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- W3139586432 abstract "The categorical clustering problem has attracted much attention especially in the last decades since many real world applications produce categorical data. The k-mode algorithm, proposed since 1998, and its multiple variants were widely used in this context. However, they suffer from a great limitation related to the update of the modes in each iteration. The mode in the last step of these algorithms is randomly selected although it is possible to identify many candidate ones. In this paper, a rough density mode selection method is proposed to identify the adequate modes among a list of candidate ones in each iteration of the k-modes. The proposed method, called Density Rough k-Modes (DRk-M) was experimented using real world datasets extracted from the UCI Machine Learning Repository, the Global Terrorism Database (GTD) and a set of collected Tweets. The DRk-M was also compared to many states of the art clustering methods and has shown great efficiency." @default.
- W3139586432 created "2021-04-13" @default.
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- W3139586432 date "2021-03-27" @default.
- W3139586432 modified "2023-10-16" @default.
- W3139586432 title "A rough set based algorithm for updating the modes in categorical clustering" @default.
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- W3139586432 doi "https://doi.org/10.1007/s13042-021-01293-w" @default.
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