Multi-Objective Hybrid Algorithm For The Classification Of Imbalanced Datasets
Classification of imbalanced datasets remained a significant issue in data mining and machine learning (ML) fields. This research work proposed a new idea based on the optimization for handling the imbalanced datasets. A new self-adaptive hybrid algorithm (CSCMAES) is introduced for optimization....
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| Format: | Thesis |
| Language: | English |
| Published: |
2019
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| Online Access: | http://eprints.usm.my/48598/ http://eprints.usm.my/48598/1/Sana%20Saeed%20thesis%20Ph.D%20cut.pdf |
| _version_ | 1848881200315236352 |
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| author | Saeed, Sana |
| author_facet | Saeed, Sana |
| author_sort | Saeed, Sana |
| building | USM Institutional Repository |
| collection | Online Access |
| description | Classification of imbalanced datasets remained a significant issue in data mining
and machine learning (ML) fields. This research work proposed a new idea based
on the optimization for handling the imbalanced datasets. A new self-adaptive hybrid
algorithm (CSCMAES) is introduced for optimization. The proposed algorithm is
grounded on the two famous metaheuristic algorithms: cuckoo search (CS) and covariance
matrix adaptation evolution strategy (CMA-es). For its fast convergence and for
its efficient search procedure, the self-adaptation is proposed in the parameters of the
proposed hybrid algorithm. The effectiveness of this algorithm is verified by applying
it on the unconstrained and constrained test functions through a simulation study.
From the simulation study, it is shown that CSCMAES performed very well on each
test function and produced the best values with minimum standard deviation and with
faster convergence. Thereafter, a multi-objective hybrid algorithm (MOHA), an extension
of the self-adaptive hybrid algorithm is proposed and tested on the established
multi-objective (MO) test functions. The proposed MOHA performed very well on
these test functions. A new methodology is presented for the classification of the imbalanced
datasets. The key idea of this methodology is to estimate the probabilities
for each case in both classes separately. For this purpose, the normal distributions are
applied to each class. The parameters of this distribution are optimized by applying the
proposed MOHA. An efficient performance of this proposed methodology is observed
with the help of an experimental study in which three types of datasets; simulated
datasets, noisy borderline datasets and real-life imbalanced datasets are engaged. |
| first_indexed | 2025-11-15T18:15:14Z |
| format | Thesis |
| id | usm-48598 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:15:14Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-485982021-03-11T03:30:43Z http://eprints.usm.my/48598/ Multi-Objective Hybrid Algorithm For The Classification Of Imbalanced Datasets Saeed, Sana QA1-939 Mathematics Classification of imbalanced datasets remained a significant issue in data mining and machine learning (ML) fields. This research work proposed a new idea based on the optimization for handling the imbalanced datasets. A new self-adaptive hybrid algorithm (CSCMAES) is introduced for optimization. The proposed algorithm is grounded on the two famous metaheuristic algorithms: cuckoo search (CS) and covariance matrix adaptation evolution strategy (CMA-es). For its fast convergence and for its efficient search procedure, the self-adaptation is proposed in the parameters of the proposed hybrid algorithm. The effectiveness of this algorithm is verified by applying it on the unconstrained and constrained test functions through a simulation study. From the simulation study, it is shown that CSCMAES performed very well on each test function and produced the best values with minimum standard deviation and with faster convergence. Thereafter, a multi-objective hybrid algorithm (MOHA), an extension of the self-adaptive hybrid algorithm is proposed and tested on the established multi-objective (MO) test functions. The proposed MOHA performed very well on these test functions. A new methodology is presented for the classification of the imbalanced datasets. The key idea of this methodology is to estimate the probabilities for each case in both classes separately. For this purpose, the normal distributions are applied to each class. The parameters of this distribution are optimized by applying the proposed MOHA. An efficient performance of this proposed methodology is observed with the help of an experimental study in which three types of datasets; simulated datasets, noisy borderline datasets and real-life imbalanced datasets are engaged. 2019-03 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/48598/1/Sana%20Saeed%20thesis%20Ph.D%20cut.pdf Saeed, Sana (2019) Multi-Objective Hybrid Algorithm For The Classification Of Imbalanced Datasets. PhD thesis, Universiti Sains Malaysia. |
| spellingShingle | QA1-939 Mathematics Saeed, Sana Multi-Objective Hybrid Algorithm For The Classification Of Imbalanced Datasets |
| title | Multi-Objective Hybrid Algorithm For
The Classification Of Imbalanced
Datasets |
| title_full | Multi-Objective Hybrid Algorithm For
The Classification Of Imbalanced
Datasets |
| title_fullStr | Multi-Objective Hybrid Algorithm For
The Classification Of Imbalanced
Datasets |
| title_full_unstemmed | Multi-Objective Hybrid Algorithm For
The Classification Of Imbalanced
Datasets |
| title_short | Multi-Objective Hybrid Algorithm For
The Classification Of Imbalanced
Datasets |
| title_sort | multi-objective hybrid algorithm for
the classification of imbalanced
datasets |
| topic | QA1-939 Mathematics |
| url | http://eprints.usm.my/48598/ http://eprints.usm.my/48598/1/Sana%20Saeed%20thesis%20Ph.D%20cut.pdf |