Author

Arkadeep Acharya

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#artificial intelligence Review Aug 2026

SearchWiki: Learning to Build and Navigate Knowledge Wikis for Active Information Seeking

SearchWiki paired with WikiResearcher-9B demonstrates that learned navigation over structured corpora is a superior alternative to flat retrieval, and optimizing the agent's navigation policy with on-policy reinforcement learning with a multi-component reward function balancing answer correctness, retrieval quality and...

Guransh Singh, Vishwajeet Kumar, Arkadeep Acharya et al. · 0 citations

#artificial intelligence Preprint Aug 2026

Spatial Matryoshka Training for Multi-Granularity Visual Document Retrieval

It is demonstrated that models trained using ColSNAP maintain near full-resolution retrieval performance under substantial compression and that ColSNAP transfers effectively across multiple late-interaction backbones, and achieves most of its improvements via a lightweight adaptation stage applied to a pre-trained retr...

Trishan Singha Roy, Arkadeep Acharya, Vishwajeet Kumar et al. · 0 citations

Jul 2026

IndicMedQA: Multimodal Medical Query Analysis in Indian Languages

This work introduces IndicMedQA, a novel multimodal AI framework that integrates Indic large language models (LLMs) and visual encoders to analyze patient inquiries using both textual and visual cues, and creates a multilingual multimodal medical corpus spanning seven major Indian languages, translated using a semi-aut...

Akash Ghosh, Arkadeep Acharya, M. Muhsin et al. · ACM Transactions on Computin... · 2 citations