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Independent research preprints shared through ADHAYAN.
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Lightweight Prompt Injection Detection: From Centroid-Based Embedding Classification to a Hybrid Guardrail
Preprint · Independent research
Prashanna Tiwari
Prompt injection remains one of the most practical threats to large language model (LLM) applications. This paper presents a lightweight approach to prompt-injection detection, moving from centroid-based embedding...
Semantic Segmentation for Autonomous Agricultural Robots: A U-Net Approach with Auto-Generated Labels
Preprint · Independent research
Prashanna Tiwari
This paper presents the development of a semantic segmentation pipeline designed for autonomous navigation in agricultural environments. Inspired by the NATERIDA microbots project—an AI-powered exploration robot...
Autonomous Edge Robotics: A Comparative Analysis of Behavioral Cloning and Deep Q-Networks in Constrained 2D Environments
Preprint · Independent research
Prashanna Tiwari
The development of lightweight, reactive navigation systems for mobile edge robotics is a critical challenge in modern computer science. Traditional pathfinding relies on heavy, map-based computations which are often...