Due to the expansion of urban areas and the decline in residents' acceptance of electric power facilities, the demand for underground transmission is intensifying, and the need for underground transmission is incr...
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Power system analysts and operators use planning and analysistools to perform steady-state analyses like the Newton Raphson technique for an HVAC system. Withthe rapid integration of Renewable sources of energy like...
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Loop acceleration can be used to prove safety, reachability, runtime bounds, and (non-)termination of programs. To this end, a variety of acceleration techniques have been proposed. However, so far all of them have be...
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Loop acceleration can be used to prove safety, reachability, runtime bounds, and (non-)termination of programs. To this end, a variety of acceleration techniques have been proposed. However, so far all of them have been monolithic, i.e., a single loop could not be accelerated using a combination of several different acceleration techniques. In contrast, we present a calculus that allows for combining acceleration techniques in a modular way and we show how to integrate many existing acceleration techniques into our calculus. Moreover, we propose two novel acceleration techniques that can be incorporated into our calculus seamlessly. Some of these acceleration techniques apply only to non-terminating loops. thus, combining them with our novel calculus results in a new, modular approach for proving non-termination. An empirical evaluation demonstrates the applicability of our approach, both for loop acceleration and for proving non-termination.
In this paper, we offer an engaging emotion-based movie recommendation system. With our approach, people may effortlessly convey their feelings through natural language in a search box. Using cutting-edge natural lang...
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the rapid evolution of Mobile Automated Biometric Identification systems (MABIS) presents both opportunities and challenges in ensuring robust security measures. this study employs a multi-faceted approach, combining ...
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the correctness of real-time systems depends both on the correct functionalities and the realtime constraints. To go beyond the existing Timed Automata based techniques, we propose a novel solution that integrates a m...
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ISBN:
(纸本)9783031308222;9783031308239
the correctness of real-time systems depends both on the correct functionalities and the realtime constraints. To go beyond the existing Timed Automata based techniques, we propose a novel solution that integrates a modular Hoare-style forward verifier with a term rewriting system (TRS) on Timed Effects (TimEffs). the main purposes are to: increase the expressiveness, dynamically manipulate clocks, and efficiently solve clock constraints. We formally define a core language C-t, generalizing the real-time systems, modeled using mutable variables and timed behavioral patterns, such as delay, timeout, interrupt, deadline. Secondly, to capture real-time specifications, we introduce TimEffs, a new effects logic, that extends regular expressions with dependent values and arithmetic constraints. thirdly, the forward verifier reasons temporal behaviors - expressed in TimEffs - of target C-t programs. Lastly, we present a purely algebraic TRS, i.e., an extended Antimirov algorithm, to efficiently check language inclusions between TimEffs. To demonstrate the feasibility of our proposal, we prototype the verification system;prove its soundness;report on case studies and experimental results.
Sentiment analysis, which is frequently used to gauge public sentiment in reviews and social media posts, is the technique of analyzing and interpreting feelings and viewpoints in text data. the surge in social media ...
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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 se...
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ISBN:
(纸本)9783031308222;9783031308239
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, 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.
the proceedings contain 30 papers. the special focus in this conference is on Rigorous State-Based Methods. the topics include: Proof construction and Checking on Evolving Abstract State Machines;Modelling a...
ISBN:
(纸本)9783031637896
the proceedings contain 30 papers. the special focus in this conference is on Rigorous State-Based Methods. the topics include: Proof construction and Checking on Evolving Abstract State Machines;Modelling and Analysing a Mechanical Lung Ventilator in mCRL2;Real-Time CCSL: Application to the Mechanical Lung Ventilator;the Mechanical Lung Ventilator Case Study;designing Exception Handling Using Event-B;Verifying HyperLTL Properties in Event-B;thoR: An Alloy5-Like DSL for Interactive theorem Proving in Coq;Event-B as DSL in Isabelle and HOL Experiences from a Prototype;meta-programming Event-B: Advancing Tool Support and Language Extensions;multi-model Animation with JeB;using Symbolic Execution to Transform Turbo Abstract State Machines into Basic Abstract State Machines;semantics Formalisation – From Event-B Contexts to theories;Property Ownership Formal Modelling Using Event-B and iUML-B;an analysis of the Impact of Field-Value Instance Navigation in Alloy’s Model Finding;modal Extensions of the Logic of Abstract State Machines;loose Observation in Event-B;a Lean Reflective Abstract State Machine Definition;transpilation of Petri-nets into B: Shallow and Deep Embeddings;event-B Development of Modelling Human Intervention Request in Self-driving Vehicle systems;formal Modeling and analysis of Apache Kafka in Alloy 6;formal Methods and tools Applied in the Railway Domain;preface;from Event-B to Lambdapi;FRETting and Formal Modelling: A Mechanical Lung Ventilator;Modelling a Mechanical Lung Ventilation System Using TASTD;an Event-B Model of a Mechanical Lung Ventilator;small Step Incremental Verification of Compilers;a Modeling and Verification Framework for Ethereum Smart Contracts.
the proceedings contain 130 papers. the topics discussed include: frequency ratio effects on dynamic behavior of rotor-bearing system;structure and hydraulic analysis of a 5-ton hydraulic press by simulation;hybrid mo...
ISBN:
(纸本)9781643685465
the proceedings contain 130 papers. the topics discussed include: frequency ratio effects on dynamic behavior of rotor-bearing system;structure and hydraulic analysis of a 5-ton hydraulic press by simulation;hybrid modeling of rotor systems dynamics;a generative approach to mass optimization of wheel assembly;design and implementation of salvage device structure with camera detection function;optimization design of harmonic drive flexspline fixture based on orthogonal experiments;mountain micro pile drilling rig and micro pile foundation construction technology;design and application of loading system for mine reducer;evaluation of technical specifications of rotary friction welding machine improved from lathe;and effect of groove depth on herringbone thrust bearing dynamic coefficients.
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