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Yuxiang Lei

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Iterative-Epoch Online Cycle Elimination for Context-Free Language ReachabilityOOPSLA 20242024-10-20
An iterative-epoch framework identifies grammar transitive symbols and collapses on-the-fly cycles in CFL-reachability graphs, reducing worklist blowup and…
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Context-Free Language Reachability via Skewed TabulationPLDI 20242024-06-24
Proposes skewed tabulation that rewrites grammars and treats certain summary edges as propagating edges so the solver avoids generating intermediary summary…
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Recursive State Machine Guided Graph Folding for Context-Free Language ReachabilityPLDI 20232023-06-17
An algorithm called graph folding GF identifies adjacent node pairs that are provably removable for CFL‑reachability by examining only their incoming and…
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Taming Transitive Redundancy for Context-Free Language ReachabilityOOPSLA 20222022-12-05
CFL-reachability uses on-the-fly edge derivation; this work introduces POCR running on a hybrid spanning-tree + adjacency-list representation to enforce a…
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