Abacus: A Cost-Based Optimizer for Semantic Operator Systems

Published in VLDB, 2026

Recommended citation: Russo, Matthew; Liu, Chunwei; Sudhir, Sivaprasad; Vitagliano, Gerardo; Cafarella, Michael; Kraska, Tim; Madden, Samuel. (2026). "Abacus: A Cost-Based Optimizer for Semantic Operator Systems." VLDB. https://arxiv.org/pdf/2505.14661