Live and recent posts from across the Fediverse tagged #temporallogic, aggregated by home.social.
JavaSense – engine suy luận Java cho logic thời gian, xử lý hàng triệu facts, hỗ trợ thay thế quy tắc phức tạp và GPU tăng tốc. Ứng dụng: phân tích chuỗi cung ứng, phát hiện gian lận, phát hiện chuỗi sự kiện, quyết định dựa thời gian, reasoning đồ thị. Đang tìm kiếm phản hồi, demo và ý tưởng thực tiễn. Liên hệ [email protected] 📩 #Java #AI #TemporalLogic #RuleEngine #DataProcessing #Vietnam #CôngNghệ #PhátTriển
https://www.reddit.com/r/SideProject/comments/1qpryjg/i_built_a_javabas
Today, we had a super interesting ISE research seminar presentation from our colleague @sashabruns on variants of temporal modeling for RDF, as e.g. RDF reification, RDF singleton properties, named graphs, RDF*, and more. How do you evaluate the efficiency of the different modelings? Guidelines and best practices are currently developed.
@fizise @tabea @enorouzi @heikef @joerg #RDF #temporalLogic #semanticweb #knowledgegraphs #ontologies #ontologicalengineering
A. Bajwa et al., "Stack-Aware Hyperproperties"¹
A hyperproperty relates executions of a program and is used to formalize security objectives such as confidentiality, non-interference, privacy, and anonymity. Formally, a hyperproperty is a collection of allowable sets of executions. A program violates a hyperproperty if the set of its executions is not in the collection specified by the hyperproperty. The logic HyperCTL^* has been proposed in the literature to formally specify and verify hyperproperties. The problem of checking whether a finite-state program satisfies a HyperCTL^* formula is known to be decidable. However, the problem turns out to be undecidable for procedural (recursive) programs. Surprisingly, we show that decidability can be restored if we consider restricted classes of hyperproperties, namely those that relate only those executions of a program which have the same call-stack access pattern. We call such hyperproperties, \emph{stack-aware hyperproperties.} Our decision procedure can be used as a proof method for establishing security objectives such as noninference for recursive programs, and also for refuting security objectives such as observational determinism. Further, if the call stack size is observable to the attacker, the decision procedure provides exact verification.
#ResearchPapers #arXiv #Logic #TemporalLogic #ModelChecking
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¹ https://arxiv.org/abs/2301.11521
