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This method is based on the idea of \u201csomewhat open sets\u201d which is one of the celebrated generalizations of open sets. We first generate some topologies from the different types of<jats:inline-formula><jats:alternatives><jats:tex-math>$$N_\\rho $$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><mml:msub><mml:mi>N<\/mml:mi><mml:mi>\u03c1<\/mml:mi><\/mml:msub><\/mml:math><\/jats:alternatives><\/jats:inline-formula>-neighborhoods. Then, we define new types of rough approximations and accuracy measures with respect to somewhat open and somewhat closed sets. We study their main properties and prove that the accuracy and roughness measures preserve the monotonic property. One of the unique properties of these approximations is the possibility of comparing between them. We also compare our approach with the previous ones, and show that it is more accurate than those induced from open,<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\alpha $$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><mml:mi>\u03b1<\/mml:mi><\/mml:math><\/jats:alternatives><\/jats:inline-formula>-open, and semi-open sets. Moreover, we examine the effectiveness of the followed method in a problem of Dengue fever. Finally, we discuss the strengths and limitations of our approach and propose some future work.<\/jats:p>","DOI":"10.1007\/s40747-022-00704-x","type":"journal-article","created":{"date-parts":[[2022,3,14]],"date-time":"2022-03-14T04:12:31Z","timestamp":1647231151000},"page":"4101-4113","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":57,"title":["Topological approach to generate new rough set models"],"prefix":"10.1007","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8074-1102","authenticated-orcid":false,"given":"Tareq M.","family":"Al-shami","sequence":"first","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2022,3,14]]},"reference":[{"key":"704_CR1","doi-asserted-by":"crossref","unstructured":"Abd El-Monsef M, Embaby OA, El-Bably MK (2014) Comparison between rough set approximations based on different topologies. 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