collaborators

6 papers

cs.AI2026

WinSyn: An Automated Pipeline for Realistic Enterprise Question-Answering Evaluation

Amey Varhade, Ananya Sutradhar, Ravishankar Krishnaswamy +1

Enterprise settings provide a challenging environment for question-answering agents, which often rely on Retrieval-Augmented Generation, Deep Research (DR), and related techniques.…

cs.IR2026

EigenLI: Spectral Approximations to Late Interaction

Archish S, Sabyasachi Basu, Ankit Garg +2

Late-interaction models such as ColBERT achieve strong effectiveness by representing each document with many token-level vectors, but this expressivity leads to large indexing cost…

cs.IR2026

Quantization Beyond Uniform Bit Allocation

K. S. Sreeramji, Sabyasachi Basu, Ravishankar Krishnaswamy +2

Quantization is a fundamental technique to handle the growing sizes of embeddings generated by modern models. Existing quantization schemes are largely embedding agnostic and alloc…

cs.LG2025

Learning Filter-Aware Distance Metrics for Nearest Neighbor Search with Multiple Filters

Ananya Sutradhar, Suryansh Gupta, Ravishankar Krishnaswamy +3

Filtered Approximate Nearest Neighbor (ANN) search retrieves the closest vectors for a query vector from a dataset. It enforces that a specified set of discrete labels for the…

cs.DB2025

Cost-Effective, Low Latency Vector Search with Azure Cosmos DB

Nitish Upreti, Harsha Vardhan Simhadri, Hari Sudan Sundar +33

Vector indexing enables semantic search over diverse corpora and has become an important interface to databases for both users and AI agents. Efficient vector search requires deep…

cs.DS2025

Graph-Based Algorithms for Diverse Similarity Search

Piyush Anand, Piotr Indyk, Ravishankar Krishnaswamy +4

Nearest neighbor search is a fundamental data structure problem with many applications in machine learning, computer vision, recommendation systems and other fields. Although the m…