Author

Wasim Khan

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#generative ai Review Open access Sep 2026

A Survey of conversational AI from rule based to generative and retrieval augmented generation chatbots

This survey presents a structured, design-oriented analysis of RAG-driven conversational systems through a principled framework that decomposes architectures along critical dimensions, including document segmentation and chunking strategies, embedding and indexing mechanisms, retriever and re-ranking models, knowledge...

V. Ghaywat, Abhyuday Singh, Aniket K. Shahade et al. · Discover Artificial Intellig... · 0 citations

Open access Aug 2026

PRA-TAM: prototype-regularised residual affinity maximisation for unsupervised graph anomaly detection

A novel framework, prototype-regularised residual affinity maximisation (PRA-TAM), for unsupervised graph anomaly detection is proposed, computationally efficient, scalable, and well-suited to real-world graph anomaly detection applications characterised by complex, heterogeneous data distributions.

Wasim Khan, Sujit R. Wakchaure, Girisha R. Bombale et al. · International Journal of Dat... · 0 citations

Open access Jul 2026

Hybrid AI-Geo-informatics framework for river course change prediction and disaster risk mitigation.

The results demonstrate the potential of AI-driven Geo-Informatics to transform river monitoring from reactive assessment to proactive prediction, contributing to resilience building in accordance with the UN Sendai Framework and the Sustainable Development Goals on climate action and water management.

Jay Modhiya, Wasim Khan, Z. A. Ansari et al. · Scientific Reports · 0 citations