Where Mathematics meets Machine Intelligence
Where Mathematics meets Machine Intelligence
Hi, I’m Sagar Ghosh.
I am a first-year PhD student working on Statistical Machine Learning with a background in pure mathematics and computer science. My work focuses on understanding and designing learning systems through geometric and functional perspectives, with interests spanning manifold learning, geometric deep learning, operator theory, and deep reinforcement learning for autonomous decision-making.
Fun Facts about me:
My Erdős Number is 4, My Ramanujan Number is 6
I study neural architectures that exploit non-Euclidean geometry, with a focus on hyperbolic representations for hierarchical and relational data. My work explores both theoretical properties and practical performance of geometry-aware networks.
I investigate theoretical aspects of Transformer architectures, including expressivity, approximation properties, and geometric variants. This includes developing hyperbolic extensions and analyzing their consistency and representational power.
My research applies tools from operator theory and functional analysis to understand neural networks as operators between function spaces, aiming to bridge classical mathematical theory with modern deep learning models.
I explore reinforcement learning frameworks for autonomous trading systems, focusing on stability, risk-aware decision-making, and learning in non-stationary financial environments.