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Author

Barzan Mozafari

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Preprint Aug 2026

BEGIN AI TRANSACTION: Semantic Isolation for Durable AI Workflows

The prototype, SemIso, propagates semantic context and blocks incompatible resources and branch merges with microsecond-scale checks and shows that these guarantees can be checked and enforced efficiently in middleware.

Barzan Mozafari · 1 citation
Preprint Aug 2026

DAGSmith: Dependency-Aware Rewriting for dbt-Style SQL Pipelines

DAGSmith is introduced, to the best of the authors' knowledge the first holistic dependency-aware source-to-source rewriting system for SQL pipeline DAGs and enables dependency-edge simplification, non-local semantic reuse, downstream-aware pruning, pipeline-aware work placement, rewrite-materialization co-optimization, and frequency-aware optimization.

Jie Liu, Lin Ma, Barzan Mozafari · 0 citations

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