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Himel Mallick

Cornell University

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#artificial intelligence Preprint Sep 2026

FedMHAR: Federated Multimodal Human Activity Recognition using Multi-Agent Reinforcement Learning

An adaptive and cost-aware multimodal HAR framework based on multi-agent reinforcement learning for centralized HAR and extended to federated learning as FedMHAR is proposed and BiFL-PPO, a bidirectional federated optimization strategy in which a server-side PPO policy learns client-specific trust weights and feeds the...

Debasmita Dey, Tanmay Sen, Himel Mallick · 0 citations

Open access Aug 2026

HuMMANet: A Harmonized Cross-Study Resource for Integrative Analysis of Human Gut Microbiome–Metabolome Associations

HuMMANet provides a standardized framework for reproducible microbiome–metabolome integration, enabling cross-study discovery and translational prioritization of conserved microbiome-derived metabolic signatures across human populations and disease states.

Shivangi Verma, Nalin Arora, Chandra Prakash Ajay et al. · bioRxiv · 0 citations