Results 131 to 140 of about 14,317,493 (293)

Markov Decision Process in the Problem of Dynamic Pricing Policy

open access: yes
Markov decision processes (MDP) are widely used in problems whose solutions may be represented by a certain series of actions. A lot of papers demonstrate successful MDP use in model problems, robotic control problems, planning problems, etc. In addition,
Čižovs, Jurijs, Borisovs, Arkādijs
core  

Long‐run confidence: Estimating uncertainty when using long‐run multipliers

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract Researchers are often interested in the long‐run relationship (LRR) between variables where the dependent variable has dynamic properties. Though determining the long‐run multiplier (LRM) for an independent variable is straightforward, correctly estimating the significance of the LRM is often difficult, especially when time series are short ...
Mark David Nieman, David A. M. Peterson
wiley   +1 more source

Semi-Markov decision processes with partial observation

open access: yes, 2004
We study a semi-Markov decision process on a Borel state space where the state of the system is not known to the decision maker but it takes decisions based on an observation process. We transform this into an equivalent problem with complete information.
Ghosh, Mrinal K, Goswami, Anindya
core  

Improving the Understanding of Late Effects of Testicular Cancer in Adolescent and Young Adult Survivors: TRANSCEND‐XR

open access: yesAndrology, EarlyView.
ABSTRACT Background Testicular cancer (TC) is the most common malignancy amongst adolescents and young adults (AYAs) aged 15–39 years assigned male at birth. Survivors often experience late effects of treatment and report unmet supportive care needs.
Mohamad M. Saab   +30 more
wiley   +1 more source

Spatial heterogeneity in exposure to Brucella suis and pathogenic leptospires in feral pigs across New South Wales

open access: yesAustralian Veterinary Journal, EarlyView.
Feral pigs (Sus scrofa) are important reservoirs for zoonotic and livestock pathogens in Australia, but robust information on the spatial distribution of pathogens in pig populations remains limited. We analysed serological data from a systematic, state‐wide surveillance program to investigate spatial heterogeneity in exposure to Brucella suis and ...
AJ Bengsen   +10 more
wiley   +1 more source

JOINclusion: A serious mobile game for promoting ethnocultural empathy in schools

open access: yesBritish Journal of Developmental Psychology, EarlyView.
Abstract This study examines the efficacy of JOINclusion, a serious mobile game designed to enhance ethnocultural empathy in children aged 8 to 12. Grounded in the Social Emotional Learning (SEL) framework, JOINclusion delivers interactive scenarios through a narrative‐driven Story Mode and a collaborative Multiplayer Mode, encouraging emotional ...
Alessandra Colella   +9 more
wiley   +1 more source

Emotional and motivational experiences in teacher–student relationships and psychological need satisfaction during adolescence: A latent profile and latent transition analysis

open access: yesBritish Journal of Educational Psychology, EarlyView.
Abstract Background Emotional and motivational aspects of teacher–student relationships are central to adolescents' psychological need satisfaction and academic development. However, few longitudinal studies examine how these relational experiences evolve during adolescence or co‐occur with emotional‐motivational functioning.
Fabian Schimmelpfennig, Diana Raufelder
wiley   +1 more source

Approximating multidimensionality with asymmetric unidimensional IRT models

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Unidimensional item response theory (IRT) models are widely used even in settings where assessment data exhibit subtle forms of multidimensionality. Recent empirical evidence suggests that when item difficulty is associated with dimensionality, asymmetric item characteristic curves (ICCs) emerge in the unidimensional approximation.
Xiangyi Liao   +5 more
wiley   +1 more source

First passage of a Markov additive process and generalized Jordan chains [PDF]

open access: yes
In this paper we consider the first passage process of a spectrally negative Markov additive process (MAP). The law of this process is uniquely characterized by a certain matrix function, which plays a crucial role in fluctuation theory.
Michel Mandjes   +3 more
core  

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

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