220 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of WrocławPL6 papers
- Adam Mickiewicz University in PoznańPL2 papers
- Graz University of TechnologyAT2 papers
- Hokkaido UniversityJP2 papers
- Aalborg UniversityDK1 paper
- Cardiff UniversityGB1 paper
- Clinical Research OrganizationBD1 paper
- Gdańsk University of TechnologyPL1 paper
- Glasgow Caledonian UniversityGB1 paper
- Hochschule Campus WienAT1 paper
- Institute of MathematicsPL1 paper
- Institute of PsychologyPL1 paper
14 papers
Investigate how developers and managers view security design in software
Asif Imran
Software security requirements have been traditionally considered as a non-functional attribute of the software. However, as more software started to provide services online, exist…
Artificial Intelligence Technologies in Education: Benefits, Challenges and Strategies of Implementation
Mieczysław L. Owoc, Agnieszka Sawicka, Paweł Weichbroth
Since the education sector is associated with highly dynamic business environments which are controlled and maintained by information systems, recent technological advancements and…
Sojourn times of Gaussian processes with trend
Krzysztof Debicki, Peng Liu, Zbigniew Michna
We derive exact tail asymptotics of sojourn time above the level as , wher…
Clustering Macroeconomic Time Series
Iwo Augustyński, Paweł Laskoś-Grabowski
The data mining technique of time series clustering is well established in many fields. However, as an unsupervised learning method, it requires making choices that are nontriviall…
The impact of stochastic lead times on the bullwhip effect under correlated demand and moving average forecasts
Zbigniew Michna, Stephen M. Disney, Peter Nielsen
We quantify the bullwhip effect (which measures how the variance in replenishment orders is amplified as the orders move up the supply chain) when random demands and random lead ti…
Noncommutative probability of type D
Marek Bożejko, Wiktor Ejsmont, Takahiro Hasebe
We construct a deformed Fock space and a Brownian motion coming from Coxeter groups of type D. The construction is analogous to that of the -Fock space (of type A) and the $(α,q…
Sample Variance in Free Probability
Wiktor Ejsmont, Franz Lehner
Let denote i.i.d.~centered standard normal random variables, then the law of the sample variance is the -distribution w…
A Characterization of the Normal Distribution by the Independence of a Pair of Random Vectors
Wiktor Ejsmont
Kagan and Shalaevski 1967 have shown that if the random variables are independent and identically distributed and the distribution of $a_i…
Fock space associated to Coxeter group of type B
Marek Bożejko, Wiktor Ejsmont, Takahiro Hasebe
In this article we construct a generalized Gaussian process coming from Coxeter groups of type B. It is given by creation and annihilation operators on an -Fock space, which…
New characterization of two-state normal distribution
Wiktor Ejsmont
In this article we give a purely noncommutative criterion for the characterization of two-state normal distribution. We prove that families of two-state normal distribution can be…
Studying Paths of Participation in Viral Diffusion Process
Jarosław Jankowski, Sylwia Ciuberek, Anita Zbieg +1
Authors propose a conceptual model of participation in viral diffusion process composed of four stages: awareness, infection, engagement and action. To verify the model it has been…
Explicit formula for the supremum distribution of a spectrally negative stable process
Zbigniew Michna
In this article we get simple explicit formulas for $\Exp\sup_{s\leq t}X(s)$ where is a spectrally positive or negative Lévy process with infinite variation. As a consequence w…
Degressive proportionality in the European Parliament
Katarzyna Cegielka
The division of mandates to the European Parliament posed difficulties since the beginning of its operation. Introduction of the degressive proportionality principle to legal acts…
Operator Formalism on the Symmetric Algebraic Curves
F. Ferrari, J. Sobczyk, W. Urbanik
In this work, the following conjectures are proven in the case of a Riemann surface with abelian group of symmetry: a) The systems on a Riemann surface are equivalent to…