Interactive proofs for verifying (quantum) learning and testing

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• Matthias Caro (Warwick)
• Thursday 16 January 2025, 14:00-15:00
• Computer Laboratory, William Gates Building, Room FW26..

If you have a question about this talk, please contact Tom Gur.

We consider the problem of testing and learning from data in the presence of resource constraints, such as limited memory or weak data access, which place limitations on the efficiency and feasibility of testing or learning. In particular, we ask the following question: Could a resource-constrained learner/tester use interaction with a resource-unconstrained but untrusted party to solve a learning or testing problem more efficiently than they could without such an interaction? In this work, we answer this question both abstractly and for concrete problems, in two complementary ways: For a wide variety of scenarios, we prove that a resource-constrained learner cannot gain any advantage through classical interaction with an untrusted prover. As a special case, we show that for the vast majority of problems in which quantum memory is a meaningful resource, a memory-constrained quantum algorithm cannot overcome its limitations via classical communication with a memory-unconstrained quantum prover. In contrast, when quantum communication is allowed, we construct a variety of interactive proof protocols, for specific learning and testing problems, which allow memory-constrained quantum verifiers to gain significant advantages through delegation to untrusted provers. These results highlight both the limitations and potential of delegating learning and testing problems to resource-rich but untrusted third parties.

This talk is part of the Quantum Computing Seminar series.

This talk is included in these lists:

• Algorithms and Complexity Seminar
• All Talks (aka the CURE list)
• Cambridge talks
• Computer Laboratory, William Gates Building, Room FW26.
• Department of Computer Science and Technology talks and seminars
• Interested Talks
• Quantum Computing Seminar
• School of Technology
• Trust & Technology Initiative - interesting events
• bld31
• ki287

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