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Pritam Deka

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#natural language process... Preprint Oct 2026

KhyontekAI at CheckThat! 2026: Multilingual Dense Retrieval and Cross-Encoder Reranking for Scientific Web Claims

Scientific claims shared through social media platforms frequently reference research findings without explicitly linking to the corresponding scientific publications. Automatically retrieving the correct scientific source for such claims is a challenging multilingual retrieval problem involving semantic matching, para...

Bhargab Jyoti Bhuyan, Pritam Deka · 1 citation

Preprint Aug 2026

When Retrieval Helps and Distracts: Evaluating Evidence-Generating LLMs for Biomedical Claim Verification

Bio-GRACE shows that retrieval utility is source-dependent, motivates selective retrieval, and exposes why retrieval recall and lexical evidence overlap are insufficient for biomedical fact-checking, and introduces Bio-GRACE, a gold-reference-normalized diagnostic for measuring whether retrieved evidence recovers the d...

Pritam Deka, Prabhjot Singh · 0 citations

#natural language process... Jul 2026

Same Facts, Different Diagnosis: Measuring and Mitigating Narrative Anchoring in Clinical Language Models

NarrativeShield, a three-agent pipeline that structurally extracts and verifies clinical facts before diagnostic reasoning begins, reducing the Narrative Anchoring Gap to near-zero and achieving the lowest rate of severely unstable decisions of any method across all models, at a modest and mechanistically expected accu...

Prabhjot Singh, Pritam Deka, V. Chennareddy · arXiv.org · 0 citations