~/talks

Alexandra Silva

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From Rewriting to Fixpoints: Solving Recursive Equations with E-GraphsEGRAPHS 20262026-06-15
Extends e-graphs to represent recursive variables by adding secondary definitional edges that link a variable to its definition without merging, builds a…
Talk on
Weighted NetKAT: A Programming Language For Quantitative Network VerificationPLDI 20262026-06-15
Weighted NetKAT extends NetKAT to be parametric on a semiring and provides both denotational and operational semantics plus a compiler that turns programs into…
Talk
Probabilistic Concurrent Reasoning in Outcome Logic: Independence, Conditioning, and(…)POPL 20262026-01-11
Introduces Probabilistic Concurrent Outcome Logic (pcOL) that composes concurrent separation logic, probabilistic separation logic, and Outcome Logic to prove…
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StacKAT: Infinite State Network VerificationPLDI 20252025-06-16
Defines StacKAT, a packet-language that adds a single variable-size stack payload with push/pop to NetKAT-style programs and proves program equivalence…
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Active Learning of Symbolic NetKAT AutomataPLDI 20252025-06-16
Presents algorithms that learn symbolic NetKAT automata from active queries, proves soundness and termination, and ships a prototype implementation with…
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Keynote Talk: Outcome Logic: a foundational framework for concurrent and probabilistic(…)VMCAI 20252025-01-20
Presents Outcome Logic as a concrete framework that gives a compositional denotational semantics for programs mixing nondeterminism/concurrency and randomness…
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Total Outcome Logic: Termination and Nontermination Proving for Effectful BranchingTPSA 20252025-01-19
Presents Total Outcome Logic, a single logic that models program runs as maps from states to semiring-weighted outcomes and adds an explicit divergence outcome…
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A Demonic Outcome Logic for Randomized NondeterminismPOPL 20252025-01-19
Introduces Demonic Outcome Logic that models randomized programs with adversarial nondeterminism using the convex power set semantics, proving a distributive…
Talk
Outcome Separation Logic: Local Reasoning for Correctness and Incorrectness with(…)OOPSLA 20242024-10-20
Outcome Separation Logic gives a single formalism that proves both correctness and incorrectness for programs with effects by making postconditions talk about…
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KATch: A Fast Symbolic Verifier for NetKATPLDI 20242024-06-24
KATch implements NetKAT verification in Scala and replaces exhaustive packet enumeration with symbolic packets, BDD-style relations called SPs that are…
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Outcome Logic: A Unifying Foundation for Correctness and Incorrectness Reasonin...OOPSLA 20232023-10-23
Outcome Logic (OL) replaces a single postcondition with outcome-indexed assertions over sets of states, adds an outcome conjunction that composes reachable…
Talk
On Iteration in Discrete Probabilistic ProgrammingLAFI 20232023-01-15
Extends the discrete PPL dice with two concrete unbounded-iteration constructs and shows how exact inference still runs by compiling into binary decision…
Talk on
Finding a research topic (or being found by a research topic?)PLMW @ POPL 20222022-01-17
Chronicles a research path that starts with an undergraduate project on the compfish framework and evolves through four years of co-algebra, a postdoc building…
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Coalgebra for the working programming languages researcherPOPL 20222022-01-16
Coalgebraic methods center on a functor that generates syntax, denotational and operational semantics, and equivalence proofs; from that one structure…
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