Author

Aakash Kumar Tiwari

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#natural language process... Preprint Sep 2026

ShopEase: A Generative AI-Based Multi-Agent Framework for Intelligent Enterprise Customer Support Using Hybrid Retrieval-Augmented Generation

Overall, dense retrieval gives the best accuracy on this dataset, and additional reranking adds processing time without improving classification performance, while Category-level analysis shows strong performance on Shipping, Cancellation, and Return, while Unknown queries remain the main source of errors.

Aakash Kumar Tiwari, Somesh Kumar · 1 citation

#natural language process... Preprint Sep 2026

When Consistency Does Not Mean Reliability: Evaluating Local LLM Judges Against Human Ratings

The results show that high self-consistency does not necessarily indicate high agreement with human judgments when using local LLMs as automatic judges, and highlight the need to evaluate both consistency and human alignment when using local LLMs as automatic judges.

Aakash Kumar Tiwari · 1 citation