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cs.DB2026
One Index for Subsumption and Roll-up across Time, Geography, and Ontology
Madhulatha Mandarapu, Sandeep Kunkunuru
Time-series, geospatial, and ontology systems each maintain a hierarchy -- day <= month <= year, zip <= city, is-a / part-of -- and each indexes it in a separate silo. We observe t…
cs.DB2026★ 1 cited
Open Biomedical Knowledge Graphs at Scale: Construction, Federation, and AI Agent Access with Samyama Graph Database
Madhulatha Mandarapu, Sandeep Kunkunuru
Biomedical knowledge is fragmented across siloed databases -- Reactome for pathways, STRING for protein interactions, ClinicalTrials.gov for study registries, DrugBank for drug voc…
cs.DB2026
Samyama: A Unified Graph-Vector Database with In-Database Optimization, Agentic Enrichment, and Hardware Acceleration
Madhulatha Mandarapu, Sandeep Kunkunuru
Modern data architectures are fragmented across graph databases, vector stores, analytics engines, and optimization solvers, resulting in complex ETL pipelines and synchronization…