstrate that if the mechanical loading dominates the thermal loading, C-fibers distribution can play a considerable role towards increasing the reliability of the design. [less ▲]

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See detailProbabilistic Packet Relaying in Wireless Mobile Ad Hoc Network
Seredynski, Marcin UL; Ignac, Tomasz UL; Bouvry, Pascal UL

in Parallel Processing and Applied Mathematics (Proc. Parallel Processing and Applied Mathematics (PPAM 2009)), Springer LNCS (2009)

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See detailA probabilistic tool for geotechnical assessment of jack-up penetration
Van der Wal, T.; Bouwmeester, D.; Peuchen, J. et al

in Proceedings of the 6th International conference on offshore site investigation and geotechnics (2007, September)

Prediction of jack-up leg penetration requires assesment of uncertainties in calculation models and their input parameter values, including quality and extent of site investigation information. Commonly ... [more ▼]

Prediction of jack-up leg penetration requires assesment of uncertainties in calculation models and their input parameter values, including quality and extent of site investigation information. Commonly, uncertainy assesment is achieved by sensitivity analysis. This paper presents a probabilistic approach for a more accurate prediction of jack-up leg penetration behaviour, as an add-on for conventional Society of Naval Architects and Marine Engineers (SNAME) calculation models.... [less ▲]

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See detailA Probabilistic View of Neighborhood-based Recommendation Methods
Wang, Jun UL; Tang, Qiang

in ICDM 2016 - IEEE International Conference on Data Mining series (ICDM) workshop CLOUDMINE (2016, December 12)

Probabilistic graphic model is an elegant framework to compactly present complex real-world observations by modeling uncertainty and logical flow (conditionally independent factors). In this paper, we ... [more ▼]

Probabilistic graphic model is an elegant framework to compactly present complex real-world observations by modeling uncertainty and logical flow (conditionally independent factors). In this paper, we present a probabilistic framework of neighborhood-based recommendation methods (PNBM) in which similarity is regarded as an unobserved factor. Thus, PNBM leads the estimation of user preference to maximizing a posterior over similarity. We further introduce a novel multi-layer similarity descriptor which models and learns the joint influence of various features under PNBM, and name the new framework MPNBM. Empirical results on real-world datasets show that MPNBM allows very accurate estimation of user preferences. [less ▲]

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See detailProbability and Certainty in the Law of Evidence [Probabilité et Certitude dans la Preuve en Justice
Kinsch, Patrick UL

in Actes de la Section des Sciences Morales et Politiques de l'Institut Grand-Ducal (2008), 12

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See detailProbability signatures of multistate systems made up of two-state components
Marichal, Jean-Luc UL; Mathonet, Pierre; Jorge, Navarro et al

Scientific Conference (2017, July)

The structure signature of a system made up of $n$ components having continuous and i.i.d. lifetimes was defined in the eighties by Samaniego as the $n$-tuple whose $k$-th coordinate is the probability ... [more ▼]

The structure signature of a system made up of $n$ components having continuous and i.i.d. lifetimes was defined in the eighties by Samaniego as the $n$-tuple whose $k$-th coordinate is the probability that the $k$-th component failure causes the system to fail. More recently, a bivariate version of this concept was considered as follows. The joint structure signature of a pair of systems built on a common set of components having continuous and i.i.d. lifetimes is a square matrix of order $n$ whose $(k,l)$-entry is the probability that the $k$-th failure causes the first system to fail and the $l$-th failure causes the second system to fail. This concept was successfully used to derive a signature-based decomposition of the joint reliability of the two systems. In this talk we will show an explicit formula to compute the joint structure signature of two or more systems and extend this formula to the general non-i.i.d. case, assuming only that the distribution of the component lifetimes has no ties. Then we will discuss a condition on this distribution for the joint reliability of the systems to have a signature-based decomposition. Finally we will show how these results can be applied to the investigation of the reliability and signature of multistate systems made up of two-state components. [less ▲]

Detailed reference viewed: 62 (3 UL)
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See detailProbenecid potentiates MPTP/MPP+ toxicity by interference with cellular energy metabolism.
Alvarez-Fischer, Daniel; Noelker, Carmen; Grünewald, Anne UL et al

in Journal of neurochemistry (2013), 127(6), 782-92

The uricosuric agent probenecid is co-administered with the dopaminergic neurotoxin MPTP to produce a chronic mouse model of Parkinson's disease. It has been proposed that probenecid serves to elevate ... [more ▼]

The uricosuric agent probenecid is co-administered with the dopaminergic neurotoxin MPTP to produce a chronic mouse model of Parkinson's disease. It has been proposed that probenecid serves to elevate concentrations of MPTP in the brain by reducing renal elimination of the toxin. However, this mechanism has never been formally demonstrated to date and is questioned by our previous data showing that intracerebral concentrations of MPP(+), the active metabolite of MPTP, are not modified by co-injection of probenecid. In this study, we investigated the potentiating effects of probenecid in vivo and in vitro arguing against the possibility of altered metabolism or impaired renal elimination of MPTP. We find that probenecid (i) is toxic in itself to several neuronal populations apart from dopaminergic neurons, and (ii) that it also potentiates the effects of other mitochondrial complex I inhibitors such as rotenone. On a mechanistic level, we show that probenecid is able to lower intracellular ATP concentrations and that its toxic action on neuronal cells can be reversed by extracellular ATP. Probenecid can potentiate the effect of mitochondrial toxins due to its impact on ATP metabolism and could therefore be useful to model atypical parkinsonian syndromes. [less ▲]

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See detailProbing dipolar angles in soft magnetic nanocomposites by small-angle neutron scattering
Michels, Andreas UL; Weissmüller, J.

in Neutron News (2006), 71(6), 34-35

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See detailProbing electronic lifetimes and phonon anharmonicities in high-quality chemical vapor deposited graphene by magneto-Raman spectroscopy
Neumann, Christoph; Halpaap, Donatus; Reichardt, Sven UL et al

in Applied Physics Letters (2015), 107(23), 233105

Detailed reference viewed: 106 (6 UL)
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See detailProbing gambling urge as a state construct: Evidence from a sample of community gamblers
Canale, Natale; Cornil, Aurélien; Giroux, Isabelle et al

in Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors (2019), 33(2), 154-161

Little effort has been made to systematically test the psychometric properties of the Gambling Craving Scale (GACS; Young & Wohl, 2009). The GACS is adapted from the Questionnaire on Smoking Urges ... [more ▼]

Little effort has been made to systematically test the psychometric properties of the Gambling Craving Scale (GACS; Young & Wohl, 2009). The GACS is adapted from the Questionnaire on Smoking Urges (Tiffany & Drobes, 1991) and thus measures gambling-related urge. Crucially, the validation of scales assessing gambling urge is complex, as this construct is better conceptualized as a state (a transient and context-determined phenomenon). In the present study, we tested the psychometric properties of the French version of the GACS with 2 independent samples of community gamblers following an induction procedure delivered through an audio-guided imagery sequence aimed at promoting gambling urge. This procedure was specifically used to ensure the assessment of gambling urge as a state variable. Participants also completed measures of gambling severity, gambling cognitions and motives, impulsivity, and affect. Confirmatory factor analysis (CFA) showed that the original 3-factor solution (anticipation, desire, relief) did not fit the data well. Additional exploratory factor analysis (EFA) suggested instead a 2-factor solution: intention and desire to gamble dimension and a relief dimension. The factorial structure resulting from the EFA was tested with CFA in a second independent sample, resulting in an acceptable fit. The 2 dimensions presented good internal reliability and correlated differentially with the other study’s variables. The current study showed that, similar to what has been reported for substance-related urges, gambling urges are adequately probed with a bidimensional model. The findings suggest that the French GACS has good psychometric properties, legitimizing its use in research and clinical practice. [less ▲]

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See detailProbing Quantum Confinement within Single Core–Multishell Nanowires
Martínez-Criado, Gema; Homs, Alejandro; Alén, Benito et al

in Nano Letters (2012), 12(11), 5829-5834

Theoretically core–multishell nanowires under a cross-section of hexagonal geometry should exhibit peculiar confinement effects. Using a hard X-ray nanobeam, here we show experimental evidence for carrier ... [more ▼]

Theoretically core–multishell nanowires under a cross-section of hexagonal geometry should exhibit peculiar confinement effects. Using a hard X-ray nanobeam, here we show experimental evidence for carrier localization phenomena at the hexagon corners by combining synchrotron excited optical luminescence with simultaneous X-ray fluorescence spectroscopy. Applied to single coaxial n-GaN/InGaN multiquantum-well/p-GaN nanowires, our experiment narrows the gap between optical microscopy and high-resolution X-ray imaging and calls for further studies on the underlying mechanisms of optoelectronic nanodevices. [less ▲]

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See detailProbing smoking craving with a multidimensional approach: validation of the 12-item French-language version of the Questionnaire on Smoking Urges.
Dethier, Vincent; Heeren, Alexandre; Galanti, Laurence et al

in Neuropsychiatric disease and treatment (2014), 10

BACKGROUND: The current study examined the psychometric properties of the 12-item French-language version of the Questionnaire on Smoking Urges (QSU-12), a widely used multidimensional measure of ... [more ▼]

BACKGROUND: The current study examined the psychometric properties of the 12-item French-language version of the Questionnaire on Smoking Urges (QSU-12), a widely used multidimensional measure of cigarette craving. METHODS: Daily smokers (n=230) completed the QSU-12, the Fagerstrom Test for Nicotine Dependence, and items about addiction-related symptoms. Additional participants (n=40) completed the QSU-12 and the Fagerstrom Test for Nicotine Dependence and were assessed for expired carbon monoxide. RESULTS: Consistent with studies validating the English version of the scale, confirmatory factor analyses supported a two-factor solution in the French version of the scale. Good scale and subscales reliabilities were observed, and convergent validity was evidenced through relationships with dependence and addiction-related symptoms. CONCLUSION: The French-language version of the QSU-12 is an adequate instrument to assess the multidimensional construct of craving in both research and clinical practice. [less ▲]

Detailed reference viewed: 83 (0 UL)
See detailProbing the spin texture of generic helical edge states with an antidot
Rod, Alexia UL; Dolcetto, Giacomo UL; Rachel, Stephan et al

Scientific Conference (2016, March 07)

Detailed reference viewed: 44 (9 UL)
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See detailDas Problem des Wahrheitskriteriums. Zu Hegels Auseinandersetzung mit der skeptischen Aporie des Maßstabs
Heidemann, Dietmar UL

in Kritisches Jahrbuch der Philosophie (2005), 10

Detailed reference viewed: 42 (0 UL)
See detailDas Problem Gewalt an Schulen - Was tun?
Steffgen, Georges UL

Presentation (2007, September)

Detailed reference viewed: 58 (0 UL)