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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Najamuddin

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2 papers indexed here

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Open access Aug 2026

A 4D hyperchaotic image encryption scheme using Circular Radius–Angle Transformation and bit-level permutation

With the rapid growth of digital data transmission, secure image encryption has become a critical requirement for protecting visual information against unauthorized access and cryptanalytic attacks. Existing chaotic-based encryption schemes often suffer from limited resistance to statistical and differential attacks du...

Mohammed Khalaf, U. U. Sheikh, Shahidatul Sadiah Binti Abdul Manan et al. · 0 citations
Open access Aug 2026

Variability of Coastal Upwelling and Its Correlation with El Niño Southern Oscillation (ENSO) in the Maluku Sea

Upwelling has important value for marine ecosystems and fisheries businesses because it can increase marine primary productivity and capture fisheries productivity. The objective of this research was to analyze the spatial and temporal variability of coastal upwelling in the Maluku Sea and its relationship to the El Ni...

Najamuddin, S. Nugraha, Martini Djamhur et al. · 0 citations

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