Results 121 to 130 of about 1,578 (156)

An Optuna-Based Metaheuristic Optimization Framework for Biomedical Image Analysis

Engineering, Technology & Applied Science Research
The success of Deep Learning (DL) in biomedical imaging heavily relies on optimal hyperparameter selection, which remains a complex and computationally intensive challenge. This paper introduces a metaheuristic-inspired Optuna framework for efficient hyperparameter optimization and validates its effectiveness using U-Net as a case study for brain MRI ...
openaire   +1 more source

Ionospheric TEC Prediction in low-latitude Indian region during geomagnetic storm periods based on XGBoost with Optuna framework and comparison with IRI-Plas 2020

This paper introduces a strong 24-hour TEC forecast model based on the Extreme Gradient Boosting (XGBoost) algorithm, implemented for GPS-based TEC data at both the IISC and Chum stations.
Kumar, S. Kishore, Jude, Andrew F., Kenisha, J., Logesh, S., Dass, Sarat C.; id_orcid, Muthukumaran, T., Mukesh, R., Kiruthiga, S., Cynthia, G.   +8 more
core   +1 more source

PREDIKSI HARGA DAGING AYAM BROILER DI JAWA TIMUR MENGGUNAKAN METODE XGBOOST DENGAN OPTIMASI OPTUNA

Broiler chicken meat is one of the most widely consumed poultry commodities in Indonesia due to its affordable price and abundant availability. However, broiler chicken prices often experience significant fluctuations due to various factors, such as the ...
Salsabilah, Elina
core  

GWtuna: Trawling through the data to find Gravitational Waves with Optuna and Jax

GWtuna is a fast gravitational-wave search prototype built on Optuna (optimisation software library) and JAX (accelerator-orientated array computation library) [1, 2]. Using Optuna, we introduce black box optimisation algorithms and evolutionary strategy algorithms to the gravitational-wave community.
Green, Susanna, Lundgren, Andrew
openaire   +2 more sources

Pronóstico de la velocidad del viento entre 80-95 km sobre la costa peruana utilizando EM, VMD, LSTM y Optuna

Universidad Nacional Agraria La Molina. Escuela de Posgrado. Maestría en Estadística AplicadaEl análisis de la predicción del viento en la mesósfera y baja termósfera (MLT) es esencial para entender mejor las dinámicas atmosféricas sobre Lima y
Mauricio Timana Christian
core  

PERAMALAN KUNJUNGAN WISATAWAN MANCANEGARA MENGGUNAKAN MODEL SARIMA-XGBOOST DENGAN OPTIMASI OPTUNA

The Indonesian tourism sector has experienced significant changes following the COVID-19 pandemic, highlighting the need for accurate forecasting systems to support data-driven policy decisions.
Malva, Maisie Yunita
core  

Identity-Aware Lightweight MobileNetV2 with Distillation and Optuna for Face Spoofing Detection [PDF]

Presentation attacks, commonly known as face spoofing, remain a major security challenge in facial recognition-based authentication systems because forged media such as printed photos and replayed videos can deceive biometric verification.
Sahputra, Alif, Muhammad, Alva Hendi
core  

Samougađanje hiperparametara Cartographer algoritma korištenjem radnog okvira Optuna [PDF]

This work provides a more detailed overview of the theoretical elements of the algorithms and methods used throughout the project. A basic description of SLAM algorithms is given, followed by the specific characteristics of the Cartographer algorithm.
openaire  

Fine-Tuning CNN-BiGRU for Intrusion Detection with SMOTE Optimization Using Optuna

Network security faces a significant challenge in developing effective models for intrusion detection within network systems. Network Intrusion Detection Systems (NIDS) are vital for protecting network traffic and preempting potential attacks by ...
BENCHAMA, Asmaa, ZEBBARA, Khalid
core  

Penerapan Model Hybrid CNN-Residual BiLSTM dengan Optimasi Optuna Untuk Prediksi Time-Series: Studi Kasus Peramalan Degradasi Pressure Compressor Discharge Pada Turbin Gas

Prediksi akurat degradasi Compressor Discharge Pressure (PCD) krusial untuk keandalan operasional dan optimalisasi pemeliharaan turbin gas di Central Processing Plant.
Pratama, Andika
core