Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Sokol, Ondřej"'
Publikováno v:
(2017) Applied Soft Computing, 60, 752-762
The categorization of retail products is essential for the business decision-making process. It is a common practice to classify products based on their quantitative and qualitative characteristics. In this paper we use a purely data-driven approach.
Externí odkaz:
http://arxiv.org/abs/2405.05218
Autor:
Sokol, Ondřej, Holý, Vladimír
We propose a measure of product substitutability based on correlation of common purchases, which is fast to compute and easy to interpret. In an empirical study of a drugstore retail chain, we demonstrate its properties, compare it to a similarly sim
Externí odkaz:
http://arxiv.org/abs/2201.12140
Autor:
Sokol, Ondřej, Holý, Vladimír
The method of Hol\'y, Sokol and \v{C}ern\'y (Applied Soft Computing, 2017, Vol. 60, p. 752-762) clusters objects based on their incidence in a large number of given sets. The idea is to minimize the occurrence of multiple objects from the same cluste
Externí odkaz:
http://arxiv.org/abs/2102.01424
Autor:
Sokol, Ondřej, Holý, Vladimír
Publikováno v:
International Journal of Market Research, 63(4), 454-470 (2021)
In retailing, it is important to understand customer behavior and determine customer value. A useful tool to achieve such goals is the cluster analysis of transaction data. Typically, a customer segmentation is based on the recency, frequency and mon
Externí odkaz:
http://arxiv.org/abs/1909.02996
We consider the algorithm by Ferson et al. (Reliable computing 11(3), p. 207-233, 2005) designed for solving the NP-hard problem of computing the maximal sample variance over interval data, motivated by robust statistics (in fact, the formulation can
Externí odkaz:
http://arxiv.org/abs/1905.07821
Autor:
Sokol, Ondřej, Holý, Vladimír
The knowledge of the number of customers is the pillar of retail business analytics. In our setting, we assume that a portion of customers is monitored and easily counted due to the loyalty program while the rest is not monitored. The behavior of cus
Externí odkaz:
http://arxiv.org/abs/1904.10199
Autor:
Sokol, Ondřej, Frýd, Lukáš
Publikováno v:
In Socio-Economic Planning Sciences April 2023 86
Autor:
Sokol, Ondřej1 (AUTHOR) ondrej.sokol@vse.cz, Holý, Vladimír1 (AUTHOR)
Publikováno v:
International Journal of Market Research. Jul2021, Vol. 63 Issue 4, p454-470. 17p. 1 Diagram, 4 Charts, 7 Graphs.
Autor:
Formánek, Tomáš, Sokol, Ondřej
Publikováno v:
In Journal of Retailing and Consumer Services May 2022 66
Autor:
Sokol, Ondřej
This thesis deals with the calculation of the upper limit of the sample variance when the exact data are not known but intervals which certainly contain them are available. Generally, finding the upper limit of the sample variance knowing only interv
Externí odkaz:
http://www.nusl.cz/ntk/nusl-193240