Multiclass classifier based on boundary complexity. - Hamidreza Ghaffari; Hadi Sadoghi Yazdi (Neural Comput. Appl., 2014)

Speeding up the testing and training time for the support vector machines with minimal effect on the performance. - Hamidreza Ghaffari (J. Supercomput., 2021)

Choosing decision tree-based boundary patterns in the intrusion detection systems with large data sets. - Hamidreza Ghaffari (Int. Arab J. Inf. Technol., 2022)

Off-line signature verification system using features linear mapping in the candidate points. - Maryam Houtinezhad; Hamidreza Ghaffari (Multim. Tools Appl., 2022)

Diagnosis of anomalies based on hybrid features extraction in thyroid images. - Mahin Tasnimi; Hamidreza Ghaffari (Multim. Tools Appl., 2023)

Forward propagation dropout in deep neural networks using Jensen-Shannon and random forest feature importance ranking. - Mohsen Heidari; Mohammad Hossein Moattar; Hamidreza Ghaffari (Neural Networks, 2023)

Reconstructing the training data set based on reducing boundary complexity. - Hamidreza Ghaffari; Farzaneh Rafeie (Computing, 2024)

Cloud data center cost management using virtual machine consolidation with an improved artificial feeding birds algorithm. - Mohammad Ali Monshizadeh Naeen; Hamidreza Ghaffari; Hossein Monshizadeh Naeen (Computing, 2024)

Supervised Density-Based Metric Learning Based on Bhattacharya Distance for Imbalanced Data Classification Problems. - Atena Jalali Mojahed; Mohammad Hossein Moattar; Hamidreza Ghaffari (Big Data Cogn. Comput., 2024)

Supervised kernel-based multi-modal Bhattacharya distance learning for imbalanced data classification. - Atena Jalali Mojahed; Mohammad Hossein Moattar; Hamidreza Ghaffari (Knowl. Inf. Syst., 2025)

Botnet detection and information leakage mitigation with differential privacy under generative adversarial networks. - Sanaz Feizi; Hamidreza Ghaffari (Clust. Comput., 2025)

Tiny-ParsBERT: an optimized hybrid model for efficient sentiment analysis in Persian texts. - Mohsen Nooraee; Hamidreza Ghaffari; Fateme Zarisfi Kermani (J. Supercomput., 2025)