Combination of rough set and cosine similarity approaches in student graduation prediction.

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Title: Combination of rough set and cosine similarity approaches in student graduation prediction.
Authors: Go, Ratna Yulika1 ratna.yulika@esaunggul.ac.id, Asianto, Tinuk Andriyanti1 tinuk.andriyanti@esaunggul.ac.id, Setiowati, Dewi1 dewi.setiowati@esaunggul.ac.id, Meilisa, Ranny1 meilisa.rannya@gmail.com, Munthe, Christine Cecylia2 Chri010@brin.go.id, Kusumawardhana, R. Hendra3 r.hendra.k@gmail.com
Source: International Journal of Electrical & Computer Engineering (2088-8708). Dec2025, Vol. 15 Issue 6, p6001-6011. 11p.
Subjects: Rough sets, Case-based reasoning, Higher education, Academic achievement
Abstract: Higher education institutions must deliver high-quality education that produces graduates who are knowledgeable, skilled, creative, and competitive. In this system, students are a vital asset, and their timely graduation rate is an important factor to consider. In the Department of Computer Science, a challenge arises in distinguishing between students who graduate on time and those who do not. With a low on-time graduation rate of just 1.90% out of 158 graduates, this issue could negatively affect the institution's accreditation evaluation. This research employs the case-based reasoning method, enhanced with an indexing process using rough sets and a prediction process utilizing cosine similarity. The testing, conducted using k-fold validation with 60%, 70%, and 80% of the data, produced average accuracy rates of 64.2%, 66.3%, and 65.6%, respectively. The test results indicate that the highest average accuracy of 66.3% was achieved with 70% of the cases. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Electrical & Computer Engineering (2088-8708) is the property of Institute of Advanced Engineering & Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 190950329
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Combination of rough set and cosine similarity approaches in student graduation prediction.
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  Data: <searchLink fieldCode="AR" term="%22Go%2C+Ratna+Yulika%22">Go, Ratna Yulika</searchLink><relatesTo>1</relatesTo><i> ratna.yulika@esaunggul.ac.id</i><br /><searchLink fieldCode="AR" term="%22Asianto%2C+Tinuk+Andriyanti%22">Asianto, Tinuk Andriyanti</searchLink><relatesTo>1</relatesTo><i> tinuk.andriyanti@esaunggul.ac.id</i><br /><searchLink fieldCode="AR" term="%22Setiowati%2C+Dewi%22">Setiowati, Dewi</searchLink><relatesTo>1</relatesTo><i> dewi.setiowati@esaunggul.ac.id</i><br /><searchLink fieldCode="AR" term="%22Meilisa%2C+Ranny%22">Meilisa, Ranny</searchLink><relatesTo>1</relatesTo><i> meilisa.rannya@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Munthe%2C+Christine+Cecylia%22">Munthe, Christine Cecylia</searchLink><relatesTo>2</relatesTo><i> Chri010@brin.go.id</i><br /><searchLink fieldCode="AR" term="%22Kusumawardhana%2C+R%2E+Hendra%22">Kusumawardhana, R. Hendra</searchLink><relatesTo>3</relatesTo><i> r.hendra.k@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Electrical+%26+Computer+Engineering+%282088-8708%29%22">International Journal of Electrical & Computer Engineering (2088-8708)</searchLink>. Dec2025, Vol. 15 Issue 6, p6001-6011. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Rough+sets%22">Rough sets</searchLink><br /><searchLink fieldCode="DE" term="%22Case-based+reasoning%22">Case-based reasoning</searchLink><br /><searchLink fieldCode="DE" term="%22Higher+education%22">Higher education</searchLink><br /><searchLink fieldCode="DE" term="%22Academic+achievement%22">Academic achievement</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Higher education institutions must deliver high-quality education that produces graduates who are knowledgeable, skilled, creative, and competitive. In this system, students are a vital asset, and their timely graduation rate is an important factor to consider. In the Department of Computer Science, a challenge arises in distinguishing between students who graduate on time and those who do not. With a low on-time graduation rate of just 1.90% out of 158 graduates, this issue could negatively affect the institution's accreditation evaluation. This research employs the case-based reasoning method, enhanced with an indexing process using rough sets and a prediction process utilizing cosine similarity. The testing, conducted using k-fold validation with 60%, 70%, and 80% of the data, produced average accuracy rates of 64.2%, 66.3%, and 65.6%, respectively. The test results indicate that the highest average accuracy of 66.3% was achieved with 70% of the cases. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Electrical & Computer Engineering (2088-8708) is the property of Institute of Advanced Engineering & Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.11591/ijece.v15i6.pp6001-6011
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      – Code: eng
        Text: English
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      – SubjectFull: Case-based reasoning
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      – SubjectFull: Higher education
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      – SubjectFull: Academic achievement
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      – TitleFull: Combination of rough set and cosine similarity approaches in student graduation prediction.
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            NameFull: Go, Ratna Yulika
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            NameFull: Asianto, Tinuk Andriyanti
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            NameFull: Setiowati, Dewi
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            – D: 01
              M: 12
              Text: Dec2025
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              Y: 2025
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